mirror of https://github.com/grpc/grpc.git
Guantao Liu
6 years ago
commit
7447bad5cd
294 changed files with 6664 additions and 2427 deletions
@ -1,71 +1,105 @@ |
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"""Generates and compiles C++ grpc stubs from proto_library rules.""" |
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|
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load("//bazel:generate_cc.bzl", "generate_cc") |
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load("//bazel:protobuf.bzl", "well_known_proto_libs") |
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|
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def cc_grpc_library(name, srcs, deps, proto_only, well_known_protos, generate_mocks = False, use_external = False, **kwargs): |
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"""Generates C++ grpc classes from a .proto file. |
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def cc_grpc_library( |
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name, |
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srcs, |
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deps, |
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proto_only = False, |
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well_known_protos = False, |
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generate_mocks = False, |
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use_external = False, |
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grpc_only = False, |
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**kwargs): |
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"""Generates C++ grpc classes for services defined in a proto file. |
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|
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Assumes the generated classes will be used in cc_api_version = 2. |
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If grpc_only is True, this rule is compatible with proto_library and |
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cc_proto_library native rules such that it expects proto_library target |
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as srcs argument and generates only grpc library classes, expecting |
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protobuf messages classes library (cc_proto_library target) to be passed in |
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deps argument. By default grpc_only is False which makes this rule to behave |
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in a backwards-compatible mode (trying to generate both proto and grpc |
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classes). |
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|
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Arguments: |
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name: name of rule. |
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srcs: a single proto_library, which wraps the .proto files with services. |
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deps: a list of C++ proto_library (or cc_proto_library) which provides |
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the compiled code of any message that the services depend on. |
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well_known_protos: Should this library additionally depend on well known |
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protos |
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use_external: When True the grpc deps are prefixed with //external. This |
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allows grpc to be used as a dependency in other bazel projects. |
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generate_mocks: When True, Google Mock code for client stub is generated. |
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**kwargs: rest of arguments, e.g., compatible_with and visibility. |
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""" |
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if len(srcs) > 1: |
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fail("Only one srcs value supported", "srcs") |
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Assumes the generated classes will be used in cc_api_version = 2. |
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|
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proto_target = "_" + name + "_only" |
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codegen_target = "_" + name + "_codegen" |
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codegen_grpc_target = "_" + name + "_grpc_codegen" |
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proto_deps = ["_" + dep + "_only" for dep in deps if dep.find(':') == -1] |
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proto_deps += [dep.split(':')[0] + ':' + "_" + dep.split(':')[1] + "_only" for dep in deps if dep.find(':') != -1] |
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Args: |
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name (str): Name of rule. |
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srcs (list): A single .proto file which contains services definitions, |
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or if grpc_only parameter is True, a single proto_library which |
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contains services descriptors. |
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deps (list): A list of C++ proto_library (or cc_proto_library) which |
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provides the compiled code of any message that the services depend on. |
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proto_only (bool): If True, create only C++ proto classes library, |
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avoid creating C++ grpc classes library (expect it in deps). |
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Deprecated, use native cc_proto_library instead. False by default. |
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well_known_protos (bool): Should this library additionally depend on |
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well known protos. Deprecated, the well known protos should be |
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specified as explicit dependencies of the proto_library target |
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(passed in srcs parameter) instead. False by default. |
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generate_mocks (bool): when True, Google Mock code for client stub is |
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generated. False by default. |
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use_external (bool): Not used. |
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grpc_only (bool): if True, generate only grpc library, expecting |
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protobuf messages library (cc_proto_library target) to be passed as |
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deps. False by default (will become True by default eventually). |
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**kwargs: rest of arguments, e.g., compatible_with and visibility |
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""" |
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if len(srcs) > 1: |
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fail("Only one srcs value supported", "srcs") |
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if grpc_only and proto_only: |
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fail("A mutualy exclusive configuration is specified: grpc_only = True and proto_only = True") |
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|
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native.proto_library( |
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name = proto_target, |
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srcs = srcs, |
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deps = proto_deps, |
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**kwargs |
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) |
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extra_deps = [] |
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proto_targets = [] |
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|
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generate_cc( |
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name = codegen_target, |
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srcs = [proto_target], |
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well_known_protos = well_known_protos, |
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**kwargs |
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) |
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if not grpc_only: |
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proto_target = "_" + name + "_only" |
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cc_proto_target = name if proto_only else "_" + name + "_cc_proto" |
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|
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if not proto_only: |
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plugin = "@com_github_grpc_grpc//:grpc_cpp_plugin" |
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generate_cc( |
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name = codegen_grpc_target, |
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srcs = [proto_target], |
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plugin = plugin, |
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well_known_protos = well_known_protos, |
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generate_mocks = generate_mocks, |
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**kwargs |
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) |
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grpc_deps = ["@com_github_grpc_grpc//:grpc++_codegen_proto", |
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"//external:protobuf"] |
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native.cc_library( |
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name = name, |
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srcs = [":" + codegen_grpc_target, ":" + codegen_target], |
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hdrs = [":" + codegen_grpc_target, ":" + codegen_target], |
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deps = deps + grpc_deps, |
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**kwargs |
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) |
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else: |
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native.cc_library( |
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name = name, |
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srcs = [":" + codegen_target], |
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hdrs = [":" + codegen_target], |
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deps = deps + ["//external:protobuf"], |
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**kwargs |
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) |
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proto_deps = ["_" + dep + "_only" for dep in deps if dep.find(":") == -1] |
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proto_deps += [dep.split(":")[0] + ":" + "_" + dep.split(":")[1] + "_only" for dep in deps if dep.find(":") != -1] |
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if well_known_protos: |
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proto_deps += well_known_proto_libs() |
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|
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native.proto_library( |
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name = proto_target, |
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srcs = srcs, |
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deps = proto_deps, |
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**kwargs |
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) |
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|
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native.cc_proto_library( |
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name = cc_proto_target, |
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deps = [":" + proto_target], |
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**kwargs |
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) |
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extra_deps.append(":" + cc_proto_target) |
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proto_targets.append(proto_target) |
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else: |
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if not srcs: |
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fail("srcs cannot be empty", "srcs") |
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proto_targets += srcs |
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|
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if not proto_only: |
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codegen_grpc_target = "_" + name + "_grpc_codegen" |
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generate_cc( |
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name = codegen_grpc_target, |
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srcs = proto_targets, |
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plugin = "@com_github_grpc_grpc//:grpc_cpp_plugin", |
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well_known_protos = well_known_protos, |
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generate_mocks = generate_mocks, |
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**kwargs |
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) |
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|
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native.cc_library( |
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name = name, |
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srcs = [":" + codegen_grpc_target], |
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hdrs = [":" + codegen_grpc_target], |
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deps = deps + |
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extra_deps + |
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["@com_github_grpc_grpc//:grpc++_codegen_proto"], |
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**kwargs |
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) |
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|
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@ -0,0 +1,281 @@ |
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/*
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* |
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* Copyright 2015 gRPC authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
|
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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|
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#ifndef GRPCPP_SECURITY_CREDENTIALS_IMPL_H |
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#define GRPCPP_SECURITY_CREDENTIALS_IMPL_H |
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|
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#include <map> |
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#include <memory> |
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#include <vector> |
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|
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#include <grpc/grpc_security_constants.h> |
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#include <grpcpp/impl/codegen/client_interceptor.h> |
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#include <grpcpp/impl/codegen/grpc_library.h> |
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#include <grpcpp/security/auth_context.h> |
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#include <grpcpp/support/channel_arguments.h> |
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#include <grpcpp/support/status.h> |
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#include <grpcpp/support/string_ref.h> |
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|
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struct grpc_call; |
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|
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namespace grpc_impl { |
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|
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class Channel; |
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class ChannelCredentials; |
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class CallCredentials; |
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class SecureCallCredentials; |
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class SecureChannelCredentials; |
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|
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std::shared_ptr<::grpc::Channel> CreateCustomChannelImpl( |
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const grpc::string& target, |
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const std::shared_ptr<ChannelCredentials>& creds, |
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const grpc::ChannelArguments& args); |
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|
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namespace experimental { |
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std::shared_ptr<::grpc::Channel> CreateCustomChannelWithInterceptors( |
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const grpc::string& target, |
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const std::shared_ptr<ChannelCredentials>& creds, |
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const grpc::ChannelArguments& args, |
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std::vector< |
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std::unique_ptr<grpc::experimental::ClientInterceptorFactoryInterface>> |
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interceptor_creators); |
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} |
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|
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/// A channel credentials object encapsulates all the state needed by a client
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/// to authenticate with a server for a given channel.
