merge with head

.gitignore

@@ -8,6 +8,7 @@ objs
 # Python items
 cython_debug/
 python_build/
+python_format_venv/
 .coverage*
 .eggs
 htmlcov/

BUILD

@@ -401,6 +401,7 @@ grpc_cc_library(
         "include/grpc/impl/codegen/atm_gcc_atomic.h",
         "include/grpc/impl/codegen/atm_gcc_sync.h",
         "include/grpc/impl/codegen/atm_windows.h",
+        "include/grpc/impl/codegen/gpr_slice.h",
         "include/grpc/impl/codegen/gpr_types.h",
         "include/grpc/impl/codegen/port_platform.h",
         "include/grpc/impl/codegen/slice.h",
@@ -663,11 +664,14 @@ grpc_cc_library(
         "src/core/ext/client_channel/connector.c",
         "src/core/ext/client_channel/default_initial_connect_string.c",
         "src/core/ext/client_channel/http_connect_handshaker.c",
+        "src/core/ext/client_channel/http_proxy.c",
         "src/core/ext/client_channel/initial_connect_string.c",
         "src/core/ext/client_channel/lb_policy.c",
         "src/core/ext/client_channel/lb_policy_factory.c",
         "src/core/ext/client_channel/lb_policy_registry.c",
         "src/core/ext/client_channel/parse_address.c",
+        "src/core/ext/client_channel/proxy_mapper.c",
+        "src/core/ext/client_channel/proxy_mapper_registry.c",
         "src/core/ext/client_channel/resolver.c",
         "src/core/ext/client_channel/resolver_factory.c",
         "src/core/ext/client_channel/resolver_registry.c",
@@ -680,11 +684,14 @@ grpc_cc_library(
         "src/core/ext/client_channel/client_channel_factory.h",
         "src/core/ext/client_channel/connector.h",
         "src/core/ext/client_channel/http_connect_handshaker.h",
+        "src/core/ext/client_channel/http_proxy.h",
         "src/core/ext/client_channel/initial_connect_string.h",
         "src/core/ext/client_channel/lb_policy.h",
         "src/core/ext/client_channel/lb_policy_factory.h",
         "src/core/ext/client_channel/lb_policy_registry.h",
         "src/core/ext/client_channel/parse_address.h",
+        "src/core/ext/client_channel/proxy_mapper.h",
+        "src/core/ext/client_channel/proxy_mapper_registry.h",
         "src/core/ext/client_channel/resolver.h",
         "src/core/ext/client_channel/resolver_factory.h",
         "src/core/ext/client_channel/resolver_registry.h",
@@ -1026,7 +1033,7 @@ grpc_cc_library(
         "src/core/ext/transport/cronet/transport/cronet_transport.c",
     ],
     hdrs = [
-        "third_party/objective_c/Cronet/cronet_c_for_grpc.h",
+        "third_party/Cronet/bidirectional_stream_c.h",
     ],
     language = "c",
     public_hdrs = [
@@ -1078,6 +1085,7 @@ grpc_cc_library(
         "src/cpp/common/completion_queue_cc.cc",
         "src/cpp/common/core_codegen.cc",
         "src/cpp/common/rpc_method.cc",
+        "src/cpp/common/version_cc.cc",
         "src/cpp/server/async_generic_service.cc",
         "src/cpp/server/create_default_thread_pool.cc",
         "src/cpp/server/dynamic_thread_pool.cc",
@@ -1090,6 +1098,7 @@ grpc_cc_library(
         "src/cpp/server/server_context.cc",
         "src/cpp/server/server_credentials.cc",
         "src/cpp/server/server_posix.cc",
+        "src/cpp/thread_manager/thread_manager.cc",
         "src/cpp/util/byte_buffer_cc.cc",
         "src/cpp/util/slice_cc.cc",
         "src/cpp/util/status.cc",

INSTALL.md

@@ -61,49 +61,45 @@ gRPC C Core library.
 There are several ways to build under Windows, of varying complexity depending
 on experience with the tools involved.
 
-<!--
+###Pre-generated Visual Studio solution
-###Visual Studio
 
-Versions 2013 and 2015 are both supported. You can use [their respective
+The pre-generated VS projects & solution are checked into the repository under the [vsprojects](/vsprojects) directory.
-community
-editions](https://www.visualstudio.com/en-us/downloads/download-visual-studio-vs.aspx).
   
-Building the C Core:
+###Building using CMake (with BoringSSL)
-- Open [grpc.sln](https://github.com/grpc/grpc/blob/master/vsprojects/grpc.sln).
+- Install [CMake](https://cmake.org/download/).
-- Select your build target.
+- Install [Active State Perl](http://www.activestate.com/activeperl/) (`choco install activeperl`)
-- Build the `grpc` project.
+- Install [Ninja](https://ninja-build.org/) (`choco install ninja`)
+- Install [Go](https://golang.org/dl/) (`choco install golang`)
+- Install [yasm](http://yasm.tortall.net/) and add it to `PATH` (`choco install yasm`)
+- Run these commands in the repo root directory
+```
+> md .build
+> cd .build
+> call "%VS140COMNTOOLS%..\..\VC\vcvarsall.bat" x64
+> cmake .. -GNinja -DCMAKE_BUILD_TYPE=Release
+> cmake --build .
+```
+NOTE: Currently you can only use Ninja to build using cmake on Windows (because of the boringssl dependency).
 
-Building the C++ runtime:
+###msys2 (with mingw)
-- You need [CMake](https://cmake.org/) on your path to build protobuf (see below
-  for building using solely CMake).
-- Run `vsprojects/build_protos.bat` (needs `cmake.exe` in your path).
-- Open [buildtests_cxx.sln]()
-- Select your build target.
-- build the `grpc++` project.
--->
 
-###msys2
+The Makefile (and source code) should support msys2's mingw32 and mingw64
+compilers. Building with msys2's native compiler is also possible, but
+difficult.
 
 This approach requires having [msys2](https://msys2.github.io/) installed.
   
-- The Makefile (and source code) should support msys2's mingw32 and mingw64
+```
-  compilers. Building with msys2's native compiler is also possible, but
+# Install prerequisites
-  difficult.
+MSYS2$ pacman -S autoconf automake gcc libtool mingw-w64-x86_64-toolchain perl pkg-config zlib
-- The Makefile is expecting the Windows versions of OpenSSL (see
+MSYS2$ pacman -S mingw-w64-x86_64-gflags
-  https://slproweb.com/products/Win32OpenSSL.html). It's also possible to build
+```
-  the Windows version of OpenSSL from scratch. The output should be `libeay32`
-  and `ssleay32`.
-- If you are not installing the above files under msys2's path, you may specify
-  it, for instance, in the following way:
-  ```CPPFLAGS=”-I/c/OpenSSL-Win32/include” LDFLAGS=”-L/c/OpenSSL-Win32/lib” make static_c```
-- [protobuf3](https://github.com/google/protobuf/blob/master/src/README.md#c-installation---windows)
-  must be installed on the msys2 path.
-
-###Cmake (experimental)
 
-- Install [CMake](https://cmake.org/download/).
+```
-- Run it over [grpc's
+# From mingw shell
-  CMakeLists.txt](https://github.com/grpc/grpc/blob/master/CMakeLists.txt) to
+MINGW64$ export CPPFLAGS="-D_WIN32_WINNT=0x0600"
-  generate "projects" for your compiler.
+MINGW64$ make
-- Build with your compiler of choice. The generated build files should have the
+```
-  protobuf3 dependency baked in.
+
+NOTE: While most of the make targets are buildable under Mingw, some haven't been ported to Windows yet
+and may fail to build (mostly trying to include POSIX headers not available on Mingw).

Makefile

@@ -1023,6 +1023,9 @@ lame_client_test: $(BINDIR)/$(CONFIG)/lame_client_test
 lb_policies_test: $(BINDIR)/$(CONFIG)/lb_policies_test
 load_file_test: $(BINDIR)/$(CONFIG)/load_file_test
 low_level_ping_pong_benchmark: $(BINDIR)/$(CONFIG)/low_level_ping_pong_benchmark
+memory_profile_client: $(BINDIR)/$(CONFIG)/memory_profile_client
+memory_profile_server: $(BINDIR)/$(CONFIG)/memory_profile_server
+memory_profile_test: $(BINDIR)/$(CONFIG)/memory_profile_test
 message_compress_test: $(BINDIR)/$(CONFIG)/message_compress_test
 mlog_test: $(BINDIR)/$(CONFIG)/mlog_test
 multiple_server_queues_test: $(BINDIR)/$(CONFIG)/multiple_server_queues_test
@@ -1096,6 +1099,7 @@ grpc_tool_test: $(BINDIR)/$(CONFIG)/grpc_tool_test
 grpclb_api_test: $(BINDIR)/$(CONFIG)/grpclb_api_test
 grpclb_test: $(BINDIR)/$(CONFIG)/grpclb_test
 health_service_end2end_test: $(BINDIR)/$(CONFIG)/health_service_end2end_test
+http2_client: $(BINDIR)/$(CONFIG)/http2_client
 hybrid_end2end_test: $(BINDIR)/$(CONFIG)/hybrid_end2end_test
 interop_client: $(BINDIR)/$(CONFIG)/interop_client
 interop_server: $(BINDIR)/$(CONFIG)/interop_server
@@ -1271,9 +1275,9 @@ pc_cxx: $(LIBDIR)/$(CONFIG)/pkgconfig/grpc++.pc
 pc_cxx_unsecure: $(LIBDIR)/$(CONFIG)/pkgconfig/grpc++_unsecure.pc
 
 ifeq ($(EMBED_OPENSSL),true)
-privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_proto_reflection_desc_db.a $(LIBDIR)/$(CONFIG)/libgrpc++_test.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_cli_libs.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libboringssl_test_util.a $(LIBDIR)/$(CONFIG)/libboringssl_aes_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_base64_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bio_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bn_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bytestring_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_aead_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cipher_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ed25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_dh_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_digest_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ec_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ecdsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_err_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_extra_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pbkdf_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_hmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs12_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs8_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_poly1305_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_rsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x509_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ssl_test_lib.a $(LIBDIR)/$(CONFIG)/libbenchmark.a
+privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_proto_reflection_desc_db.a $(LIBDIR)/$(CONFIG)/libgrpc++_test.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_cli_libs.a $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libboringssl_test_util.a $(LIBDIR)/$(CONFIG)/libboringssl_aes_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_base64_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bio_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bn_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bytestring_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_aead_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cipher_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ed25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_dh_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_digest_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ec_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ecdsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_err_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_extra_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pbkdf_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_hmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs12_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs8_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_poly1305_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_rsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x509_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ssl_test_lib.a $(LIBDIR)/$(CONFIG)/libbenchmark.a
 else
-privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_proto_reflection_desc_db.a $(LIBDIR)/$(CONFIG)/libgrpc++_test.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_cli_libs.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libbenchmark.a
+privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_proto_reflection_desc_db.a $(LIBDIR)/$(CONFIG)/libgrpc++_test.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_cli_libs.a $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libbenchmark.a
 endif
 
 
@@ -1359,6 +1363,9 @@ buildtests_c: privatelibs_c \
   $(BINDIR)/$(CONFIG)/lame_client_test \
   $(BINDIR)/$(CONFIG)/lb_policies_test \
   $(BINDIR)/$(CONFIG)/load_file_test \
+  $(BINDIR)/$(CONFIG)/memory_profile_client \
+  $(BINDIR)/$(CONFIG)/memory_profile_server \
+  $(BINDIR)/$(CONFIG)/memory_profile_test \
   $(BINDIR)/$(CONFIG)/message_compress_test \
   $(BINDIR)/$(CONFIG)/mlog_test \
   $(BINDIR)/$(CONFIG)/multiple_server_queues_test \
@@ -1479,6 +1486,7 @@ buildtests_cxx: privatelibs_cxx \
   $(BINDIR)/$(CONFIG)/grpclb_api_test \
   $(BINDIR)/$(CONFIG)/grpclb_test \
   $(BINDIR)/$(CONFIG)/health_service_end2end_test \
+  $(BINDIR)/$(CONFIG)/http2_client \
   $(BINDIR)/$(CONFIG)/hybrid_end2end_test \
   $(BINDIR)/$(CONFIG)/interop_client \
   $(BINDIR)/$(CONFIG)/interop_server \
@@ -1573,6 +1581,7 @@ buildtests_cxx: privatelibs_cxx \
   $(BINDIR)/$(CONFIG)/grpclb_api_test \
   $(BINDIR)/$(CONFIG)/grpclb_test \
   $(BINDIR)/$(CONFIG)/health_service_end2end_test \
+  $(BINDIR)/$(CONFIG)/http2_client \
   $(BINDIR)/$(CONFIG)/hybrid_end2end_test \
   $(BINDIR)/$(CONFIG)/interop_client \
   $(BINDIR)/$(CONFIG)/interop_server \
@@ -1752,6 +1761,8 @@ test_c: buildtests_c
 	$(Q) $(BINDIR)/$(CONFIG)/lame_client_test || ( echo test lame_client_test failed ; exit 1 )
 	$(E) "[RUN]     Testing load_file_test"
 	$(Q) $(BINDIR)/$(CONFIG)/load_file_test || ( echo test load_file_test failed ; exit 1 )
+	$(E) "[RUN]     Testing memory_profile_test"
+	$(Q) $(BINDIR)/$(CONFIG)/memory_profile_test || ( echo test memory_profile_test failed ; exit 1 )
 	$(E) "[RUN]     Testing message_compress_test"
 	$(Q) $(BINDIR)/$(CONFIG)/message_compress_test || ( echo test message_compress_test failed ; exit 1 )
 	$(E) "[RUN]     Testing multiple_server_queues_test"
@@ -2357,36 +2368,36 @@ install-static_cxx: static_cxx strip-static_cxx install-pkg-config_cxx
 install-shared_c: shared_c strip-shared_c install-pkg-config_c
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/$(SHARED_PREFIX)gpr$(SHARED_VERSION).$(SHARED_EXT_CORE)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/$(SHARED_PREFIX)gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE)
 ifeq ($(SYSTEM),MINGW32)
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgpr-imp.a $(prefix)/lib/libgpr-imp.a
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION_CORE)-dll.a $(prefix)/lib/libgpr.a
 else ifneq ($(SYSTEM),Darwin)
 	$(Q) ln -sf $(SHARED_PREFIX)gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/libgpr.so.2
 	$(Q) ln -sf $(SHARED_PREFIX)gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/libgpr.so
 endif
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/$(SHARED_PREFIX)grpc$(SHARED_VERSION).$(SHARED_EXT_CORE)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/$(SHARED_PREFIX)grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE)
 ifeq ($(SYSTEM),MINGW32)
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc-imp.a $(prefix)/lib/libgrpc-imp.a
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc$(SHARED_VERSION_CORE)-dll.a $(prefix)/lib/libgrpc.a
 else ifneq ($(SYSTEM),Darwin)
 	$(Q) ln -sf $(SHARED_PREFIX)grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/libgrpc.so.2
 	$(Q) ln -sf $(SHARED_PREFIX)grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/libgrpc.so
 endif
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/$(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION).$(SHARED_EXT_CORE)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/$(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE)
 ifeq ($(SYSTEM),MINGW32)
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_cronet-imp.a $(prefix)/lib/libgrpc_cronet-imp.a
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_cronet$(SHARED_VERSION_CORE)-dll.a $(prefix)/lib/libgrpc_cronet.a
 else ifneq ($(SYSTEM),Darwin)
 	$(Q) ln -sf $(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/libgrpc_cronet.so.2
 	$(Q) ln -sf $(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/libgrpc_cronet.so
 endif
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/$(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION).$(SHARED_EXT_CORE)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/$(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE)
 ifeq ($(SYSTEM),MINGW32)
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure-imp.a $(prefix)/lib/libgrpc_unsecure-imp.a
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure$(SHARED_VERSION_CORE)-dll.a $(prefix)/lib/libgrpc_unsecure.a
 else ifneq ($(SYSTEM),Darwin)
 	$(Q) ln -sf $(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/libgrpc_unsecure.so.2
 	$(Q) ln -sf $(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(prefix)/lib/libgrpc_unsecure.so
@@ -2401,36 +2412,36 @@ endif
 install-shared_cxx: shared_cxx strip-shared_cxx install-shared_c install-pkg-config_cxx
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/$(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT_CPP)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/$(SHARED_PREFIX)grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP)
 ifeq ($(SYSTEM),MINGW32)
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++-imp.a $(prefix)/lib/libgrpc++-imp.a
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP)-dll.a $(prefix)/lib/libgrpc++.a
 else ifneq ($(SYSTEM),Darwin)
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/libgrpc++.so.2
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/libgrpc++.so
 endif
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/$(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION).$(SHARED_EXT_CPP)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/$(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP)
 ifeq ($(SYSTEM),MINGW32)
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_cronet-imp.a $(prefix)/lib/libgrpc++_cronet-imp.a
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP)-dll.a $(prefix)/lib/libgrpc++_cronet.a
 else ifneq ($(SYSTEM),Darwin)
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/libgrpc++_cronet.so.2
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/libgrpc++_cronet.so
 endif
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/$(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION).$(SHARED_EXT_CPP)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/$(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP)
 ifeq ($(SYSTEM),MINGW32)
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_reflection-imp.a $(prefix)/lib/libgrpc++_reflection-imp.a
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP)-dll.a $(prefix)/lib/libgrpc++_reflection.a
 else ifneq ($(SYSTEM),Darwin)
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/libgrpc++_reflection.so.2
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/libgrpc++_reflection.so
 endif
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/$(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT_CPP)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/$(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP)
 ifeq ($(SYSTEM),MINGW32)
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure-imp.a $(prefix)/lib/libgrpc++_unsecure-imp.a
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP)-dll.a $(prefix)/lib/libgrpc++_unsecure.a
 else ifneq ($(SYSTEM),Darwin)
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/libgrpc++_unsecure.so.2
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(prefix)/lib/libgrpc++_unsecure.so
@@ -2445,9 +2456,9 @@ endif
 install-shared_csharp: shared_csharp strip-shared_csharp
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) $(prefix)/lib/$(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION).$(SHARED_EXT_CSHARP)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) $(prefix)/lib/$(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP)
 ifeq ($(SYSTEM),MINGW32)
-	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext-imp.a $(prefix)/lib/libgrpc_csharp_ext-imp.a
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext$(SHARED_VERSION_CSHARP)-dll.a $(prefix)/lib/libgrpc_csharp_ext.a
 else ifneq ($(SYSTEM),Darwin)
 	$(Q) ln -sf $(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) $(prefix)/lib/libgrpc_csharp_ext.so.2
 	$(Q) ln -sf $(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) $(prefix)/lib/libgrpc_csharp_ext.so
@@ -2578,6 +2589,7 @@ PUBLIC_HEADERS_C += \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
     include/grpc/impl/codegen/atm_windows.h \
+    include/grpc/impl/codegen/gpr_slice.h \
     include/grpc/impl/codegen/gpr_types.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -2610,11 +2622,11 @@ $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE): $(LIBGPR_OB
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
 ifeq ($(SYSTEM),Darwin)
-	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)gpr$(SHARED_VERSION).$(SHARED_EXT_CORE) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGPR_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS)
+	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGPR_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS)
 else
 	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgpr.so.2 -o $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGPR_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS)
-	$(Q) ln -sf $(SHARED_PREFIX)gpr$(SHARED_VERSION).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION_CORE).so.2
+	$(Q) ln -sf $(SHARED_PREFIX)gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION_CORE).so.2
-	$(Q) ln -sf $(SHARED_PREFIX)gpr$(SHARED_VERSION).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION_CORE).so
+	$(Q) ln -sf $(SHARED_PREFIX)gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgpr$(SHARED_VERSION_CORE).so
 endif
 endif
 
@@ -2823,11 +2835,14 @@ LIBGRPC_SRC = \
     src/core/ext/client_channel/connector.c \
     src/core/ext/client_channel/default_initial_connect_string.c \
     src/core/ext/client_channel/http_connect_handshaker.c \
+    src/core/ext/client_channel/http_proxy.c \
     src/core/ext/client_channel/initial_connect_string.c \
     src/core/ext/client_channel/lb_policy.c \
     src/core/ext/client_channel/lb_policy_factory.c \
     src/core/ext/client_channel/lb_policy_registry.c \
     src/core/ext/client_channel/parse_address.c \
+    src/core/ext/client_channel/proxy_mapper.c \
+    src/core/ext/client_channel/proxy_mapper_registry.c \
     src/core/ext/client_channel/resolver.c \
     src/core/ext/client_channel/resolver_factory.c \
     src/core/ext/client_channel/resolver_registry.c \
@@ -2888,6 +2903,7 @@ PUBLIC_HEADERS_C += \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
     include/grpc/impl/codegen/atm_windows.h \
+    include/grpc/impl/codegen/gpr_slice.h \
     include/grpc/impl/codegen/gpr_types.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -2933,11 +2949,11 @@ $(LIBDIR)/$(CONFIG)/libgrpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE): $(LIBGRPC_
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
 ifeq ($(SYSTEM),Darwin)
-	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc$(SHARED_VERSION).$(SHARED_EXT_CORE) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGRPC_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgpr.a $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS)
+	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGRPC_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgpr.a $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS)
 else
 	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgrpc.so.2 -o $(LIBDIR)/$(CONFIG)/libgrpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGRPC_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgpr.a $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS)
-	$(Q) ln -sf $(SHARED_PREFIX)grpc$(SHARED_VERSION).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc$(SHARED_VERSION_CORE).so.2
+	$(Q) ln -sf $(SHARED_PREFIX)grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc$(SHARED_VERSION_CORE).so.2
-	$(Q) ln -sf $(SHARED_PREFIX)grpc$(SHARED_VERSION).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc$(SHARED_VERSION_CORE).so
+	$(Q) ln -sf $(SHARED_PREFIX)grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc$(SHARED_VERSION_CORE).so
 endif
 endif
 
@@ -3099,11 +3115,14 @@ LIBGRPC_CRONET_SRC = \
     src/core/ext/client_channel/connector.c \
     src/core/ext/client_channel/default_initial_connect_string.c \
     src/core/ext/client_channel/http_connect_handshaker.c \
+    src/core/ext/client_channel/http_proxy.c \
     src/core/ext/client_channel/initial_connect_string.c \
     src/core/ext/client_channel/lb_policy.c \
     src/core/ext/client_channel/lb_policy_factory.c \
     src/core/ext/client_channel/lb_policy_registry.c \
     src/core/ext/client_channel/parse_address.c \
+    src/core/ext/client_channel/proxy_mapper.c \
+    src/core/ext/client_channel/proxy_mapper_registry.c \
     src/core/ext/client_channel/resolver.c \
     src/core/ext/client_channel/resolver_factory.c \
     src/core/ext/client_channel/resolver_registry.c \
@@ -3161,6 +3180,7 @@ PUBLIC_HEADERS_C += \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
     include/grpc/impl/codegen/atm_windows.h \
+    include/grpc/impl/codegen/gpr_slice.h \
     include/grpc/impl/codegen/gpr_types.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -3206,11 +3226,11 @@ $(LIBDIR)/$(CONFIG)/libgrpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE): $(L
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
 ifeq ($(SYSTEM),Darwin)
-	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION).$(SHARED_EXT_CORE) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGRPC_CRONET_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgpr.a $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS)
+	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGRPC_CRONET_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgpr.a $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS)
 else
 	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgrpc_cronet.so.2 -o $(LIBDIR)/$(CONFIG)/libgrpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGRPC_CRONET_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgpr.a $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS)
-	$(Q) ln -sf $(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_cronet$(SHARED_VERSION_CORE).so.2
+	$(Q) ln -sf $(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_cronet$(SHARED_VERSION_CORE).so.2
-	$(Q) ln -sf $(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_cronet$(SHARED_VERSION_CORE).so
+	$(Q) ln -sf $(SHARED_PREFIX)grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_cronet$(SHARED_VERSION_CORE).so
 endif
 endif
 
@@ -3380,6 +3400,7 @@ PUBLIC_HEADERS_C += \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
     include/grpc/impl/codegen/atm_windows.h \
+    include/grpc/impl/codegen/gpr_slice.h \
     include/grpc/impl/codegen/gpr_types.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -3613,11 +3634,14 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/ext/client_channel/connector.c \
     src/core/ext/client_channel/default_initial_connect_string.c \
     src/core/ext/client_channel/http_connect_handshaker.c \
+    src/core/ext/client_channel/http_proxy.c \
     src/core/ext/client_channel/initial_connect_string.c \
     src/core/ext/client_channel/lb_policy.c \
     src/core/ext/client_channel/lb_policy_factory.c \
     src/core/ext/client_channel/lb_policy_registry.c \
     src/core/ext/client_channel/parse_address.c \
+    src/core/ext/client_channel/proxy_mapper.c \
+    src/core/ext/client_channel/proxy_mapper_registry.c \
     src/core/ext/client_channel/resolver.c \
     src/core/ext/client_channel/resolver_factory.c \
     src/core/ext/client_channel/resolver_registry.c \
@@ -3673,6 +3697,7 @@ PUBLIC_HEADERS_C += \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
     include/grpc/impl/codegen/atm_windows.h \
+    include/grpc/impl/codegen/gpr_slice.h \
     include/grpc/impl/codegen/gpr_types.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -3706,11 +3731,11 @@ $(LIBDIR)/$(CONFIG)/libgrpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE): $
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
 ifeq ($(SYSTEM),Darwin)
-	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION).$(SHARED_EXT_CORE) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGRPC_UNSECURE_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgpr.a $(ZLIB_MERGE_LIBS)
+	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGRPC_UNSECURE_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgpr.a $(ZLIB_MERGE_LIBS)
 else
 	$(Q) $(LD) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgrpc_unsecure.so.2 -o $(LIBDIR)/$(CONFIG)/libgrpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBGRPC_UNSECURE_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgpr.a $(ZLIB_MERGE_LIBS)
-	$(Q) ln -sf $(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure$(SHARED_VERSION_CORE).so.2
+	$(Q) ln -sf $(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure$(SHARED_VERSION_CORE).so.2
-	$(Q) ln -sf $(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure$(SHARED_VERSION_CORE).so
+	$(Q) ln -sf $(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure$(SHARED_VERSION_CORE).so
 endif
 endif
 
@@ -3924,6 +3949,7 @@ PUBLIC_HEADERS_CXX += \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
     include/grpc/impl/codegen/atm_windows.h \
+    include/grpc/impl/codegen/gpr_slice.h \
     include/grpc/impl/codegen/gpr_types.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -3967,20 +3993,20 @@ endif
 
 
 ifeq ($(SYSTEM),MINGW32)
-$(LIBDIR)/$(CONFIG)/grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/grpc.$(SHARED_EXT_CORE) $(OPENSSL_DEP)
+$(LIBDIR)/$(CONFIG)/grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/grpc$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(OPENSSL_DEP)
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,--output-def=$(LIBDIR)/$(CONFIG)/grpc++$(SHARED_VERSION_CPP).def -Wl,--out-implib=$(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP)-dll.a -o $(LIBDIR)/$(CONFIG)/grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc-imp
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,--output-def=$(LIBDIR)/$(CONFIG)/grpc++$(SHARED_VERSION_CPP).def -Wl,--out-implib=$(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP)-dll.a -o $(LIBDIR)/$(CONFIG)/grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc$(SHARED_VERSION_CORE)-dll
 else
 $(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/libgrpc.$(SHARED_EXT_CORE) $(OPENSSL_DEP)
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
 ifeq ($(SYSTEM),Darwin)
-	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT_CPP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc
 else
 	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgrpc++.so.2 -o $(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc
-	$(Q) ln -sf $(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP).so.1
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP).so.1
-	$(Q) ln -sf $(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP).so
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++$(SHARED_VERSION_CPP).so
 endif
 endif
 
@@ -4179,11 +4205,14 @@ LIBGRPC++_CRONET_SRC = \
     src/core/ext/client_channel/connector.c \
     src/core/ext/client_channel/default_initial_connect_string.c \
     src/core/ext/client_channel/http_connect_handshaker.c \
+    src/core/ext/client_channel/http_proxy.c \
     src/core/ext/client_channel/initial_connect_string.c \
     src/core/ext/client_channel/lb_policy.c \
     src/core/ext/client_channel/lb_policy_factory.c \
     src/core/ext/client_channel/lb_policy_registry.c \
     src/core/ext/client_channel/parse_address.c \
+    src/core/ext/client_channel/proxy_mapper.c \
+    src/core/ext/client_channel/proxy_mapper_registry.c \
     src/core/ext/client_channel/resolver.c \
     src/core/ext/client_channel/resolver_factory.c \
     src/core/ext/client_channel/resolver_registry.c \
@@ -4295,6 +4324,7 @@ PUBLIC_HEADERS_CXX += \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
     include/grpc/impl/codegen/atm_windows.h \
+    include/grpc/impl/codegen/gpr_slice.h \
     include/grpc/impl/codegen/gpr_types.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -4348,20 +4378,20 @@ endif
 
 
 ifeq ($(SYSTEM),MINGW32)
-$(LIBDIR)/$(CONFIG)/grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_CRONET_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/gpr.$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/grpc_cronet.$(SHARED_EXT_CORE) $(OPENSSL_DEP)
+$(LIBDIR)/$(CONFIG)/grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_CRONET_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/grpc_cronet$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(OPENSSL_DEP)
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,--output-def=$(LIBDIR)/$(CONFIG)/grpc++_cronet$(SHARED_VERSION_CPP).def -Wl,--out-implib=$(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP)-dll.a -o $(LIBDIR)/$(CONFIG)/grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_CRONET_OBJS) $(LDLIBS) $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr-imp -lgrpc_cronet-imp
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,--output-def=$(LIBDIR)/$(CONFIG)/grpc++_cronet$(SHARED_VERSION_CPP).def -Wl,--out-implib=$(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP)-dll.a -o $(LIBDIR)/$(CONFIG)/grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_CRONET_OBJS) $(LDLIBS) $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr$(SHARED_VERSION_CORE)-dll -lgrpc_cronet$(SHARED_VERSION_CORE)-dll
 else
 $(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_CRONET_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/libgpr.$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_cronet.$(SHARED_EXT_CORE) $(OPENSSL_DEP)
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
 ifeq ($(SYSTEM),Darwin)
-	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION).$(SHARED_EXT_CPP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_CRONET_OBJS) $(LDLIBS) $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr -lgrpc_cronet
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_CRONET_OBJS) $(LDLIBS) $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr -lgrpc_cronet
 else
 	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgrpc++_cronet.so.2 -o $(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_CRONET_OBJS) $(LDLIBS) $(OPENSSL_MERGE_LIBS) $(LDLIBS_SECURE) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr -lgrpc_cronet
-	$(Q) ln -sf $(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP).so.1
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP).so.1
-	$(Q) ln -sf $(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP).so
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_cronet$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_cronet$(SHARED_VERSION_CPP).so
 endif
 endif
 
@@ -4471,20 +4501,20 @@ endif
 
 
 ifeq ($(SYSTEM),MINGW32)
-$(LIBDIR)/$(CONFIG)/grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_REFLECTION_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/grpc++.$(SHARED_EXT_CPP) $(OPENSSL_DEP)
+$(LIBDIR)/$(CONFIG)/grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_REFLECTION_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/grpc++$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(OPENSSL_DEP)
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,--output-def=$(LIBDIR)/$(CONFIG)/grpc++_reflection$(SHARED_VERSION_CPP).def -Wl,--out-implib=$(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP)-dll.a -o $(LIBDIR)/$(CONFIG)/grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_REFLECTION_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc++-imp
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,--output-def=$(LIBDIR)/$(CONFIG)/grpc++_reflection$(SHARED_VERSION_CPP).def -Wl,--out-implib=$(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP)-dll.a -o $(LIBDIR)/$(CONFIG)/grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_REFLECTION_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc++$(SHARED_VERSION_CPP)-dll
 else
 $(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_REFLECTION_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/libgrpc++.$(SHARED_EXT_CPP) $(OPENSSL_DEP)
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
 ifeq ($(SYSTEM),Darwin)
-	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION).$(SHARED_EXT_CPP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_REFLECTION_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc++
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_REFLECTION_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc++
 else
 	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgrpc++_reflection.so.2 -o $(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_REFLECTION_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgrpc++
-	$(Q) ln -sf $(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP).so.1
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP).so.1
-	$(Q) ln -sf $(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP).so
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_reflection$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_reflection$(SHARED_VERSION_CPP).so
 endif
 endif
 
@@ -4652,6 +4682,7 @@ PUBLIC_HEADERS_CXX += \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
     include/grpc/impl/codegen/atm_windows.h \
+    include/grpc/impl/codegen/gpr_slice.h \
     include/grpc/impl/codegen/gpr_types.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -4837,6 +4868,7 @@ PUBLIC_HEADERS_CXX += \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
     include/grpc/impl/codegen/atm_windows.h \
+    include/grpc/impl/codegen/gpr_slice.h \
     include/grpc/impl/codegen/gpr_types.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -4870,20 +4902,20 @@ endif
 
 
 ifeq ($(SYSTEM),MINGW32)
-$(LIBDIR)/$(CONFIG)/grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_UNSECURE_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/gpr.$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/grpc_unsecure.$(SHARED_EXT_CORE)
+$(LIBDIR)/$(CONFIG)/grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_UNSECURE_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/gpr$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/grpc_unsecure$(SHARED_VERSION_CORE).$(SHARED_EXT_CORE)
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,--output-def=$(LIBDIR)/$(CONFIG)/grpc++_unsecure$(SHARED_VERSION_CPP).def -Wl,--out-implib=$(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP)-dll.a -o $(LIBDIR)/$(CONFIG)/grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_UNSECURE_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr-imp -lgrpc_unsecure-imp
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,--output-def=$(LIBDIR)/$(CONFIG)/grpc++_unsecure$(SHARED_VERSION_CPP).def -Wl,--out-implib=$(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP)-dll.a -o $(LIBDIR)/$(CONFIG)/grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_UNSECURE_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr$(SHARED_VERSION_CORE)-dll -lgrpc_unsecure$(SHARED_VERSION_CORE)-dll
 else
 $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP): $(LIBGRPC++_UNSECURE_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP) $(LIBDIR)/$(CONFIG)/libgpr.$(SHARED_EXT_CORE) $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.$(SHARED_EXT_CORE)
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
 ifeq ($(SYSTEM),Darwin)
-	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT_CPP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_UNSECURE_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr -lgrpc_unsecure
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_UNSECURE_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr -lgrpc_unsecure
 else
 	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgrpc++_unsecure.so.2 -o $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBGRPC++_UNSECURE_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF) -lgpr -lgrpc_unsecure
-	$(Q) ln -sf $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP).so.1
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP).so.1
-	$(Q) ln -sf $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP).so
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION_CPP).$(SHARED_EXT_CPP) $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure$(SHARED_VERSION_CPP).so
 endif
 endif
 
@@ -4997,6 +5029,59 @@ ifneq ($(NO_DEPS),true)
 endif
 
 
+LIBHTTP2_CLIENT_MAIN_SRC = \
+    $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc \
+    $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc \
+    $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc \
+    test/cpp/interop/http2_client.cc \
+
+PUBLIC_HEADERS_CXX += \
+
+LIBHTTP2_CLIENT_MAIN_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBHTTP2_CLIENT_MAIN_SRC))))
+
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure libraries if you don't have OpenSSL.