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/// It can make various assertions, e.g., about the client’s identity, role
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/// for all the calls on that channel.
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///
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/// \see https://grpc.io/docs/guides/auth.html
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class ChannelCredentials : private grpc::GrpcLibraryCodegen { |
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public: |
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ChannelCredentials(); |
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~ChannelCredentials(); |
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|
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protected: |
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friend std::shared_ptr<ChannelCredentials> CompositeChannelCredentials( |
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const std::shared_ptr<ChannelCredentials>& channel_creds, |
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const std::shared_ptr<CallCredentials>& call_creds); |
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|
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virtual SecureChannelCredentials* AsSecureCredentials() = 0; |
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|
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private: |
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friend std::shared_ptr<::grpc::Channel> CreateCustomChannelImpl( |
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const grpc::string& target, |
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const std::shared_ptr<ChannelCredentials>& creds, |
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const grpc::ChannelArguments& args); |
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|
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friend std::shared_ptr<::grpc::Channel> |
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grpc_impl::experimental::CreateCustomChannelWithInterceptors( |
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const grpc::string& target, |
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const std::shared_ptr<ChannelCredentials>& creds, |
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const grpc::ChannelArguments& args, |
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std::vector<std::unique_ptr< |
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grpc::experimental::ClientInterceptorFactoryInterface>> |
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interceptor_creators); |
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|
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virtual std::shared_ptr<::grpc::Channel> CreateChannelImpl( |
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const grpc::string& target, const grpc::ChannelArguments& args) = 0; |
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|
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// This function should have been a pure virtual function, but it is
|
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// implemented as a virtual function so that it does not break API.
|
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virtual std::shared_ptr<::grpc::Channel> CreateChannelWithInterceptors( |
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const grpc::string& target, const grpc::ChannelArguments& args, |
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std::vector<std::unique_ptr< |
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grpc::experimental::ClientInterceptorFactoryInterface>> |
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interceptor_creators) { |
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return nullptr; |
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} |
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}; |
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|
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/// A call credentials object encapsulates the state needed by a client to
|
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/// authenticate with a server for a given call on a channel.
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///
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/// \see https://grpc.io/docs/guides/auth.html
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class CallCredentials : private grpc::GrpcLibraryCodegen { |
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public: |
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CallCredentials(); |
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~CallCredentials(); |
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|
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/// Apply this instance's credentials to \a call.
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virtual bool ApplyToCall(grpc_call* call) = 0; |
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|
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protected: |
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friend std::shared_ptr<ChannelCredentials> CompositeChannelCredentials( |
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const std::shared_ptr<ChannelCredentials>& channel_creds, |
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const std::shared_ptr<CallCredentials>& call_creds); |
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|
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friend std::shared_ptr<CallCredentials> CompositeCallCredentials( |
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const std::shared_ptr<CallCredentials>& creds1, |
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const std::shared_ptr<CallCredentials>& creds2); |
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|
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virtual SecureCallCredentials* AsSecureCredentials() = 0; |
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}; |
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|
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/// Options used to build SslCredentials.
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struct SslCredentialsOptions { |
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/// The buffer containing the PEM encoding of the server root certificates. If
|
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/// this parameter is empty, the default roots will be used. The default
|
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/// roots can be overridden using the \a GRPC_DEFAULT_SSL_ROOTS_FILE_PATH
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/// environment variable pointing to a file on the file system containing the
|
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/// roots.
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grpc::string pem_root_certs; |
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|
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/// The buffer containing the PEM encoding of the client's private key. This
|
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/// parameter can be empty if the client does not have a private key.
|
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grpc::string pem_private_key; |
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|
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/// The buffer containing the PEM encoding of the client's certificate chain.
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/// This parameter can be empty if the client does not have a certificate
|
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/// chain.
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grpc::string pem_cert_chain; |
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}; |
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|
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// Factories for building different types of Credentials The functions may
|
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// return empty shared_ptr when credentials cannot be created. If a
|
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// Credentials pointer is returned, it can still be invalid when used to create
|
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// a channel. A lame channel will be created then and all rpcs will fail on it.
|
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|
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/// Builds credentials with reasonable defaults.
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///
|
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/// \warning Only use these credentials when connecting to a Google endpoint.
|
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/// Using these credentials to connect to any other service may result in this
|
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/// service being able to impersonate your client for requests to Google
|
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/// services.
|
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std::shared_ptr<ChannelCredentials> GoogleDefaultCredentials(); |
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|
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/// Builds SSL Credentials given SSL specific options
|
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std::shared_ptr<ChannelCredentials> SslCredentials( |
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const SslCredentialsOptions& options); |
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|
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/// Builds credentials for use when running in GCE
|
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///
|
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/// \warning Only use these credentials when connecting to a Google endpoint.
|
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/// Using these credentials to connect to any other service may result in this
|
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/// service being able to impersonate your client for requests to Google
|
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/// services.
|
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std::shared_ptr<CallCredentials> GoogleComputeEngineCredentials(); |
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|
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constexpr long kMaxAuthTokenLifetimeSecs = 3600; |
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|
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/// Builds Service Account JWT Access credentials.
|
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/// json_key is the JSON key string containing the client's private key.
|
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/// token_lifetime_seconds is the lifetime in seconds of each Json Web Token
|
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/// (JWT) created with this credentials. It should not exceed
|
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/// \a kMaxAuthTokenLifetimeSecs or will be cropped to this value.
|
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std::shared_ptr<CallCredentials> ServiceAccountJWTAccessCredentials( |
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const grpc::string& json_key, |
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long token_lifetime_seconds = grpc_impl::kMaxAuthTokenLifetimeSecs); |
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|
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/// Builds refresh token credentials.
|
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/// json_refresh_token is the JSON string containing the refresh token along
|
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/// with a client_id and client_secret.
|
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///
|
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/// \warning Only use these credentials when connecting to a Google endpoint.
|
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/// Using these credentials to connect to any other service may result in this
|
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/// service being able to impersonate your client for requests to Google
|
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/// services.
|
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std::shared_ptr<CallCredentials> GoogleRefreshTokenCredentials( |
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const grpc::string& json_refresh_token); |
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|
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/// Builds access token credentials.
|
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/// access_token is an oauth2 access token that was fetched using an out of band
|
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/// mechanism.
|
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///
|
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/// \warning Only use these credentials when connecting to a Google endpoint.
|
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/// Using these credentials to connect to any other service may result in this
|
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/// service being able to impersonate your client for requests to Google
|
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/// services.
|
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std::shared_ptr<CallCredentials> AccessTokenCredentials( |
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const grpc::string& access_token); |
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|
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/// Builds IAM credentials.
|
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///
|
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/// \warning Only use these credentials when connecting to a Google endpoint.
|
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/// Using these credentials to connect to any other service may result in this
|
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/// service being able to impersonate your client for requests to Google
|
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/// services.
|
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std::shared_ptr<CallCredentials> GoogleIAMCredentials( |
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const grpc::string& authorization_token, |
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const grpc::string& authority_selector); |
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|
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/// Combines a channel credentials and a call credentials into a composite
|
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/// channel credentials.
|
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std::shared_ptr<ChannelCredentials> CompositeChannelCredentials( |
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const std::shared_ptr<ChannelCredentials>& channel_creds, |
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const std::shared_ptr<CallCredentials>& call_creds); |
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|
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/// Combines two call credentials objects into a composite call credentials.
|
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std::shared_ptr<CallCredentials> CompositeCallCredentials( |
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const std::shared_ptr<CallCredentials>& creds1, |
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const std::shared_ptr<CallCredentials>& creds2); |
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|
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/// Credentials for an unencrypted, unauthenticated channel
|
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std::shared_ptr<ChannelCredentials> InsecureChannelCredentials(); |
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|
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/// Credentials for a channel using Cronet.
|
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std::shared_ptr<ChannelCredentials> CronetChannelCredentials(void* engine); |
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|
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/// User defined metadata credentials.
|
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class MetadataCredentialsPlugin { |
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public: |
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virtual ~MetadataCredentialsPlugin() {} |
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|
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/// If this method returns true, the Process function will be scheduled in
|
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/// a different thread from the one processing the call.
|
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virtual bool IsBlocking() const { return true; } |
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|
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/// Type of credentials this plugin is implementing.
|
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virtual const char* GetType() const { return ""; } |
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|
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/// Gets the auth metatada produced by this plugin.
|
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/// The fully qualified method name is:
|
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/// service_url + "/" + method_name.
|
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/// The channel_auth_context contains (among other things), the identity of
|
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/// the server.
|
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virtual grpc::Status GetMetadata( |
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grpc::string_ref service_url, grpc::string_ref method_name, |
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const grpc::AuthContext& channel_auth_context, |
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std::multimap<grpc::string, grpc::string>* metadata) = 0; |
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}; |
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|
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std::shared_ptr<CallCredentials> MetadataCredentialsFromPlugin( |
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std::unique_ptr<MetadataCredentialsPlugin> plugin); |
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|
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namespace experimental { |
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|
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/// Options used to build AltsCredentials.
|
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struct AltsCredentialsOptions { |
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/// service accounts of target endpoint that will be acceptable
|
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/// by the client. If service accounts are provided and none of them matches
|
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/// that of the server, authentication will fail.
|
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std::vector<grpc::string> target_service_accounts; |
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}; |
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|
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/// Builds ALTS Credentials given ALTS specific options
|
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std::shared_ptr<ChannelCredentials> AltsCredentials( |
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const AltsCredentialsOptions& options); |
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|
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/// Builds Local Credentials.
|
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std::shared_ptr<ChannelCredentials> LocalCredentials( |
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grpc_local_connect_type type); |
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|
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} // namespace experimental
|
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} // namespace grpc_impl
|
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|
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#endif // GRPCPP_SECURITY_CREDENTIALS_IMPL_H
|
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@ -0,0 +1,152 @@ |
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/*
|
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* |
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* Copyright 2015 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
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*/ |
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|
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#ifndef GRPCPP_SUPPORT_CHANNEL_ARGUMENTS_IMPL_H |
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#define GRPCPP_SUPPORT_CHANNEL_ARGUMENTS_IMPL_H |
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|
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#include <list> |
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#include <vector> |
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|
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#include <grpc/compression.h> |
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#include <grpc/grpc.h> |
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#include <grpcpp/resource_quota.h> |
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#include <grpcpp/support/config.h> |
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|
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namespace grpc { |
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namespace testing { |
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class ChannelArgumentsTest; |
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} // namespace testing
|
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} // namespace grpc
|
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|
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namespace grpc_impl { |
||||
|
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class SecureChannelCredentials; |
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|
||||
/// Options for channel creation. The user can use generic setters to pass
|
||||
/// key value pairs down to C channel creation code. For gRPC related options,
|
||||
/// concrete setters are provided.
|
||||
class ChannelArguments { |
||||
public: |
||||
ChannelArguments(); |
||||
~ChannelArguments(); |
||||
|
||||
ChannelArguments(const ChannelArguments& other); |
||||
ChannelArguments& operator=(ChannelArguments other) { |
||||
Swap(other); |
||||
return *this; |
||||
} |
||||
|
||||
void Swap(ChannelArguments& other); |
||||
|
||||
/// Dump arguments in this instance to \a channel_args. Does not take
|
||||
/// ownership of \a channel_args.
|
||||
///
|
||||
/// Note that the underlying arguments are shared. Changes made to either \a
|
||||
/// channel_args or this instance would be reflected on both.
|
||||
void SetChannelArgs(grpc_channel_args* channel_args) const; |
||||
|
||||
// gRPC specific channel argument setters
|
||||
/// Set target name override for SSL host name checking. This option is for
|
||||
/// testing only and should never be used in production.
|
||||
void SetSslTargetNameOverride(const grpc::string& name); |
||||
// TODO(yangg) add flow control options
|
||||
/// Set the compression algorithm for the channel.
|
||||
void SetCompressionAlgorithm(grpc_compression_algorithm algorithm); |
||||
|
||||
/// Set the grpclb fallback timeout (in ms) for the channel. If this amount
|
||||
/// of time has passed but we have not gotten any non-empty \a serverlist from
|
||||
/// the balancer, we will fall back to use the backend address(es) returned by
|
||||
/// the resolver.
|
||||
void SetGrpclbFallbackTimeout(int fallback_timeout); |
||||
|
||||
/// For client channel's, the socket mutator operates on
|
||||
/// "channel" sockets. For server's, the socket mutator operates
|
||||
/// only on "listen" sockets.
|
||||
/// TODO(apolcyn): allow socket mutators to also operate
|
||||
/// on server "channel" sockets, and adjust the socket mutator
|
||||
/// object to be more speficic about which type of socket
|
||||
/// it should operate on.
|
||||
void SetSocketMutator(grpc_socket_mutator* mutator); |
||||
|
||||
/// Set the string to prepend to the user agent.
|
||||
void SetUserAgentPrefix(const grpc::string& user_agent_prefix); |
||||
|
||||
/// Set the buffer pool to be attached to the constructed channel.
|
||||
void SetResourceQuota(const grpc::ResourceQuota& resource_quota); |
||||
|
||||
/// Set 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.
|
||||
void SetLoadBalancingPolicyName(const grpc::string& lb_policy_name); |
||||
|
||||
/// Set service config in JSON form.
|
||||
/// Primarily meant for use in unit tests.
|
||||
void SetServiceConfigJSON(const grpc::string& service_config_json); |
||||
|
||||
// Generic channel argument setters. Only for advanced use cases.
|
||||
/// Set an integer argument \a value under \a key.
|
||||
void SetInt(const grpc::string& key, int value); |
||||
|
||||
// Generic channel argument setter. Only for advanced use cases.