+
+$(LIBDIR)/$(CONFIG)/libhttp2_client_main.a: openssl_dep_error
+
+
+else
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build a C++ library if you don't have protobuf - a bit overreached, but still okay.
+
+$(LIBDIR)/$(CONFIG)/libhttp2_client_main.a: protobuf_dep_error
+
+
+else
+
+$(LIBDIR)/$(CONFIG)/libhttp2_client_main.a: $(ZLIB_DEP) $(OPENSSL_DEP) $(PROTOBUF_DEP) $(LIBHTTP2_CLIENT_MAIN_OBJS) 
+	$(E) "[AR]      Creating $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a
+	$(Q) $(AR) $(AROPTS) $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBHTTP2_CLIENT_MAIN_OBJS) 
+ifeq ($(SYSTEM),Darwin)
+	$(Q) ranlib -no_warning_for_no_symbols $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a
+endif
+
+
+
+
+endif
+
+endif
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(LIBHTTP2_CLIENT_MAIN_OBJS:.o=.dep)
+endif
+endif
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/http2_client.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
+
+
 LIBINTEROP_CLIENT_HELPER_SRC = \
     $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc \
     test/cpp/interop/client_helper.cc \
@@ -5263,7 +5348,6 @@ LIBQPS_SRC = \
     test/cpp/qps/client_async.cc \
     test/cpp/qps/client_sync.cc \
     test/cpp/qps/driver.cc \
-    test/cpp/qps/limit_cores.cc \
     test/cpp/qps/parse_json.cc \
     test/cpp/qps/qps_worker.cc \
     test/cpp/qps/report.cc \
@@ -5319,7 +5403,6 @@ endif
 $(OBJDIR)/$(CONFIG)/test/cpp/qps/client_async.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc
 $(OBJDIR)/$(CONFIG)/test/cpp/qps/client_sync.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc
 $(OBJDIR)/$(CONFIG)/test/cpp/qps/driver.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/limit_cores.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc
 $(OBJDIR)/$(CONFIG)/test/cpp/qps/parse_json.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc
 $(OBJDIR)/$(CONFIG)/test/cpp/qps/qps_worker.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc
 $(OBJDIR)/$(CONFIG)/test/cpp/qps/report.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc
@@ -5369,11 +5452,11 @@ $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHA
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
 ifeq ($(SYSTEM),Darwin)
-	$(Q) $(LD) $(LDFLAGS) $(if $(subst Linux,,$(SYSTEM)),,-Wl$(comma)-wrap$(comma)memcpy) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION).$(SHARED_EXT_CSHARP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) $(LIBGRPC_CSHARP_EXT_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr.a $(ZLIB_MERGE_LIBS)
+	$(Q) $(LD) $(LDFLAGS) $(if $(subst Linux,,$(SYSTEM)),,-Wl$(comma)-wrap$(comma)memcpy) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) $(LIBGRPC_CSHARP_EXT_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr.a $(ZLIB_MERGE_LIBS)
 else
 	$(Q) $(LD) $(LDFLAGS) $(if $(subst Linux,,$(SYSTEM)),,-Wl$(comma)-wrap$(comma)memcpy) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgrpc_csharp_ext.so.2 -o $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) $(LIBGRPC_CSHARP_EXT_OBJS) $(LDLIBS) $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr.a $(ZLIB_MERGE_LIBS)
-	$(Q) ln -sf $(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION).$(SHARED_EXT_CSHARP) $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext$(SHARED_VERSION_CSHARP).so.1
+	$(Q) ln -sf $(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext$(SHARED_VERSION_CSHARP).so.1
-	$(Q) ln -sf $(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION).$(SHARED_EXT_CSHARP) $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext$(SHARED_VERSION_CSHARP).so
+	$(Q) ln -sf $(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION_CSHARP).$(SHARED_EXT_CSHARP) $(LIBDIR)/$(CONFIG)/libgrpc_csharp_ext$(SHARED_VERSION_CSHARP).so
 endif
 endif
 
@@ -7278,6 +7361,8 @@ LIBEND2END_TESTS_SRC = \
     test/core/end2end/tests/simple_request.c \
     test/core/end2end/tests/streaming_error_response.c \
     test/core/end2end/tests/trailing_metadata.c \
+    test/core/end2end/tests/write_buffering.c \
+    test/core/end2end/tests/write_buffering_at_end.c \
 
 PUBLIC_HEADERS_C += \
 
@@ -7364,6 +7449,8 @@ LIBEND2END_NOSEC_TESTS_SRC = \
     test/core/end2end/tests/simple_request.c \
     test/core/end2end/tests/streaming_error_response.c \
     test/core/end2end/tests/trailing_metadata.c \
+    test/core/end2end/tests/write_buffering.c \
+    test/core/end2end/tests/write_buffering_at_end.c \
 
 PUBLIC_HEADERS_C += \
 
@@ -10335,6 +10422,102 @@ endif
 endif
 
 
+MEMORY_PROFILE_CLIENT_SRC = \
+    test/core/memory_usage/client.c \
+
+MEMORY_PROFILE_CLIENT_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(MEMORY_PROFILE_CLIENT_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/memory_profile_client: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/memory_profile_client: $(MEMORY_PROFILE_CLIENT_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(MEMORY_PROFILE_CLIENT_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/memory_profile_client
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/memory_usage/client.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_memory_profile_client: $(MEMORY_PROFILE_CLIENT_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(MEMORY_PROFILE_CLIENT_OBJS:.o=.dep)
+endif
+endif
+
+
+MEMORY_PROFILE_SERVER_SRC = \
+    test/core/memory_usage/server.c \
+
+MEMORY_PROFILE_SERVER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(MEMORY_PROFILE_SERVER_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/memory_profile_server: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/memory_profile_server: $(MEMORY_PROFILE_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(MEMORY_PROFILE_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/memory_profile_server
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/memory_usage/server.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_memory_profile_server: $(MEMORY_PROFILE_SERVER_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(MEMORY_PROFILE_SERVER_OBJS:.o=.dep)
+endif
+endif
+
+
+MEMORY_PROFILE_TEST_SRC = \
+    test/core/memory_usage/memory_usage_test.c \
+
+MEMORY_PROFILE_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(MEMORY_PROFILE_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/memory_profile_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/memory_profile_test: $(MEMORY_PROFILE_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(MEMORY_PROFILE_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/memory_profile_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/memory_usage/memory_usage_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_memory_profile_test: $(MEMORY_PROFILE_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(MEMORY_PROFILE_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 MESSAGE_COMPRESS_TEST_SRC = \
     test/core/compression/message_compress_test.c \
 
@@ -12928,18 +13111,18 @@ $(BINDIR)/$(CONFIG)/grpclb_test: protobuf_dep_error
 
 else
 
-$(BINDIR)/$(CONFIG)/grpclb_test: $(PROTOBUF_DEP) $(GRPCLB_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a
+$(BINDIR)/$(CONFIG)/grpclb_test: $(PROTOBUF_DEP) $(GRPCLB_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 	$(E) "[LD]      Linking $@"
 	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LDXX) $(LDFLAGS) $(GRPCLB_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) $(GTEST_LIB) -o $(BINDIR)/$(CONFIG)/grpclb_test
+	$(Q) $(LDXX) $(LDFLAGS) $(GRPCLB_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) $(GTEST_LIB) -o $(BINDIR)/$(CONFIG)/grpclb_test
 
 endif
 
 endif
 
-$(OBJDIR)/$(CONFIG)/src/proto/grpc/lb/v1/load_balancer.o:  $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a
+$(OBJDIR)/$(CONFIG)/src/proto/grpc/lb/v1/load_balancer.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
-$(OBJDIR)/$(CONFIG)/test/cpp/grpclb/grpclb_test.o:  $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a
+$(OBJDIR)/$(CONFIG)/test/cpp/grpclb/grpclb_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 deps_grpclb_test: $(GRPCLB_TEST_OBJS:.o=.dep)
 
@@ -12994,6 +13177,37 @@ endif
 endif
 
 
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/http2_client: openssl_dep_error
+
+else
+
+
+
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build the protoc plugins or protobuf-enabled targets if you don't have protobuf 3.0.0+.
+
+$(BINDIR)/$(CONFIG)/http2_client: protobuf_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/http2_client:  $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LDXX) $(LDFLAGS)  $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) $(GTEST_LIB) -o $(BINDIR)/$(CONFIG)/http2_client
+
+endif
+
+endif
+
+
+
+
 HYBRID_END2END_TEST_SRC = \
     test/cpp/end2end/hybrid_end2end_test.cc \
 
@@ -14074,10 +14288,10 @@ STRESS_TEST_SRC = \
     $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc \
     $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.grpc.pb.cc \
     $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc \
-    test/cpp/interop/client_helper.cc \
     test/cpp/interop/interop_client.cc \
     test/cpp/interop/stress_interop_client.cc \
     test/cpp/interop/stress_test.cc \
+    test/cpp/util/create_test_channel.cc \
     test/cpp/util/metrics_server.cc \
 
 STRESS_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(STRESS_TEST_SRC))))
@@ -14117,14 +14331,14 @@ $(OBJDIR)/$(CONFIG)/src/proto/grpc/testing/metrics.o:  $(LIBDIR)/$(CONFIG)/libgr
 
 $(OBJDIR)/$(CONFIG)/src/proto/grpc/testing/test.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a
 
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/client_helper.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a
-
 $(OBJDIR)/$(CONFIG)/test/cpp/interop/interop_client.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a
 
 $(OBJDIR)/$(CONFIG)/test/cpp/interop/stress_interop_client.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a
 
 $(OBJDIR)/$(CONFIG)/test/cpp/interop/stress_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a
 
+$(OBJDIR)/$(CONFIG)/test/cpp/util/create_test_channel.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a
+
 $(OBJDIR)/$(CONFIG)/test/cpp/util/metrics_server.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a
 
 deps_stress_test: $(STRESS_TEST_OBJS:.o=.dep)
@@ -14134,10 +14348,10 @@ ifneq ($(NO_DEPS),true)
 -include $(STRESS_TEST_OBJS:.o=.dep)
 endif
 endif
-$(OBJDIR)/$(CONFIG)/test/cpp/interop/client_helper.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
 $(OBJDIR)/$(CONFIG)/test/cpp/interop/interop_client.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
 $(OBJDIR)/$(CONFIG)/test/cpp/interop/stress_interop_client.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
 $(OBJDIR)/$(CONFIG)/test/cpp/interop/stress_test.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/util/create_test_channel.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
 $(OBJDIR)/$(CONFIG)/test/cpp/util/metrics_server.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.pb.cc $(GENDIR)/src/proto/grpc/testing/metrics.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
 
 
@@ -16911,6 +17125,7 @@ test/core/util/test_tcp_server.c: $(OPENSSL_DEP)
 test/cpp/end2end/test_service_impl.cc: $(OPENSSL_DEP)
 test/cpp/interop/client.cc: $(OPENSSL_DEP)
 test/cpp/interop/client_helper.cc: $(OPENSSL_DEP)
+test/cpp/interop/http2_client.cc: $(OPENSSL_DEP)
 test/cpp/interop/interop_client.cc: $(OPENSSL_DEP)
 test/cpp/interop/interop_server.cc: $(OPENSSL_DEP)
 test/cpp/interop/interop_server_bootstrap.cc: $(OPENSSL_DEP)
@@ -16918,7 +17133,6 @@ test/cpp/interop/server_helper.cc: $(OPENSSL_DEP)
 test/cpp/qps/client_async.cc: $(OPENSSL_DEP)
 test/cpp/qps/client_sync.cc: $(OPENSSL_DEP)
 test/cpp/qps/driver.cc: $(OPENSSL_DEP)
-test/cpp/qps/limit_cores.cc: $(OPENSSL_DEP)
 test/cpp/qps/parse_json.cc: $(OPENSSL_DEP)
 test/cpp/qps/qps_worker.cc: $(OPENSSL_DEP)
 test/cpp/qps/report.cc: $(OPENSSL_DEP)

README.md

@@ -17,6 +17,8 @@ See [INSTALL](INSTALL.md) for installation instructions for various platforms.
 
 See [tools/run_tests](tools/run_tests) for more guidance on how to run various test suites (e.g. unit tests, interop tests, benchmarks)
 
+See [Performance dashboard](http://performance-dot-grpc-testing.appspot.com/explore?dashboard=5712453606309888) for the performance numbers for v1.0.x.
+
 #Repository Structure & Status
 
 This repository contains source code for gRPC libraries for multiple languages written on top of shared C core library [src/core] (src/core).

Rakefile

@@ -5,6 +5,8 @@ require 'rubocop/rake_task'
 require 'bundler/gem_tasks'
 require 'fileutils'
 
+require_relative 'build_config.rb'
+
 load 'tools/distrib/docker_for_windows.rb'
 
 # Add rubocop style checking tasks
@@ -83,7 +85,7 @@ task 'dlls' do
   env += 'EMBED_ZLIB=true '
   env += 'BUILDDIR=/tmp '
   env += "V=#{verbose} "
-  out = '/tmp/libs/opt/grpc-1.dll'
+  out = GrpcBuildConfig::CORE_WINDOWS_DLL
 
   w64 = { cross: 'x86_64-w64-mingw32', out: 'grpc_c.64.ruby' }
   w32 = { cross: 'i686-w64-mingw32', out: 'grpc_c.32.ruby' }

bazel/BUILD

@@ -1,9 +1,46 @@
+# Copyright 2017, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+licenses(["notice"])  # 3-clause BSD
+
 package(default_visibility = ["//:__subpackages__"])
 
 load(":cc_grpc_library.bzl", "cc_grpc_library")
 
+proto_library(
+    name = "well_known_protos_list",
+    srcs = ["@submodule_protobuf//:well_known_protos"],
+)
+
 cc_grpc_library(
     name = "well_known_protos",
-    srcs = "@submodule_protobuf//:well_known_protos",
+    srcs = "well_known_protos_list",
+    deps = [],
     proto_only = True,
 )

bazel/cc_grpc_library.bzl

@@ -44,7 +44,6 @@ def cc_grpc_library(name, srcs, deps, proto_only, **kwargs):
         **kwargs
     )
 
-  if not proto_only:
     native.cc_library(
         name = name,
         srcs = [":" + codegen_grpc_target, ":" + codegen_target],

bazel/generate_cc.bzl

@@ -24,13 +24,15 @@ def generate_cc_impl(ctx):
   if ctx.executable.plugin:
     arguments += ["--plugin=protoc-gen-PLUGIN=" + ctx.executable.plugin.path]
     arguments += ["--PLUGIN_out=" + ",".join(ctx.attr.flags) + ":" + dir_out]
+    additional_input = [ctx.executable.plugin]
   else:
     arguments += ["--cpp_out=" + ",".join(ctx.attr.flags) + ":" + dir_out]
+    additional_input = []
   arguments += ["-I{0}={0}".format(include.path) for include in includes]
   arguments += [proto.path for proto in protos]
 
   ctx.action(
-      inputs = protos + includes,
+      inputs = protos + includes + additional_input,
       outputs = out_files,
       executable = ctx.executable._protoc,
       arguments = arguments,

binding.gyp

@@ -37,18 +37,68 @@
 # Some of this file is built with the help of
 # https://n8.io/converting-a-c-library-to-gyp/
 {
+  'variables': {
+    'runtime%': 'node'
+  },
   'target_defaults': {
     'include_dirs': [
       '.',
       'include'
     ],
+    'defines': [
+      'GPR_BACKWARDS_COMPATIBILITY_MODE'
+    ],
+    'conditions': [
+      ['runtime=="node"', {
         'defines': [
           'GRPC_UV'
+        ]
+      }],
+      ['OS!="win" and runtime=="electron"', {
+        "defines": [
+          'OPENSSL_NO_THREADS'
+        ]
+      }],
+      # This is the condition for using boringssl
+      ['OS=="win" or runtime=="electron"', {
+        "include_dirs": [
+          "third_party/boringssl/include"
+        ],
+        "defines": [
+          'OPENSSL_NO_ASM'
+        ]
+      }, {
+        # Based on logic above, we know that this must be a non-Windows system
+        'variables': {
+          # The output of "node --version" is "v[version]". We use cut to
+          # remove the first character.
+          'target%': '<!(node --version | cut -c2-)'
+        },
+        # Empirically, Node only exports ALPN symbols if its major version is >0.
+        # io.js always reports versions >0 and always exports ALPN symbols.
+        # Therefore, Node's major version will be truthy if and only if it
+        # supports ALPN. The target is "[major].[minor].[patch]". We split by
+        # periods and take the first field to get the major version.
+        'defines': [
+          'TSI_OPENSSL_ALPN_SUPPORT=<!(echo <(target) | cut -d. -f1)'
+        ],
+        'include_dirs': [
+          '<(node_root_dir)/deps/openssl/openssl/include',
         ],
         'conditions': [
+         ["target_arch=='ia32'", {
+             "include_dirs": [ "<(node_root_dir)/deps/openssl/config/piii" ]
+         }],
+         ["target_arch=='x64'", {
+             "include_dirs": [ "<(node_root_dir)/deps/openssl/config/k8" ]
+         }],
+         ["target_arch=='arm'", {
+             "include_dirs": [ "<(node_root_dir)/deps/openssl/config/arm" ]
+         }]
+        ]
+      }],
       ['OS == "win"', {
         "include_dirs": [
-          "third_party/boringssl/include",
           "third_party/zlib"
         ],
         "defines": [
@@ -58,8 +108,6 @@
           'UNICODE',
           '_UNICODE',
           'NOMINMAX',
-          'OPENSSL_NO_ASM',
-          'GPR_BACKWARDS_COMPATIBILITY_MODE'
         ],
         "msvs_settings": {
           'VCCLCompilerTool': {
@@ -72,21 +120,8 @@
       }, { # OS != "win"
         'variables': {
           'config': '<!(echo $CONFIG)',
-          # The output of "node --version" is "v[version]". We use cut to
-          # remove the first character.
-          'target%': '<!(node --version | cut -c2-)'
         },
-          # Empirically, Node only exports ALPN symbols if its major version is >0.
-          # io.js always reports versions >0 and always exports ALPN symbols.
-          # Therefore, Node's major version will be truthy if and only if it
-          # supports ALPN. The target is "[major].[minor].[patch]". We split by
-          # periods and take the first field to get the major version.
-        'defines': [
-          'TSI_OPENSSL_ALPN_SUPPORT=<!(echo <(target) | cut -d. -f1)',
-          'GPR_BACKWARDS_COMPATIBILITY_MODE'
-        ],
         'include_dirs': [
-          '<(node_root_dir)/deps/openssl/openssl/include',
           '<(node_root_dir)/deps/zlib'
         ],
         'conditions': [
@@ -101,47 +136,14 @@
               '-fprofile-arcs'
             ]
           }
-         ],
+         ]
-         ["target_arch=='ia32'", {
-             "include_dirs": [ "<(node_root_dir)/deps/openssl/config/piii" ]
-         }],
-         ["target_arch=='x64'", {
-             "include_dirs": [ "<(node_root_dir)/deps/openssl/config/k8" ]
-         }],
-         ["target_arch=='arm'", {
-             "include_dirs": [ "<(node_root_dir)/deps/openssl/config/arm" ]
-         }]
         ]
       }]
     ]
   },
   'conditions': [
-    ['OS == "win"', {
+    ['OS=="win" or runtime=="electron"', {
       'targets': [
-        {
-          # IMPORTANT WINDOWS BUILD INFORMATION
-          # This library does not build on Windows without modifying the Node
-          # development packages that node-gyp downloads in order to build.
-          # Due to https://github.com/nodejs/node/issues/4932, the headers for
-          # BoringSSL conflict with the OpenSSL headers included by default
-          # when including the Node headers. The remedy for this is to remove
-          # the OpenSSL headers, from the downloaded Node development package,
-          # which is typically located in `.node-gyp` in your home directory.
-          'target_name': 'WINDOWS_BUILD_WARNING',
-          'actions': [
-            {
-              'action_name': 'WINDOWS_BUILD_WARNING',
-              'inputs': [
-                'package.json'
-              ],
-              'outputs': [
-                'ignore_this_part'
-              ],
-              'action': ['echo', 'IMPORTANT: Due to https://github.com/nodejs/node/issues/4932, to build this library on Windows, you must first remove <(node_root_dir)/include/node/openssl/']
-            }
-          ]
-        },
-        # Only want to compile BoringSSL and zlib under Windows
         {
           'cflags': [
             '-std=c99',
@@ -453,6 +455,34 @@
             'third_party/boringssl/ssl/tls_record.c',
           ]
         },
+      ]
+    }],
+    ['OS == "win"', {
+      'targets': [
+        {
+          # IMPORTANT WINDOWS BUILD INFORMATION
+          # This library does not build on Windows without modifying the Node
+          # development packages that node-gyp downloads in order to build.
+          # Due to https://github.com/nodejs/node/issues/4932, the headers for
+          # BoringSSL conflict with the OpenSSL headers included by default
+          # when including the Node headers. The remedy for this is to remove
+          # the OpenSSL headers, from the downloaded Node development package,
+          # which is typically located in `.node-gyp` in your home directory.
+          'target_name': 'WINDOWS_BUILD_WARNING',
+          'actions': [
+            {
+              'action_name': 'WINDOWS_BUILD_WARNING',
+              'inputs': [
+                'package.json'
+              ],
+              'outputs': [
+                'ignore_this_part'
+              ],
+              'action': ['echo', 'IMPORTANT: Due to https://github.com/nodejs/node/issues/4932, to build this library on Windows, you must first remove <(node_root_dir)/include/node/openssl/']
+            }
+          ]
+        },
+        # Only want to compile zlib under Windows
         {
           'cflags': [
             '-std=c99',
@@ -738,11 +768,14 @@
         'src/core/ext/client_channel/connector.c',
         'src/core/ext/client_channel/default_initial_connect_string.c',
         'src/core/ext/client_channel/http_connect_handshaker.c',
+        'src/core/ext/client_channel/http_proxy.c',
         'src/core/ext/client_channel/initial_connect_string.c',
         'src/core/ext/client_channel/lb_policy.c',
         'src/core/ext/client_channel/lb_policy_factory.c',
         'src/core/ext/client_channel/lb_policy_registry.c',
         'src/core/ext/client_channel/parse_address.c',
+        'src/core/ext/client_channel/proxy_mapper.c',
+        'src/core/ext/client_channel/proxy_mapper_registry.c',
         'src/core/ext/client_channel/resolver.c',
         'src/core/ext/client_channel/resolver_factory.c',
         'src/core/ext/client_channel/resolver_registry.c',
@@ -807,6 +840,11 @@
         '-g'
       ],
       "conditions": [
+        ['OS=="win" or runtime=="electron"', {
+          'dependencies': [
+            "boringssl",
+          ]
+        }],
         ['OS=="mac"', {
           'xcode_settings': {
             'MACOSX_DEPLOYMENT_TARGET': '10.9',
@@ -818,7 +856,6 @@
         }],
         ['OS=="win"', {
           'dependencies': [
-            "boringssl",
             "z",
           ]
         }],
@@ -835,8 +872,8 @@
         "src/node/ext/call_credentials.cc",
         "src/node/ext/channel.cc",
         "src/node/ext/channel_credentials.cc",
-        "src/node/ext/completion_queue.cc",
+        "src/node/ext/completion_queue_threadpool.cc",
-        "src/node/ext/completion_queue_async_worker.cc",
+        "src/node/ext/completion_queue_uv.cc",
         "src/node/ext/node_grpc.cc",
         "src/node/ext/server.cc",
         "src/node/ext/server_credentials.cc",

build.yaml

@@ -144,6 +144,7 @@ filegroups:
   - include/grpc/impl/codegen/atm_gcc_atomic.h
   - include/grpc/impl/codegen/atm_gcc_sync.h
   - include/grpc/impl/codegen/atm_windows.h
+  - include/grpc/impl/codegen/gpr_slice.h
   - include/grpc/impl/codegen/gpr_types.h
   - include/grpc/impl/codegen/port_platform.h
   - include/grpc/impl/codegen/slice.h
@@ -388,11 +389,14 @@ filegroups:
   - src/core/ext/client_channel/client_channel_factory.h
   - src/core/ext/client_channel/connector.h
   - src/core/ext/client_channel/http_connect_handshaker.h
+  - src/core/ext/client_channel/http_proxy.h
   - src/core/ext/client_channel/initial_connect_string.h
   - src/core/ext/client_channel/lb_policy.h
   - src/core/ext/client_channel/lb_policy_factory.h
   - src/core/ext/client_channel/lb_policy_registry.h
   - src/core/ext/client_channel/parse_address.h
+  - src/core/ext/client_channel/proxy_mapper.h
+  - src/core/ext/client_channel/proxy_mapper_registry.h
   - src/core/ext/client_channel/resolver.h
   - src/core/ext/client_channel/resolver_factory.h
   - src/core/ext/client_channel/resolver_registry.h
@@ -407,11 +411,14 @@ filegroups:
   - src/core/ext/client_channel/connector.c
   - src/core/ext/client_channel/default_initial_connect_string.c
   - src/core/ext/client_channel/http_connect_handshaker.c
+  - src/core/ext/client_channel/http_proxy.c
   - src/core/ext/client_channel/initial_connect_string.c
   - src/core/ext/client_channel/lb_policy.c
   - src/core/ext/client_channel/lb_policy_factory.c
   - src/core/ext/client_channel/lb_policy_registry.c
   - src/core/ext/client_channel/parse_address.c
+  - src/core/ext/client_channel/proxy_mapper.c
+  - src/core/ext/client_channel/proxy_mapper_registry.c
   - src/core/ext/client_channel/resolver.c
   - src/core/ext/client_channel/resolver_factory.c
   - src/core/ext/client_channel/resolver_registry.c
@@ -683,7 +690,7 @@ filegroups:
   - include/grpc/grpc_security.h
   - include/grpc/grpc_security_constants.h
   headers:
-  - third_party/objective_c/Cronet/cronet_c_for_grpc.h
+  - third_party/Cronet/bidirectional_stream_c.h
   src:
   - src/core/ext/transport/cronet/client/secure/cronet_channel_create.c
   - src/core/ext/transport/cronet/transport/cronet_api_dummy.c
@@ -1226,6 +1233,22 @@ libs:
   vs_project_guid: '{B6E81D84-2ACB-41B8-8781-493A944C7817}'
   vs_props:
   - protoc
+- name: http2_client_main
+  build: private
+  language: c++
+  headers:
+  - test/cpp/interop/http2_client.h
+  src:
+  - src/proto/grpc/testing/empty.proto
+  - src/proto/grpc/testing/messages.proto
+  - src/proto/grpc/testing/test.proto
+  - test/cpp/interop/http2_client.cc
+  deps:
+  - grpc++_test_util
+  - grpc_test_util
+  - grpc++
+  - grpc
+  - grpc++_test_config
 - name: interop_client_helper
   build: private
   language: c++
@@ -1268,6 +1291,7 @@ libs:
   src:
   - test/cpp/interop/server_helper.cc
   deps:
+  - grpc++_test_util
   - grpc_test_util
   - grpc++
   - grpc
@@ -1304,7 +1328,6 @@ libs:
   - test/cpp/qps/driver.h
   - test/cpp/qps/histogram.h
   - test/cpp/qps/interarrival.h
-  - test/cpp/qps/limit_cores.h
   - test/cpp/qps/parse_json.h
   - test/cpp/qps/qps_worker.h
   - test/cpp/qps/report.h
@@ -1321,7 +1344,6 @@ libs:
   - test/cpp/qps/client_async.cc
   - test/cpp/qps/client_sync.cc
   - test/cpp/qps/driver.cc
-  - test/cpp/qps/limit_cores.cc
   - test/cpp/qps/parse_json.cc
   - test/cpp/qps/qps_worker.cc
   - test/cpp/qps/report.cc
@@ -2331,6 +2353,43 @@ targets:
   - mac
   - linux
   - posix
+- name: memory_profile_client
+  build: test
+  run: false
+  language: c
+  src:
+  - test/core/memory_usage/client.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
+- name: memory_profile_server
+  build: test
+  run: false
+  language: c
+  src:
+  - test/core/memory_usage/server.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
+- name: memory_profile_test
+  cpu_cost: 1.5
+  build: test
+  language: c
+  src:
+  - test/core/memory_usage/memory_usage_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
+  platforms:
+  - mac
+  - linux
+  - posix
 - name: message_compress_test
   build: test
   language: c
@@ -3194,12 +3253,12 @@ targets:
   - src/proto/grpc/lb/v1/load_balancer.proto
   - test/cpp/grpclb/grpclb_test.cc
   deps:
-  - gpr
-  - gpr_test_util
-  - grpc
-  - grpc++
   - grpc++_test_util
   - grpc_test_util
+  - grpc++
+  - grpc
+  - gpr_test_util
+  - gpr
 - name: health_service_end2end_test
   gtest: true
   build: test
@@ -3213,6 +3272,22 @@ targets:
   - grpc
   - gpr_test_util
   - gpr
+- name: http2_client
+  build: test
+  run: false
+  language: c++
+  src: []
+  deps:
+  - http2_client_main
+  - grpc++_test_util
+  - grpc_test_util
+  - grpc++
+  - grpc
+  - grpc++_test_config
+  platforms:
+  - mac
+  - linux
+  - posix
 - name: hybrid_end2end_test
   gtest: true
   build: test
@@ -3599,16 +3674,17 @@ targets:
   - test/cpp/interop/client_helper.h
   - test/cpp/interop/interop_client.h
   - test/cpp/interop/stress_interop_client.h
+  - test/cpp/util/create_test_channel.h
   - test/cpp/util/metrics_server.h
   src:
   - src/proto/grpc/testing/empty.proto
   - src/proto/grpc/testing/messages.proto
   - src/proto/grpc/testing/metrics.proto
   - src/proto/grpc/testing/test.proto
-  - test/cpp/interop/client_helper.cc
   - test/cpp/interop/interop_client.cc
   - test/cpp/interop/stress_interop_client.cc
   - test/cpp/interop/stress_test.cc
+  - test/cpp/util/create_test_channel.cc
   - test/cpp/util/metrics_server.cc
   deps:
   - grpc++_test_util
@@ -3840,7 +3916,6 @@ node_modules:
   - src/node/ext/channel.h
   - src/node/ext/channel_credentials.h
   - src/node/ext/completion_queue.h
-  - src/node/ext/completion_queue_async_worker.h
   - src/node/ext/server.h
   - src/node/ext/server_credentials.h
   - src/node/ext/timeval.h
@@ -3859,8 +3934,8 @@ node_modules:
   - src/node/ext/call_credentials.cc
   - src/node/ext/channel.cc
   - src/node/ext/channel_credentials.cc
-  - src/node/ext/completion_queue.cc
+  - src/node/ext/completion_queue_threadpool.cc
-  - src/node/ext/completion_queue_async_worker.cc
+  - src/node/ext/completion_queue_uv.cc
   - src/node/ext/node_grpc.cc
   - src/node/ext/server.cc
   - src/node/ext/server_credentials.cc

build_config.rb

@@ -0,0 +1,32 @@
+# Copyright 2017, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+module GrpcBuildConfig
+  CORE_WINDOWS_DLL = '/tmp/libs/opt/grpc-2.dll'
+end

config.m4

@@ -5,9 +5,9 @@ if test "$PHP_GRPC" != "no"; then
   dnl Write more examples of tests here...
 
   dnl # --with-grpc -> add include path
-  PHP_ADD_INCLUDE(../../grpc/include)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/include)
-  PHP_ADD_INCLUDE(../../grpc/src/php/ext/grpc)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/php/ext/grpc)
-  PHP_ADD_INCLUDE(../../grpc/third_party/boringssl/include)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/boringssl/include)
 
   LIBS="-lpthread $LIBS"
 
@@ -254,11 +254,14 @@ if test "$PHP_GRPC" != "no"; then
     src/core/ext/client_channel/connector.c \
     src/core/ext/client_channel/default_initial_connect_string.c \
     src/core/ext/client_channel/http_connect_handshaker.c \
+    src/core/ext/client_channel/http_proxy.c \
     src/core/ext/client_channel/initial_connect_string.c \
     src/core/ext/client_channel/lb_policy.c \
     src/core/ext/client_channel/lb_policy_factory.c \
     src/core/ext/client_channel/lb_policy_registry.c \
     src/core/ext/client_channel/parse_address.c \
+    src/core/ext/client_channel/proxy_mapper.c \
+    src/core/ext/client_channel/proxy_mapper_registry.c \
     src/core/ext/client_channel/resolver.c \
     src/core/ext/client_channel/resolver_factory.c \
     src/core/ext/client_channel/resolver_registry.c \

doc/PROTOCOL-HTTP2.md

@@ -153,6 +153,7 @@ DATA (flags = END_STREAM)
 HEADERS (flags = END_HEADERS)
 :status = 200
 grpc-encoding = gzip
+content-type = application/grpc+proto
 
 DATA
 <Length-Prefixed Message>

doc/environment_variables.md

@@ -55,8 +55,10 @@ some configuration as environment variables that can be set.
   - secure_endpoint - traces bytes flowing through encrypted channels
   - transport_security - traces metadata about secure channel establishment
   - tcp - traces bytes in and out of a channel
+  
   'all' can additionally be used to turn all traces on.
   Individual traces can be disabled by prefixing them with '-'.
+ 
   Example:
   export GRPC_TRACE=all,-pending_tags
 

doc/load-balancing.md

@@ -1,13 +1,21 @@
 Load Balancing in gRPC
-=======================
+======================
 
-# Objective
+# Scope
 
-To design a load balancing API between a gRPC client and a Load Balancer to
+This document explains the design for load balancing within gRPC.
-instruct the client how to send load to multiple backend servers.
 
 # Background
 
+## Per-Call Load Balancing
+
+It is worth noting that load-balancing within gRPC happens on a per-call
+basis, not a per-connection basis.  In other words, even if all requests
+come from a single client, we still want them to be load-balanced across
+all servers.
+
+## Approaches to Load Balancing
+
 Prior to any gRPC specifics, we explore some usual ways to approach load
 balancing.
 
@@ -44,30 +52,31 @@ list of servers to the client.
 ### External Load Balancing Service
 
 The client load balancing code is kept simple and portable, implementing
-well-known algorithms (ie, Round Robin) for server selection.
+well-known algorithms (e.g., Round Robin) for server selection.
-Complex load balancing algorithms are instead provided by the load balancer. The
+Complex load balancing algorithms are instead provided by the load
-client relies on the load balancer to provide _load balancing configuration_ and
+balancer. The client relies on the load balancer to provide _load
-_the list of servers_ to which the client should send requests. The balancer
+balancing configuration_ and _the list of servers_ to which the client
-updates the server list as needed to balance the load as well as handle server
+should send requests. The balancer updates the server list as needed
+to balance the load as well as handle server unavailability or health
+issues. The load balancer will make any necessary complex decisions and
+inform the client. The load balancer may communicate with the backend
+servers to collect load and health information.
+
+# Requirements
+
+## Simple API and client
+
+The gRPC client load balancing code must be simple and portable. The
+client should only contain simple algorithms (e.g., Round Robin) for
+server selection.  For complex algorithms, the client should rely on
+a load balancer to provide load balancing configuration and the list of
+servers to which the client should send requests. The balancer will update
+the server list as needed to balance the load as well as handle server
 unavailability or health issues. The load balancer will make any necessary
-complex decisions and inform the client. The load balancer may communicate with
+complex decisions and inform the client. The load balancer may communicate
-the backend servers to collect load and health information.
+with the backend servers to collect load and health information.
-
-
-## Requirements
-
-#### Simple API and client
-
-The gRPC client load balancing code must be simple and portable. The client
-should only contain simple algorithms (ie Round Robin) for server selection. For
-complex algorithms, the client should rely on a load balancer to provide load
-balancing configuration and the list of servers to which the client should send
-requests. The balancer will update the server list as needed to balance the load
-as well as handle server unavailability or health issues. The load balancer will
-make any necessary complex decisions and inform the client. The load balancer
-may communicate with the backend servers to collect load and health information.
 
-#### Security
+## Security
 
 The load balancer may be separate from the actual server backends and a
 compromise of the load balancer should only lead to a compromise of the
@@ -75,70 +84,64 @@ loadbalancing functionality. In other words, a compromised load balancer should
 not be able to cause a client to trust a (potentially malicious) backend server
 any more than in a comparable situation without loadbalancing.
 
-# Proposed Architecture
+# Architecture
-
+
-The gRPC load balancing implements the external load balancing server approach:
+## Overview
-an external load balancer provides simple clients with an up-to-date list of
+
-servers.
+The primary mechanism for load-balancing in gRPC is external
-
+load-balancing, where an external load balancer provides simple clients
-![image](images/load_balancing_design.png)
+with an up-to-date list of servers.
-
+
-1. On startup, the gRPC client issues a name resolution request for the service.
+The gRPC client does support an API for built-in load balancing policies.
-   The name will resolve to one or more IP addresses to gRPC servers, a hint on
+However, there are only a small number of these (one of which is the
-   whether the IP address(es) point to a load balancer or not, and also return a
+`grpclb` policy, which implements external load balancing), and users
-   client config.
+are discouraged from trying to extend gRPC by adding more.  Instead, new
-2. The gRPC client connects to a gRPC Server.
+load balancing policies should be implemented in external load balancers.
-   1. If the name resolution has hinted that the endpoint is a load balancer,
+
-      the client's gRPC LB policy will attempt to open a stream to the load
+## Workflow
-      balancer service. The server may respond in only one of the following
+
-      ways.
+Load-balancing policies fit into the gRPC client workflow in between
-      1. `status::UNIMPLEMENTED`. There is no loadbalancing in use. The client
+name resolution and the connection to the server.  Here's how it all
-         call will fail.
+works:
-      2. "I am a Load Balancer and here is the server list." (Goto Step 4.)
+
-      3. "Please contact Load Balancer X" (See Step 3.) The client will close
+![image](images/load-balancing.png)
-         this connection and cancel the stream.
+
-      4. If the server fails to respond, the client will wait for some timeout
+1. On startup, the gRPC client issues a [name resolution](naming.md) request
-         and then re-resolve the name (process to Step 1 above).
+   for the server name.  The name will resolve to one or more IP addresses,
-   2. If the name resolution has not hinted that the endpoint is a load
+   each of which will indicate whether it is a server address or
-      balancer, the client connects directly to the service it wants to talk to.
+   a load balancer address, and a [service config](service_config.md)
-3. The gRPC client's gRPC LB policy opens a separate connection to the Load
+   that indicates which client-side load-balancing policy to use (e.g.,
-   Balancer. If this fails, it will go back to step 1 and try another address.
+   `round_robin` or `grpclb`).
-   1. During channel initialization to the Load Balancer, the client will
+2. The client instantiates the load balancing policy.
-      attempt to open a stream to the Load Balancer service.
+   - Note: If all addresses returned by the resolver are balancer
-   2. The Load Balancer will return a server list to the gRPC client. If the
+     addresses, then the client will use the `grpclb` policy, regardless
-      server list is empty, the call will wait until a non-empty one is
+     of what load-balancing policy was requested by the service config.
-      received. Optional: The Load Balancer will also open channels to the gRPC
+     Otherwise, the client will use the load-balancing policy requested
-      servers if load reporting is needed.
+     by the service config.  If no load-balancing policy is requested
-4. The gRPC client will send RPCs to the gRPC servers contained in the server
+     by the service config, then the client will default to a policy
-   list from the Load Balancer.
+     that picks the first available server address.
-5. Optional: The gRPC servers may periodically report load to the Load Balancer.
+3. The load balancing policy creates a subchannel to each server address.
-
+   - For all policies *except* `grpclb`, this means one subchannel for each
-## Client
+     address returned by the resolver. Note that these policies
-
+     ignore any balancer addresses returned by the resolver.
-When establishing a gRPC _stream_ to the balancer, the client will send an initial
+   - In the case of the `grpclb` policy, the workflow is as follows:
-request to the load balancer (via a regular gRPC message). The load balancer
+     1. The policy opens a stream to one of the balancer addresses returned
-will respond with client config (including, for example, settings for flow
+        by the resolver. It asks the balancer for the server addresses to
-control, RPC deadlines, etc.) or a redirect to another load balancer. If the
+        use for the server name originally requested by the client (i.e.,
-balancer did not redirect the client, it will then send a list of servers to the
+        the same one originally passed to the name resolver).
-client. The client will contain simple load balancing logic for choosing the
+        - Note: The `grpclb` policy currently ignores any non-balancer
-next server when it needs to send a request.
+          addresses returned by the resolver. However, in the future, it
-
+          may be changed to use these addresses as a fallback in case no
-## Load Balancer
+          balancers can be contacted.
-
+     2. The gRPC servers to which the load balancer is directing the client
-The Load Balancer is responsible for providing the client with a list of servers
+        may report load to the load balancers, if that information is needed
-and client RPC parameters. The balancer chooses when to update the list of
+        by the load balancer's configuration.
-servers and can decide whether to provide a complete list, a subset, or a
+     3. The load balancer returns a server list to the gRPC client's `grpclb`
-specific list of “picked” servers in a particular order. The balancer can
+        policy. The `grpclb` policy will then create a subchannel to each of
-optionally provide an expiration interval after which the server list should no
+        server in the list.
-longer be trusted and should be updated by the balancer.
+4. For each RPC sent, the load balancing policy decides which
-
+   subchannel (i.e., which server) the RPC should be sent to.
-The load balancer may open reporting streams to each server contained in the
+   - In the case of the `grpclb` policy, the client will send requests
-server list. These streams are primarily used for load reporting. For example,
+     to the servers in the order in which they were returned by the load
-Weighted Round Robin requires that the servers report utilization to the load
+     balancer.  If the server list is empty, the call will block until a
-balancer in order to compute the next list of servers.
+     non-empty one is received.
-
-## Server
-
-The gRPC Server is responsible for answering RPC requests and providing
-responses to the client. The server will also report load to the load balancer
-if a reporting stream was opened for this purpose.

doc/naming.md

@@ -1,30 +1,65 @@
-#gRPC Naming and Discovery Support
+# gRPC Name Resolution
 
 ## Overview
 
-gRPC supports DNS as the default name-system. A number of alternative name-systems are used in various deployments. We propose an API that is general enough to support a range of name-systems and the corresponding syntax for names. The gRPC client library in various languages will provide a plugin mechanism so resolvers for different name-systems can be plugged in.
+gRPC supports DNS as the default name-system. A number of alternative
+name-systems are used in various deployments. We support an API that is
+general enough to support a range of name-systems and the corresponding
+syntax for names. The gRPC client library in various languages will
+provide a plugin mechanism so resolvers for different name-systems can
+be plugged in.
 
-## Detailed Proposal
+## Detailed Design
 
- A fully qualified, self contained name used for gRPC channel construction uses the syntax:
+### Name Syntax
+
+A fully qualified, self contained name used for gRPC channel construction
+uses the syntax:
 
 ```
 scheme://authority/endpoint_name
 ```
 
-Here, scheme indicates the name-system to be used. Example schemes to be supported include: 
+Here, `scheme` indicates the name-system to be used. Currently, we
+support the following schemes:
+
+- `dns`
+
+- `ipv4` (IPv4 address)
+
+- `ipv6` (IPv6 address)
+
+- `unix` (path to unix domain socket -- unix systems only)
 
-* `dns`
+In the future, additional schemes such as `etcd` could be added.
 
-* `etcd`
+The `authority` indicates some scheme-specific bootstrap information, e.g.,
+for DNS, the authority may include the IP[:port] of the DNS server to
+use. Often, a DNS name may be used as the authority, since the ability to
+resolve DNS names is already built into all gRPC client libraries.
 
-Authority indicates some scheme-specific bootstrap information, e.g., for DNS, the authority may include the IP[:port] of the DNS server to use. Often, a DNS name may used as the authority, since the ability to resolve DNS names is already built into all gRPC client libraries.
+Finally, the `endpoint_name` indicates a concrete name to be looked up
+in a given name-system identified by the scheme and the authority. The
+syntax of the endpoint name is dictated by the scheme in use.
 
-Finally, the  endpoint_name indicates a concrete name to be looked up in a given name-system identified by the scheme and the authority. The syntax of endpoint name is dictated by the scheme in use.
+### Resolver Plugins
 
-### Plugins
+The gRPC client library will use the specified scheme to pick the right
+resolver plugin and pass it the fully qualified name string.
 
-The gRPC client library will switch on the scheme to pick the right resolver plugin and pass it the fully qualified name string.
+Resolvers should be able to contact the authority and get a resolution
+that they return back to the gRPC client library. The returned contents
+include:
 
-Resolvers should be able to contact the authority and get a resolution that they return back to the gRPC client library. The returned contents include a list of IP:port, an optional config and optional auth config data to be used for channel authentication. The plugin API allows the resolvers to continuously watch an endpoint_name and return updated resolutions as needed. 
+- A list of resolved addresses, each of which has three attributes:
+  - The address itself, including both IP address and port.
+  - A boolean indicating whether the address is a backend address (i.e.,
+    the address to use to contact the server directly) or a balancer
+    address (for cases where [external load balancing](load-balancing.md)
+    is in use).
+  - The name of the balancer, if the address is a balancer address.
+    This will be used to perform peer authorization.
+- A [service config](service_config.md).
 
+The plugin API allows the resolvers to continuously watch an endpoint
+and return updated resolutions as needed.

doc/negative-http2-interop-test-descriptions.md

@@ -49,7 +49,8 @@ server. The client should handle the goaway by switching to a new stream without
 the user application having to do a thing.
 
 Client Procedure:
- 1. Client sends two UnaryCall requests with:
+ 1. Client sends two UnaryCall requests (and sleeps for 1 second in-between).
+ TODO: resolve [9300](https://github.com/grpc/grpc/issues/9300) and remove the 1 second sleep
  
     ```
     {
@@ -61,14 +62,14 @@ Client Procedure:
     ```
 
 Client asserts:
-* Call was successful.
+* Both calls are successful.
 * Response payload body is 314159 bytes in size.
 
 Server Procedure:
   1. Server sends a GOAWAY after receiving the first UnaryCall.
 
 Server asserts:
-* The second UnaryCall has a different stream_id than the first one.
+* Two different connections were used from the client.
 
 ### rst_after_header
 

doc/service_config.md

@@ -0,0 +1,147 @@
+Service Config in gRPC
+======================
+
+# Objective
+
+The service config is a mechanism that allows service owners to publish
+parameters to be automatically used by all clients of their service.
+
+# Format
+
+The service config is a JSON string of the following form:
+
+```
+{
+  # Load balancing policy name.
+  # Supported values are 'round_robin' and 'grpclb'.
+  # Optional; if unset, the default behavior is pick the first available
+  # backend.
+  # Note that if the resolver returns only balancer addresses and no
+  # backend addresses, gRPC will always use the 'grpclb' policy,
+  # regardless of what this field is set to.
+  'loadBalancingPolicy': string,
+
+  # Per-method configuration.  Optional.
+  'methodConfig': [
+    {
+      # The names of the methods to which this method config applies. There
+      # must be at least one name. Each name entry must be unique across the
+      # entire service config. If the 'method' field is empty, then this
+      # method config specifies the defaults for all methods for the specified
+      # service.
+      #
+      # For example, let's say that the service config contains the following
+      # method config entries:
+      #
+      # 'methodConfig': [
+      #   { 'name': [ { 'service': 'MyService' } ] ... },
+      #   { 'name': [ { 'service': 'MyService', 'method': 'Foo' } ] ... }
+      # ]
+      #
+      # For a request for MyService/Foo, we will use the second entry, because
+      # it exactly matches the service and method name.
+      # For a request for MyService/Bar, we will use the first entry, because
+      # it provides the default for all methods of MyService.
+      'name': [
+        {
+          # RPC service name.  Required.
+          # If using gRPC with protobuf as the IDL, then this will be of
+          # the form "pkg.service_name", where "pkg" is the package name
+          # defined in the proto file.
+          'service': string,
+
+          # RPC method name.  Optional (see above).
+          'method': string,
+        }
+      ],
+
+      # Whether RPCs sent to this method should wait until the connection is
+      # ready by default. If false, the RPC will abort immediately if there
+      # is a transient failure connecting to the server. Otherwise, gRPC will
+      # attempt to connect until the deadline is exceeded.
+      #
+      # The value specified via the gRPC client API will override the value
+      # set here. However, note that setting the value in the client API will
+      # also affect transient errors encountered during name resolution,
+      # which cannot be caught by the value here, since the service config
+      # is obtained by the gRPC client via name resolution.
+      'waitForReady': bool,
+
+      # The default timeout in seconds for RPCs sent to this method. This can
+      # be overridden in code. If no reply is received in the specified amount
+      # of time, the request is aborted and a deadline-exceeded error status
+      # is returned to the caller.
+      #
+      # The actual deadline used will be the minimum of the value specified
+      # here and the value set by the application via the gRPC client API.
+      # If either one is not set, then the other will be used.
+      # If neither is set, then the request has no deadline.
+      #
+      # The format of the value is that of the 'Duration' type defined here:
+      # https://developers.google.com/protocol-buffers/docs/proto3#json
+      'timeout': string,
+
+      # The maximum allowed payload size for an individual request or object
+      # in a stream (client->server) in bytes. The size which is measured is
+      # the serialized, uncompressed payload in bytes. This applies both
+      # to streaming and non-streaming requests.
+      #
+      # The actual value used is the minimum of the value specified here and
+      # the value set by the application via the gRPC client API.
+      # If either one is not set, then the other will be used.
+      # If neither is set, then the built-in default is used.
+      #
+      # If a client attempts to send an object larger than this value, it
+      # will not be sent and the client will see an error.
+      # Note that 0 is a valid value, meaning that the request message must
+      # be empty.
+      #
+      # The format of the value is that of the 'uint64' type defined here:
+      # https://developers.google.com/protocol-buffers/docs/proto3#json
+      'maxRequestMessageBytes': string,
+
+      # The maximum allowed payload size for an individual response or object
+      # in a stream (server->client) in bytes. The size which is measured is
+      # the serialized, uncompressed payload in bytes. This applies both
+      # to streaming and non-streaming requests.
+      #
+      # The actual value used is the minimum of the value specified here and
+      # the value set by the application via the gRPC client API.
+      # If either one is not set, then the other will be used.
+      # If neither is set, then the built-in default is used.
+      #
+      # If a server attempts to send an object larger than this value, it
+      # will not be sent, and the client will see an error.
+      # Note that 0 is a valid value, meaning that the response message must
+      # be empty.
+      #
+      # The format of the value is that of the 'uint64' type defined here:
+      # https://developers.google.com/protocol-buffers/docs/proto3#json
+      'maxResponseMessageBytes': string
+    }
+  ]
+}
+```
+
+Note that new per-method parameters may be added in the future as new
+functionality is introduced.
+
+# Architecture
+
+A service config is associated with a server name.  The [name
+resolver](naming.md) plugin, when asked to resolve a particular server
+name, will return both the resolved addresses and the service config.
+
+TODO(roth): Design how the service config will be encoded in DNS.
+
+# APIs
+
+The service config is used in the following APIs:
+
+- In the resolver API, used by resolver plugins to return the service
+  config to the gRPC client.
+- In the gRPC client API, where users can query the channel to obtain
+  the service config associated with the channel (for debugging
+  purposes).
+- In the gRPC client API, where users can set the service config
+  explicitly.  This is intended for use in unit tests.

examples/cpp/helloworld/BUILD

@@ -0,0 +1,42 @@
+# Copyright 2017, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+cc_binary(
+    name = "greeter_client",
+    srcs = ["greeter_client.cc"],
+    deps = ["//examples/protos:helloworld"],
+    defines = ["BAZEL_BUILD"],
+)
+
+cc_binary(
+    name = "greeter_server",
+    srcs = ["greeter_server.cc"],
+    deps = ["//examples/protos:helloworld"],
+    defines = ["BAZEL_BUILD"],
+)

examples/cpp/helloworld/greeter_client.cc

@@ -37,7 +37,11 @@
 
 #include <grpc++/grpc++.h>
 
+#ifdef BAZEL_BUILD
+#include "examples/protos/helloworld.grpc.pb.h"
+#else
 #include "helloworld.grpc.pb.h"
+#endif
 
 using grpc::Channel;
 using grpc::ClientContext;

examples/cpp/helloworld/greeter_server.cc

@@ -37,7 +37,11 @@
 
 #include <grpc++/grpc++.h>
 
+#ifdef BAZEL_BUILD
+#include "examples/protos/helloworld.grpc.pb.h"
+#else
 #include "helloworld.grpc.pb.h"
+#endif
 
 using grpc::Server;
 using grpc::ServerBuilder;

examples/protos/BUILD

@@ -0,0 +1,52 @@
+# Copyright 2017, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+package(default_visibility = ["//visibility:public"])
+
+load("//bazel:grpc_build_system.bzl", "grpc_proto_library")
+
+grpc_proto_library(
+    name = "auth_sample",
+    srcs = ["auth_sample.proto"],
+)
+
+grpc_proto_library(
+    name = "hellostreamingworld",
+    srcs = ["hellostreamingworld.proto"],
+)
+
+grpc_proto_library(
+    name = "helloworld",
+    srcs = ["helloworld.proto"],
+)
+
+grpc_proto_library(
+    name = "route_guide",
+    srcs = ["route_guide.proto"],
+)

gRPC-Core.podspec

@@ -148,6 +148,7 @@ Pod::Spec.new do |s|
                       'include/grpc/impl/codegen/atm_gcc_atomic.h',
                       'include/grpc/impl/codegen/atm_gcc_sync.h',
                       'include/grpc/impl/codegen/atm_windows.h',
+                      'include/grpc/impl/codegen/gpr_slice.h',
                       'include/grpc/impl/codegen/gpr_types.h',
                       'include/grpc/impl/codegen/port_platform.h',
                       'include/grpc/impl/codegen/slice.h',
@@ -175,6 +176,7 @@ Pod::Spec.new do |s|
                       'include/grpc/impl/codegen/atm_gcc_atomic.h',
                       'include/grpc/impl/codegen/atm_gcc_sync.h',
                       'include/grpc/impl/codegen/atm_windows.h',
+                      'include/grpc/impl/codegen/gpr_slice.h',
                       'include/grpc/impl/codegen/gpr_types.h',
                       'include/grpc/impl/codegen/port_platform.h',
                       'include/grpc/impl/codegen/slice.h',
@@ -398,11 +400,14 @@ Pod::Spec.new do |s|
                       'src/core/ext/client_channel/client_channel_factory.h',
                       'src/core/ext/client_channel/connector.h',
                       'src/core/ext/client_channel/http_connect_handshaker.h',
+                      'src/core/ext/client_channel/http_proxy.h',
                       'src/core/ext/client_channel/initial_connect_string.h',
                       'src/core/ext/client_channel/lb_policy.h',
                       'src/core/ext/client_channel/lb_policy_factory.h',
                       'src/core/ext/client_channel/lb_policy_registry.h',
                       'src/core/ext/client_channel/parse_address.h',
+                      'src/core/ext/client_channel/proxy_mapper.h',
+                      'src/core/ext/client_channel/proxy_mapper_registry.h',
                       'src/core/ext/client_channel/resolver.h',
                       'src/core/ext/client_channel/resolver_factory.h',
                       'src/core/ext/client_channel/resolver_registry.h',
@@ -604,11 +609,14 @@ Pod::Spec.new do |s|
                       'src/core/ext/client_channel/connector.c',
                       'src/core/ext/client_channel/default_initial_connect_string.c',
                       'src/core/ext/client_channel/http_connect_handshaker.c',
+                      'src/core/ext/client_channel/http_proxy.c',
                       'src/core/ext/client_channel/initial_connect_string.c',
                       'src/core/ext/client_channel/lb_policy.c',
                       'src/core/ext/client_channel/lb_policy_factory.c',
                       'src/core/ext/client_channel/lb_policy_registry.c',
                       'src/core/ext/client_channel/parse_address.c',
+                      'src/core/ext/client_channel/proxy_mapper.c',
+                      'src/core/ext/client_channel/proxy_mapper_registry.c',
                       'src/core/ext/client_channel/resolver.c',
                       'src/core/ext/client_channel/resolver_factory.c',
                       'src/core/ext/client_channel/resolver_registry.c',
@@ -810,11 +818,14 @@ Pod::Spec.new do |s|
                               'src/core/ext/client_channel/client_channel_factory.h',
                               'src/core/ext/client_channel/connector.h',
                               'src/core/ext/client_channel/http_connect_handshaker.h',
+                              'src/core/ext/client_channel/http_proxy.h',
                               'src/core/ext/client_channel/initial_connect_string.h',
                               'src/core/ext/client_channel/lb_policy.h',
                               'src/core/ext/client_channel/lb_policy_factory.h',
                               'src/core/ext/client_channel/lb_policy_registry.h',
                               'src/core/ext/client_channel/parse_address.h',
+                              'src/core/ext/client_channel/proxy_mapper.h',
+                              'src/core/ext/client_channel/proxy_mapper_registry.h',
                               'src/core/ext/client_channel/resolver.h',
                               'src/core/ext/client_channel/resolver_factory.h',
                               'src/core/ext/client_channel/resolver_registry.h',

grpc.def

@@ -164,7 +164,9 @@ EXPORTS
     grpc_slice_buffer_move_into
     grpc_slice_buffer_trim_end
     grpc_slice_buffer_move_first
+    grpc_slice_buffer_move_first_into_buffer
     grpc_slice_buffer_take_first
+    grpc_slice_buffer_undo_take_first
     gpr_malloc
     gpr_free
     gpr_realloc

grpc.gemspec

@@ -73,6 +73,7 @@ Gem::Specification.new do |s|
   s.files += %w( include/grpc/impl/codegen/atm_gcc_atomic.h )
   s.files += %w( include/grpc/impl/codegen/atm_gcc_sync.h )
   s.files += %w( include/grpc/impl/codegen/atm_windows.h )
+  s.files += %w( include/grpc/impl/codegen/gpr_slice.h )
   s.files += %w( include/grpc/impl/codegen/gpr_types.h )
   s.files += %w( include/grpc/impl/codegen/port_platform.h )
   s.files += %w( include/grpc/impl/codegen/slice.h )
@@ -156,6 +157,7 @@ Gem::Specification.new do |s|
   s.files += %w( include/grpc/impl/codegen/atm_gcc_atomic.h )
   s.files += %w( include/grpc/impl/codegen/atm_gcc_sync.h )
   s.files += %w( include/grpc/impl/codegen/atm_windows.h )
+  s.files += %w( include/grpc/impl/codegen/gpr_slice.h )
   s.files += %w( include/grpc/impl/codegen/gpr_types.h )
   s.files += %w( include/grpc/impl/codegen/port_platform.h )
   s.files += %w( include/grpc/impl/codegen/slice.h )
@@ -315,11 +317,14 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/ext/client_channel/client_channel_factory.h )
   s.files += %w( src/core/ext/client_channel/connector.h )
   s.files += %w( src/core/ext/client_channel/http_connect_handshaker.h )
+  s.files += %w( src/core/ext/client_channel/http_proxy.h )
   s.files += %w( src/core/ext/client_channel/initial_connect_string.h )
   s.files += %w( src/core/ext/client_channel/lb_policy.h )
   s.files += %w( src/core/ext/client_channel/lb_policy_factory.h )
   s.files += %w( src/core/ext/client_channel/lb_policy_registry.h )
   s.files += %w( src/core/ext/client_channel/parse_address.h )
+  s.files += %w( src/core/ext/client_channel/proxy_mapper.h )
+  s.files += %w( src/core/ext/client_channel/proxy_mapper_registry.h )
   s.files += %w( src/core/ext/client_channel/resolver.h )
   s.files += %w( src/core/ext/client_channel/resolver_factory.h )
   s.files += %w( src/core/ext/client_channel/resolver_registry.h )
@@ -521,11 +526,14 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/ext/client_channel/connector.c )
   s.files += %w( src/core/ext/client_channel/default_initial_connect_string.c )
   s.files += %w( src/core/ext/client_channel/http_connect_handshaker.c )
+  s.files += %w( src/core/ext/client_channel/http_proxy.c )
   s.files += %w( src/core/ext/client_channel/initial_connect_string.c )
   s.files += %w( src/core/ext/client_channel/lb_policy.c )
   s.files += %w( src/core/ext/client_channel/lb_policy_factory.c )
   s.files += %w( src/core/ext/client_channel/lb_policy_registry.c )
   s.files += %w( src/core/ext/client_channel/parse_address.c )
+  s.files += %w( src/core/ext/client_channel/proxy_mapper.c )
+  s.files += %w( src/core/ext/client_channel/proxy_mapper_registry.c )
   s.files += %w( src/core/ext/client_channel/resolver.c )
   s.files += %w( src/core/ext/client_channel/resolver_factory.c )
   s.files += %w( src/core/ext/client_channel/resolver_registry.c )

include/grpc++/impl/codegen/call.h

@@ -249,7 +249,7 @@ class CallOpSendMessage {
     op->op = GRPC_OP_SEND_MESSAGE;
     op->flags = write_options_.flags();
     op->reserved = NULL;
-    op->data.send_message = send_buf_;
+    op->data.send_message.send_message = send_buf_;
     // Flags are per-message: clear them after use.
     write_options_.Clear();
   }
@@ -298,7 +298,7 @@ class CallOpRecvMessage {
     op->op = GRPC_OP_RECV_MESSAGE;
     op->flags = 0;
     op->reserved = NULL;
-    op->data.recv_message = &recv_buf_;
+    op->data.recv_message.recv_message = &recv_buf_;
   }
 
   void FinishOp(bool* status, int max_receive_message_size) {
@@ -379,7 +379,7 @@ class CallOpGenericRecvMessage {
     op->op = GRPC_OP_RECV_MESSAGE;
     op->flags = 0;
     op->reserved = NULL;
-    op->data.recv_message = &recv_buf_;
+    op->data.recv_message.recv_message = &recv_buf_;
   }
 
   void FinishOp(bool* status, int max_receive_message_size) {
@@ -486,7 +486,8 @@ class CallOpRecvInitialMetadata {
     memset(&recv_initial_metadata_arr_, 0, sizeof(recv_initial_metadata_arr_));
     grpc_op* op = &ops[(*nops)++];
     op->op = GRPC_OP_RECV_INITIAL_METADATA;
-    op->data.recv_initial_metadata = &recv_initial_metadata_arr_;
+    op->data.recv_initial_metadata.recv_initial_metadata =
+        &recv_initial_metadata_arr_;
     op->flags = 0;
     op->reserved = NULL;
   }

include/grpc++/impl/codegen/config.h

@@ -39,6 +39,12 @@
 #define GRPC_CUSTOM_STRING std::string
 #endif
 
+// The following macros are deprecated and appear only for users
+// with PB files generated using gRPC 1.0.x plugins. They should
+// not be used in new code
+#define GRPC_OVERRIDE override  // deprecated
+#define GRPC_FINAL final        // deprecated
+
 namespace grpc {
 
 typedef GRPC_CUSTOM_STRING string;

include/grpc++/support/channel_arguments.h

@@ -88,6 +88,10 @@ class ChannelArguments {
   /// The given buffer pool will be attached to the constructed channel
   void SetResourceQuota(const ResourceQuota& resource_quota);
 
+  /// Sets the max receive and send message sizes.