|
||||
/// Set a pointer argument \a value under \a key. Owership is not transferred.
|
||||
void SetPointer(const grpc::string& key, void* value); |
||||
|
||||
void SetPointerWithVtable(const grpc::string& key, void* value, |
||||
const grpc_arg_pointer_vtable* vtable); |
||||
|
||||
/// Set a textual argument \a value under \a key.
|
||||
void SetString(const grpc::string& key, const grpc::string& value); |
||||
|
||||
/// Return (by value) a C \a grpc_channel_args structure which points to
|
||||
/// arguments owned by this \a ChannelArguments instance
|
||||
grpc_channel_args c_channel_args() const { |
||||
grpc_channel_args out; |
||||
out.num_args = args_.size(); |
||||
out.args = args_.empty() ? NULL : const_cast<grpc_arg*>(&args_[0]); |
||||
return out; |
||||
} |
||||
|
||||
private: |
||||
friend class grpc_impl::SecureChannelCredentials; |
||||
friend class grpc::testing::ChannelArgumentsTest; |
||||
|
||||
/// Default pointer argument operations.
|
||||
struct PointerVtableMembers { |
||||
static void* Copy(void* in) { return in; } |
||||
static void Destroy(void* in) {} |
||||
static int Compare(void* a, void* b) { |
||||
if (a < b) return -1; |
||||
if (a > b) return 1; |
||||
return 0; |
||||
} |
||||
}; |
||||
|
||||
// Returns empty string when it is not set.
|
||||
grpc::string GetSslTargetNameOverride() const; |
||||
|
||||
std::vector<grpc_arg> args_; |
||||
std::list<grpc::string> strings_; |
||||
}; |
||||
|
||||
} // namespace grpc_impl
|
||||
|
||||
#endif // GRPCPP_SUPPORT_CHANNEL_ARGUMENTS_IMPL_H
|
||||
@ -0,0 +1,154 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2019 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#ifndef GRPC_INTERNAL_COMPILER_CPP_PLUGIN_H |
||||
#define GRPC_INTERNAL_COMPILER_CPP_PLUGIN_H |
||||
|
||||
#include <memory> |
||||
#include <sstream> |
||||
|
||||
#include "src/compiler/config.h" |
||||
|
||||
#include "src/compiler/cpp_generator.h" |
||||
#include "src/compiler/generator_helpers.h" |
||||
#include "src/compiler/protobuf_plugin.h" |
||||
|
||||
// Cpp Generator for Protobug IDL
|
||||
class CppGrpcGenerator : public grpc::protobuf::compiler::CodeGenerator { |
||||
public: |
||||
CppGrpcGenerator() {} |
||||
virtual ~CppGrpcGenerator() {} |
||||
|
||||
virtual bool Generate(const grpc::protobuf::FileDescriptor* file, |
||||
const grpc::string& parameter, |
||||
grpc::protobuf::compiler::GeneratorContext* context, |
||||
grpc::string* error) const { |
||||
if (file->options().cc_generic_services()) { |
||||
*error = |
||||
"cpp grpc proto compiler plugin does not work with generic " |
||||
"services. To generate cpp grpc APIs, please set \"" |
||||
"cc_generic_service = false\"."; |
||||
return false; |
||||
} |
||||
|
||||
grpc_cpp_generator::Parameters generator_parameters; |
||||
generator_parameters.use_system_headers = true; |
||||
generator_parameters.generate_mock_code = false; |
||||
generator_parameters.include_import_headers = false; |
||||
|
||||
ProtoBufFile pbfile(file); |
||||
|
||||
if (!parameter.empty()) { |
||||
std::vector<grpc::string> parameters_list = |
||||
grpc_generator::tokenize(parameter, ","); |
||||
for (auto parameter_string = parameters_list.begin(); |
||||
parameter_string != parameters_list.end(); parameter_string++) { |
||||
std::vector<grpc::string> param = |
||||
grpc_generator::tokenize(*parameter_string, "="); |
||||
if (param[0] == "services_namespace") { |
||||
generator_parameters.services_namespace = param[1]; |
||||
} else if (param[0] == "use_system_headers") { |
||||
if (param[1] == "true") { |
||||
generator_parameters.use_system_headers = true; |
||||
} else if (param[1] == "false") { |
||||
generator_parameters.use_system_headers = false; |
||||
} else { |
||||
*error = grpc::string("Invalid parameter: ") + *parameter_string; |
||||
return false; |
||||
} |
||||
} else if (param[0] == "grpc_search_path") { |
||||
generator_parameters.grpc_search_path = param[1]; |
||||
} else if (param[0] == "generate_mock_code") { |
||||
if (param[1] == "true") { |
||||
generator_parameters.generate_mock_code = true; |
||||
} else if (param[1] != "false") { |
||||
*error = grpc::string("Invalid parameter: ") + *parameter_string; |
||||
return false; |
||||
} |
||||
} else if (param[0] == "gmock_search_path") { |
||||
generator_parameters.gmock_search_path = param[1]; |
||||
} else if (param[0] == "additional_header_includes") { |
||||
generator_parameters.additional_header_includes = |
||||
grpc_generator::tokenize(param[1], ":"); |
||||
} else if (param[0] == "message_header_extension") { |
||||
generator_parameters.message_header_extension = param[1]; |
||||
} else if (param[0] == "include_import_headers") { |
||||
if (param[1] == "true") { |
||||
generator_parameters.include_import_headers = true; |
||||
} else if (param[1] != "false") { |
||||
*error = grpc::string("Invalid parameter: ") + *parameter_string; |
||||
return false; |
||||
} |
||||
} else { |
||||
*error = grpc::string("Unknown parameter: ") + *parameter_string; |
||||
return false; |
||||
} |
||||
} |
||||
} |
||||
|
||||
grpc::string file_name = grpc_generator::StripProto(file->name()); |
||||
|
||||
grpc::string header_code = |
||||
grpc_cpp_generator::GetHeaderPrologue(&pbfile, generator_parameters) + |
||||
grpc_cpp_generator::GetHeaderIncludes(&pbfile, generator_parameters) + |
||||
grpc_cpp_generator::GetHeaderServices(&pbfile, generator_parameters) + |
||||
grpc_cpp_generator::GetHeaderEpilogue(&pbfile, generator_parameters); |
||||
std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> header_output( |
||||
context->Open(file_name + ".grpc.pb.h")); |
||||
grpc::protobuf::io::CodedOutputStream header_coded_out(header_output.get()); |
||||
header_coded_out.WriteRaw(header_code.data(), header_code.size()); |
||||
|
||||
grpc::string source_code = |
||||
grpc_cpp_generator::GetSourcePrologue(&pbfile, generator_parameters) + |
||||
grpc_cpp_generator::GetSourceIncludes(&pbfile, generator_parameters) + |
||||
grpc_cpp_generator::GetSourceServices(&pbfile, generator_parameters) + |
||||
grpc_cpp_generator::GetSourceEpilogue(&pbfile, generator_parameters); |
||||
std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> source_output( |
||||
context->Open(file_name + ".grpc.pb.cc")); |
||||
grpc::protobuf::io::CodedOutputStream source_coded_out(source_output.get()); |
||||
source_coded_out.WriteRaw(source_code.data(), source_code.size()); |
||||
|
||||
if (!generator_parameters.generate_mock_code) { |
||||
return true; |
||||
} |
||||
grpc::string mock_code = |
||||
grpc_cpp_generator::GetMockPrologue(&pbfile, generator_parameters) + |
||||
grpc_cpp_generator::GetMockIncludes(&pbfile, generator_parameters) + |
||||
grpc_cpp_generator::GetMockServices(&pbfile, generator_parameters) + |
||||
grpc_cpp_generator::GetMockEpilogue(&pbfile, generator_parameters); |
||||
std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> mock_output( |
||||
context->Open(file_name + "_mock.grpc.pb.h")); |
||||
grpc::protobuf::io::CodedOutputStream mock_coded_out(mock_output.get()); |
||||
mock_coded_out.WriteRaw(mock_code.data(), mock_code.size()); |
||||
|
||||
return true; |
||||
} |
||||
|
||||
private: |
||||
// Insert the given code into the given file at the given insertion point.