+  void SetMaxReceiveMessageSize(int size);
+  void SetMaxSendMessageSize(int size);
+
   /// Set LB policy name.
   /// Note that if the name resolver returns only balancer addresses, the
   /// grpclb LB policy will be used, regardless of what is specified here.

include/grpc/impl/codegen/gpr_slice.h

@@ -0,0 +1,84 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#ifndef GRPC_IMPL_CODEGEN_GPR_SLICE_H
+#define GRPC_IMPL_CODEGEN_GPR_SLICE_H
+
+/* WARNING: Please do not use this header. This was added as a temporary measure
+ * to not break some of the external projects that depend on gpr_slice_*
+ * functions. We are actively working on moving all the gpr_slice_* references
+ * to grpc_slice_* and this file will be removed
+ * */
+
+/* TODO (sreek) - Allowed by default but will be very soon turned off */
+#define GRPC_ALLOW_GPR_SLICE_FUNCTIONS 1
+
+#ifdef GRPC_ALLOW_GPR_SLICE_FUNCTIONS
+
+#define gpr_slice_refcount grpc_slice_refcount
+#define gpr_slice grpc_slice
+#define gpr_slice_buffer grpc_slice_buffer
+
+#define gpr_slice_ref grpc_slice_ref
+#define gpr_slice_unref grpc_slice_unref
+#define gpr_slice_new grpc_slice_new
+#define gpr_slice_new_with_user_data grpc_slice_new_with_user_data
+#define gpr_slice_new_with_len grpc_slice_new_with_len
+#define gpr_slice_malloc grpc_slice_malloc
+#define gpr_slice_from_copied_string grpc_slice_from_copied_string
+#define gpr_slice_from_copied_buffer grpc_slice_from_copied_buffer
+#define gpr_slice_from_static_string grpc_slice_from_static_string
+#define gpr_slice_sub grpc_slice_sub
+#define gpr_slice_sub_no_ref grpc_slice_sub_no_ref
+#define gpr_slice_split_tail grpc_slice_split_tail
+#define gpr_slice_split_head grpc_slice_split_head
+#define gpr_slice_cmp grpc_slice_cmp
+#define gpr_slice_str_cmp grpc_slice_str_cmp
+
+#define gpr_slice_buffer grpc_slice_buffer
+#define gpr_slice_buffer_init grpc_slice_buffer_init
+#define gpr_slice_buffer_destroy grpc_slice_buffer_destroy
+#define gpr_slice_buffer_add grpc_slice_buffer_add
+#define gpr_slice_buffer_add_indexed grpc_slice_buffer_add_indexed
+#define gpr_slice_buffer_addn grpc_slice_buffer_addn
+#define gpr_slice_buffer_tiny_add grpc_slice_buffer_tiny_add
+#define gpr_slice_buffer_pop grpc_slice_buffer_pop
+#define gpr_slice_buffer_reset_and_unref grpc_slice_buffer_reset_and_unref
+#define gpr_slice_buffer_swap grpc_slice_buffer_swap
+#define gpr_slice_buffer_move_into grpc_slice_buffer_move_into
+#define gpr_slice_buffer_trim_end grpc_slice_buffer_trim_end
+#define gpr_slice_buffer_move_first grpc_slice_buffer_move_first
+#define gpr_slice_buffer_take_first grpc_slice_buffer_take_first
+
+#endif /* GRPC_ALLOW_GPR_SLICE_FUNCTIONS */
+
+#endif /* GRPC_IMPL_CODEGEN_GPR_SLICE_H */

include/grpc/impl/codegen/grpc_types.h

@@ -179,6 +179,9 @@ typedef struct {
     Larger values give lower CPU usage for large messages, but more head of line
     blocking for small messages. */
 #define GRPC_ARG_HTTP2_MAX_FRAME_SIZE "grpc.http2.max_frame_size"
+/** How much data are we willing to queue up per stream if
+    GRPC_WRITE_BUFFER_HINT is set? This is an upper bound */
+#define GRPC_ARG_HTTP2_WRITE_BUFFER_SIZE "grpc.http2.write_buffer_size"
 /** Default authority to pass if none specified on call construction. A string.
  * */
 #define GRPC_ARG_DEFAULT_AUTHORITY "grpc.default_authority"
@@ -415,7 +418,9 @@ typedef struct grpc_op {
         grpc_compression_level level;
       } maybe_compression_level;
     } send_initial_metadata;
+    struct {
       struct grpc_byte_buffer *send_message;
+    } send_message;
     struct {
       size_t trailing_metadata_count;
       grpc_metadata *trailing_metadata;
@@ -427,11 +432,15 @@ typedef struct grpc_op {
         object, recv_initial_metadata->array is owned by the caller).
         After the operation completes, call grpc_metadata_array_destroy on this
         value, or reuse it in a future op. */
+    struct {
       grpc_metadata_array *recv_initial_metadata;
+    } recv_initial_metadata;
     /** ownership of the byte buffer is moved to the caller; the caller must
         call grpc_byte_buffer_destroy on this value, or reuse it in a future op.
        */
+    struct {
       struct grpc_byte_buffer **recv_message;
+    } recv_message;
     struct {
       /** ownership of the array is with the caller, but ownership of the
           elements stays with the call object (ie key, value members are owned

include/grpc/impl/codegen/slice.h

@@ -38,6 +38,7 @@
 #include <stdint.h>
 
 #include <grpc/impl/codegen/exec_ctx_fwd.h>
+#include <grpc/impl/codegen/gpr_slice.h>
 
 /* Slice API
 
@@ -92,11 +93,16 @@ typedef struct grpc_slice {
 /* Represents an expandable array of slices, to be interpreted as a
    single item. */
 typedef struct {
-  /* slices in the array */
+  /* This is for internal use only. External users (i.e any code outside grpc
+   * core) MUST NOT use this field */
+  grpc_slice *base_slices;
+
+  /* slices in the array (Points to the first valid grpc_slice in the array) */
   grpc_slice *slices;
   /* the number of slices in the array */
   size_t count;
-  /* the number of slices allocated in the array */
+  /* the number of slices allocated in the array. External users (i.e any code
+   * outside grpc core) MUST NOT use this field */
   size_t capacity;
   /* the combined length of all slices in the array */
   size_t length;
@@ -117,4 +123,22 @@ typedef struct {
   GRPC_SLICE_START_PTR(slice) + GRPC_SLICE_LENGTH(slice)
 #define GRPC_SLICE_IS_EMPTY(slice) (GRPC_SLICE_LENGTH(slice) == 0)
 
+#ifdef GRPC_ALLOW_GPR_SLICE_FUNCTIONS
+
+/* Duplicate GPR_* definitions */
+#define GPR_SLICE_START_PTR(slice)                  \
+  ((slice).refcount ? (slice).data.refcounted.bytes \
+                    : (slice).data.inlined.bytes)
+#define GPR_SLICE_LENGTH(slice)                      \
+  ((slice).refcount ? (slice).data.refcounted.length \
+                    : (slice).data.inlined.length)
+#define GPR_SLICE_SET_LENGTH(slice, newlen)                               \
+  ((slice).refcount ? ((slice).data.refcounted.length = (size_t)(newlen)) \
+                    : ((slice).data.inlined.length = (uint8_t)(newlen)))
+#define GPR_SLICE_END_PTR(slice) \
+  GRPC_SLICE_START_PTR(slice) + GRPC_SLICE_LENGTH(slice)
+#define GPR_SLICE_IS_EMPTY(slice) (GRPC_SLICE_LENGTH(slice) == 0)
+
+#endif /* GRPC_ALLOW_GPR_SLICE_FUNCTIONS */
+
 #endif /* GRPC_IMPL_CODEGEN_SLICE_H */

include/grpc/slice_buffer.h

@@ -77,8 +77,15 @@ GPRAPI void grpc_slice_buffer_trim_end(grpc_slice_buffer *src, size_t n,
 /* move the first n bytes of src into dst */
 GPRAPI void grpc_slice_buffer_move_first(grpc_slice_buffer *src, size_t n,
                                          grpc_slice_buffer *dst);
+/* move the first n bytes of src into dst (copying them) */
+GPRAPI void grpc_slice_buffer_move_first_into_buffer(grpc_exec_ctx *exec_ctx,
+                                                     grpc_slice_buffer *src,
+                                                     size_t n, void *dst);
 /* take the first slice in the slice buffer */
 GPRAPI grpc_slice grpc_slice_buffer_take_first(grpc_slice_buffer *src);
+/* undo the above with (a possibly different) \a slice */
+GPRAPI void grpc_slice_buffer_undo_take_first(grpc_slice_buffer *src,
+                                              grpc_slice slice);
 
 #ifdef __cplusplus
 }

include/grpc/support/log_windows.h

@@ -34,6 +34,8 @@
 #ifndef GRPC_SUPPORT_LOG_WINDOWS_H
 #define GRPC_SUPPORT_LOG_WINDOWS_H
 
+#include <grpc/impl/codegen/port_platform.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif

package.json

@@ -21,6 +21,7 @@
   "scripts": {
     "lint": "node ./node_modules/jshint/bin/jshint src/node/src src/node/test src/node/interop src/node/index.js --exclude-path=src/node/.jshintignore",
     "test": "./node_modules/.bin/mocha src/node/test && npm run-script lint",
+    "electron-build": "./node_modules/.bin/node-pre-gyp configure build --runtime=electron --disturl=https://atom.io/download/atom-shell",
     "gen_docs": "./node_modules/.bin/jsdoc -c src/node/jsdoc_conf.json",
     "coverage": "./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha src/node/test",
     "install": "./node_modules/.bin/node-pre-gyp install --fallback-to-build"
@@ -38,6 +39,7 @@
   "devDependencies": {
     "async": "^2.0.1",
     "body-parser": "^1.15.2",
+    "electron-mocha": "^3.1.1",
     "express": "^4.14.0",
     "google-auth-library": "^0.9.2",
     "google-protobuf": "^3.0.0",
@@ -50,7 +52,7 @@
     "poisson-process": "^0.2.1"
   },
   "engines": {
-    "node": ">=0.12.0"
+    "node": ">=1.1.0"
   },
   "binary": {
     "module_name": "grpc_node",

package.xml

@@ -10,19 +10,20 @@
   <email>grpc-packages@google.com</email>
   <active>yes</active>
  </lead>
- <date>2016-08-22</date>
+ <date>2017-01-13</date>
  <time>16:06:07</time>
  <version>
   <release>1.1.0dev</release>
   <api>1.1.0dev</api>
  </version>
  <stability>
-  <release>stable</release>
+  <release>beta</release>
-  <api>stable</api>
+  <api>beta</api>
  </stability>
  <license>BSD</license>
  <notes>
-- Reject metadata keys which are not legal #7881
+- PHP Proto3 adoption #8179
+- Various bug fixes     
  </notes>
  <contents>
   <dir baseinstalldir="/" name="/">
@@ -81,6 +82,7 @@
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_atomic.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_sync.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_windows.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/impl/codegen/gpr_slice.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/gpr_types.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/port_platform.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/slice.h" role="src" />
@@ -164,6 +166,7 @@
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_atomic.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_sync.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_windows.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/impl/codegen/gpr_slice.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/gpr_types.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/port_platform.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/slice.h" role="src" />
@@ -323,11 +326,14 @@
     <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel_factory.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/connector.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/http_connect_handshaker.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/client_channel/http_proxy.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/initial_connect_string.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_factory.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_registry.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/parse_address.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper_registry.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/resolver.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_factory.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_registry.h" role="src" />
@@ -529,11 +535,14 @@
     <file baseinstalldir="/" name="src/core/ext/client_channel/connector.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/default_initial_connect_string.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/http_connect_handshaker.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/client_channel/http_proxy.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/initial_connect_string.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_factory.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_registry.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/parse_address.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper_registry.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/resolver.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_factory.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_registry.c" role="src" />
@@ -1215,18 +1224,49 @@ Update to wrap gRPC C Core version 0.10.0
   </release>
   <release>
    <version>
-    <release>1.1.0dev</release>
+    <release>1.0.1RC1</release>
-    <api>1.1.0dev</api>
+    <api>1.0.1RC1</api>
+   </version>
+   <stability>
+    <release>beta</release>
+    <api>beta</api>
+   </stability>
+   <date>2016-10-06</date>
+   <license>BSD</license>
+   <notes>
+- Reject metadata keys which are not legal #7881
+   </notes>
+  </release>
+  <release>
+   <version>
+    <release>1.0.1</release>
+    <api>1.0.1</api>
    </version>
    <stability>
     <release>stable</release>
     <api>stable</api>
    </stability>
-   <date>2016-08-22</date>
+   <date>2016-10-27</date>
    <license>BSD</license>
    <notes>
 - Reject metadata keys which are not legal #7881
    </notes>
   </release>
+  <release>
+   <version>
+    <release>1.1.0dev</release>
+    <api>1.1.0dev</api>
+   </version>
+   <stability>
+    <release>beta</release>
+    <api>beta</api>
+   </stability>
+   <date>2017-01-13</date>
+   <license>BSD</license>
+   <notes>
+- PHP Proto3 adoption #8179
+- Various bug fixes     
+   </notes>
+  </release>
  </changelog>
 </package>

setup.cfg

@@ -11,3 +11,7 @@ inplace=1
 
 [build_package_protos]
 exclude=.*protoc_plugin/protoc_plugin_test\.proto$
+
+# Style settings
+[yapf]
+based_on_style = google

src/compiler/cpp_generator.cc

@@ -1218,6 +1218,7 @@ void PrintSourceService(Printer *printer, const Service *service,
                         std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Service"] = service->name();
 
+  if (service->method_count() > 0) {
     printer->Print(*vars,
                    "static const char* $prefix$$Service$_method_names[] = {\n");
     for (int i = 0; i < service->method_count(); ++i) {
@@ -1225,6 +1226,7 @@ void PrintSourceService(Printer *printer, const Service *service,
       printer->Print(*vars, "  \"/$Package$$Service$/$Method$\",\n");
     }
     printer->Print(*vars, "};\n\n");
+  }
 
   printer->Print(*vars,
                  "std::unique_ptr< $ns$$Service$::Stub> $ns$$Service$::NewStub("
@@ -1272,7 +1274,6 @@ void PrintSourceService(Printer *printer, const Service *service,
 
   printer->Print(*vars, "$ns$$Service$::Service::Service() {\n");
   printer->Indent();
-  printer->Print(*vars, "(void)$prefix$$Service$_method_names;\n");
   for (int i = 0; i < service->method_count(); ++i) {
     auto method = service->method(i);
     (*vars)["Idx"] = as_string(i);

src/core/ext/census/tracing.c

@@ -34,16 +34,18 @@
 //#include "src/core/ext/census/tracing.h"
 
 #include <grpc/census.h>
+#include <stdlib.h>
 
 /* TODO(aveitch): These are all placeholder implementations. */
 
-// int census_trace_mask(const census_context *context) {
+int census_trace_mask(const census_context *context) {
-//   return CENSUS_TRACE_MASK_NONE;
+  abort();
-// }
+  return CENSUS_TRACE_MASK_NONE;
+}
 
-// void census_set_trace_mask(int trace_mask) {}
+void census_set_trace_mask(int trace_mask) { abort(); }
 
-// void census_trace_print(census_context *context, uint32_t type,
+void census_trace_print(census_context *context, uint32_t type,
-//                         const char *buffer, size_t n) {}
+                        const char *buffer, size_t n) {
-
+  abort();
-// void SetTracerParams(const Params& params);
+}

src/core/ext/client_channel/client_channel.c

@@ -43,6 +43,8 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/useful.h>
 
+#include "src/core/ext/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/client_channel/http_proxy.h"
 #include "src/core/ext/client_channel/lb_policy_registry.h"
 #include "src/core/ext/client_channel/resolver_registry.h"
 #include "src/core/ext/client_channel/subchannel.h"
@@ -150,6 +152,10 @@ static void *method_parameters_create_from_json(const grpc_json *json) {
  */
 
 typedef struct client_channel_channel_data {
+  /** server name */
+  char *server_name;
+  /** HTTP CONNECT proxy to use, if any */
+  char *proxy_name;
   /** resolver for this channel */
   grpc_resolver *resolver;
   /** have we started resolving this channel */
@@ -310,6 +316,17 @@ static void on_resolver_result_changed(grpc_exec_ctx *exec_ctx, void *arg,
     // Use pick_first if nothing was specified and we didn't select grpclb
     // above.
     if (lb_policy_name == NULL) lb_policy_name = "pick_first";
+    // If using a proxy, add channel arg for server in HTTP CONNECT request.
+    if (chand->proxy_name != NULL) {
+      grpc_arg new_arg;
+      new_arg.key = GRPC_ARG_HTTP_CONNECT_SERVER;
+      new_arg.type = GRPC_ARG_STRING;
+      new_arg.value.string = chand->server_name;
+      grpc_channel_args *tmp_args = chand->resolver_result;
+      chand->resolver_result =
+          grpc_channel_args_copy_and_add(chand->resolver_result, &new_arg, 1);
+      grpc_channel_args_destroy(exec_ctx, tmp_args);
+    }
     // Instantiate LB policy.
     grpc_lb_policy_args lb_policy_args;
     lb_policy_args.args = chand->resolver_result;
@@ -528,9 +545,12 @@ static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx,
   arg = grpc_channel_args_find(args->channel_args, GRPC_ARG_SERVER_URI);
   GPR_ASSERT(arg != NULL);
   GPR_ASSERT(arg->type == GRPC_ARG_STRING);
-  chand->resolver =
+  chand->server_name = gpr_strdup(arg->value.string);
-      grpc_resolver_create(exec_ctx, arg->value.string, args->channel_args,
+  chand->proxy_name = grpc_get_http_proxy_server();
-                           chand->interested_parties);
+  char *name_to_resolve =
+      chand->proxy_name == NULL ? chand->server_name : chand->proxy_name;
+  chand->resolver = grpc_resolver_create(
+      exec_ctx, name_to_resolve, args->channel_args, chand->interested_parties);
   if (chand->resolver == NULL) {
     return GRPC_ERROR_CREATE("resolver creation failed");
   }
@@ -541,7 +561,8 @@ static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx,
 static void cc_destroy_channel_elem(grpc_exec_ctx *exec_ctx,
                                     grpc_channel_element *elem) {
   channel_data *chand = elem->channel_data;
-
+  gpr_free(chand->server_name);
+  gpr_free(chand->proxy_name);
   if (chand->resolver != NULL) {
     grpc_resolver_shutdown(exec_ctx, chand->resolver);
     GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel");

src/core/ext/client_channel/client_channel_plugin.c

@@ -40,6 +40,7 @@
 #include "src/core/ext/client_channel/client_channel.h"
 #include "src/core/ext/client_channel/http_connect_handshaker.h"
 #include "src/core/ext/client_channel/lb_policy_registry.h"
+#include "src/core/ext/client_channel/proxy_mapper_registry.h"
 #include "src/core/ext/client_channel/resolver_registry.h"
 #include "src/core/ext/client_channel/subchannel_index.h"
 #include "src/core/lib/surface/channel_init.h"
@@ -80,6 +81,7 @@ static bool set_default_host_if_unset(grpc_exec_ctx *exec_ctx,
 void grpc_client_channel_init(void) {
   grpc_lb_policy_registry_init();
   grpc_resolver_registry_init();
+  grpc_proxy_mapper_registry_init();
   grpc_subchannel_index_init();
   grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MIN,
                                    set_default_host_if_unset, NULL);
@@ -91,6 +93,7 @@ void grpc_client_channel_init(void) {
 void grpc_client_channel_shutdown(void) {
   grpc_subchannel_index_shutdown();
   grpc_channel_init_shutdown();
+  grpc_proxy_mapper_registry_shutdown();
   grpc_resolver_registry_shutdown();
   grpc_lb_policy_registry_shutdown();
 }

src/core/ext/client_channel/connector.h

@@ -48,9 +48,6 @@ struct grpc_connector {
 typedef struct {
   /** set of pollsets interested in this connection */
   grpc_pollset_set *interested_parties;
-  /** address to connect to */
-  const grpc_resolved_address *addr;
-  size_t addr_len;
   /** initial connect string to send */
   grpc_slice initial_connect_string;
   /** deadline for connection */

src/core/ext/client_channel/http_connect_handshaker.c

@@ -49,15 +49,12 @@
 #include "src/core/lib/http/parser.h"
 #include "src/core/lib/slice/slice_internal.h"
 #include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
 
 typedef struct http_connect_handshaker {
   // Base class.  Must be first.
   grpc_handshaker base;
 
-  char* proxy_server;
-  grpc_http_header* headers;
-  size_t num_headers;
-
   gpr_refcount refcount;
   gpr_mu mu;
 
@@ -91,12 +88,6 @@ static void http_connect_handshaker_unref(grpc_exec_ctx* exec_ctx,
                                          handshaker->read_buffer_to_destroy);
       gpr_free(handshaker->read_buffer_to_destroy);
     }
-    gpr_free(handshaker->proxy_server);
-    for (size_t i = 0; i < handshaker->num_headers; ++i) {
-      gpr_free(handshaker->headers[i].key);
-      gpr_free(handshaker->headers[i].value);
-    }
-    gpr_free(handshaker->headers);
     grpc_slice_buffer_destroy_internal(exec_ctx, &handshaker->write_buffer);
     grpc_http_parser_destroy(&handshaker->http_parser);
     grpc_http_response_destroy(&handshaker->http_response);
@@ -276,64 +267,88 @@ static void http_connect_handshaker_do_handshake(
     grpc_tcp_server_acceptor* acceptor, grpc_closure* on_handshake_done,
     grpc_handshaker_args* args) {
   http_connect_handshaker* handshaker = (http_connect_handshaker*)handshaker_in;
-  // Get server name from channel args.
+  // Check for HTTP CONNECT channel arg.
-  const grpc_arg* arg = grpc_channel_args_find(args->args, GRPC_ARG_SERVER_URI);
+  // If not found, invoke on_handshake_done without doing anything.
-  GPR_ASSERT(arg != NULL);
+  const grpc_arg* arg =
+      grpc_channel_args_find(args->args, GRPC_ARG_HTTP_CONNECT_SERVER);
+  if (arg == NULL) {
+    // Set shutdown to true so that subsequent calls to
+    // http_connect_handshaker_shutdown() do nothing.
+    gpr_mu_lock(&handshaker->mu);
+    handshaker->shutdown = true;
+    gpr_mu_unlock(&handshaker->mu);
+    grpc_closure_sched(exec_ctx, on_handshake_done, GRPC_ERROR_NONE);
+    return;
+  }
+  GPR_ASSERT(arg->type == GRPC_ARG_STRING);
+  char* server_name = arg->value.string;
+  // Get headers from channel args.
+  arg = grpc_channel_args_find(args->args, GRPC_ARG_HTTP_CONNECT_HEADERS);
+  grpc_http_header* headers = NULL;
+  size_t num_headers = 0;
+  char** header_strings = NULL;
+  size_t num_header_strings = 0;
+  if (arg != NULL) {
     GPR_ASSERT(arg->type == GRPC_ARG_STRING);
-  char* canonical_uri =
+    gpr_string_split(arg->value.string, "\n", &header_strings,
-      grpc_resolver_factory_add_default_prefix_if_needed(arg->value.string);
+                     &num_header_strings);
-  grpc_uri* uri = grpc_uri_parse(canonical_uri, 1);
+    headers = gpr_malloc(sizeof(grpc_http_header) * num_header_strings);
-  char* server_name = uri->path;
+    for (size_t i = 0; i < num_header_strings; ++i) {
-  if (server_name[0] == '/') ++server_name;
+      char* sep = strchr(header_strings[i], ':');
+      if (sep == NULL) {
+        gpr_log(GPR_ERROR, "skipping unparseable HTTP CONNECT header: %s",
+                header_strings[i]);
+        continue;
+      }
+      *sep = '\0';
+      headers[num_headers].key = header_strings[i];
+      headers[num_headers].value = sep + 1;
+      ++num_headers;
+    }
+  }
   // Save state in the handshaker object.
   gpr_mu_lock(&handshaker->mu);
   handshaker->args = args;
   handshaker->on_handshake_done = on_handshake_done;
-  // Send HTTP CONNECT request.
+  // Log connection via proxy.
+  char* proxy_name = grpc_endpoint_get_peer(args->endpoint);
   gpr_log(GPR_INFO, "Connecting to server %s via HTTP proxy %s", server_name,
-          handshaker->proxy_server);
+          proxy_name);
+  gpr_free(proxy_name);
+  // Construct HTTP CONNECT request.
   grpc_httpcli_request request;
   memset(&request, 0, sizeof(request));
   request.host = server_name;
   request.http.method = "CONNECT";
   request.http.path = server_name;
-  request.http.hdrs = handshaker->headers;
+  request.http.hdrs = headers;
-  request.http.hdr_count = handshaker->num_headers;
+  request.http.hdr_count = num_headers;
   request.handshaker = &grpc_httpcli_plaintext;
   grpc_slice request_slice = grpc_httpcli_format_connect_request(&request);
   grpc_slice_buffer_add(&handshaker->write_buffer, request_slice);
+  // Clean up.
+  gpr_free(headers);
+  for (size_t i = 0; i < num_header_strings; ++i) {
+    gpr_free(header_strings[i]);
+  }
+  gpr_free(header_strings);
   // Take a new ref to be held by the write callback.
   gpr_ref(&handshaker->refcount);
   grpc_endpoint_write(exec_ctx, args->endpoint, &handshaker->write_buffer,
                       &handshaker->request_done_closure);
   gpr_mu_unlock(&handshaker->mu);
-  // Clean up.