|
||||
void Insert(grpc::protobuf::compiler::GeneratorContext* context, |
||||
const grpc::string& filename, const grpc::string& insertion_point, |
||||
const grpc::string& code) const { |
||||
std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> output( |
||||
context->OpenForInsert(filename, insertion_point)); |
||||
grpc::protobuf::io::CodedOutputStream coded_out(output.get()); |
||||
coded_out.WriteRaw(code.data(), code.size()); |
||||
} |
||||
}; |
||||
|
||||
#endif // GRPC_INTERNAL_COMPILER_CPP_PLUGIN_H
|
||||
@ -0,0 +1,179 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2019 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
#include <grpc/support/port_platform.h> |
||||
|
||||
#include "src/core/lib/iomgr/port.h" |
||||
#if GRPC_ARES == 1 && defined(GRPC_UV) |
||||
|
||||
#include <ares.h> |
||||
#include <uv.h> |
||||
|
||||
#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h" |
||||
|
||||
#include <grpc/support/alloc.h> |
||||
#include <grpc/support/log.h> |
||||
#include <grpc/support/string_util.h> |
||||
#include <grpc/support/time.h> |
||||
#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" |
||||
#include "src/core/lib/gpr/string.h" |
||||
#include "src/core/lib/iomgr/combiner.h" |
||||
|
||||
namespace grpc_core { |
||||
|
||||
void ares_uv_poll_cb(uv_poll_t* handle, int status, int events); |
||||
|
||||
void ares_uv_poll_close_cb(uv_handle_t* handle) { Delete(handle); } |
||||
|
||||
class GrpcPolledFdLibuv : public GrpcPolledFd { |
||||
public: |
||||
GrpcPolledFdLibuv(ares_socket_t as, grpc_combiner* combiner) |
||||
: as_(as), combiner_(combiner) { |
||||
gpr_asprintf(&name_, "c-ares socket: %" PRIdPTR, (intptr_t)as); |
||||
handle_ = New<uv_poll_t>(); |
||||
uv_poll_init_socket(uv_default_loop(), handle_, as); |
||||
handle_->data = this; |
||||
GRPC_COMBINER_REF(combiner_, "libuv ares event driver"); |
||||
} |
||||
|
||||
~GrpcPolledFdLibuv() { |
||||
gpr_free(name_); |
||||
GRPC_COMBINER_UNREF(combiner_, "libuv ares event driver"); |
||||
} |
||||
|
||||
void RegisterForOnReadableLocked(grpc_closure* read_closure) override { |
||||
GPR_ASSERT(read_closure_ == nullptr); |
||||
GPR_ASSERT((poll_events_ & UV_READABLE) == 0); |
||||
read_closure_ = read_closure; |
||||
poll_events_ |= UV_READABLE; |
||||
uv_poll_start(handle_, poll_events_, ares_uv_poll_cb); |
||||
} |
||||
|
||||
void RegisterForOnWriteableLocked(grpc_closure* write_closure) override { |
||||
GPR_ASSERT(write_closure_ == nullptr); |
||||
GPR_ASSERT((poll_events_ & UV_WRITABLE) == 0); |
||||
write_closure_ = write_closure; |
||||
poll_events_ |= UV_WRITABLE; |
||||
uv_poll_start(handle_, poll_events_, ares_uv_poll_cb); |
||||
} |
||||
|
||||
bool IsFdStillReadableLocked() override { |
||||
/* uv_poll_t is based on poll, which is level triggered. So, if cares
|
||||
* leaves some data unread, the event will trigger again. */ |
||||
return false; |
||||
} |
||||
|
||||
void ShutdownInternalLocked(grpc_error* error) { |
||||
uv_poll_stop(handle_); |
||||
uv_close(reinterpret_cast<uv_handle_t*>(handle_), ares_uv_poll_close_cb); |
||||
if (read_closure_ != nullptr) { |
||||
GRPC_CLOSURE_SCHED(read_closure_, GRPC_ERROR_CANCELLED); |
||||
} |
||||
if (write_closure_ != nullptr) { |
||||
GRPC_CLOSURE_SCHED(write_closure_, GRPC_ERROR_CANCELLED); |
||||
} |
||||
} |
||||
|
||||
void ShutdownLocked(grpc_error* error) override { |
||||
if (grpc_core::ExecCtx::Get() == nullptr) { |
||||
grpc_core::ExecCtx exec_ctx; |
||||
ShutdownInternalLocked(error); |
||||
} else { |
||||
ShutdownInternalLocked(error); |
||||
} |
||||
} |
||||
|
||||
ares_socket_t GetWrappedAresSocketLocked() override { return as_; } |
||||
|
||||
const char* GetName() override { return name_; } |
||||
|
||||
char* name_; |
||||
ares_socket_t as_; |
||||
uv_poll_t* handle_; |
||||
grpc_closure* read_closure_ = nullptr; |
||||
grpc_closure* write_closure_ = nullptr; |
||||
int poll_events_ = 0; |
||||
grpc_combiner* combiner_; |
||||
}; |
||||
|
||||
struct AresUvPollCbArg { |
||||
AresUvPollCbArg(uv_poll_t* handle, int status, int events) |
||||
: handle(handle), status(status), events(events) {} |
||||
|
||||
uv_poll_t* handle; |
||||
int status; |
||||
int events; |
||||
}; |
||||
|
||||
static void ares_uv_poll_cb_locked(void* arg, grpc_error* error) { |
||||
grpc_core::UniquePtr<AresUvPollCbArg> arg_struct( |
||||
reinterpret_cast<AresUvPollCbArg*>(arg)); |
||||
uv_poll_t* handle = arg_struct->handle; |
||||
int status = arg_struct->status; |
||||
int events = arg_struct->events; |
||||
GrpcPolledFdLibuv* polled_fd = |
||||
reinterpret_cast<GrpcPolledFdLibuv*>(handle->data); |
||||
if (status < 0) { |
||||
error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("cares polling error"); |
||||
error = |
||||
grpc_error_set_str(error, GRPC_ERROR_STR_OS_ERROR, |
||||
grpc_slice_from_static_string(uv_strerror(status))); |
||||
} |
||||
if (events & UV_READABLE) { |
||||
GPR_ASSERT(polled_fd->read_closure_ != nullptr); |
||||
GRPC_CLOSURE_SCHED(polled_fd->read_closure_, error); |
||||
polled_fd->read_closure_ = nullptr; |
||||
polled_fd->poll_events_ &= ~UV_READABLE; |
||||
} |
||||
if (events & UV_WRITABLE) { |
||||
GPR_ASSERT(polled_fd->write_closure_ != nullptr); |
||||
GRPC_CLOSURE_SCHED(polled_fd->write_closure_, error); |
||||
polled_fd->write_closure_ = nullptr; |
||||
polled_fd->poll_events_ &= ~UV_WRITABLE; |
||||
} |
||||
uv_poll_start(handle, polled_fd->poll_events_, ares_uv_poll_cb); |
||||
} |
||||
|
||||
void ares_uv_poll_cb(uv_poll_t* handle, int status, int events) { |
||||
grpc_core::ExecCtx exec_ctx; |
||||
GrpcPolledFdLibuv* polled_fd = |
||||
reinterpret_cast<GrpcPolledFdLibuv*>(handle->data); |
||||
AresUvPollCbArg* arg = New<AresUvPollCbArg>(handle, status, events); |
||||
GRPC_CLOSURE_SCHED( |
||||
GRPC_CLOSURE_CREATE(ares_uv_poll_cb_locked, arg, |
||||
grpc_combiner_scheduler(polled_fd->combiner_)), |
||||
GRPC_ERROR_NONE); |
||||
} |
||||
|
||||
class GrpcPolledFdFactoryLibuv : public GrpcPolledFdFactory { |
||||
public: |
||||
GrpcPolledFd* NewGrpcPolledFdLocked(ares_socket_t as, |
||||
grpc_pollset_set* driver_pollset_set, |
||||
grpc_combiner* combiner) override { |
||||
return New<GrpcPolledFdLibuv>(as, combiner); |
||||
} |
||||
|
||||
void ConfigureAresChannelLocked(ares_channel channel) override {} |
||||
}; |
||||
|
||||
UniquePtr<GrpcPolledFdFactory> NewGrpcPolledFdFactory(grpc_combiner* combiner) { |
||||
return UniquePtr<GrpcPolledFdFactory>(New<GrpcPolledFdFactoryLibuv>()); |
||||
} |
||||
|
||||
} // namespace grpc_core
|
||||
|
||||
#endif /* GRPC_ARES == 1 && defined(GRPC_UV) */ |
||||
@ -0,0 +1,52 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2016 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
|
||||
#include "src/core/lib/iomgr/port.h" |
||||
#if GRPC_ARES == 1 && defined(GRPC_UV) |
||||
|
||||
#include <grpc/support/string_util.h> |
||||
|
||||
#include "src/core/ext/filters/client_channel/parse_address.h" |
||||
#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" |
||||
#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_libuv_windows.h" |
||||
#include "src/core/ext/filters/client_channel/server_address.h" |
||||
#include "src/core/lib/gpr/host_port.h" |
||||
#include "src/core/lib/gpr/string.h" |
||||
|
||||
bool grpc_ares_query_ipv6() { |
||||
/* The libuv grpc code currently does not have the code to probe for this,
|
||||
* so we assume for now that IPv6 is always available in contexts where this |
||||
* code will be used. */ |
||||
return true; |
||||
} |
||||
|
||||
bool grpc_ares_maybe_resolve_localhost_manually_locked( |
||||
const char* name, const char* default_port, |
||||
grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs) { |
||||
char* host = nullptr; |
||||
char* port = nullptr; |
||||
bool out = inner_maybe_resolve_localhost_manually_locked(name, default_port, |
||||
addrs, &host, &port); |
||||
gpr_free(host); |
||||
gpr_free(port); |
||||
return out; |
||||
} |
||||
|
||||
#endif /* GRPC_ARES == 1 && defined(GRPC_UV) */ |
||||
@ -0,0 +1,83 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2019 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
|
||||
#include "src/core/lib/iomgr/port.h" |
||||
#if GRPC_ARES == 1 && (defined(GRPC_UV) || defined(GPR_WINDOWS)) |
||||
|
||||
#include <grpc/support/string_util.h> |
||||
|
||||
#include "src/core/ext/filters/client_channel/parse_address.h" |
||||
#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" |
||||
#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_libuv_windows.h" |
||||
#include "src/core/ext/filters/client_channel/server_address.h" |
||||
#include "src/core/lib/gpr/host_port.h" |
||||
#include "src/core/lib/gpr/string.h" |
||||
|
||||
bool inner_maybe_resolve_localhost_manually_locked( |
||||
const char* name, const char* default_port, |
||||
grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs, char** host, |
||||
char** port) { |
||||
gpr_split_host_port(name, host, port); |
||||
if (*host == nullptr) { |
||||
gpr_log(GPR_ERROR, |
||||
"Failed to parse %s into host:port during manual localhost " |
||||
"resolution check.", |
||||
name); |
||||
return false; |
||||
} |
||||
if (*port == nullptr) { |
||||
if (default_port == nullptr) { |
||||
gpr_log(GPR_ERROR, |
||||
"No port or default port for %s during manual localhost " |
||||
"resolution check.", |
||||
name); |
||||
return false; |
||||
} |
||||
*port = gpr_strdup(default_port); |
||||
} |
||||
if (gpr_stricmp(*host, "localhost") == 0) { |
||||
GPR_ASSERT(*addrs == nullptr); |
||||
*addrs = grpc_core::MakeUnique<grpc_core::ServerAddressList>(); |
||||
uint16_t numeric_port = grpc_strhtons(*port); |
||||
// Append the ipv6 loopback address.
|
||||
struct sockaddr_in6 ipv6_loopback_addr; |
||||
memset(&ipv6_loopback_addr, 0, sizeof(ipv6_loopback_addr)); |
||||
((char*)&ipv6_loopback_addr.sin6_addr)[15] = 1; |
||||
ipv6_loopback_addr.sin6_family = AF_INET6; |
||||
ipv6_loopback_addr.sin6_port = numeric_port; |
||||
(*addrs)->emplace_back(&ipv6_loopback_addr, sizeof(ipv6_loopback_addr), |
||||
nullptr /* args */); |
||||
// Append the ipv4 loopback address.
|
||||
struct sockaddr_in ipv4_loopback_addr; |
||||
memset(&ipv4_loopback_addr, 0, sizeof(ipv4_loopback_addr)); |
||||
((char*)&ipv4_loopback_addr.sin_addr)[0] = 0x7f; |
||||
((char*)&ipv4_loopback_addr.sin_addr)[3] = 0x01; |
||||
ipv4_loopback_addr.sin_family = AF_INET; |
||||
ipv4_loopback_addr.sin_port = numeric_port; |
||||
(*addrs)->emplace_back(&ipv4_loopback_addr, sizeof(ipv4_loopback_addr), |
||||
nullptr /* args */); |
||||
// Let the address sorter figure out which one should be tried first.
|
||||
grpc_cares_wrapper_address_sorting_sort(addrs->get()); |
||||
return true; |
||||
} |
||||
return false; |
||||
} |
||||
|
||||
#endif /* GRPC_ARES == 1 && (defined(GRPC_UV) || defined(GPR_WINDOWS)) */ |
||||
@ -0,0 +1,34 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2019 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_LIBUV_WINDOWS_H |
||||
#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_LIBUV_WINDOWS_H |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
|
||||
#include <grpc/support/string_util.h> |
||||
|
||||
#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" |
||||
|
||||
bool inner_maybe_resolve_localhost_manually_locked( |
||||
const char* name, const char* default_port, |
||||
grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs, char** host, |
||||
char** port); |
||||
|
||||
#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_LIBUV_WINDOWS_H \ |
||||
*/ |
||||
@ -0,0 +1,87 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2019 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#ifndef GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_H |
||||
#define GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_H |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
|
||||
#include <stdint.h> |
||||
|
||||
// --------------------------------------------------------------------
|
||||
// How to use global configuration variables:
|
||||
//
|
||||
// Defining config variables of a specified type:
|
||||
// GPR_GLOBAL_CONFIG_DEFINE_*TYPE*(name, default_value, help);
|
||||
//
|
||||
// Supported TYPEs: BOOL, INT32, STRING
|
||||
//
|
||||
// It's recommended to use lowercase letters for 'name' like
|
||||
// regular variables. The builtin configuration system uses
|
||||
// environment variable and the name is converted to uppercase
|
||||
// when looking up the value. For example,
|
||||
// GPR_GLOBAL_CONFIG_DEFINE(grpc_latency) looks up the value with the
|
||||
// name, "GRPC_LATENCY".