-  gpr_free(canonical_uri);
-  grpc_uri_destroy(uri);
 }
 
 static const grpc_handshaker_vtable http_connect_handshaker_vtable = {
     http_connect_handshaker_destroy, http_connect_handshaker_shutdown,
     http_connect_handshaker_do_handshake};
 
-grpc_handshaker* grpc_http_connect_handshaker_create(const char* proxy_server,
+static grpc_handshaker* grpc_http_connect_handshaker_create() {
-                                                     grpc_http_header* headers,
-                                                     size_t num_headers) {
-  GPR_ASSERT(proxy_server != NULL);
   http_connect_handshaker* handshaker = gpr_malloc(sizeof(*handshaker));
   memset(handshaker, 0, sizeof(*handshaker));
   grpc_handshaker_init(&http_connect_handshaker_vtable, &handshaker->base);
   gpr_mu_init(&handshaker->mu);
   gpr_ref_init(&handshaker->refcount, 1);
-  handshaker->proxy_server = gpr_strdup(proxy_server);
-  if (num_headers > 0) {
-    handshaker->headers = gpr_malloc(sizeof(grpc_http_header) * num_headers);
-    for (size_t i = 0; i < num_headers; ++i) {
-      handshaker->headers[i].key = gpr_strdup(headers[i].key);
-      handshaker->headers[i].value = gpr_strdup(headers[i].value);
-    }
-    handshaker->num_headers = num_headers;
-  }
   grpc_slice_buffer_init(&handshaker->write_buffer);
   grpc_closure_init(&handshaker->request_done_closure, on_write_done,
                     handshaker, grpc_schedule_on_exec_ctx);
@@ -344,30 +359,6 @@ grpc_handshaker* grpc_http_connect_handshaker_create(const char* proxy_server,
   return &handshaker->base;
 }
 
-char* grpc_get_http_proxy_server() {
-  char* uri_str = gpr_getenv("http_proxy");
-  if (uri_str == NULL) return NULL;
-  grpc_uri* uri = grpc_uri_parse(uri_str, false /* suppress_errors */);
-  char* proxy_name = NULL;
-  if (uri == NULL || uri->authority == NULL) {
-    gpr_log(GPR_ERROR, "cannot parse value of 'http_proxy' env var");
-    goto done;
-  }
-  if (strcmp(uri->scheme, "http") != 0) {
-    gpr_log(GPR_ERROR, "'%s' scheme not supported in proxy URI", uri->scheme);
-    goto done;
-  }
-  if (strchr(uri->authority, '@') != NULL) {
-    gpr_log(GPR_ERROR, "userinfo not supported in proxy URI");
-    goto done;
-  }
-  proxy_name = gpr_strdup(uri->authority);
-done:
-  gpr_free(uri_str);
-  grpc_uri_destroy(uri);
-  return proxy_name;
-}
-
 //
 // handshaker factory
 //
@@ -375,13 +366,8 @@ done:
 static void handshaker_factory_add_handshakers(
     grpc_exec_ctx* exec_ctx, grpc_handshaker_factory* factory,
     const grpc_channel_args* args, grpc_handshake_manager* handshake_mgr) {
-  char* proxy_name = grpc_get_http_proxy_server();
+  grpc_handshake_manager_add(handshake_mgr,
-  if (proxy_name != NULL) {
+                             grpc_http_connect_handshaker_create());
-    grpc_handshake_manager_add(
-        handshake_mgr,
-        grpc_http_connect_handshaker_create(proxy_name, NULL, 0));
-    gpr_free(proxy_name);
-  }
 }
 
 static void handshaker_factory_destroy(grpc_exec_ctx* exec_ctx,

src/core/ext/client_channel/http_connect_handshaker.h

@@ -34,17 +34,14 @@
 #ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
 #define GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
 
-#include "src/core/lib/channel/handshaker.h"
+/// Channel arg indicating the server in HTTP CONNECT request (string).
-#include "src/core/lib/http/parser.h"
+/// The presence of this arg triggers the use of HTTP CONNECT.
+#define GRPC_ARG_HTTP_CONNECT_SERVER "grpc.http_connect_server"
 
-/// Creates a new HTTP CONNECT handshaker.
+/// Channel arg indicating HTTP CONNECT headers (string).
-grpc_handshaker* grpc_http_connect_handshaker_create(const char* proxy_server,
+/// Multiple headers are separated by newlines.  Key/value pairs are
-                                                     grpc_http_header* headers,
+/// seperated by colons.
-                                                     size_t num_headers);
+#define GRPC_ARG_HTTP_CONNECT_HEADERS "grpc.http_connect_headers"
-
-/// Returns the name of the proxy to use, or NULL if no proxy is configured.
-/// Caller takes ownership of result.
-char* grpc_get_http_proxy_server();
 
 /// Registers handshaker factory.
 void grpc_http_connect_register_handshaker_factory();

src/core/ext/client_channel/http_proxy.c

@@ -0,0 +1,68 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/ext/client_channel/http_proxy.h"
+
+#include <stdbool.h>
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+
+#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/lib/support/env.h"
+
+char* grpc_get_http_proxy_server() {
+  char* uri_str = gpr_getenv("http_proxy");
+  if (uri_str == NULL) return NULL;
+  grpc_uri* uri = grpc_uri_parse(uri_str, false /* suppress_errors */);
+  char* proxy_name = NULL;
+  if (uri == NULL || uri->authority == NULL) {
+    gpr_log(GPR_ERROR, "cannot parse value of 'http_proxy' env var");
+    goto done;
+  }
+  if (strcmp(uri->scheme, "http") != 0) {
+    gpr_log(GPR_ERROR, "'%s' scheme not supported in proxy URI", uri->scheme);
+    goto done;
+  }
+  if (strchr(uri->authority, '@') != NULL) {
+    gpr_log(GPR_ERROR, "userinfo not supported in proxy URI");
+    goto done;
+  }
+  proxy_name = gpr_strdup(uri->authority);
+done:
+  gpr_free(uri_str);
+  grpc_uri_destroy(uri);
+  return proxy_name;
+}

src/core/ext/client_channel/http_proxy.h

@@ -31,19 +31,11 @@
  *
  */
 
-#ifndef TEST_QPS_LIMIT_CORES_H
+#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H
-#define TEST_QPS_LIMIT_CORES_H
+#define GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H
 
-namespace grpc {
+/// Returns the name of the proxy to use, or NULL if no proxy is configured.
-namespace testing {
+/// Caller takes ownership of result.
-/// LimitCores: allow this worker to only run on the cores specified in the
+char* grpc_get_http_proxy_server();
-/// array \a cores, which is of length \a cores_size.
-///
-/// LimitCores takes array and size arguments (instead of vector) for direct
-/// conversion from repeated field of protobuf. Use a cores_size of 0 to remove
-/// existing limits (from an empty repeated field)
-int LimitCores(const int *cores, int cores_size);
-}  // namespace testing
-}  // namespace grpc
 
-#endif  // TEST_QPS_LIMIT_CORES_H
+#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H */

src/core/ext/client_channel/proxy_mapper.c

@@ -0,0 +1,52 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/ext/client_channel/proxy_mapper.h"
+
+void grpc_proxy_mapper_init(const grpc_proxy_mapper_vtable* vtable,
+                            grpc_proxy_mapper* mapper) {
+  mapper->vtable = vtable;
+}
+
+bool grpc_proxy_mapper_map(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper,
+                           const grpc_resolved_address* address,
+                           const grpc_channel_args* args,
+                           grpc_resolved_address** new_address,
+                           grpc_channel_args** new_args) {
+  return mapper->vtable->map(exec_ctx, mapper, address, args, new_address,
+                             new_args);
+}
+
+void grpc_proxy_mapper_destroy(grpc_proxy_mapper* mapper) {
+  mapper->vtable->destroy(mapper);
+}

src/core/ext/client_channel/proxy_mapper.h

@@ -0,0 +1,73 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H
+#define GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H
+
+#include <stdbool.h>
+
+#include <grpc/impl/codegen/grpc_types.h>
+
+#include "src/core/lib/iomgr/resolve_address.h"
+
+typedef struct grpc_proxy_mapper grpc_proxy_mapper;
+
+typedef struct {
+  /// Determines the proxy address to use to contact \a address.
+  /// If no proxy is needed, returns false.
+  /// Otherwise, sets \a new_address, optionally sets \a new_args, and
+  /// returns true.
+  bool (*map)(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper,
+              const grpc_resolved_address* address,
+              const grpc_channel_args* args,
+              grpc_resolved_address** new_address,
+              grpc_channel_args** new_args);
+  /// Destroys \a mapper.
+  void (*destroy)(grpc_proxy_mapper* mapper);
+} grpc_proxy_mapper_vtable;
+
+struct grpc_proxy_mapper {
+  const grpc_proxy_mapper_vtable* vtable;
+};
+
+void grpc_proxy_mapper_init(const grpc_proxy_mapper_vtable* vtable,
+                            grpc_proxy_mapper* mapper);
+
+bool grpc_proxy_mapper_map(grpc_exec_ctx* exec_ctx, grpc_proxy_mapper* mapper,
+                           const grpc_resolved_address* address,
+                           const grpc_channel_args* args,
+                           grpc_resolved_address** new_address,
+                           grpc_channel_args** new_args);
+void grpc_proxy_mapper_destroy(grpc_proxy_mapper* mapper);
+
+#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H */

src/core/ext/client_channel/proxy_mapper_registry.c

@@ -0,0 +1,111 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/ext/client_channel/proxy_mapper_registry.h"
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+
+//
+// grpc_proxy_mapper_list
+//
+
+typedef struct {
+  grpc_proxy_mapper** list;
+  size_t num_mappers;
+} grpc_proxy_mapper_list;
+
+static void grpc_proxy_mapper_list_register(grpc_proxy_mapper_list* list,
+                                            bool at_start,
+                                            grpc_proxy_mapper* mapper) {
+  list->list = gpr_realloc(
+      list->list, (list->num_mappers + 1) * sizeof(grpc_proxy_mapper*));
+  if (at_start) {
+    memmove(list->list + 1, list->list,
+            sizeof(grpc_proxy_mapper*) * list->num_mappers);
+    list->list[0] = mapper;
+  } else {
+    list->list[list->num_mappers] = mapper;
+  }
+  ++list->num_mappers;
+}
+
+static bool grpc_proxy_mapper_list_map(grpc_exec_ctx* exec_ctx,
+                                       grpc_proxy_mapper_list* list,
+                                       const grpc_resolved_address* address,
+                                       const grpc_channel_args* args,
+                                       grpc_resolved_address** new_address,
+                                       grpc_channel_args** new_args) {
+  for (size_t i = 0; i < list->num_mappers; ++i) {
+    if (grpc_proxy_mapper_map(exec_ctx, list->list[i], address, args,
+                              new_address, new_args)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+static void grpc_proxy_mapper_list_destroy(grpc_proxy_mapper_list* list) {
+  for (size_t i = 0; i < list->num_mappers; ++i) {
+    grpc_proxy_mapper_destroy(list->list[i]);
+  }
+  gpr_free(list->list);
+}
+
+//
+// plugin
+//
+
+static grpc_proxy_mapper_list g_proxy_mapper_list;
+
+void grpc_proxy_mapper_registry_init() {
+  memset(&g_proxy_mapper_list, 0, sizeof(g_proxy_mapper_list));
+}
+
+void grpc_proxy_mapper_registry_shutdown() {
+  grpc_proxy_mapper_list_destroy(&g_proxy_mapper_list);
+}
+
+void grpc_proxy_mapper_register(bool at_start, grpc_proxy_mapper* mapper) {
+  grpc_proxy_mapper_list_register(&g_proxy_mapper_list, at_start, mapper);
+}
+
+bool grpc_proxy_mappers_map(grpc_exec_ctx* exec_ctx,
+                            const grpc_resolved_address* address,
+                            const grpc_channel_args* args,
+                            grpc_resolved_address** new_address,
+                            grpc_channel_args** new_args) {
+  return grpc_proxy_mapper_list_map(exec_ctx, &g_proxy_mapper_list, address,
+                                    args, new_address, new_args);
+}

src/core/ext/client_channel/proxy_mapper_registry.h

@@ -0,0 +1,53 @@
+/*
+ *
+ * Copyright 2017, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
+#define GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
+
+#include "src/core/ext/client_channel/proxy_mapper.h"
+
+void grpc_proxy_mapper_registry_init();
+void grpc_proxy_mapper_registry_shutdown();
+
+/// Registers a new proxy mapper.  Takes ownership.
+/// If \a at_start is true, the new mapper will be at the beginning of
+/// the list.  Otherwise, it will be added to the end.
+void grpc_proxy_mapper_register(bool at_start, grpc_proxy_mapper* mapper);
+
+bool grpc_proxy_mappers_map(grpc_exec_ctx* exec_ctx,
+                            const grpc_resolved_address* address,
+                            const grpc_channel_args* args,
+                            grpc_resolved_address** new_address,
+                            grpc_channel_args** new_args);
+
+#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H */

src/core/ext/client_channel/resolver_registry.h

@@ -60,7 +60,9 @@ void grpc_register_resolver_type(grpc_resolver_factory *factory);
     return it.
     If a resolver factory was not found, return NULL.
     \a args is a set of channel arguments to be included in the result
-    (typically the set of arguments passed in from the client API). */
+    (typically the set of arguments passed in from the client API).
+    \a pollset_set is used to drive IO in the name resolution process, it
+    should not be NULL. */
 grpc_resolver *grpc_resolver_create(grpc_exec_ctx *exec_ctx, const char *target,
                                     const grpc_channel_args *args,
                                     grpc_pollset_set *pollset_set);

src/core/ext/client_channel/subchannel.c

@@ -38,12 +38,17 @@
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/avl.h>
+#include <grpc/support/string_util.h>
 
 #include "src/core/ext/client_channel/client_channel.h"
 #include "src/core/ext/client_channel/initial_connect_string.h"
+#include "src/core/ext/client_channel/parse_address.h"
+#include "src/core/ext/client_channel/proxy_mapper_registry.h"
 #include "src/core/ext/client_channel/subchannel_index.h"
+#include "src/core/ext/client_channel/uri_parser.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/core/lib/iomgr/timer.h"
 #include "src/core/lib/profiling/timers.h"
 #include "src/core/lib/slice/slice_internal.h"
@@ -95,8 +100,6 @@ struct grpc_subchannel {
   size_t num_filters;
   /** channel arguments */
   grpc_channel_args *args;
-  /** address to connect to */
-  grpc_resolved_address *addr;
 
   grpc_subchannel_key *key;
 
@@ -211,7 +214,6 @@ static void subchannel_destroy(grpc_exec_ctx *exec_ctx, void *arg,
   grpc_subchannel *c = arg;
   gpr_free((void *)c->filters);
   grpc_channel_args_destroy(exec_ctx, c->args);
-  gpr_free(c->addr);
   grpc_slice_unref_internal(exec_ctx, c->initial_connect_string);
   grpc_connectivity_state_destroy(exec_ctx, &c->state_tracker);
   grpc_connector_unref(exec_ctx, c->connector);
@@ -327,12 +329,28 @@ grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx,
   } else {
     c->filters = NULL;
   }
-  c->addr = gpr_malloc(sizeof(grpc_resolved_address));
-  if (args->addr->len)
-    memcpy(c->addr, args->addr, sizeof(grpc_resolved_address));
   c->pollset_set = grpc_pollset_set_create();
-  grpc_set_initial_connect_string(&c->addr, &c->initial_connect_string);
+  grpc_resolved_address *addr = gpr_malloc(sizeof(*addr));
-  c->args = grpc_channel_args_copy(args->args);
+  grpc_get_subchannel_address_arg(args->args, addr);
+  grpc_set_initial_connect_string(&addr, &c->initial_connect_string);
+  grpc_resolved_address *new_address = NULL;
+  grpc_channel_args *new_args = NULL;
+  if (grpc_proxy_mappers_map(exec_ctx, addr, args->args, &new_address,
+                             &new_args)) {
+    GPR_ASSERT(new_address != NULL);
+    gpr_free(addr);
+    addr = new_address;
+    if (new_args != NULL) c->args = new_args;
+  }
+  if (c->args == NULL) {
+    static const char *keys_to_remove[] = {GRPC_ARG_SUBCHANNEL_ADDRESS};
+    grpc_arg new_arg = grpc_create_subchannel_address_arg(addr);
+    c->args = grpc_channel_args_copy_and_add_and_remove(
+        args->args, keys_to_remove, GPR_ARRAY_SIZE(keys_to_remove), &new_arg,
+        1);
+    gpr_free(new_arg.value.string);
+  }
+  gpr_free(addr);
   c->root_external_state_watcher.next = c->root_external_state_watcher.prev =
       &c->root_external_state_watcher;
   grpc_closure_init(&c->connected, subchannel_connected, c,
@@ -385,7 +403,6 @@ static void continue_connect_locked(grpc_exec_ctx *exec_ctx,
   grpc_connect_in_args args;
 
   args.interested_parties = c->pollset_set;
-  args.addr = c->addr;
   args.deadline = c->next_attempt;
   args.channel_args = c->args;
   args.initial_connect_string = c->initial_connect_string;
@@ -771,3 +788,37 @@ grpc_call_stack *grpc_subchannel_call_get_call_stack(
     grpc_subchannel_call *subchannel_call) {
   return SUBCHANNEL_CALL_TO_CALL_STACK(subchannel_call);
 }
+
+static void grpc_uri_to_sockaddr(char *uri_str, grpc_resolved_address *addr) {
+  grpc_uri *uri = grpc_uri_parse(uri_str, 0 /* suppress_errors */);
+  GPR_ASSERT(uri != NULL);
+  if (strcmp(uri->scheme, "ipv4") == 0) {
+    GPR_ASSERT(parse_ipv4(uri, addr));
+  } else if (strcmp(uri->scheme, "ipv6") == 0) {
+    GPR_ASSERT(parse_ipv6(uri, addr));
+  } else {
+    GPR_ASSERT(parse_unix(uri, addr));
+  }
+  grpc_uri_destroy(uri);
+}
+
+void grpc_get_subchannel_address_arg(const grpc_channel_args *args,
+                                     grpc_resolved_address *addr) {
+  const grpc_arg *addr_arg =
+      grpc_channel_args_find(args, GRPC_ARG_SUBCHANNEL_ADDRESS);
+  GPR_ASSERT(addr_arg != NULL);  // Should have been set by LB policy.
+  GPR_ASSERT(addr_arg->type == GRPC_ARG_STRING);
+  memset(addr, 0, sizeof(*addr));
+  if (*addr_arg->value.string != '\0') {
+    grpc_uri_to_sockaddr(addr_arg->value.string, addr);
+  }
+}
+
+grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address *addr) {
+  grpc_arg new_arg;
+  new_arg.key = GRPC_ARG_SUBCHANNEL_ADDRESS;
+  new_arg.type = GRPC_ARG_STRING;
+  new_arg.value.string =
+      addr->len > 0 ? grpc_sockaddr_to_uri(addr) : gpr_strdup("");
+  return new_arg;
+}

src/core/ext/client_channel/subchannel.h

@@ -40,6 +40,9 @@
 #include "src/core/lib/transport/connectivity_state.h"
 #include "src/core/lib/transport/metadata.h"
 
+// Channel arg containing a grpc_resolved_address to connect to.
+#define GRPC_ARG_SUBCHANNEL_ADDRESS "grpc.subchannel_address"
+
 /** A (sub-)channel that knows how to connect to exactly one target
     address. Provides a target for load balancing. */
 typedef struct grpc_subchannel grpc_subchannel;
@@ -164,8 +167,6 @@ struct grpc_subchannel_args {
   size_t filter_count;
   /** Channel arguments to be supplied to the newly created channel */
   const grpc_channel_args *args;
-  /** Address to connect to */
-  grpc_resolved_address *addr;
 };
 
 /** create a subchannel given a connector */
@@ -173,4 +174,12 @@ grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx,
                                         grpc_connector *connector,
                                         const grpc_subchannel_args *args);
 
+/// Sets \a addr from \a args.
+void grpc_get_subchannel_address_arg(const grpc_channel_args *args,
+                                     grpc_resolved_address *addr);
+
+/// Returns a new channel arg encoding the subchannel address as a string.
+/// Caller is responsible for freeing the string.
+grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address *addr);
+
 #endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_H */

src/core/ext/client_channel/subchannel_index.c

@@ -86,11 +86,6 @@ static grpc_subchannel_key *create_key(
   } else {
     k->args.filters = NULL;
   }
-  k->args.addr = gpr_malloc(sizeof(grpc_resolved_address));
-  k->args.addr->len = args->addr->len;
-  if (k->args.addr->len > 0) {
-    memcpy(k->args.addr, args->addr, sizeof(grpc_resolved_address));
-  }
   k->args.args = copy_channel_args(args->args);
   return k;
 }
@@ -108,14 +103,8 @@ static int subchannel_key_compare(grpc_subchannel_key *a,
                                   grpc_subchannel_key *b) {
   int c = GPR_ICMP(a->connector, b->connector);
   if (c != 0) return c;
-  c = GPR_ICMP(a->args.addr->len, b->args.addr->len);
-  if (c != 0) return c;
   c = GPR_ICMP(a->args.filter_count, b->args.filter_count);
   if (c != 0) return c;
-  if (a->args.addr->len) {
-    c = memcmp(a->args.addr->addr, b->args.addr->addr, a->args.addr->len);
-    if (c != 0) return c;
-  }
   if (a->args.filter_count > 0) {
     c = memcmp(a->args.filters, b->args.filters,
                a->args.filter_count * sizeof(*a->args.filters));
@@ -129,7 +118,6 @@ void grpc_subchannel_key_destroy(grpc_exec_ctx *exec_ctx,
   grpc_connector_unref(exec_ctx, k->connector);
   gpr_free((grpc_channel_args *)k->args.filters);
   grpc_channel_args_destroy(exec_ctx, (grpc_channel_args *)k->args.args);
-  gpr_free(k->args.addr);
   gpr_free(k);
 }
 

src/core/ext/lb_policy/grpclb/grpclb.c

@@ -1178,14 +1178,15 @@ static void query_for_backends_locked(grpc_exec_ctx *exec_ctx,
   op++;
 
   op->op = GRPC_OP_RECV_INITIAL_METADATA;
-  op->data.recv_initial_metadata = &glb_policy->lb_initial_metadata_recv;
+  op->data.recv_initial_metadata.recv_initial_metadata =
+      &glb_policy->lb_initial_metadata_recv;
   op->flags = 0;
   op->reserved = NULL;
   op++;
 
   GPR_ASSERT(glb_policy->lb_request_payload != NULL);
   op->op = GRPC_OP_SEND_MESSAGE;
-  op->data.send_message = glb_policy->lb_request_payload;
+  op->data.send_message.send_message = glb_policy->lb_request_payload;
   op->flags = 0;
   op->reserved = NULL;
   op++;
@@ -1211,7 +1212,7 @@ static void query_for_backends_locked(grpc_exec_ctx *exec_ctx,
 
   op = ops;
   op->op = GRPC_OP_RECV_MESSAGE;
-  op->data.recv_message = &glb_policy->lb_response_payload;
+  op->data.recv_message.recv_message = &glb_policy->lb_response_payload;
   op->flags = 0;
   op->reserved = NULL;
   op++;
@@ -1293,7 +1294,7 @@ static void lb_on_response_received(grpc_exec_ctx *exec_ctx, void *arg,
     if (!glb_policy->shutting_down) {
       /* keep listening for serverlist updates */
       op->op = GRPC_OP_RECV_MESSAGE;
-      op->data.recv_message = &glb_policy->lb_response_payload;
+      op->data.recv_message.recv_message = &glb_policy->lb_response_payload;
       op->flags = 0;
       op->reserved = NULL;
       op++;

src/core/ext/lb_policy/pick_first/pick_first.c

@@ -36,7 +36,9 @@
 #include <grpc/support/alloc.h>
 
 #include "src/core/ext/client_channel/lb_policy_registry.h"
+#include "src/core/ext/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/core/lib/transport/connectivity_state.h"
 
 typedef struct pending_pick {
@@ -466,11 +468,15 @@ static grpc_lb_policy *create_pick_first(grpc_exec_ctx *exec_ctx,
     }
 
     memset(&sc_args, 0, sizeof(grpc_subchannel_args));
-    sc_args.addr = &addresses->addresses[i].address;
+    grpc_arg addr_arg =
-    sc_args.args = args->args;
+        grpc_create_subchannel_address_arg(&addresses->addresses[i].address);
-
+    grpc_channel_args *new_args =
+        grpc_channel_args_copy_and_add(args->args, &addr_arg, 1);
+    gpr_free(addr_arg.value.string);
+    sc_args.args = new_args;
     grpc_subchannel *subchannel = grpc_client_channel_factory_create_subchannel(
         exec_ctx, args->client_channel_factory, &sc_args);
+    grpc_channel_args_destroy(exec_ctx, new_args);
 
     if (subchannel != NULL) {
       p->subchannels[subchannel_idx++] = subchannel;

src/core/ext/lb_policy/round_robin/round_robin.c

@@ -64,8 +64,10 @@
 #include <grpc/support/alloc.h>
 
 #include "src/core/ext/client_channel/lb_policy_registry.h"
+#include "src/core/ext/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/debug/trace.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/core/lib/transport/connectivity_state.h"
 #include "src/core/lib/transport/static_metadata.h"
 
@@ -729,11 +731,15 @@ static grpc_lb_policy *round_robin_create(grpc_exec_ctx *exec_ctx,
     if (addresses->addresses[i].is_balancer) continue;
 
     memset(&sc_args, 0, sizeof(grpc_subchannel_args));
-    sc_args.addr = &addresses->addresses[i].address;
+    grpc_arg addr_arg =
-    sc_args.args = args->args;
+        grpc_create_subchannel_address_arg(&addresses->addresses[i].address);
-
+    grpc_channel_args *new_args =
+        grpc_channel_args_copy_and_add(args->args, &addr_arg, 1);
+    gpr_free(addr_arg.value.string);
+    sc_args.args = new_args;
     grpc_subchannel *subchannel = grpc_client_channel_factory_create_subchannel(
         exec_ctx, args->client_channel_factory, &sc_args);
+    grpc_channel_args_destroy(exec_ctx, new_args);
 
     if (subchannel != NULL) {
       subchannel_data *sd = gpr_malloc(sizeof(*sd));

src/core/ext/resolver/dns/native/dns_resolver.c

@@ -37,7 +37,6 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
 #include "src/core/ext/client_channel/lb_policy_registry.h"
 #include "src/core/ext/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
@@ -189,7 +188,7 @@ static void dns_on_resolved(grpc_exec_ctx *exec_ctx, void *arg,
     gpr_timespec next_try = gpr_backoff_step(&r->backoff_state, now);
     gpr_timespec timeout = gpr_time_sub(next_try, now);
     const char *msg = grpc_error_string(error);
-    gpr_log(GPR_DEBUG, "dns resolution failed: %s", msg);
+    gpr_log(GPR_INFO, "dns resolution failed (will retry): %s", msg);
     grpc_error_free_string(msg);
     GPR_ASSERT(!r->have_retry_timer);
     r->have_retry_timer = true;
@@ -261,16 +260,14 @@ static grpc_resolver *dns_create(grpc_exec_ctx *exec_ctx,
     return NULL;
   }
   // Get name from args.
-  const char *path = args->uri->path;
+  char *path = args->uri->path;
   if (path[0] == '/') ++path;
-  // Get proxy name, if any.
-  char *proxy_name = grpc_get_http_proxy_server();
   // Create resolver.
   dns_resolver *r = gpr_malloc(sizeof(dns_resolver));
   memset(r, 0, sizeof(*r));
   gpr_mu_init(&r->mu);
   grpc_resolver_init(&r->base, &dns_resolver_vtable);
-  r->name_to_resolve = proxy_name == NULL ? gpr_strdup(path) : proxy_name;
+  r->name_to_resolve = gpr_strdup(path);
   r->default_port = gpr_strdup(default_port);
   r->channel_args = grpc_channel_args_copy(args->args);
   r->interested_parties = grpc_pollset_set_create();

src/core/ext/transport/chttp2/client/chttp2_connector.c

@@ -43,6 +43,7 @@
 
 #include "src/core/ext/client_channel/connector.h"
 #include "src/core/ext/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/client_channel/subchannel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/handshaker.h"
@@ -220,6 +221,8 @@ static void chttp2_connector_connect(grpc_exec_ctx *exec_ctx,
                                      grpc_connect_out_args *result,
                                      grpc_closure *notify) {
   chttp2_connector *c = (chttp2_connector *)con;
+  grpc_resolved_address addr;
+  grpc_get_subchannel_address_arg(args->channel_args, &addr);
   gpr_mu_lock(&c->mu);
   GPR_ASSERT(c->notify == NULL);
   c->notify = notify;
@@ -231,8 +234,8 @@ static void chttp2_connector_connect(grpc_exec_ctx *exec_ctx,
   GPR_ASSERT(!c->connecting);
   c->connecting = true;
   grpc_tcp_client_connect(exec_ctx, &c->connected, &c->endpoint,
-                          args->interested_parties, args->channel_args,
+                          args->interested_parties, args->channel_args, &addr,
-                          args->addr, args->deadline);
+                          args->deadline);
   gpr_mu_unlock(&c->mu);
 }
 

src/core/ext/transport/chttp2/transport/chttp2_transport.c

@@ -62,7 +62,7 @@
 #define DEFAULT_WINDOW 65535
 #define DEFAULT_CONNECTION_WINDOW_TARGET (1024 * 1024)
 #define MAX_WINDOW 0x7fffffffu
-
+#define MAX_WRITE_BUFFER_SIZE (64 * 1024 * 1024)
 #define DEFAULT_MAX_HEADER_LIST_SIZE (16 * 1024)
 
 #define MAX_CLIENT_STREAM_ID 0x7fffffffu
@@ -271,6 +271,7 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
      window -- this should by rights be 0 */
   t->force_send_settings = 1 << GRPC_CHTTP2_SETTINGS_INITIAL_WINDOW_SIZE;
   t->sent_local_settings = 0;
+  t->write_buffer_size = DEFAULT_WINDOW;
 
   if (is_client) {
     grpc_slice_buffer_add(&t->outbuf, grpc_slice_from_copied_string(
@@ -321,6 +322,11 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
           grpc_chttp2_hpack_compressor_set_max_usable_size(&t->hpack_compressor,
                                                            (uint32_t)value);
         }
+      } else if (0 == strcmp(channel_args->args[i].key,
+                             GRPC_ARG_HTTP2_WRITE_BUFFER_SIZE)) {
+        t->write_buffer_size = (uint32_t)grpc_channel_arg_get_integer(
+            &channel_args->args[i],
+            (grpc_integer_options){0, 0, MAX_WRITE_BUFFER_SIZE});
       } else {
         static const struct {
           const char *channel_arg_name;
@@ -899,15 +905,22 @@ static bool contains_non_ok_status(grpc_metadata_batch *batch) {
   return false;
 }
 
+static void maybe_become_writable_due_to_send_msg(grpc_exec_ctx *exec_ctx,
+                                                  grpc_chttp2_transport *t,
+                                                  grpc_chttp2_stream *s) {
+  if (s->id != 0 && (!s->write_buffering ||
+                     s->flow_controlled_buffer.length > t->write_buffer_size)) {
+    grpc_chttp2_become_writable(exec_ctx, t, s, true, "op.send_message");
+  }
+}
+
 static void add_fetched_slice_locked(grpc_exec_ctx *exec_ctx,
                                      grpc_chttp2_transport *t,
                                      grpc_chttp2_stream *s) {
   s->fetched_send_message_length +=
       (uint32_t)GRPC_SLICE_LENGTH(s->fetching_slice);
   grpc_slice_buffer_add(&s->flow_controlled_buffer, s->fetching_slice);
-  if (s->id != 0) {
+  maybe_become_writable_due_to_send_msg(exec_ctx, t, s);
-    grpc_chttp2_become_writable(exec_ctx, t, s, true, "op.send_message");
-  }
 }
 
 static void continue_fetching_send_locked(grpc_exec_ctx *exec_ctx,
@@ -1100,14 +1113,13 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op,
                                    (int64_t)len;
       s->complete_fetch_covered_by_poller = op->covered_by_poller;
       if (flags & GRPC_WRITE_BUFFER_HINT) {
-        /* allow up to 64kb to be buffered */
+        s->next_message_end_offset -= t->write_buffer_size;
-        /* TODO(ctiller): make this configurable */
+        s->write_buffering = true;
-        s->next_message_end_offset -= 65536;
+      } else {
+        s->write_buffering = false;
       }
       continue_fetching_send_locked(exec_ctx, t, s);
-      if (s->id != 0) {
+      maybe_become_writable_due_to_send_msg(exec_ctx, t, s);
-        grpc_chttp2_become_writable(exec_ctx, t, s, true, "op.send_message");
-      }
     }
   }
 
@@ -1116,6 +1128,7 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op,
     on_complete->next_data.scratch |= CLOSURE_BARRIER_MAY_COVER_WRITE;
     s->send_trailing_metadata_finished = add_closure_barrier(on_complete);
     s->send_trailing_metadata = op->send_trailing_metadata;
+    s->write_buffering = false;
     const size_t metadata_size =
         grpc_metadata_batch_size(op->send_trailing_metadata);
     const size_t metadata_peer_limit =

src/core/ext/transport/chttp2/transport/frame_rst_stream.c

@@ -109,7 +109,7 @@ grpc_error *grpc_chttp2_rst_stream_parser_parse(grpc_exec_ctx *exec_ctx,
                       (((uint32_t)p->reason_bytes[2]) << 8) |
                       (((uint32_t)p->reason_bytes[3]));
     grpc_error *error = GRPC_ERROR_NONE;
-    if (reason != GRPC_CHTTP2_NO_ERROR) {
+    if (reason != GRPC_CHTTP2_NO_ERROR || s->header_frames_received < 2) {
       error = grpc_error_set_int(GRPC_ERROR_CREATE("RST_STREAM"),
                                  GRPC_ERROR_INT_HTTP2_ERROR, (intptr_t)reason);
       grpc_status_code status_code = grpc_chttp2_http2_error_to_grpc_status(

src/core/ext/transport/chttp2/transport/internal.h

@@ -249,6 +249,9 @@ struct grpc_chttp2_transport {
   int64_t announce_incoming_window;
   /** how much window would we like to have for incoming_window */
   uint32_t connection_window_target;
+  /** how much data are we willing to buffer when the WRITE_BUFFER_HINT is set?
+   */
+  uint32_t write_buffer_size;
 
   /** have we seen a goaway */
   uint8_t seen_goaway;
@@ -403,6 +406,9 @@ struct grpc_chttp2_stream {
   /** Has this stream seen an error.
       If true, then pending incoming frames can be thrown away. */
   bool seen_error;
+  /** Are we buffering writes on this stream? If yes, we won't become writable
+      until there's enough queued up in the flow_controlled_buffer */
+  bool write_buffering;
 
   /** the error that resulted in this stream being read-closed */
   grpc_error *read_closed_error;

src/core/ext/transport/chttp2/transport/writing.c

@@ -74,6 +74,15 @@ static void update_list(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
   GRPC_ERROR_UNREF(error);
 }
 
+static bool stream_ref_if_not_destroyed(gpr_refcount *r) {
+  gpr_atm count;
+  do {
+    count = gpr_atm_acq_load(&r->count);
+    if (count == 0) return false;
+  } while (!gpr_atm_rel_cas(&r->count, count, count + 1));
+  return true;
+}
+
 bool grpc_chttp2_begin_write(grpc_exec_ctx *exec_ctx,
                              grpc_chttp2_transport *t) {
   grpc_chttp2_stream *s;
@@ -101,10 +110,13 @@ bool grpc_chttp2_begin_write(grpc_exec_ctx *exec_ctx,
 
   if (t->outgoing_window > 0) {
     while (grpc_chttp2_list_pop_stalled_by_transport(t, &s)) {
-      grpc_chttp2_become_writable(exec_ctx, t, s, false,
+      if (!t->closed && grpc_chttp2_list_add_writable_stream(t, s) &&
+          stream_ref_if_not_destroyed(&s->refcount->refs)) {
+        grpc_chttp2_initiate_write(exec_ctx, t, false,
                                    "transport.read_flow_control");
       }
     }
+  }
 
   /* for each grpc_chttp2_stream that's become writable, frame it's data
      (according to available window sizes) and add to the output buffer */

src/core/ext/transport/cronet/client/secure/cronet_channel_create.c

@@ -60,7 +60,7 @@ GRPCAPI grpc_channel *grpc_cronet_secure_channel_create(
   ct->host = gpr_malloc(strlen(target) + 1);
   strcpy(ct->host, target);
   gpr_log(GPR_DEBUG,
-          "grpc_create_cronet_transport: cronet_engine = %p, target=%s", engine,
+          "grpc_create_cronet_transport: stream_engine = %p, target=%s", engine,
           ct->host);
 
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;

src/core/ext/transport/cronet/transport/cronet_api_dummy.c

@@ -38,48 +38,46 @@ library, so we can build it in all environments */
 
 #include <grpc/support/log.h>
 
-#include "third_party/objective_c/Cronet/cronet_c_for_grpc.h"
+#include "third_party/Cronet/bidirectional_stream_c.h"
 
 #ifdef GRPC_COMPILE_WITH_CRONET
 /* link with the real CRONET library in the build system */
 #else
 /* Dummy implementation of cronet API just to test for build-ability */
-cronet_bidirectional_stream* cronet_bidirectional_stream_create(
+bidirectional_stream* bidirectional_stream_create(
-    cronet_engine* engine, void* annotation,
+    stream_engine* engine, void* annotation,
-    cronet_bidirectional_stream_callback* callback) {
+    bidirectional_stream_callback* callback) {
   GPR_ASSERT(0);
   return NULL;
 }
 
-int cronet_bidirectional_stream_destroy(cronet_bidirectional_stream* stream) {
+int bidirectional_stream_destroy(bidirectional_stream* stream) {
   GPR_ASSERT(0);
   return 0;
 }
 
-int cronet_bidirectional_stream_start(
+int bidirectional_stream_start(bidirectional_stream* stream, const char* url,
-    cronet_bidirectional_stream* stream, const char* url, int priority,
+                               int priority, const char* method,
-    const char* method, const cronet_bidirectional_stream_header_array* headers,
+                               const bidirectional_stream_header_array* headers,
                                bool end_of_stream) {
   GPR_ASSERT(0);
   return 0;
 }
 
-int cronet_bidirectional_stream_read(cronet_bidirectional_stream* stream,
+int bidirectional_stream_read(bidirectional_stream* stream, char* buffer,
-                                     char* buffer, int capacity) {
+                              int capacity) {
   GPR_ASSERT(0);
   return 0;
 }
 
-int cronet_bidirectional_stream_write(cronet_bidirectional_stream* stream,
+int bidirectional_stream_write(bidirectional_stream* stream, const char* buffer,
-                                      const char* buffer, int count,
+                               int count, bool end_of_stream) {
-                                      bool end_of_stream) {
   GPR_ASSERT(0);
   return 0;
 }
 
-int cronet_bidirectional_stream_cancel(cronet_bidirectional_stream* stream) {
+void bidirectional_stream_cancel(bidirectional_stream* stream) {
   GPR_ASSERT(0);
-  return 0;
 }
 
 #endif /* GRPC_COMPILE_WITH_CRONET */

src/core/ext/transport/cronet/transport/cronet_transport.c

@@ -49,7 +49,7 @@
 #include "src/core/lib/transport/metadata_batch.h"
 #include "src/core/lib/transport/static_metadata.h"
 #include "src/core/lib/transport/transport_impl.h"
-#include "third_party/objective_c/Cronet/cronet_c_for_grpc.h"
+#include "third_party/Cronet/bidirectional_stream_c.h"
 
 #define GRPC_HEADER_SIZE_IN_BYTES 5
 
@@ -86,19 +86,18 @@ enum e_op_id {
 
 /* Cronet callbacks. See cronet_c_for_grpc.h for documentation for each. */
 
-static void on_request_headers_sent(cronet_bidirectional_stream *);
+static void on_request_headers_sent(bidirectional_stream *);
 static void on_response_headers_received(
-    cronet_bidirectional_stream *,
+    bidirectional_stream *, const bidirectional_stream_header_array *,
-    const cronet_bidirectional_stream_header_array *, const char *);
+    const char *);
-static void on_write_completed(cronet_bidirectional_stream *, const char *);
+static void on_write_completed(bidirectional_stream *, const char *);
-static void on_read_completed(cronet_bidirectional_stream *, char *, int);
+static void on_read_completed(bidirectional_stream *, char *, int);
 static void on_response_trailers_received(
-    cronet_bidirectional_stream *,
+    bidirectional_stream *, const bidirectional_stream_header_array *);
-    const cronet_bidirectional_stream_header_array *);
+static void on_succeeded(bidirectional_stream *);
-static void on_succeeded(cronet_bidirectional_stream *);
+static void on_failed(bidirectional_stream *, int);
-static void on_failed(cronet_bidirectional_stream *, int);
+static void on_canceled(bidirectional_stream *);
-static void on_canceled(cronet_bidirectional_stream *);
+static bidirectional_stream_callback cronet_callbacks = {
-static cronet_bidirectional_stream_callback cronet_callbacks = {
     on_request_headers_sent,
     on_response_headers_received,
     on_read_completed,
@@ -111,7 +110,7 @@ static cronet_bidirectional_stream_callback cronet_callbacks = {
 /* Cronet transport object */
 struct grpc_cronet_transport {
   grpc_transport base; /* must be first element in this structure */
-  cronet_engine *engine;
+  stream_engine *engine;
   char *host;
 };
 typedef struct grpc_cronet_transport grpc_cronet_transport;
@@ -176,8 +175,8 @@ struct stream_obj {
   grpc_transport_stream_op *curr_op;
   grpc_cronet_transport curr_ct;
   grpc_stream *curr_gs;
-  cronet_bidirectional_stream *cbs;
+  bidirectional_stream *cbs;
-  cronet_bidirectional_stream_header_array header_array;
+  bidirectional_stream_header_array header_array;
 
   /* Stream level state. Some state will be tracked both at stream and stream_op
    * level */
@@ -344,11 +343,11 @@ static void execute_from_storage(stream_obj *s) {
 /*
   Cronet callback
 */
-static void on_failed(cronet_bidirectional_stream *stream, int net_error) {
+static void on_failed(bidirectional_stream *stream, int net_error) {
   CRONET_LOG(GPR_DEBUG, "on_failed(%p, %d)", stream, net_error);
   stream_obj *s = (stream_obj *)stream->annotation;
   gpr_mu_lock(&s->mu);
-  cronet_bidirectional_stream_destroy(s->cbs);
+  bidirectional_stream_destroy(s->cbs);
   s->state.state_callback_received[OP_FAILED] = true;
   s->cbs = NULL;
   if (s->header_array.headers) {
@@ -367,11 +366,11 @@ static void on_failed(cronet_bidirectional_stream *stream, int net_error) {
 /*
   Cronet callback
 */
-static void on_canceled(cronet_bidirectional_stream *stream) {
+static void on_canceled(bidirectional_stream *stream) {
   CRONET_LOG(GPR_DEBUG, "on_canceled(%p)", stream);
   stream_obj *s = (stream_obj *)stream->annotation;
   gpr_mu_lock(&s->mu);
-  cronet_bidirectional_stream_destroy(s->cbs);
+  bidirectional_stream_destroy(s->cbs);
   s->state.state_callback_received[OP_CANCELED] = true;
   s->cbs = NULL;
   if (s->header_array.headers) {
@@ -390,11 +389,11 @@ static void on_canceled(cronet_bidirectional_stream *stream) {
 /*
   Cronet callback
 */
-static void on_succeeded(cronet_bidirectional_stream *stream) {
+static void on_succeeded(bidirectional_stream *stream) {
   CRONET_LOG(GPR_DEBUG, "on_succeeded(%p)", stream);
   stream_obj *s = (stream_obj *)stream->annotation;
   gpr_mu_lock(&s->mu);
-  cronet_bidirectional_stream_destroy(s->cbs);
+  bidirectional_stream_destroy(s->cbs);
   s->state.state_callback_received[OP_SUCCEEDED] = true;
   s->cbs = NULL;
   free_read_buffer(s);
@@ -405,7 +404,7 @@ static void on_succeeded(cronet_bidirectional_stream *stream) {
 /*
   Cronet callback
 */
-static void on_request_headers_sent(cronet_bidirectional_stream *stream) {
+static void on_request_headers_sent(bidirectional_stream *stream) {
   CRONET_LOG(GPR_DEBUG, "W: on_request_headers_sent(%p)", stream);
   stream_obj *s = (stream_obj *)stream->annotation;
   gpr_mu_lock(&s->mu);
@@ -424,8 +423,8 @@ static void on_request_headers_sent(cronet_bidirectional_stream *stream) {
   Cronet callback
 */
 static void on_response_headers_received(
-    cronet_bidirectional_stream *stream,
+    bidirectional_stream *stream,
-    const cronet_bidirectional_stream_header_array *headers,
+    const bidirectional_stream_header_array *headers,
     const char *negotiated_protocol) {
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   CRONET_LOG(GPR_DEBUG, "R: on_response_headers_received(%p, %p, %s)", stream,
@@ -451,8 +450,8 @@ static void on_response_headers_received(
     s->state.rs.read_buffer = s->state.rs.grpc_header_bytes;
     s->state.rs.received_bytes = 0;
     s->state.rs.remaining_bytes = GRPC_HEADER_SIZE_IN_BYTES;
-    CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_read(%p)", s->cbs);
+    CRONET_LOG(GPR_DEBUG, "bidirectional_stream_read(%p)", s->cbs);
-    cronet_bidirectional_stream_read(s->cbs, s->state.rs.read_buffer,
+    bidirectional_stream_read(s->cbs, s->state.rs.read_buffer,
                               s->state.rs.remaining_bytes);
   }
   gpr_mu_unlock(&s->mu);
@@ -463,8 +462,7 @@ static void on_response_headers_received(
 /*
   Cronet callback
 */
-static void on_write_completed(cronet_bidirectional_stream *stream,
+static void on_write_completed(bidirectional_stream *stream, const char *data) {
-                               const char *data) {
   stream_obj *s = (stream_obj *)stream->annotation;
   CRONET_LOG(GPR_DEBUG, "W: on_write_completed(%p, %s)", stream, data);
   gpr_mu_lock(&s->mu);
@@ -480,7 +478,7 @@ static void on_write_completed(cronet_bidirectional_stream *stream,
 /*
   Cronet callback
 */
-static void on_read_completed(cronet_bidirectional_stream *stream, char *data,
+static void on_read_completed(bidirectional_stream *stream, char *data,
                               int count) {
   stream_obj *s = (stream_obj *)stream->annotation;
   CRONET_LOG(GPR_DEBUG, "R: on_read_completed(%p, %p, %d)", stream, data,
@@ -488,16 +486,16 @@ static void on_read_completed(cronet_bidirectional_stream *stream, char *data,
   gpr_mu_lock(&s->mu);
   s->state.state_callback_received[OP_RECV_MESSAGE] = true;
   if (count > 0 && s->state.flush_read) {
-    CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_read(%p)", s->cbs);
+    CRONET_LOG(GPR_DEBUG, "bidirectional_stream_read(%p)", s->cbs);
-    cronet_bidirectional_stream_read(s->cbs, s->state.rs.read_buffer, 4096);
+    bidirectional_stream_read(s->cbs, s->state.rs.read_buffer, 4096);
     gpr_mu_unlock(&s->mu);
   } else if (count > 0) {
     s->state.rs.received_bytes += count;
     s->state.rs.remaining_bytes -= count;
     if (s->state.rs.remaining_bytes > 0) {
-      CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_read(%p)", s->cbs);
+      CRONET_LOG(GPR_DEBUG, "bidirectional_stream_read(%p)", s->cbs);
       s->state.state_op_done[OP_READ_REQ_MADE] = true;
-      cronet_bidirectional_stream_read(
+      bidirectional_stream_read(
           s->cbs, s->state.rs.read_buffer + s->state.rs.received_bytes,
           s->state.rs.remaining_bytes);
       gpr_mu_unlock(&s->mu);
@@ -520,8 +518,8 @@ static void on_read_completed(cronet_bidirectional_stream *stream, char *data,
   Cronet callback
 */
 static void on_response_trailers_received(
-    cronet_bidirectional_stream *stream,
+    bidirectional_stream *stream,
-    const cronet_bidirectional_stream_header_array *trailers) {
+    const bidirectional_stream_header_array *trailers) {
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   CRONET_LOG(GPR_DEBUG, "R: on_response_trailers_received(%p,%p)", stream,
              trailers);
@@ -551,9 +549,9 @@ static void on_response_trailers_received(
   if (!s->state.state_op_done[OP_SEND_TRAILING_METADATA] &&
       !(s->state.state_op_done[OP_CANCEL_ERROR] ||
         s->state.state_callback_received[OP_FAILED])) {
-    CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_write (%p, 0)", s->cbs);
+    CRONET_LOG(GPR_DEBUG, "bidirectional_stream_write (%p, 0)", s->cbs);
     s->state.state_callback_received[OP_SEND_MESSAGE] = false;
-    cronet_bidirectional_stream_write(s->cbs, "", 0, true);
+    bidirectional_stream_write(s->cbs, "", 0, true);
     s->state.state_op_done[OP_SEND_TRAILING_METADATA] = true;
 
     gpr_mu_unlock(&s->mu);
@@ -594,7 +592,7 @@ static void create_grpc_frame(grpc_slice_buffer *write_slice_buffer,
 */
 static void convert_metadata_to_cronet_headers(
     grpc_linked_mdelem *head, const char *host, char **pp_url,
-    cronet_bidirectional_stream_header **pp_headers, size_t *p_num_headers,
+    bidirectional_stream_header **pp_headers, size_t *p_num_headers,
     const char **method) {
   grpc_linked_mdelem *curr = head;
   /* Walk the linked list and get number of header fields */
@@ -605,9 +603,9 @@ static void convert_metadata_to_cronet_headers(
   }
   /* Allocate enough memory. It is freed in the on_request_headers_sent callback
    */
-  cronet_bidirectional_stream_header *headers =
+  bidirectional_stream_header *headers =
-      (cronet_bidirectional_stream_header *)gpr_malloc(
+      (bidirectional_stream_header *)gpr_malloc(
-          sizeof(cronet_bidirectional_stream_header) * num_headers_available);
+          sizeof(bidirectional_stream_header) * num_headers_available);
   *pp_headers = headers;
 
   /* Walk the linked list again, this time copying the header fields.
@@ -833,9 +831,9 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
      * on_failed */
     GPR_ASSERT(s->cbs == NULL);
     GPR_ASSERT(!stream_state->state_op_done[OP_SEND_INITIAL_METADATA]);
-    s->cbs = cronet_bidirectional_stream_create(s->curr_ct.engine, s->curr_gs,
+    s->cbs = bidirectional_stream_create(s->curr_ct.engine, s->curr_gs,
                                          &cronet_callbacks);
-    CRONET_LOG(GPR_DEBUG, "%p = cronet_bidirectional_stream_create()", s->cbs);
+    CRONET_LOG(GPR_DEBUG, "%p = bidirectional_stream_create()", s->cbs);
     char *url = NULL;
     const char *method = "POST";
     s->header_array.headers = NULL;
@@ -843,10 +841,8 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
         stream_op->send_initial_metadata->list.head, s->curr_ct.host, &url,
         &s->header_array.headers, &s->header_array.count, &method);
     s->header_array.capacity = s->header_array.count;
-    CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_start(%p, %s)", s->cbs,
+    CRONET_LOG(GPR_DEBUG, "bidirectional_stream_start(%p, %s)", s->cbs, url);
-               url);
+    bidirectional_stream_start(s->cbs, url, 0, method, &s->header_array, false);
-    cronet_bidirectional_stream_start(s->cbs, url, 0, method, &s->header_array,
-                                      false);
     stream_state->state_op_done[OP_SEND_INITIAL_METADATA] = true;
     result = ACTION_TAKEN_WITH_CALLBACK;
   } else if (stream_op->recv_initial_metadata &&
@@ -855,11 +851,10 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
     CRONET_LOG(GPR_DEBUG, "running: %p  OP_RECV_INITIAL_METADATA", oas);
     if (stream_state->state_op_done[OP_CANCEL_ERROR]) {
       grpc_closure_sched(exec_ctx, stream_op->recv_initial_metadata_ready,
-                         GRPC_ERROR_CANCELLED);
+                         GRPC_ERROR_NONE);
     } else if (stream_state->state_callback_received[OP_FAILED]) {
-      grpc_closure_sched(
+      grpc_closure_sched(exec_ctx, stream_op->recv_initial_metadata_ready,
-          exec_ctx, stream_op->recv_initial_metadata_ready,
+                         GRPC_ERROR_NONE);
-          make_error_with_desc(GRPC_STATUS_UNAVAILABLE, "Unavailable."));
     } else {
       grpc_chttp2_incoming_metadata_buffer_publish(
           &oas->s->state.rs.initial_metadata, stream_op->recv_initial_metadata);
@@ -897,10 +892,10 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
         size_t write_buffer_size;
         create_grpc_frame(&write_slice_buffer, &stream_state->ws.write_buffer,
                           &write_buffer_size);
-        CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_write (%p, %p)",
+        CRONET_LOG(GPR_DEBUG, "bidirectional_stream_write (%p, %p)", s->cbs,
-                   s->cbs, stream_state->ws.write_buffer);
+                   stream_state->ws.write_buffer);
         stream_state->state_callback_received[OP_SEND_MESSAGE] = false;
-        cronet_bidirectional_stream_write(s->cbs, stream_state->ws.write_buffer,
+        bidirectional_stream_write(s->cbs, stream_state->ws.write_buffer,
                                    (int)write_buffer_size, false);
         result = ACTION_TAKEN_WITH_CALLBACK;
       } else {
@@ -916,14 +911,13 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
     if (stream_state->state_op_done[OP_CANCEL_ERROR]) {
       CRONET_LOG(GPR_DEBUG, "Stream is cancelled.");
       grpc_closure_sched(exec_ctx, stream_op->recv_message_ready,
-                         GRPC_ERROR_CANCELLED);
+                         GRPC_ERROR_NONE);
       stream_state->state_op_done[OP_RECV_MESSAGE] = true;
       result = ACTION_TAKEN_NO_CALLBACK;
     } else if (stream_state->state_callback_received[OP_FAILED]) {
       CRONET_LOG(GPR_DEBUG, "Stream failed.");
-      grpc_closure_sched(
+      grpc_closure_sched(exec_ctx, stream_op->recv_message_ready,
-          exec_ctx, stream_op->recv_message_ready,
+                         GRPC_ERROR_NONE);
-          make_error_with_desc(GRPC_STATUS_UNAVAILABLE, "Unavailable."));
       stream_state->state_op_done[OP_RECV_MESSAGE] = true;
       result = ACTION_TAKEN_NO_CALLBACK;
     } else if (stream_state->rs.read_stream_closed == true) {
@@ -949,10 +943,10 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
           GPR_ASSERT(stream_state->rs.read_buffer);
           stream_state->rs.remaining_bytes = stream_state->rs.length_field;
           stream_state->rs.received_bytes = 0;
-          CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_read(%p)", s->cbs);
+          CRONET_LOG(GPR_DEBUG, "bidirectional_stream_read(%p)", s->cbs);
           stream_state->state_op_done[OP_READ_REQ_MADE] =
               true; /* Indicates that at least one read request has been made */
-          cronet_bidirectional_stream_read(s->cbs, stream_state->rs.read_buffer,
+          bidirectional_stream_read(s->cbs, stream_state->rs.read_buffer,
                                     stream_state->rs.remaining_bytes);
           result = ACTION_TAKEN_WITH_CALLBACK;
         } else {
@@ -974,10 +968,10 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
         stream_state->rs.read_buffer = stream_state->rs.grpc_header_bytes;
         stream_state->rs.remaining_bytes = GRPC_HEADER_SIZE_IN_BYTES;
         stream_state->rs.received_bytes = 0;
-        CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_read(%p)", s->cbs);
+        CRONET_LOG(GPR_DEBUG, "bidirectional_stream_read(%p)", s->cbs);
         stream_state->state_op_done[OP_READ_REQ_MADE] =
             true; /* Indicates that at least one read request has been made */
-        cronet_bidirectional_stream_read(s->cbs, stream_state->rs.read_buffer,
+        bidirectional_stream_read(s->cbs, stream_state->rs.read_buffer,
                                   stream_state->rs.remaining_bytes);
         result = ACTION_TAKEN_WITH_CALLBACK;
       } else {
@@ -1008,8 +1002,8 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
       stream_state->rs.received_bytes = 0;
       stream_state->rs.remaining_bytes = GRPC_HEADER_SIZE_IN_BYTES;
       stream_state->rs.length_field_received = false;
-      CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_read(%p)", s->cbs);
+      CRONET_LOG(GPR_DEBUG, "bidirectional_stream_read(%p)", s->cbs);
-      cronet_bidirectional_stream_read(s->cbs, stream_state->rs.read_buffer,
+      bidirectional_stream_read(s->cbs, stream_state->rs.read_buffer,
                                 stream_state->rs.remaining_bytes);
       result = ACTION_TAKEN_NO_CALLBACK;
     }
@@ -1033,10 +1027,9 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
       result = NO_ACTION_POSSIBLE;
       CRONET_LOG(GPR_DEBUG, "Stream is either cancelled or failed.");
     } else {
-      CRONET_LOG(GPR_DEBUG, "cronet_bidirectional_stream_write (%p, 0)",
+      CRONET_LOG(GPR_DEBUG, "bidirectional_stream_write (%p, 0)", s->cbs);
-                 s->cbs);
       stream_state->state_callback_received[OP_SEND_MESSAGE] = false;
-      cronet_bidirectional_stream_write(s->cbs, "", 0, true);
+      bidirectional_stream_write(s->cbs, "", 0, true);
       result = ACTION_TAKEN_WITH_CALLBACK;
     }
     stream_state->state_op_done[OP_SEND_TRAILING_METADATA] = true;
@@ -1044,9 +1037,9 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx,
              op_can_be_run(stream_op, stream_state, &oas->state,
                            OP_CANCEL_ERROR)) {
     CRONET_LOG(GPR_DEBUG, "running: %p  OP_CANCEL_ERROR", oas);
-    CRONET_LOG(GPR_DEBUG, "W: cronet_bidirectional_stream_cancel(%p)", s->cbs);
+    CRONET_LOG(GPR_DEBUG, "W: bidirectional_stream_cancel(%p)", s->cbs);
     if (s->cbs) {
-      cronet_bidirectional_stream_cancel(s->cbs);
+      bidirectional_stream_cancel(s->cbs);
       result = ACTION_TAKEN_WITH_CALLBACK;
     } else {
       result = ACTION_TAKEN_NO_CALLBACK;
@@ -1143,18 +1136,17 @@ static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt,
       header_has_authority(op->send_initial_metadata->list.head)) {
     /* Cronet does not support :authority header field. We cancel the call when
        this field is present in metadata */
-    cronet_bidirectional_stream_header_array header_array;
+    bidirectional_stream_header_array header_array;
-    cronet_bidirectional_stream_header *header;
+    bidirectional_stream_header *header;
-    cronet_bidirectional_stream cbs;
+    bidirectional_stream cbs;
     CRONET_LOG(GPR_DEBUG,
                ":authority header is provided but not supported;"
                " cancel operations");
     /* Notify application that operation is cancelled by forging trailers */
     header_array.count = 1;
     header_array.capacity = 1;
-    header_array.headers =
+    header_array.headers = gpr_malloc(sizeof(bidirectional_stream_header));
-        gpr_malloc(sizeof(cronet_bidirectional_stream_header));
+    header = (bidirectional_stream_header *)header_array.headers;
-    header = (cronet_bidirectional_stream_header *)header_array.headers;
     header->key = "grpc-status";
     header->value = "1"; /* Return status GRPC_STATUS_CANCELLED */
     cbs.annotation = (void *)s;

src/core/lib/iomgr/ev_epoll_linux.c

@@ -796,7 +796,7 @@ static polling_island *polling_island_merge(polling_island *p,
     gpr_atm_rel_store(&p->merged_to, (gpr_atm)q);
     PI_ADD_REF(q, "pi_merge"); /* To account for the new incoming ref from p */
 
-    workqueue_move_items_to_parent(q);
+    workqueue_move_items_to_parent(p);
   }
   /* else if p == q, nothing needs to be done */
 
@@ -1527,7 +1527,8 @@ static void pollset_work_and_unlock(grpc_exec_ctx *exec_ctx,
         append_error(error, grpc_wakeup_fd_consume_wakeup(&global_wakeup_fd),
                      err_desc);
       } else if (data_ptr == &pi->workqueue_wakeup_fd) {
-        append_error(error, grpc_wakeup_fd_consume_wakeup(&global_wakeup_fd),
+        append_error(error,
+                     grpc_wakeup_fd_consume_wakeup(&pi->workqueue_wakeup_fd),
                      err_desc);
         maybe_do_workqueue_work(exec_ctx, pi);
       } else if (data_ptr == &polling_island_wakeup_fd) {

src/core/lib/iomgr/ev_poll_posix.c

@@ -413,9 +413,7 @@ static void fd_orphan(grpc_exec_ctx *exec_ctx, grpc_fd *fd,
                       const char *reason) {
   fd->on_done_closure = on_done;
   fd->released = release_fd != NULL;
-  if (!fd->released) {
+  if (fd->released) {
-    shutdown(fd->fd, SHUT_RDWR);
-  } else {
     *release_fd = fd->fd;
   }
   gpr_mu_lock(&fd->mu);

src/core/lib/iomgr/resource_quota.c

@@ -691,6 +691,11 @@ grpc_resource_user *grpc_resource_user_create(
   return resource_user;
 }
 
+grpc_resource_quota *grpc_resource_user_quota(
+    grpc_resource_user *resource_user) {
+  return resource_user->resource_quota;
+}
+
 static void ru_ref_by(grpc_resource_user *resource_user, gpr_atm amount) {
   GPR_ASSERT(amount > 0);
   GPR_ASSERT(gpr_atm_no_barrier_fetch_add(&resource_user->refs, amount) != 0);

src/core/lib/iomgr/resource_quota.h

@@ -88,6 +88,12 @@ typedef struct grpc_resource_user grpc_resource_user;
 
 grpc_resource_user *grpc_resource_user_create(
     grpc_resource_quota *resource_quota, const char *name);
+
+/* Returns a borrowed reference to the underlying resource quota for this
+   resource user. */
+grpc_resource_quota *grpc_resource_user_quota(
+    grpc_resource_user *resource_user);
+
 void grpc_resource_user_ref(grpc_resource_user *resource_user);
 void grpc_resource_user_unref(grpc_exec_ctx *exec_ctx,
                               grpc_resource_user *resource_user);

src/core/lib/slice/slice_buffer.c

@@ -46,15 +46,27 @@
 #define GROW(x) (3 * (x) / 2)
 
 static void maybe_embiggen(grpc_slice_buffer *sb) {
-  if (sb->count == sb->capacity) {
+  if (sb->base_slices != sb->slices) {
+    memmove(sb->base_slices, sb->slices, sb->count * sizeof(grpc_slice));
+    sb->slices = sb->base_slices;
+  }
+
+  /* How far away from sb->base_slices is sb->slices pointer */
+  size_t slice_offset = (size_t)(sb->slices - sb->base_slices);
+  size_t slice_count = sb->count + slice_offset;
+
+  if (slice_count == sb->capacity) {
     sb->capacity = GROW(sb->capacity);
-    GPR_ASSERT(sb->capacity > sb->count);
+    GPR_ASSERT(sb->capacity > slice_count);
-    if (sb->slices == sb->inlined) {
+    if (sb->base_slices == sb->inlined) {
-      sb->slices = gpr_malloc(sb->capacity * sizeof(grpc_slice));
+      sb->base_slices = gpr_malloc(sb->capacity * sizeof(grpc_slice));
-      memcpy(sb->slices, sb->inlined, sb->count * sizeof(grpc_slice));
+      memcpy(sb->base_slices, sb->inlined, slice_count * sizeof(grpc_slice));
     } else {
-      sb->slices = gpr_realloc(sb->slices, sb->capacity * sizeof(grpc_slice));
+      sb->base_slices =
+          gpr_realloc(sb->base_slices, sb->capacity * sizeof(grpc_slice));
     }
+
+    sb->slices = sb->base_slices + slice_offset;
   }
 }
 
@@ -62,14 +74,14 @@ void grpc_slice_buffer_init(grpc_slice_buffer *sb) {
   sb->count = 0;
   sb->length = 0;
   sb->capacity = GRPC_SLICE_BUFFER_INLINE_ELEMENTS;
-  sb->slices = sb->inlined;
+  sb->base_slices = sb->slices = sb->inlined;
 }
 
 void grpc_slice_buffer_destroy_internal(grpc_exec_ctx *exec_ctx,
                                         grpc_slice_buffer *sb) {
   grpc_slice_buffer_reset_and_unref_internal(exec_ctx, sb);
-  if (sb->slices != sb->inlined) {
+  if (sb->base_slices != sb->inlined) {
-    gpr_free(sb->slices);
+    gpr_free(sb->base_slices);
   }
 }
 
@@ -166,7 +178,6 @@ void grpc_slice_buffer_pop(grpc_slice_buffer *sb) {
 void grpc_slice_buffer_reset_and_unref_internal(grpc_exec_ctx *exec_ctx,
                                                 grpc_slice_buffer *sb) {
   size_t i;
-
   for (i = 0; i < sb->count; i++) {
     grpc_slice_unref_internal(exec_ctx, sb->slices[i]);
   }
@@ -182,32 +193,45 @@ void grpc_slice_buffer_reset_and_unref(grpc_slice_buffer *sb) {
 }
 
 void grpc_slice_buffer_swap(grpc_slice_buffer *a, grpc_slice_buffer *b) {
-  GPR_SWAP(size_t, a->count, b->count);
+  size_t a_offset = (size_t)(a->slices - a->base_slices);
-  GPR_SWAP(size_t, a->capacity, b->capacity);
+  size_t b_offset = (size_t)(b->slices - b->base_slices);
-  GPR_SWAP(size_t, a->length, b->length);
 
-  if (a->slices == a->inlined) {
+  size_t a_count = a->count + a_offset;
-    if (b->slices == b->inlined) {
+  size_t b_count = b->count + b_offset;
+
+  if (a->base_slices == a->inlined) {
+    if (b->base_slices == b->inlined) {
       /* swap contents of inlined buffer */
       grpc_slice temp[GRPC_SLICE_BUFFER_INLINE_ELEMENTS];
-      memcpy(temp, a->slices, b->count * sizeof(grpc_slice));
+      memcpy(temp, a->base_slices, a_count * sizeof(grpc_slice));
-      memcpy(a->slices, b->slices, a->count * sizeof(grpc_slice));
+      memcpy(a->base_slices, b->base_slices, b_count * sizeof(grpc_slice));
-      memcpy(b->slices, temp, b->count * sizeof(grpc_slice));
+      memcpy(b->base_slices, temp, a_count * sizeof(grpc_slice));
     } else {
       /* a is inlined, b is not - copy a inlined into b, fix pointers */
-      a->slices = b->slices;
+      a->base_slices = b->base_slices;
-      b->slices = b->inlined;
+      b->base_slices = b->inlined;
-      memcpy(b->slices, a->inlined, b->count * sizeof(grpc_slice));
+      memcpy(b->base_slices, a->inlined, a_count * sizeof(grpc_slice));
     }
-  } else if (b->slices == b->inlined) {
+  } else if (b->base_slices == b->inlined) {
     /* b is inlined, a is not - copy b inlined int a, fix pointers */
-    b->slices = a->slices;
+    b->base_slices = a->base_slices;
-    a->slices = a->inlined;
+    a->base_slices = a->inlined;
-    memcpy(a->slices, b->inlined, a->count * sizeof(grpc_slice));
+    memcpy(a->base_slices, b->inlined, b_count * sizeof(grpc_slice));
   } else {
     /* no inlining: easy swap */
-    GPR_SWAP(grpc_slice *, a->slices, b->slices);
+    GPR_SWAP(grpc_slice *, a->base_slices, b->base_slices);
   }
+
+  /* Update the slices pointers (cannot do a GPR_SWAP on slices fields here).