|
||||
//
|
||||
// The variable initially has the specified 'default_value'
|
||||
// which must be an expression convertible to 'Type'.
|
||||
// 'default_value' may be evaluated 0 or more times,
|
||||
// and at an unspecified time; keep it
|
||||
// simple and usually free of side-effects.
|
||||
//
|
||||
// GPR_GLOBAL_CONFIG_DEFINE_*TYPE* should not be called in a C++ header.
|
||||
// It should be called at the top-level (outside any namespaces)
|
||||
// in a .cc file.
|
||||
//
|
||||
// Getting the variables:
|
||||
// GPR_GLOBAL_CONFIG_GET(name)
|
||||
//
|
||||
// If error happens during getting variables, error messages will
|
||||
// be logged and default value will be returned.
|
||||
//
|
||||
// Setting the variables with new value:
|
||||
// GPR_GLOBAL_CONFIG_SET(name, new_value)
|
||||
//
|
||||
// Declaring config variables for other modules to access:
|
||||
// GPR_GLOBAL_CONFIG_DECLARE_*TYPE*(name)
|
||||
|
||||
// --------------------------------------------------------------------
|
||||
// How to customize the global configuration system:
|
||||
//
|
||||
// How to read and write configuration value can be customized.
|
||||
// Builtin system uses environment variables but it can be extended to
|
||||
// support command-line flag, file, etc.
|
||||
//
|
||||
// To customize it, following macros should be redefined.
|
||||
//
|
||||
// GPR_GLOBAL_CONFIG_DEFINE_BOOL
|
||||
// GPR_GLOBAL_CONFIG_DEFINE_INT32
|
||||
// GPR_GLOBAL_CONFIG_DEFINE_STRING
|
||||
//
|
||||
// These macros should define functions for getting and setting variable.
|
||||
// For example, GPR_GLOBAL_CONFIG_DEFINE_BOOL(test, ...) would define two
|
||||
// functions.
|
||||
//
|
||||
// bool gpr_global_config_get_test();
|
||||
// void gpr_global_config_set_test(bool value);
|
||||
|
||||
#include "src/core/lib/gprpp/global_config_env.h" |
||||
|
||||
#include "src/core/lib/gprpp/global_config_custom.h" |
||||
|
||||
#endif /* GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_H */ |
||||
@ -0,0 +1,29 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2019 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#ifndef GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_CUSTOM_H |
||||
#define GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_CUSTOM_H |
||||
|
||||
// This is a placeholder for custom global configuration implementaion.
|
||||
// To use the custom one, please define following macros here.
|
||||
//
|
||||
// GPR_GLOBAL_CONFIG_DEFINE_BOOL
|
||||
// GPR_GLOBAL_CONFIG_DEFINE_INT32
|
||||
// GPR_GLOBAL_CONFIG_DEFINE_STRING
|
||||
|
||||
#endif /* GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_CUSTOM_H */ |
||||
@ -0,0 +1,135 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2019 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
|
||||
#include "src/core/lib/gprpp/global_config_env.h" |
||||
|
||||
#include <grpc/support/alloc.h> |
||||
#include <grpc/support/log.h> |
||||
#include <grpc/support/string_util.h> |
||||
|
||||
#include "src/core/lib/gpr/env.h" |
||||
#include "src/core/lib/gpr/string.h" |
||||
|
||||
#include <ctype.h> |
||||
#include <string.h> |
||||
|
||||
namespace grpc_core { |
||||
|
||||
namespace { |
||||
|
||||
void DefaultGlobalConfigEnvErrorFunction(const char* error_message) { |
||||
gpr_log(GPR_ERROR, "%s", error_message); |
||||
} |
||||
|
||||
GlobalConfigEnvErrorFunctionType g_global_config_env_error_func = |
||||
DefaultGlobalConfigEnvErrorFunction; |
||||
|
||||
void LogParsingError(const char* name, const char* value) { |
||||
char* error_message; |
||||
gpr_asprintf(&error_message, |
||||
"Illegal value '%s' specified for environment variable '%s'", |
||||
value, name); |
||||
(*g_global_config_env_error_func)(error_message); |
||||
gpr_free(error_message); |
||||
} |
||||
|
||||
} // namespace
|
||||
|
||||
void SetGlobalConfigEnvErrorFunction(GlobalConfigEnvErrorFunctionType func) { |
||||
g_global_config_env_error_func = func; |
||||
} |
||||
|
||||
UniquePtr<char> GlobalConfigEnv::GetValue() { |
||||
return UniquePtr<char>(gpr_getenv(GetName())); |
||||
} |
||||
|
||||
void GlobalConfigEnv::SetValue(const char* value) { |
||||
gpr_setenv(GetName(), value); |
||||
} |
||||
|
||||
void GlobalConfigEnv::Unset() { gpr_unsetenv(GetName()); } |
||||
|
||||
char* GlobalConfigEnv::GetName() { |
||||
// This makes sure that name_ is in a canonical form having uppercase
|
||||
// letters. This is okay to be called serveral times.
|
||||
for (char* c = name_; *c != 0; ++c) { |
||||
*c = toupper(*c); |
||||
} |
||||
return name_; |
||||
} |
||||
static_assert(std::is_trivially_destructible<GlobalConfigEnvBool>::value, |
||||
"GlobalConfigEnvBool needs to be trivially destructible."); |
||||
|
||||
bool GlobalConfigEnvBool::Get() { |
||||
UniquePtr<char> str = GetValue(); |
||||
if (str == nullptr) { |
||||
return default_value_; |
||||
} |
||||
// parsing given value string.
|
||||
bool result = false; |
||||
if (!gpr_parse_bool_value(str.get(), &result)) { |
||||
LogParsingError(GetName(), str.get()); |
||||
result = default_value_; |
||||
} |
||||
return result; |
||||
} |
||||
|
||||
void GlobalConfigEnvBool::Set(bool value) { |
||||
SetValue(value ? "true" : "false"); |
||||
} |
||||
|
||||
static_assert(std::is_trivially_destructible<GlobalConfigEnvInt32>::value, |
||||
"GlobalConfigEnvInt32 needs to be trivially destructible."); |
||||
|
||||
int32_t GlobalConfigEnvInt32::Get() { |
||||
UniquePtr<char> str = GetValue(); |
||||
if (str == nullptr) { |
||||
return default_value_; |
||||
} |
||||
// parsing given value string.