+   * Also note that since the base_slices pointers are already swapped we need
+   * use 'b_offset' for 'a->base_slices' and vice versa */
+  a->slices = a->base_slices + b_offset;
+  b->slices = b->base_slices + a_offset;
+
+  /* base_slices and slices fields are correctly set. Swap all other fields */
+  GPR_SWAP(size_t, a->count, b->count);
+  GPR_SWAP(size_t, a->capacity, b->capacity);
+  GPR_SWAP(size_t, a->length, b->length);
 }
 
 void grpc_slice_buffer_move_into(grpc_slice_buffer *src,
@@ -229,7 +253,6 @@ void grpc_slice_buffer_move_into(grpc_slice_buffer *src,
 
 void grpc_slice_buffer_move_first(grpc_slice_buffer *src, size_t n,
                                   grpc_slice_buffer *dst) {
-  size_t src_idx;
   size_t output_len = dst->length + n;
   size_t new_input_len = src->length - n;
   GPR_ASSERT(src->length >= n);
@@ -237,34 +260,55 @@ void grpc_slice_buffer_move_first(grpc_slice_buffer *src, size_t n,
     grpc_slice_buffer_move_into(src, dst);
     return;
   }
-  src_idx = 0;
+
-  while (src_idx < src->capacity) {
+  while (src->count > 0) {
-    grpc_slice slice = src->slices[src_idx];
+    grpc_slice slice = grpc_slice_buffer_take_first(src);
     size_t slice_len = GRPC_SLICE_LENGTH(slice);
     if (n > slice_len) {
       grpc_slice_buffer_add(dst, slice);
       n -= slice_len;
-      src_idx++;
     } else if (n == slice_len) {
       grpc_slice_buffer_add(dst, slice);
-      src_idx++;
       break;
     } else { /* n < slice_len */
-      src->slices[src_idx] = grpc_slice_split_tail(&slice, n);
+      grpc_slice_buffer_undo_take_first(src, grpc_slice_split_tail(&slice, n));
       GPR_ASSERT(GRPC_SLICE_LENGTH(slice) == n);
-      GPR_ASSERT(GRPC_SLICE_LENGTH(src->slices[src_idx]) == slice_len - n);
       grpc_slice_buffer_add(dst, slice);
       break;
     }
   }
   GPR_ASSERT(dst->length == output_len);
-  memmove(src->slices, src->slices + src_idx,
+  GPR_ASSERT(src->length == new_input_len);
-          sizeof(grpc_slice) * (src->count - src_idx));
-  src->count -= src_idx;
-  src->length = new_input_len;
   GPR_ASSERT(src->count > 0);
 }
 
+void grpc_slice_buffer_move_first_into_buffer(grpc_exec_ctx *exec_ctx,
+                                              grpc_slice_buffer *src, size_t n,
+                                              void *dst) {
+  char *dstp = dst;
+  GPR_ASSERT(src->length >= n);
+
+  while (n > 0) {
+    grpc_slice slice = grpc_slice_buffer_take_first(src);
+    size_t slice_len = GRPC_SLICE_LENGTH(slice);
+    if (slice_len > n) {
+      memcpy(dstp, GRPC_SLICE_START_PTR(slice), n);
+      grpc_slice_buffer_undo_take_first(
+          src, grpc_slice_sub_no_ref(slice, n, slice_len));
+      n = 0;
+    } else if (slice_len == n) {
+      memcpy(dstp, GRPC_SLICE_START_PTR(slice), n);
+      grpc_slice_unref_internal(exec_ctx, slice);
+      n = 0;
+    } else {
+      memcpy(dstp, GRPC_SLICE_START_PTR(slice), slice_len);
+      dstp += slice_len;
+      n -= slice_len;
+      grpc_slice_unref_internal(exec_ctx, slice);
+    }
+  }
+}
+
 void grpc_slice_buffer_trim_end(grpc_slice_buffer *sb, size_t n,
                                 grpc_slice_buffer *garbage) {
   GPR_ASSERT(n <= sb->length);
@@ -293,8 +337,17 @@ grpc_slice grpc_slice_buffer_take_first(grpc_slice_buffer *sb) {
   grpc_slice slice;
   GPR_ASSERT(sb->count > 0);
   slice = sb->slices[0];
-  memmove(&sb->slices[0], &sb->slices[1], (sb->count - 1) * sizeof(grpc_slice));
+  sb->slices++;
   sb->count--;
   sb->length -= GRPC_SLICE_LENGTH(slice);
+
   return slice;
 }
+
+void grpc_slice_buffer_undo_take_first(grpc_slice_buffer *sb,
+                                       grpc_slice slice) {
+  sb->slices--;
+  sb->slices[0] = slice;
+  sb->count++;
+  sb->length += GRPC_SLICE_LENGTH(slice);
+}

src/core/lib/surface/call.c

@@ -1461,7 +1461,7 @@ static grpc_call_error call_start_batch(grpc_exec_ctx *exec_ctx,
           error = GRPC_CALL_ERROR_INVALID_FLAGS;
           goto done_with_error;
         }
-        if (op->data.send_message == NULL) {
+        if (op->data.send_message.send_message == NULL) {
           error = GRPC_CALL_ERROR_INVALID_MESSAGE;
           goto done_with_error;
         }
@@ -1473,11 +1473,13 @@ static grpc_call_error call_start_batch(grpc_exec_ctx *exec_ctx,
         call->sending_message = 1;
         grpc_slice_buffer_stream_init(
             &call->sending_stream,
-            &op->data.send_message->data.raw.slice_buffer, op->flags);
+            &op->data.send_message.send_message->data.raw.slice_buffer,
+            op->flags);
         /* If the outgoing buffer is already compressed, mark it as so in the
            flags. These will be picked up by the compression filter and further
            (wasteful) attempts at compression skipped. */
-        if (op->data.send_message->data.raw.compression > GRPC_COMPRESS_NONE) {
+        if (op->data.send_message.send_message->data.raw.compression >
+            GRPC_COMPRESS_NONE) {
           call->sending_stream.base.flags |= GRPC_WRITE_INTERNAL_COMPRESS;
         }
         stream_op->send_message = &call->sending_stream.base;
@@ -1565,7 +1567,8 @@ static grpc_call_error call_start_batch(grpc_exec_ctx *exec_ctx,
            that case we're not necessarily covered by a poller. */
         stream_op->covered_by_poller = call->is_client;
         call->received_initial_metadata = 1;
-        call->buffered_metadata[0] = op->data.recv_initial_metadata;
+        call->buffered_metadata[0] =
+            op->data.recv_initial_metadata.recv_initial_metadata;
         grpc_closure_init(&call->receiving_initial_metadata_ready,
                           receiving_initial_metadata_ready, bctl,
                           grpc_schedule_on_exec_ctx);
@@ -1588,7 +1591,7 @@ static grpc_call_error call_start_batch(grpc_exec_ctx *exec_ctx,
         }
         call->receiving_message = 1;
         bctl->recv_message = 1;
-        call->receiving_buffer = op->data.recv_message;
+        call->receiving_buffer = op->data.recv_message.recv_message;
         stream_op->recv_message = &call->receiving_stream;
         grpc_closure_init(&call->receiving_stream_ready, receiving_stream_ready,
                           bctl, grpc_schedule_on_exec_ctx);

src/core/lib/surface/call_log_batch.c

@@ -63,7 +63,8 @@ char *grpc_op_string(const grpc_op *op) {
                    op->data.send_initial_metadata.count);
       break;
     case GRPC_OP_SEND_MESSAGE:
-      gpr_asprintf(&tmp, "SEND_MESSAGE ptr=%p", op->data.send_message);
+      gpr_asprintf(&tmp, "SEND_MESSAGE ptr=%p",
+                   op->data.send_message.send_message);
       gpr_strvec_add(&b, tmp);
       break;
     case GRPC_OP_SEND_CLOSE_FROM_CLIENT:
@@ -79,11 +80,12 @@ char *grpc_op_string(const grpc_op *op) {
       break;
     case GRPC_OP_RECV_INITIAL_METADATA:
       gpr_asprintf(&tmp, "RECV_INITIAL_METADATA ptr=%p",
-                   op->data.recv_initial_metadata);
+                   op->data.recv_initial_metadata.recv_initial_metadata);
       gpr_strvec_add(&b, tmp);
       break;
     case GRPC_OP_RECV_MESSAGE:
-      gpr_asprintf(&tmp, "RECV_MESSAGE ptr=%p", op->data.recv_message);
+      gpr_asprintf(&tmp, "RECV_MESSAGE ptr=%p",
+                   op->data.recv_message.recv_message);
       gpr_strvec_add(&b, tmp);
       break;
     case GRPC_OP_RECV_STATUS_ON_CLIENT:

src/core/lib/surface/server.c

@@ -609,7 +609,7 @@ static void finish_start_new_rpc(
       grpc_op op;
       memset(&op, 0, sizeof(op));
       op.op = GRPC_OP_RECV_MESSAGE;
-      op.data.recv_message = &calld->payload;
+      op.data.recv_message.recv_message = &calld->payload;
       grpc_closure_init(&calld->publish, publish_new_rpc, elem,
                         grpc_schedule_on_exec_ctx);
       grpc_call_start_batch_and_execute(exec_ctx, calld->call, &op, 1,
@@ -857,7 +857,8 @@ static void accept_stream(grpc_exec_ctx *exec_ctx, void *cd,
   grpc_op op;
   memset(&op, 0, sizeof(op));
   op.op = GRPC_OP_RECV_INITIAL_METADATA;
-  op.data.recv_initial_metadata = &calld->initial_metadata;
+  op.data.recv_initial_metadata.recv_initial_metadata =
+      &calld->initial_metadata;
   grpc_closure_init(&calld->got_initial_metadata, got_initial_metadata, elem,
                     grpc_schedule_on_exec_ctx);
   grpc_call_start_batch_and_execute(exec_ctx, call, &op, 1,

src/cpp/common/channel_arguments.cc

@@ -143,6 +143,14 @@ void ChannelArguments::SetResourceQuota(
                        grpc_resource_quota_arg_vtable());
 }
 
+void ChannelArguments::SetMaxReceiveMessageSize(int size) {
+  SetInt(GRPC_ARG_MAX_RECEIVE_MESSAGE_LENGTH, size);
+}
+
+void ChannelArguments::SetMaxSendMessageSize(int size) {
+  SetInt(GRPC_ARG_MAX_SEND_MESSAGE_LENGTH, size);
+}
+
 void ChannelArguments::SetLoadBalancingPolicyName(
     const grpc::string& lb_policy_name) {
   SetString(GRPC_ARG_LB_POLICY_NAME, lb_policy_name);

src/csharp/ext/grpc_csharp_ext.c

@@ -537,7 +537,7 @@ grpcsharp_call_start_unary(grpc_call *call, grpcsharp_batch_context *ctx,
 
   ops[1].op = GRPC_OP_SEND_MESSAGE;
   ctx->send_message = string_to_byte_buffer(send_buffer, send_buffer_len);
-  ops[1].data.send_message = ctx->send_message;
+  ops[1].data.send_message.send_message = ctx->send_message;
   ops[1].flags = write_flags;
   ops[1].reserved = NULL;
 
@@ -546,12 +546,13 @@ grpcsharp_call_start_unary(grpc_call *call, grpcsharp_batch_context *ctx,
   ops[2].reserved = NULL;
 
   ops[3].op = GRPC_OP_RECV_INITIAL_METADATA;
-  ops[3].data.recv_initial_metadata = &(ctx->recv_initial_metadata);
+  ops[3].data.recv_initial_metadata.recv_initial_metadata =
+      &(ctx->recv_initial_metadata);
   ops[3].flags = 0;
   ops[3].reserved = NULL;
 
   ops[4].op = GRPC_OP_RECV_MESSAGE;
-  ops[4].data.recv_message = &(ctx->recv_message);
+  ops[4].data.recv_message.recv_message = &(ctx->recv_message);
   ops[4].flags = 0;
   ops[4].reserved = NULL;
 
@@ -590,12 +591,13 @@ grpcsharp_call_start_client_streaming(grpc_call *call,
   ops[0].reserved = NULL;
 
   ops[1].op = GRPC_OP_RECV_INITIAL_METADATA;
-  ops[1].data.recv_initial_metadata = &(ctx->recv_initial_metadata);
+  ops[1].data.recv_initial_metadata.recv_initial_metadata =
+      &(ctx->recv_initial_metadata);
   ops[1].flags = 0;
   ops[1].reserved = NULL;
 
   ops[2].op = GRPC_OP_RECV_MESSAGE;
-  ops[2].data.recv_message = &(ctx->recv_message);
+  ops[2].data.recv_message.recv_message = &(ctx->recv_message);
   ops[2].flags = 0;
   ops[2].reserved = NULL;
 
@@ -634,7 +636,7 @@ GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcsharp_call_start_server_streaming(
 
   ops[1].op = GRPC_OP_SEND_MESSAGE;
   ctx->send_message = string_to_byte_buffer(send_buffer, send_buffer_len);
-  ops[1].data.send_message = ctx->send_message;
+  ops[1].data.send_message.send_message = ctx->send_message;
   ops[1].flags = write_flags;
   ops[1].reserved = NULL;
 
@@ -698,7 +700,8 @@ GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcsharp_call_recv_initial_metadata(
   /* TODO: don't use magic number */
   grpc_op ops[1];
   ops[0].op = GRPC_OP_RECV_INITIAL_METADATA;
-  ops[0].data.recv_initial_metadata = &(ctx->recv_initial_metadata);
+  ops[0].data.recv_initial_metadata.recv_initial_metadata =
+      &(ctx->recv_initial_metadata);
   ops[0].flags = 0;
   ops[0].reserved = NULL;
 
@@ -717,7 +720,7 @@ grpcsharp_call_send_message(grpc_call *call, grpcsharp_batch_context *ctx,
   size_t nops = send_empty_initial_metadata ? 2 : 1;
   ops[0].op = GRPC_OP_SEND_MESSAGE;
   ctx->send_message = string_to_byte_buffer(send_buffer, send_buffer_len);
-  ops[0].data.send_message = ctx->send_message;
+  ops[0].data.send_message.send_message = ctx->send_message;
   ops[0].flags = write_flags;
   ops[0].reserved = NULL;
   ops[1].op = GRPC_OP_SEND_INITIAL_METADATA;
@@ -765,7 +768,7 @@ GPR_EXPORT grpc_call_error GPR_CALLTYPE grpcsharp_call_send_status_from_server(
     ops[nops].op = GRPC_OP_SEND_MESSAGE;
     ctx->send_message = string_to_byte_buffer(optional_send_buffer,
                                               optional_send_buffer_len);
-    ops[nops].data.send_message = ctx->send_message;
+    ops[nops].data.send_message.send_message = ctx->send_message;
     ops[nops].flags = write_flags;
     ops[nops].reserved = NULL;
     nops ++;
@@ -784,7 +787,7 @@ grpcsharp_call_recv_message(grpc_call *call, grpcsharp_batch_context *ctx) {
   /* TODO: don't use magic number */
   grpc_op ops[1];
   ops[0].op = GRPC_OP_RECV_MESSAGE;
-  ops[0].data.recv_message = &(ctx->recv_message);
+  ops[0].data.recv_message.recv_message = &(ctx->recv_message);
   ops[0].flags = 0;
   ops[0].reserved = NULL;
   return grpc_call_start_batch(call, ops, sizeof(ops) / sizeof(ops[0]), ctx,

src/node/ext/call.cc

@@ -262,7 +262,7 @@ class SendMessageOp : public Op {
       }
     }
     send_message = BufferToByteBuffer(value);
-    out->data.send_message = send_message;
+    out->data.send_message.send_message = send_message;
     PersistentValue *handle = new PersistentValue(value);
     resources->handles.push_back(unique_ptr<PersistentValue>(handle));
     return true;
@@ -377,7 +377,7 @@ class GetMetadataOp : public Op {
 
   bool ParseOp(Local<Value> value, grpc_op *out,
                shared_ptr<Resources> resources) {
-    out->data.recv_initial_metadata = &recv_metadata;
+    out->data.recv_initial_metadata.recv_initial_metadata = &recv_metadata;
     return true;
   }
   bool IsFinalOp() {
@@ -410,7 +410,7 @@ class ReadMessageOp : public Op {
 
   bool ParseOp(Local<Value> value, grpc_op *out,
                shared_ptr<Resources> resources) {
-    out->data.recv_message = &recv_message;
+    out->data.recv_message.recv_message = &recv_message;
     return true;
   }
   bool IsFinalOp() {

src/node/ext/call_credentials.cc

@@ -35,7 +35,7 @@
 #include <nan.h>
 #include <uv.h>
 
-#include <list>
+#include <queue>
 
 #include "grpc/grpc.h"
 #include "grpc/grpc_security.h"
@@ -170,7 +170,7 @@ NAN_METHOD(CallCredentials::CreateFromPlugin) {
   grpc_metadata_credentials_plugin plugin;
   plugin_state *state = new plugin_state;
   state->callback = new Nan::Callback(info[0].As<Function>());
-  state->pending_callbacks = new std::list<plugin_callback_data*>();
+  state->pending_callbacks = new std::queue<plugin_callback_data*>();
   uv_mutex_init(&state->plugin_mutex);
   uv_async_init(uv_default_loop(),
                 &state->plugin_async,
@@ -232,13 +232,13 @@ NAN_METHOD(PluginCallback) {
 NAUV_WORK_CB(SendPluginCallback) {
   Nan::HandleScope scope;
   plugin_state *state = reinterpret_cast<plugin_state*>(async->data);
-  std::list<plugin_callback_data*> callbacks;
+  std::queue<plugin_callback_data*> callbacks;
   uv_mutex_lock(&state->plugin_mutex);
-  callbacks.splice(callbacks.begin(), *state->pending_callbacks);
+  state->pending_callbacks->swap(callbacks);
   uv_mutex_unlock(&state->plugin_mutex);
   while (!callbacks.empty()) {
     plugin_callback_data *data = callbacks.front();
-    callbacks.pop_front();
+    callbacks.pop();
     Local<Object> callback_data = Nan::New<Object>();
     Nan::Set(callback_data, Nan::New("cb").ToLocalChecked(),
              Nan::New<v8::External>(reinterpret_cast<void*>(data->cb)));
@@ -267,7 +267,7 @@ void plugin_get_metadata(void *state, grpc_auth_metadata_context context,
   data->user_data = user_data;
 
   uv_mutex_lock(&p_state->plugin_mutex);
-  p_state->pending_callbacks->push_back(data);
+  p_state->pending_callbacks->push(data);
   uv_mutex_unlock(&p_state->plugin_mutex);
 
   uv_async_send(&p_state->plugin_async);

src/node/ext/call_credentials.h

@@ -34,7 +34,7 @@
 #ifndef GRPC_NODE_CALL_CREDENTIALS_H_
 #define GRPC_NODE_CALL_CREDENTIALS_H_
 
-#include <list>
+#include <queue>
 
 #include <node.h>
 #include <nan.h>
@@ -84,7 +84,7 @@ typedef struct plugin_callback_data {
 
 typedef struct plugin_state {
   Nan::Callback *callback;
-  std::list<plugin_callback_data*> *pending_callbacks;
+  std::queue<plugin_callback_data*> *pending_callbacks;
   uv_mutex_t plugin_mutex;
   // async.data == this
   uv_async_t plugin_async;

src/node/ext/completion_queue.h

@@ -32,6 +32,7 @@
  */
 
 #include <v8.h>
+#include <grpc/grpc.h>
 
 namespace grpc {
 namespace node {

src/node/ext/completion_queue_threadpool.cc

@@ -31,18 +31,63 @@
  *
  */
 
+/* I don't like using #ifndef, but I don't see a better way to do this */
+#ifndef GRPC_UV
+
 #include <node.h>
 #include <nan.h>
 
 #include "grpc/grpc.h"
 #include "grpc/support/log.h"
 #include "grpc/support/time.h"
-#include "completion_queue_async_worker.h"
+#include "completion_queue.h"
 #include "call.h"
 
 namespace grpc {
 namespace node {
 
+namespace {
+
+/* A worker that asynchronously calls completion_queue_next, and queues onto the
+   node event loop a call to the function stored in the event's tag. */
+class CompletionQueueAsyncWorker : public Nan::AsyncWorker {
+ public:
+  CompletionQueueAsyncWorker();
+
+  ~CompletionQueueAsyncWorker();
+  /* Calls completion_queue_next with the provided deadline, and stores the
+     event if there was one or sets an error message if there was not */
+  void Execute();
+
+  /* Returns the completion queue attached to this class */
+  static grpc_completion_queue *GetQueue();
+
+  /* Convenience function to create a worker with the given arguments and queue
+     it to run asynchronously */
+  static void Next();
+
+  /* Initialize the CompletionQueueAsyncWorker class */
+  static void Init(v8::Local<v8::Object> exports);
+
+ protected:
+  /* Called when Execute has succeeded (completed without setting an error
+     message). Calls the saved callback with the event that came from
+     completion_queue_next */
+  void HandleOKCallback();
+
+  void HandleErrorCallback();
+
+ private:
+  grpc_event result;
+
+  static grpc_completion_queue *queue;
+
+  // Number of grpc_completion_queue_next calls in the thread pool
+  static int current_threads;
+  // Number of grpc_completion_queue_next calls waiting to enter the thread pool
+  static int waiting_next_calls;
+};
+
 const int max_queue_threads = 2;
 
 using v8::Function;
@@ -137,5 +182,21 @@ void CompletionQueueAsyncWorker::HandleErrorCallback() {
   DestroyTag(result.tag);
 }
 
+}  // namespace
+
+grpc_completion_queue *GetCompletionQueue() {
+  return CompletionQueueAsyncWorker::GetQueue();
+}
+
+void CompletionQueueNext() {
+  CompletionQueueAsyncWorker::Next();
+}
+
+void CompletionQueueInit(Local<Object> exports) {
+  CompletionQueueAsyncWorker::Init(exports);
+}
+
 }  // namespace node
 }  // namespace grpc
+
+#endif  /* GRPC_UV */

src/node/ext/completion_queue_uv.cc

@@ -31,6 +31,8 @@
  *
  */
 
+#ifdef GRPC_UV
+
 #include <uv.h>
 #include <node.h>
 #include <v8.h>
@@ -38,7 +40,6 @@
 
 #include "call.h"
 #include "completion_queue.h"
-#include "completion_queue_async_worker.h"
 
 namespace grpc {
 namespace node {
@@ -81,34 +82,24 @@ void drain_completion_queue(uv_prepare_t *handle) {
 }
 
 grpc_completion_queue *GetCompletionQueue() {
-#ifdef GRPC_UV
   return queue;
-#else
-  return CompletionQueueAsyncWorker::GetQueue();
-#endif
 }
 
 void CompletionQueueNext() {
-#ifdef GRPC_UV
   if (pending_batches == 0) {
     GPR_ASSERT(!uv_is_active((uv_handle_t *)&prepare));
     uv_prepare_start(&prepare, drain_completion_queue);
   }
   pending_batches++;
-#else
-  CompletionQueueAsyncWorker::Next();
-#endif
 }
 
 void CompletionQueueInit(Local<Object> exports) {
-#ifdef GRPC_UV
   queue = grpc_completion_queue_create(NULL);
   uv_prepare_init(uv_default_loop(), &prepare);
   pending_batches = 0;
-#else
-  CompletionQueueAsyncWorker::Init(exports);
-#endif
 }
 
 }  // namespace node
 }  // namespace grpc
+
+#endif /* GRPC_UV */

src/node/ext/node_grpc.cc

@@ -31,7 +31,7 @@
  *
  */
 
-#include <list>
+#include <queue>
 
 #include <node.h>
 #include <nan.h>
@@ -74,7 +74,7 @@ typedef struct log_args {
 
 typedef struct logger_state {
   Nan::Callback *callback;
-  std::list<log_args *> *pending_args;
+  std::queue<log_args *> *pending_args;
   uv_mutex_t mutex;
   uv_async_t async;
   // Indicates that a logger has been set
@@ -342,14 +342,14 @@ NAN_METHOD(SetDefaultRootsPem) {
 
 NAUV_WORK_CB(LogMessagesCallback) {
   Nan::HandleScope scope;
-  std::list<log_args *> args;
+  std::queue<log_args *> args;
   uv_mutex_lock(&grpc_logger_state.mutex);
-  args.splice(args.begin(), *grpc_logger_state.pending_args);
+  grpc_logger_state.pending_args->swap(args);
   uv_mutex_unlock(&grpc_logger_state.mutex);
   /* Call the callback with each log message */
   while (!args.empty()) {
     log_args *arg = args.front();
-    args.pop_front();
+    args.pop();
     Local<Value> file = Nan::New(arg->core_args.file).ToLocalChecked();
     Local<Value> line = Nan::New<Uint32, uint32_t>(arg->core_args.line);
     Local<Value> severity = Nan::New(
@@ -376,7 +376,7 @@ void node_log_func(gpr_log_func_args *args) {
   args_copy->timestamp = gpr_now(GPR_CLOCK_REALTIME);
 
   uv_mutex_lock(&grpc_logger_state.mutex);
-  grpc_logger_state.pending_args->push_back(args_copy);
+  grpc_logger_state.pending_args->push(args_copy);
   uv_mutex_unlock(&grpc_logger_state.mutex);
 
   uv_async_send(&grpc_logger_state.async);
@@ -384,7 +384,7 @@ void node_log_func(gpr_log_func_args *args) {
 
 void init_logger() {
   memset(&grpc_logger_state, 0, sizeof(logger_state));
-  grpc_logger_state.pending_args = new std::list<log_args *>();
+  grpc_logger_state.pending_args = new std::queue<log_args *>();
   uv_mutex_init(&grpc_logger_state.mutex);
   uv_async_init(uv_default_loop(),
                 &grpc_logger_state.async,

src/node/test/surface_test.js

@@ -183,6 +183,7 @@ describe('Server.prototype.addProtoService', function() {
         assert.strictEqual(err.code, grpc.status.UNIMPLEMENTED);
         done();
       });
+      call.on('error', function(status) { /* Do nothing */ });
     });
     it('should respond to a bidi call with UNIMPLEMENTED', function(done) {
       var call = client.divMany();
@@ -193,6 +194,7 @@ describe('Server.prototype.addProtoService', function() {
         assert.strictEqual(err.code, grpc.status.UNIMPLEMENTED);
         done();
       });
+      call.on('error', function(status) { /* Do nothing */ });
       call.end();
     });
   });

src/objective-c/CronetFramework.podspec

@@ -30,7 +30,8 @@
 
 Pod::Spec.new do |s|
   s.name         = "CronetFramework"
-  s.version      = "0.0.3"
+  v = '0.0.4'
+  s.version      = v
   s.summary      = "Cronet, precompiled and used as a framework."
   s.homepage     = "http://chromium.org"
   s.license      = {
@@ -69,7 +70,7 @@ Pod::Spec.new do |s|
   s.vendored_framework = "Cronet.framework"
   s.author             = "The Chromium Authors"
   s.ios.deployment_target = "8.0"
-  s.source       = { :http => 'https://storage.googleapis.com/grpc-precompiled-binaries/cronet/Cronet.framework.zip' }
+  s.source       = { :http => "https://storage.googleapis.com/grpc-precompiled-binaries/cronet/Cronet.framework-v#{v}.zip"}
   s.preserve_paths = "Cronet.framework"
   s.public_header_files = "Cronet.framework/Headers/**/*{.h}"
   s.source_files = "Cronet.framework/Headers/**/*{.h}"

src/objective-c/GRPCClient/GRPCCall+Cronet.h

@@ -43,13 +43,13 @@
 /**
  * This method should be called before issuing the first RPC. It should be
  * called only once. Create an instance of Cronet engine in your app elsewhere
- * and pass the instance pointer in the cronet_engine parameter. Once set,
+ * and pass the instance pointer in the stream_engine parameter. Once set,
  * all subsequent RPCs will use Cronet transport. The method is not thread
  * safe.