|
||||
char* end = str.get(); |
||||
long result = strtol(str.get(), &end, 10); |
||||
if (*end != 0) { |
||||
LogParsingError(GetName(), str.get()); |
||||
result = default_value_; |
||||
} |
||||
return static_cast<int32_t>(result); |
||||
} |
||||
|
||||
void GlobalConfigEnvInt32::Set(int32_t value) { |
||||
char buffer[GPR_LTOA_MIN_BUFSIZE]; |
||||
gpr_ltoa(value, buffer); |
||||
SetValue(buffer); |
||||
} |
||||
|
||||
static_assert(std::is_trivially_destructible<GlobalConfigEnvString>::value, |
||||
"GlobalConfigEnvString needs to be trivially destructible."); |
||||
|
||||
UniquePtr<char> GlobalConfigEnvString::Get() { |
||||
UniquePtr<char> str = GetValue(); |
||||
if (str == nullptr) { |
||||
return UniquePtr<char>(gpr_strdup(default_value_)); |
||||
} |
||||
return str; |
||||
} |
||||
|
||||
void GlobalConfigEnvString::Set(const char* value) { SetValue(value); } |
||||
|
||||
} // namespace grpc_core
|
||||
@ -0,0 +1,131 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2019 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#ifndef GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_ENV_H |
||||
#define GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_ENV_H |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
|
||||
#include "src/core/lib/gprpp/global_config_generic.h" |
||||
#include "src/core/lib/gprpp/memory.h" |
||||
|
||||
namespace grpc_core { |
||||
|
||||
typedef void (*GlobalConfigEnvErrorFunctionType)(const char* error_message); |
||||
|
||||
/*
|
||||
* Set global_config_env_error_function which is called when config system |
||||
* encounters errors such as parsing error. What the default function does |
||||
* is logging error message. |
||||
*/ |
||||
void SetGlobalConfigEnvErrorFunction(GlobalConfigEnvErrorFunctionType func); |
||||
|
||||
// Base class for all classes to access environment variables.
|
||||
class GlobalConfigEnv { |
||||
protected: |
||||
// `name` should be writable and alive after constructor is called.
|
||||
constexpr explicit GlobalConfigEnv(char* name) : name_(name) {} |
||||
|
||||
public: |
||||
// Returns the value of `name` variable.
|
||||
UniquePtr<char> GetValue(); |
||||
|
||||
// Sets the value of `name` variable.
|
||||
void SetValue(const char* value); |
||||
|
||||
// Unsets `name` variable.
|
||||
void Unset(); |
||||
|
||||
protected: |
||||
char* GetName(); |
||||
|
||||
private: |
||||
char* name_; |
||||
}; |
||||
|
||||
class GlobalConfigEnvBool : public GlobalConfigEnv { |
||||
public: |
||||
constexpr GlobalConfigEnvBool(char* name, bool default_value) |
||||
: GlobalConfigEnv(name), default_value_(default_value) {} |
||||
|
||||
bool Get(); |
||||
void Set(bool value); |
||||
|
||||
private: |
||||
bool default_value_; |
||||
}; |
||||
|
||||
class GlobalConfigEnvInt32 : public GlobalConfigEnv { |
||||
public: |
||||
constexpr GlobalConfigEnvInt32(char* name, int32_t default_value) |
||||
: GlobalConfigEnv(name), default_value_(default_value) {} |
||||
|
||||
int32_t Get(); |
||||
void Set(int32_t value); |
||||
|
||||
private: |
||||
int32_t default_value_; |
||||
}; |
||||
|
||||
class GlobalConfigEnvString : public GlobalConfigEnv { |
||||
public: |
||||
constexpr GlobalConfigEnvString(char* name, const char* default_value) |
||||
: GlobalConfigEnv(name), default_value_(default_value) {} |
||||
|
||||
UniquePtr<char> Get(); |
||||
void Set(const char* value); |
||||
|
||||
private: |
||||
const char* default_value_; |
||||
}; |
||||
|
||||
} // namespace grpc_core
|
||||
|
||||
// Macros for defining global config instances using environment variables.
|
||||
// This defines a GlobalConfig*Type* instance with arguments for
|
||||
// mutable variable name and default value.
|
||||
// Mutable name (g_env_str_##name) is here for having an array
|
||||
// for the canonical name without dynamic allocation.
|
||||
// `help` argument is ignored for this implementation.
|
||||
|
||||
#define GPR_GLOBAL_CONFIG_DEFINE_BOOL(name, default_value, help) \ |
||||
static char g_env_str_##name[] = #name; \
|
||||
static ::grpc_core::GlobalConfigEnvBool g_env_##name(g_env_str_##name, \
|
||||
default_value); \
|
||||
bool gpr_global_config_get_##name() { return g_env_##name.Get(); } \
|
||||
void gpr_global_config_set_##name(bool value) { g_env_##name.Set(value); } |
||||
|
||||
#define GPR_GLOBAL_CONFIG_DEFINE_INT32(name, default_value, help) \ |
||||
static char g_env_str_##name[] = #name; \
|
||||
static ::grpc_core::GlobalConfigEnvInt32 g_env_##name(g_env_str_##name, \
|
||||
default_value); \
|
||||
int32_t gpr_global_config_get_##name() { return g_env_##name.Get(); } \
|
||||
void gpr_global_config_set_##name(int32_t value) { g_env_##name.Set(value); } |
||||
|
||||
#define GPR_GLOBAL_CONFIG_DEFINE_STRING(name, default_value, help) \ |
||||
static char g_env_str_##name[] = #name; \
|
||||
static ::grpc_core::GlobalConfigEnvString g_env_##name(g_env_str_##name, \
|
||||
default_value); \
|
||||
::grpc_core::UniquePtr<char> gpr_global_config_get_##name() { \
|
||||
return g_env_##name.Get(); \
|
||||
} \
|
||||
void gpr_global_config_set_##name(const char* value) { \
|
||||
g_env_##name.Set(value); \
|
||||
} |
||||
|
||||
#endif /* GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_ENV_H */ |
||||
@ -0,0 +1,44 @@ |
||||
/*
|
||||
* |
||||
* Copyright 2019 gRPC authors. |
||||
* |
||||
* Licensed under the Apache License, Version 2.0 (the "License"); |
||||
* you may not use this file except in compliance with the License. |
||||
* You may obtain a copy of the License at |
||||
* |
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
* |
||||
* Unless required by applicable law or agreed to in writing, software |
||||
* distributed under the License is distributed on an "AS IS" BASIS, |
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||||
* See the License for the specific language governing permissions and |
||||
* limitations under the License. |
||||
* |
||||
*/ |
||||
|
||||
#ifndef GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_GENERIC_H |
||||
#define GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_GENERIC_H |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
|
||||
#include "src/core/lib/gprpp/memory.h" |
||||
|
||||
#include <stdint.h> |
||||
|
||||
#define GPR_GLOBAL_CONFIG_GET(name) gpr_global_config_get_##name() |
||||
|
||||
#define GPR_GLOBAL_CONFIG_SET(name, value) gpr_global_config_set_##name(value) |
||||
|
||||
#define GPR_GLOBAL_CONFIG_DECLARE_BOOL(name) \ |
||||
extern bool gpr_global_config_get_##name(); \
|
||||
extern void gpr_global_config_set_##name(bool value) |
||||
|
||||
#define GPR_GLOBAL_CONFIG_DECLARE_INT32(name) \ |
||||
extern int32_t gpr_global_config_get_##name(); \
|
||||
extern void gpr_global_config_set_##name(int32_t value) |
||||
|
||||
#define GPR_GLOBAL_CONFIG_DECLARE_STRING(name) \ |
||||
extern grpc_core::UniquePtr<char> gpr_global_config_get_##name(); \
|
||||
extern void gpr_global_config_set_##name(const char* value) |
||||
|
||||
#endif /* GRPC_CORE_LIB_GPRPP_GLOBAL_CONFIG_GENERIC_H */ |
||||
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