  */
-+(void)useCronetWithEngine:(cronet_engine *)engine;
++(void)useCronetWithEngine:(stream_engine *)engine;
 
-+(cronet_engine *)cronetEngine;
++(stream_engine *)cronetEngine;
 
 +(BOOL)isUsingCronet;
 

src/objective-c/GRPCClient/GRPCCall+Cronet.m

@@ -35,16 +35,16 @@
 
 #ifdef GRPC_COMPILE_WITH_CRONET
 static BOOL useCronet = NO;
-static cronet_engine *globalCronetEngine;
+static stream_engine *globalCronetEngine;
 
 @implementation GRPCCall (Cronet)
 
-+ (void)useCronetWithEngine:(cronet_engine *)engine {
++ (void)useCronetWithEngine:(stream_engine *)engine {
   useCronet = YES;
   globalCronetEngine = engine;
 }
 
-+ (cronet_engine *)cronetEngine {
++ (stream_engine *)cronetEngine {
   return globalCronetEngine;
 }
 

src/objective-c/GRPCClient/private/GRPCChannel.m

@@ -108,7 +108,7 @@ static grpc_channel_args *BuildChannelArgs(NSDictionary *dictionary) {
 
 #ifdef GRPC_COMPILE_WITH_CRONET
 - (instancetype)initWithHost:(NSString *)host
-                cronetEngine:(cronet_engine *)cronetEngine
+                cronetEngine:(stream_engine *)cronetEngine
                  channelArgs:(NSDictionary *)channelArgs {
   if (!host) {
     [NSException raise:NSInvalidArgumentException format:@"host argument missing"];
@@ -163,7 +163,7 @@ static grpc_channel_args *BuildChannelArgs(NSDictionary *dictionary) {
 #ifdef GRPC_COMPILE_WITH_CRONET
 + (GRPCChannel *)secureCronetChannelWithHost:(NSString *)host
                                  channelArgs:(NSDictionary *)channelArgs {
-  cronet_engine *engine = [GRPCCall cronetEngine];
+  stream_engine *engine = [GRPCCall cronetEngine];
   if (!engine) {
     [NSException raise:NSInvalidArgumentException
                 format:@"cronet_engine is NULL. Set it first."];

src/objective-c/GRPCClient/private/GRPCWrappedCall.m

@@ -105,14 +105,14 @@
   }
   if (self = [super init]) {
     _op.op = GRPC_OP_SEND_MESSAGE;
-    _op.data.send_message = message.grpc_byteBuffer;
+    _op.data.send_message.send_message = message.grpc_byteBuffer;
     _handler = handler;
   }
   return self;
 }
 
 - (void)dealloc {
-  grpc_byte_buffer_destroy(_op.data.send_message);
+  grpc_byte_buffer_destroy(_op.data.send_message.send_message);
 }
 
 @end
@@ -145,7 +145,7 @@
   if (self = [super init]) {
     _op.op = GRPC_OP_RECV_INITIAL_METADATA;
     grpc_metadata_array_init(&_headers);
-    _op.data.recv_initial_metadata = &_headers;
+    _op.data.recv_initial_metadata.recv_initial_metadata = &_headers;
     if (handler) {
       // Prevent reference cycle with _handler
       __weak typeof(self) weakSelf = self;
@@ -177,7 +177,7 @@
 - (instancetype)initWithHandler:(void (^)(grpc_byte_buffer *))handler {
   if (self = [super init]) {
     _op.op = GRPC_OP_RECV_MESSAGE;
-    _op.data.recv_message = &_receivedMessage;
+    _op.data.recv_message.recv_message = &_receivedMessage;
     if (handler) {
       // Prevent reference cycle with _handler
       __weak typeof(self) weakSelf = self;

src/objective-c/tests/CoreCronetEnd2EndTests/CoreCronetEnd2EndTests.m

@@ -94,7 +94,7 @@ static void process_auth_failure(void *state, grpc_auth_context *ctx,
 
 static void cronet_init_client_secure_fullstack(grpc_end2end_test_fixture *f,
                                                 grpc_channel_args *client_args,
-                                                cronet_engine *cronetEngine) {
+                                                stream_engine *cronetEngine) {
   fullstack_secure_fixture_data *ffd = f->fixture_data;
   f->client = grpc_cronet_secure_channel_create(cronetEngine, ffd->localaddr,
                                                 client_args, NULL);
@@ -124,11 +124,13 @@ static void chttp2_tear_down_secure_fullstack(grpc_end2end_test_fixture *f) {
 
 static void cronet_init_client_simple_ssl_secure_fullstack(
     grpc_end2end_test_fixture *f, grpc_channel_args *client_args) {
-  cronet_engine *cronetEngine = [Cronet getGlobalEngine];
+  grpc_exec_ctx ctx = GRPC_EXEC_CTX_INIT;
+  stream_engine *cronetEngine = [Cronet getGlobalEngine];
 
   grpc_channel_args *new_client_args = grpc_channel_args_copy(client_args);
   cronet_init_client_secure_fullstack(f, new_client_args, cronetEngine);
-  grpc_channel_args_destroy(new_client_args);
+  grpc_channel_args_destroy(&ctx, new_client_args);
+  grpc_exec_ctx_finish(&ctx);
 }
 
 static int fail_server_auth_check(grpc_channel_args *server_args) {

src/objective-c/tests/CronetUnitTests/CronetUnitTests.m

@@ -0,0 +1,214 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#import <XCTest/XCTest.h>
+#import <sys/socket.h>
+#import <netinet/in.h>
+
+#import <Cronet/Cronet.h>
+#import <grpc/support/host_port.h>
+#import <grpc/grpc_cronet.h>
+#import <grpc/grpc.h>
+#import "test/core/end2end/cq_verifier.h"
+#import "test/core/util/port.h"
+
+#import <grpc/support/alloc.h>
+#import <grpc/support/log.h>
+
+#import "src/core/lib/channel/channel_args.h"
+#import "src/core/lib/support/env.h"
+#import "src/core/lib/support/string.h"
+#import "src/core/lib/support/tmpfile.h"
+#import "test/core/util/test_config.h"
+
+static void drain_cq(grpc_completion_queue *cq) {
+  grpc_event ev;
+  do {
+    ev = grpc_completion_queue_next(cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL);
+  } while (ev.type != GRPC_QUEUE_SHUTDOWN);
+}
+
+
+@interface CronetUnitTests : XCTestCase
+
+@end
+
+@implementation CronetUnitTests
+
++ (void)setUp {
+  [super setUp];
+
+/***  FILE *roots_file;
+  size_t roots_size = strlen(test_root_cert);*/
+
+  char *argv[] = {"CoreCronetEnd2EndTests"};
+  grpc_test_init(1, argv);
+
+  grpc_init();
+
+  [Cronet setHttp2Enabled:YES];
+  NSURL *url = [[[NSFileManager defaultManager]
+                 URLsForDirectory:NSDocumentDirectory
+                 inDomains:NSUserDomainMask] lastObject];
+  NSLog(@"Documents directory: %@", url);
+  [Cronet start];
+  [Cronet startNetLogToFile:@"Documents/cronet_netlog.json" logBytes:YES];
+}
+
++ (void)tearDown {
+  grpc_shutdown();
+
+  [super tearDown];
+}
+
+- (void)testInternalError {
+  grpc_call *c;
+  grpc_slice request_payload_slice =
+  grpc_slice_from_copied_string("hello world");
+  grpc_byte_buffer *request_payload =
+  grpc_raw_byte_buffer_create(&request_payload_slice, 1);
+  gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5);
+  grpc_metadata meta_c[2] = {
+    {"key1", "val1", 4, 0, {{NULL, NULL, NULL, NULL}}},
+    {"key2", "val2", 4, 0, {{NULL, NULL, NULL, NULL}}}};
+
+  int port = grpc_pick_unused_port_or_die();
+  char *addr;
+  gpr_join_host_port(&addr, "127.0.0.1", port);
+  grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
+  cronet_engine *cronetEngine = [Cronet getGlobalEngine];
+  grpc_channel *client = grpc_cronet_secure_channel_create(cronetEngine, addr,
+                                                           NULL, NULL);
+
+  cq_verifier *cqv = cq_verifier_create(cq);
+  grpc_op ops[6];
+  grpc_op *op;
+  grpc_metadata_array initial_metadata_recv;
+  grpc_metadata_array trailing_metadata_recv;
+  grpc_metadata_array request_metadata_recv;
+  grpc_byte_buffer *response_payload_recv = NULL;
+  grpc_call_details call_details;
+  grpc_status_code status;
+  grpc_call_error error;
+  char *details = NULL;
+  size_t details_capacity = 0;
+
+  c = grpc_channel_create_call(
+                               client, NULL, GRPC_PROPAGATE_DEFAULTS, cq, "/foo",
+                               NULL, deadline, NULL);
+  GPR_ASSERT(c);
+
+  grpc_metadata_array_init(&initial_metadata_recv);
+  grpc_metadata_array_init(&trailing_metadata_recv);
+  grpc_metadata_array_init(&request_metadata_recv);
+  grpc_call_details_init(&call_details);
+
+  memset(ops, 0, sizeof(ops));
+  op = ops;
+  op->op = GRPC_OP_SEND_INITIAL_METADATA;
+  op->data.send_initial_metadata.count = 2;
+  op->data.send_initial_metadata.metadata = meta_c;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_SEND_MESSAGE;
+  op->data.send_message.send_message = request_payload;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_RECV_INITIAL_METADATA;
+  op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_RECV_MESSAGE;
+  op->data.recv_message.recv_message = &response_payload_recv;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
+  op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
+  op->data.recv_status_on_client.status = &status;
+  op->data.recv_status_on_client.status_details = &details;
+  op->data.recv_status_on_client.status_details_capacity = &details_capacity;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  error = grpc_call_start_batch(c, ops, (size_t)(op - ops), (void*)1, NULL);
+  GPR_ASSERT(GRPC_CALL_OK == error);
+
+  dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+    int sl = socket(AF_INET, SOCK_STREAM, 0);
+    GPR_ASSERT(sl >= 0);
+    struct sockaddr_in s_addr;
+    memset(&s_addr, 0, sizeof(s_addr));
+    s_addr.sin_family = AF_INET;
+    s_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+    s_addr.sin_port = htons(port);
+    bind(sl, (struct sockaddr*)&s_addr, sizeof(s_addr));
+    listen(sl, 5);
+    int s = accept(sl, NULL, NULL);
+    sleep(1);
+    close(s);
+    close(sl);
+  });
+
+  CQ_EXPECT_COMPLETION(cqv, (void*)1, 1);
+  cq_verify(cqv);
+
+  GPR_ASSERT(status == GRPC_STATUS_UNAVAILABLE);
+
+  gpr_free(details);
+  grpc_metadata_array_destroy(&initial_metadata_recv);
+  grpc_metadata_array_destroy(&trailing_metadata_recv);
+  grpc_metadata_array_destroy(&request_metadata_recv);
+  grpc_call_details_destroy(&call_details);
+
+  grpc_call_destroy(c);
+
+  cq_verifier_destroy(cqv);
+
+  grpc_byte_buffer_destroy(request_payload);
+  grpc_byte_buffer_destroy(response_payload_recv);
+  
+  grpc_channel_destroy(client);
+  grpc_completion_queue_shutdown(cq);
+  drain_cq(cq);
+  grpc_completion_queue_destroy(cq);
+}
+
+@end

src/objective-c/tests/CronetUnitTests/Info.plist

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+</dict>
+</plist>

src/objective-c/tests/Podfile

@@ -37,13 +37,18 @@ GRPC_LOCAL_SRC = '../../..'
   end
 end
 
-target 'CoreCronetEnd2EndTests' do
+%w(
+  CoreCronetEnd2EndTests
+  CronetUnitTests
+).each do |target_name|
+  target target_name do
     pod 'BoringSSL', :podspec => "#{GRPC_LOCAL_SRC}/src/objective-c", :inhibit_warnings => true
     pod 'CronetFramework', :podspec => "#{GRPC_LOCAL_SRC}/src/objective-c"
     pod 'gRPC-Core', :path => GRPC_LOCAL_SRC
     pod 'gRPC-Core/Cronet-Interface', :path => GRPC_LOCAL_SRC
     pod 'gRPC-Core/Cronet-Implementation', :path => GRPC_LOCAL_SRC
     pod 'gRPC-Core/Tests', :path => GRPC_LOCAL_SRC
+  end
 end
 
 # gRPC-Core.podspec needs to be modified to be successfully used for local development. A Podfile's

src/objective-c/tests/Tests.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		06467F3A8D01EC493D12ADA2 /* libPods-CronetUnitTests.a in Frameworks */ = {isa = PBXBuildFile; fileRef = C6134277D2EB8B380862A03F /* libPods-CronetUnitTests.a */; };
 		09B76D9585ACE7403804D9DC /* libPods-InteropTestsRemoteWithCronet.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 9E9444C764F0FFF64A7EB58E /* libPods-InteropTestsRemoteWithCronet.a */; };
 		0F9232F984C08643FD40C34F /* libPods-InteropTestsRemote.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DBE059B4AC7A51919467EEC0 /* libPods-InteropTestsRemote.a */; };
 		16A9E77B6E336B3C0B9BA6E0 /* libPods-InteropTestsLocalSSL.a in Frameworks */ = {isa = PBXBuildFile; fileRef = DBEDE45BDA60DF1E1C8950C0 /* libPods-InteropTestsLocalSSL.a */; };
@@ -15,6 +16,8 @@
 		3D7C85F6AA68C4A205E3BA16 /* libPods-Tests.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 20DFF2F3C97EF098FE5A3171 /* libPods-Tests.a */; };
 		5E8A5DA71D3840B4000F8BC4 /* CoreCronetEnd2EndTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 5E8A5DA61D3840B4000F8BC4 /* CoreCronetEnd2EndTests.m */; };
 		5E8A5DA91D3840B4000F8BC4 /* libTests.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 635697C71B14FC11007A7283 /* libTests.a */; };
+		5EAD6D271E27047400002378 /* CronetUnitTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 5EAD6D261E27047400002378 /* CronetUnitTests.m */; };
+		5EAD6D291E27047400002378 /* libTests.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 635697C71B14FC11007A7283 /* libTests.a */; };
 		5EE84BF41D4717E40050C6CC /* InteropTestsRemoteWithCronet.m in Sources */ = {isa = PBXBuildFile; fileRef = 5EE84BF31D4717E40050C6CC /* InteropTestsRemoteWithCronet.m */; };
 		5EE84BF61D4717E40050C6CC /* libTests.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 635697C71B14FC11007A7283 /* libTests.a */; };
 		5EE84BFE1D471D400050C6CC /* InteropTests.m in Sources */ = {isa = PBXBuildFile; fileRef = 635ED2EB1B1A3BC400FDE5C3 /* InteropTests.m */; };
@@ -52,6 +55,13 @@
 			remoteGlobalIDString = 635697C61B14FC11007A7283;
 			remoteInfo = Tests;
 		};
+		5EAD6D2A1E27047400002378 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 635697BF1B14FC11007A7283 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 635697C61B14FC11007A7283;
+			remoteInfo = Tests;
+		};
 		5EE84BF71D4717E40050C6CC /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 635697BF1B14FC11007A7283 /* Project object */;
@@ -109,6 +119,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		02192CF1FF9534E3D18C65FC /* Pods-CronetUnitTests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-CronetUnitTests.release.xcconfig"; path = "Pods/Target Support Files/Pods-CronetUnitTests/Pods-CronetUnitTests.release.xcconfig"; sourceTree = "<group>"; };
 		060EF32D7EC0DF67ED617507 /* Pods-Tests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Tests.debug.xcconfig"; path = "Pods/Target Support Files/Pods-Tests/Pods-Tests.debug.xcconfig"; sourceTree = "<group>"; };
 		07D10A965323BEA7FE59A74B /* Pods-RxLibraryUnitTests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RxLibraryUnitTests.debug.xcconfig"; path = "Pods/Target Support Files/Pods-RxLibraryUnitTests/Pods-RxLibraryUnitTests.debug.xcconfig"; sourceTree = "<group>"; };
 		0A4F89D9C90E9C30990218F0 /* Pods.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.release.xcconfig; path = "Pods/Target Support Files/Pods/Pods.release.xcconfig"; sourceTree = "<group>"; };
@@ -117,6 +128,7 @@
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 		20DFF2F3C97EF098FE5A3171 /* libPods-Tests.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-Tests.a"; sourceTree = BUILT_PRODUCTS_DIR; };
 		35F2B6BF3BAE8F0DC4AFD76E /* libPods.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libPods.a; sourceTree = BUILT_PRODUCTS_DIR; };
+		386712AEACF7C2190C4B8B3F /* Pods-CronetUnitTests.cronet.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-CronetUnitTests.cronet.xcconfig"; path = "Pods/Target Support Files/Pods-CronetUnitTests/Pods-CronetUnitTests.cronet.xcconfig"; sourceTree = "<group>"; };
 		3B0861FC805389C52DB260D4 /* Pods-RxLibraryUnitTests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RxLibraryUnitTests.release.xcconfig"; path = "Pods/Target Support Files/Pods-RxLibraryUnitTests/Pods-RxLibraryUnitTests.release.xcconfig"; sourceTree = "<group>"; };
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@@ -127,6 +139,9 @@
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 		5E8A5DA41D3840B4000F8BC4 /* CoreCronetEnd2EndTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = CoreCronetEnd2EndTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		5E8A5DA61D3840B4000F8BC4 /* CoreCronetEnd2EndTests.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = CoreCronetEnd2EndTests.m; sourceTree = "<group>"; };
+		5EAD6D241E27047400002378 /* CronetUnitTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = CronetUnitTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+		5EAD6D261E27047400002378 /* CronetUnitTests.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = CronetUnitTests.m; sourceTree = "<group>"; };
+		5EAD6D281E27047400002378 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		5EE84BF11D4717E40050C6CC /* InteropTestsRemoteWithCronet.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = InteropTestsRemoteWithCronet.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
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 		5EE84BF51D4717E40050C6CC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
@@ -146,6 +161,7 @@
 		63E240CC1B6C4D3A005F3B0E /* InteropTests.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = InteropTests.h; sourceTree = "<group>"; };
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 		63E240CF1B6C63DC005F3B0E /* TestCertificates.bundle */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.plug-in"; path = TestCertificates.bundle; sourceTree = "<group>"; };
+		64F68A9A6A63CC930DD30A6E /* Pods-CronetUnitTests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-CronetUnitTests.debug.xcconfig"; path = "Pods/Target Support Files/Pods-CronetUnitTests/Pods-CronetUnitTests.debug.xcconfig"; sourceTree = "<group>"; };
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@@ -153,6 +169,7 @@
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+		C6134277D2EB8B380862A03F /* libPods-CronetUnitTests.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-CronetUnitTests.a"; sourceTree = BUILT_PRODUCTS_DIR; };
 		CAE086D5B470DA367D415AB0 /* libPods-AllTests.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-AllTests.a"; sourceTree = BUILT_PRODUCTS_DIR; };
 		DBE059B4AC7A51919467EEC0 /* libPods-InteropTestsRemote.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-InteropTestsRemote.a"; sourceTree = BUILT_PRODUCTS_DIR; };
 		DBEDE45BDA60DF1E1C8950C0 /* libPods-InteropTestsLocalSSL.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-InteropTestsLocalSSL.a"; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -177,6 +194,15 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		5EAD6D211E27047400002378 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				5EAD6D291E27047400002378 /* libTests.a in Frameworks */,
+				06467F3A8D01EC493D12ADA2 /* libPods-CronetUnitTests.a in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		5EE84BEE1D4717E40050C6CC /* Frameworks */ = {
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
@@ -254,6 +280,7 @@
 				20DFF2F3C97EF098FE5A3171 /* libPods-Tests.a */,
 				FBD98AC417B9882D32B19F28 /* libPods-CoreCronetEnd2EndTests.a */,
 				9E9444C764F0FFF64A7EB58E /* libPods-InteropTestsRemoteWithCronet.a */,
+				C6134277D2EB8B380862A03F /* libPods-CronetUnitTests.a */,
 			);
 			name = Frameworks;
 			sourceTree = "<group>";
@@ -287,6 +314,9 @@
 				3F27B2E744482771EB93C394 /* Pods-InteropTestsRemoteWithCronet.cronet.xcconfig */,
 				79C68EFFCB5533475D810B79 /* Pods-RxLibraryUnitTests.cronet.xcconfig */,
 				F671D4CAD2864FB203B920B4 /* Pods-Tests.cronet.xcconfig */,
+				64F68A9A6A63CC930DD30A6E /* Pods-CronetUnitTests.debug.xcconfig */,
+				386712AEACF7C2190C4B8B3F /* Pods-CronetUnitTests.cronet.xcconfig */,
+				02192CF1FF9534E3D18C65FC /* Pods-CronetUnitTests.release.xcconfig */,
 			);
 			name = Pods;
 			sourceTree = "<group>";
@@ -299,6 +329,15 @@
 			path = CoreCronetEnd2EndTests;
 			sourceTree = "<group>";
 		};
+		5EAD6D251E27047400002378 /* CronetUnitTests */ = {
+			isa = PBXGroup;
+			children = (
+				5EAD6D261E27047400002378 /* CronetUnitTests.m */,
+				5EAD6D281E27047400002378 /* Info.plist */,
+			);
+			path = CronetUnitTests;
+			sourceTree = "<group>";
+		};
 		5EE84BF21D4717E40050C6CC /* InteropTestsRemoteWithCronet */ = {
 			isa = PBXGroup;
 			children = (
@@ -315,6 +354,7 @@
 				63E240CF1B6C63DC005F3B0E /* TestCertificates.bundle */,
 				5E8A5DA51D3840B4000F8BC4 /* CoreCronetEnd2EndTests */,
 				5EE84BF21D4717E40050C6CC /* InteropTestsRemoteWithCronet */,
+				5EAD6D251E27047400002378 /* CronetUnitTests */,
 				635697C81B14FC11007A7283 /* Products */,
 				51E4650F34F854F41FF053B3 /* Pods */,
 				136D535E19727099B941D7B1 /* Frameworks */,
@@ -332,6 +372,7 @@
 				63DC84431BE152B5000708E8 /* InteropTestsLocalCleartext.xctest */,
 				5E8A5DA41D3840B4000F8BC4 /* CoreCronetEnd2EndTests.xctest */,
 				5EE84BF11D4717E40050C6CC /* InteropTestsRemoteWithCronet.xctest */,
+				5EAD6D241E27047400002378 /* CronetUnitTests.xctest */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -384,6 +425,27 @@
 			productReference = 5E8A5DA41D3840B4000F8BC4 /* CoreCronetEnd2EndTests.xctest */;
 			productType = "com.apple.product-type.bundle.unit-test";
 		};
+		5EAD6D231E27047400002378 /* CronetUnitTests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 5EAD6D2F1E27047400002378 /* Build configuration list for PBXNativeTarget "CronetUnitTests" */;
+			buildPhases = (
+				80E2DDD2EC04A4009F45E933 /* [CP] Check Pods Manifest.lock */,
+				5EAD6D201E27047400002378 /* Sources */,
+				5EAD6D211E27047400002378 /* Frameworks */,
+				5EAD6D221E27047400002378 /* Resources */,
+				A686B9967BB4CB81B1CBF8F8 /* [CP] Embed Pods Frameworks */,
+				051806D6A59B19C8A0B76BED /* [CP] Copy Pods Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				5EAD6D2B1E27047400002378 /* PBXTargetDependency */,
+			);
+			name = CronetUnitTests;
+			productName = CronetUnitTests;
+			productReference = 5EAD6D241E27047400002378 /* CronetUnitTests.xctest */;
+			productType = "com.apple.product-type.bundle.unit-test";
+		};
 		5EE84BF01D4717E40050C6CC /* InteropTestsRemoteWithCronet */ = {
 			isa = PBXNativeTarget;
 			buildConfigurationList = 5EE84BFB1D4717E40050C6CC /* Build configuration list for PBXNativeTarget "InteropTestsRemoteWithCronet" */;
@@ -541,6 +603,9 @@
 					5E8A5DA31D3840B4000F8BC4 = {
 						CreatedOnToolsVersion = 7.3.1;
 					};
+					5EAD6D231E27047400002378 = {
+						CreatedOnToolsVersion = 7.3.1;
+					};
 					5EE84BF01D4717E40050C6CC = {
 						CreatedOnToolsVersion = 7.3.1;
 					};
@@ -584,6 +649,7 @@
 				63DC84421BE152B5000708E8 /* InteropTestsLocalCleartext */,
 				5E8A5DA31D3840B4000F8BC4 /* CoreCronetEnd2EndTests */,
 				5EE84BF01D4717E40050C6CC /* InteropTestsRemoteWithCronet */,
+				5EAD6D231E27047400002378 /* CronetUnitTests */,
 			);
 		};
 /* End PBXProject section */
@@ -596,6 +662,13 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		5EAD6D221E27047400002378 /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		5EE84BEF1D4717E40050C6CC /* Resources */ = {
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -643,6 +716,21 @@
 /* End PBXResourcesBuildPhase section */
 
 /* Begin PBXShellScriptBuildPhase section */
+		051806D6A59B19C8A0B76BED /* [CP] Copy Pods Resources */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "[CP] Copy Pods Resources";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-CronetUnitTests/Pods-CronetUnitTests-resources.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
 		31F8D1C407195CBF0C02929B /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
@@ -670,7 +758,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		4F5690DC0E6AD6663FE78B8B /* [CP] Embed Pods Frameworks */ = {
@@ -700,7 +788,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		5F14F59509E10C2852014F9E /* [CP] Embed Pods Frameworks */ = {
@@ -760,7 +848,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		796680C7599CB4ED736DD62A /* [CP] Check Pods Manifest.lock */ = {
@@ -775,7 +863,22 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
+			showEnvVarsInLog = 0;
+		};
+		80E2DDD2EC04A4009F45E933 /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "[CP] Check Pods Manifest.lock";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		8AD3130D3C58A0FB32FF2A36 /* [CP] Copy Pods Resources */ = {
@@ -820,7 +923,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		A441F71824DCB9D0CA297748 /* [CP] Copy Pods Resources */ = {
@@ -838,6 +941,21 @@
 			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-AllTests/Pods-AllTests-resources.sh\"\n";
 			showEnvVarsInLog = 0;
 		};
+		A686B9967BB4CB81B1CBF8F8 /* [CP] Embed Pods Frameworks */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "[CP] Embed Pods Frameworks";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods-CronetUnitTests/Pods-CronetUnitTests-frameworks.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
 		A8E3AC66DF770B774114A30E /* [CP] Embed Pods Frameworks */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
@@ -880,7 +998,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		C0F7B1FF6F88CC5FBF362F4C /* [CP] Check Pods Manifest.lock */ = {
@@ -895,7 +1013,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 		C2E09DC4BD239F71160F0CC1 /* [CP] Copy Pods Resources */ = {
@@ -985,7 +1103,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [[ $? != 0 ]] ; then\n    cat << EOM\nerror: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\nEOM\n    exit 1\nfi\n";
+			shellScript = "diff \"${PODS_ROOT}/../Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n";
 			showEnvVarsInLog = 0;
 		};
 /* End PBXShellScriptBuildPhase section */
@@ -999,6 +1117,14 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		5EAD6D201E27047400002378 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				5EAD6D271E27047400002378 /* CronetUnitTests.m in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 		5EE84BED1D4717E40050C6CC /* Sources */ = {
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
@@ -1073,6 +1199,11 @@
 			target = 635697C61B14FC11007A7283 /* Tests */;
 			targetProxy = 5E8A5DAA1D3840B4000F8BC4 /* PBXContainerItemProxy */;
 		};
+		5EAD6D2B1E27047400002378 /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 635697C61B14FC11007A7283 /* Tests */;
+			targetProxy = 5EAD6D2A1E27047400002378 /* PBXContainerItemProxy */;
+		};
 		5EE84BF81D4717E40050C6CC /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
 			target = 635697C61B14FC11007A7283 /* Tests */;
@@ -1138,6 +1269,53 @@
 			};
 			name = Release;
 		};
+		5EAD6D2C1E27047400002378 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 64F68A9A6A63CC930DD30A6E /* Pods-CronetUnitTests.debug.xcconfig */;
+			buildSettings = {
+				CLANG_ANALYZER_NONNULL = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_TESTABILITY = YES;
+				INFOPLIST_FILE = CronetUnitTests/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.3;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = io.grpc.CronetUnitTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				USER_HEADER_SEARCH_PATHS = "\"${PODS_ROOT}/../../../..\" $(inherited)";
+			};
+			name = Debug;
+		};
+		5EAD6D2D1E27047400002378 /* Cronet */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 386712AEACF7C2190C4B8B3F /* Pods-CronetUnitTests.cronet.xcconfig */;
+			buildSettings = {
+				CLANG_ANALYZER_NONNULL = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				INFOPLIST_FILE = CronetUnitTests/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.3;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = io.grpc.CronetUnitTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				USER_HEADER_SEARCH_PATHS = "\"${PODS_ROOT}/../../../..\" $(inherited)";
+			};
+			name = Cronet;
+		};
+		5EAD6D2E1E27047400002378 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 02192CF1FF9534E3D18C65FC /* Pods-CronetUnitTests.release.xcconfig */;
+			buildSettings = {
+				CLANG_ANALYZER_NONNULL = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				INFOPLIST_FILE = CronetUnitTests/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.3;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = io.grpc.CronetUnitTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				USER_HEADER_SEARCH_PATHS = "\"${PODS_ROOT}/../../../..\" $(inherited)";
+			};
+			name = Release;
+		};
 		5EC3C7A01D4FC18C000330E2 /* Cronet */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
@@ -1597,6 +1775,16 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		5EAD6D2F1E27047400002378 /* Build configuration list for PBXNativeTarget "CronetUnitTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				5EAD6D2C1E27047400002378 /* Debug */,
+				5EAD6D2D1E27047400002378 /* Cronet */,
+				5EAD6D2E1E27047400002378 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 		5EE84BFB1D4717E40050C6CC /* Build configuration list for PBXNativeTarget "InteropTestsRemoteWithCronet" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (

src/objective-c/tests/Tests.xcodeproj/xcshareddata/xcschemes/CronetUnitTests.xcscheme

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0730"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "5EAD6D231E27047400002378"
+               BuildableName = "CronetUnitTests.xctest"
+               BlueprintName = "CronetUnitTests"
+               ReferencedContainer = "container:Tests.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

src/php/README.md

@@ -163,6 +163,13 @@ of this repo. The plugin can be found in the `bins/opt` directory. We are
 planning to provide a better way to download and install the plugin
 in the future.
 
+You can also just build the gRPC PHP protoc plugin by running:
+
+```sh
+$ cd grpc
+$ make grpc_php_plugin
+```
+
 
 ### Client Stub