Revert "Replace in-house rand with absl::Random for backoff (#26463)" (#26476)

This reverts commit b5191d0930.
3 years ago · 451127740d
parent 22cbc3a388
commit 451127740d
18 changed files with 43 additions and 187 deletions
--- a/1
+++ b/1
@ -650,7 +650,6 @@ grpc_cc_library(
    external_deps = [
        "absl/base",
        "absl/memory",
-        "absl/random",
        "absl/status",
        "absl/strings",
        "absl/strings:str_format",
--- a/BUILD.gn
+++ b/BUILD.gn
@ -203,7 +203,6 @@ config("grpc_config") {
    deps = [
        ":absl/base:base",
        ":absl/memory:memory",
-        ":absl/random:random",
        ":absl/status:status",
        ":absl/strings:str_format",
        ":absl/strings:strings",
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -121,7 +121,6 @@ set(gRPC_ABSL_USED_TARGETS
  absl_endian
  absl_errno_saver
  absl_exponential_biased
-  absl_fast_type_id
  absl_fixed_array
  absl_flat_hash_map
  absl_function_ref
@ -142,29 +141,6 @@ set(gRPC_ABSL_USED_TARGETS
  absl_memory
  absl_numeric_representation
  absl_optional
-  absl_random_distributions
-  absl_random_internal_distribution_caller
-  absl_random_internal_fast_uniform_bits
-  absl_random_internal_fastmath
-  absl_random_internal_generate_real
-  absl_random_internal_iostream_state_saver
-  absl_random_internal_nonsecure_base
-  absl_random_internal_pcg_engine
-  absl_random_internal_platform
-  absl_random_internal_pool_urbg
-  absl_random_internal_randen
-  absl_random_internal_randen_engine
-  absl_random_internal_randen_hwaes
-  absl_random_internal_randen_hwaes_impl
-  absl_random_internal_randen_slow
-  absl_random_internal_salted_seed_seq
-  absl_random_internal_seed_material
-  absl_random_internal_traits
-  absl_random_internal_uniform_helper
-  absl_random_internal_wide_multiply
-  absl_random_random
-  absl_random_seed_gen_exception
-  absl_random_seed_sequences
  absl_raw_hash_map
  absl_raw_hash_set
  absl_raw_logging_internal
@ -1449,7 +1425,6 @@ target_link_libraries(gpr
  ${_gRPC_ALLTARGETS_LIBRARIES}
  absl::base
  absl::memory
-  absl::random_random
  absl::status
  absl::str_format
  absl::strings
@ -15847,7 +15822,7 @@ generate_pkgconfig(
  "gpr"
  "gRPC platform support library"
  "${gRPC_CORE_VERSION}"
-  "absl_base absl_memory absl_optional absl_random_random absl_status absl_str_format absl_strings absl_synchronization absl_time"
+  "absl_base absl_memory absl_optional absl_status absl_str_format absl_strings absl_synchronization absl_time"
  "-lgpr"
  ""
  "gpr.pc")
@ -15857,7 +15832,7 @@ generate_pkgconfig(
  "gRPC"
  "high performance general RPC framework"
  "${gRPC_CORE_VERSION}"
-  "gpr openssl absl_base absl_bind_front absl_flat_hash_map absl_inlined_vector absl_memory absl_optional absl_random_random absl_status absl_statusor absl_str_format absl_strings absl_synchronization absl_time"
+  "gpr openssl absl_base absl_bind_front absl_flat_hash_map absl_inlined_vector absl_memory absl_optional absl_status absl_statusor absl_str_format absl_strings absl_synchronization absl_time"
  "-lgrpc -laddress_sorting -lre2 -lupb -lcares -lz"
  ""
  "grpc.pc")
@ -15867,7 +15842,7 @@ generate_pkgconfig(
  "gRPC unsecure"
  "high performance general RPC framework without SSL"
  "${gRPC_CORE_VERSION}"
-  "gpr absl_base absl_flat_hash_map absl_inlined_vector absl_memory absl_optional absl_random_random absl_status absl_statusor absl_str_format absl_strings absl_synchronization absl_time"
+  "gpr absl_base absl_flat_hash_map absl_inlined_vector absl_memory absl_optional absl_status absl_statusor absl_str_format absl_strings absl_synchronization absl_time"
  "-lgrpc_unsecure"
  ""
  "grpc_unsecure.pc")
@ -15877,7 +15852,7 @@ generate_pkgconfig(
  "gRPC++"
  "C++ wrapper for gRPC"
  "${gRPC_CPP_VERSION}"
-  "grpc absl_base absl_bind_front absl_flat_hash_map absl_inlined_vector absl_memory absl_optional absl_random_random absl_status absl_statusor absl_str_format absl_strings absl_synchronization absl_time"
+  "grpc absl_base absl_bind_front absl_flat_hash_map absl_inlined_vector absl_memory absl_optional absl_status absl_statusor absl_str_format absl_strings absl_synchronization absl_time"
  "-lgrpc++"
  ""
  "grpc++.pc")
@ -15887,7 +15862,7 @@ generate_pkgconfig(
  "gRPC++ unsecure"
  "C++ wrapper for gRPC without SSL"
  "${gRPC_CPP_VERSION}"
-  "grpc_unsecure absl_base absl_flat_hash_map absl_inlined_vector absl_memory absl_optional absl_random_random absl_status absl_statusor absl_str_format absl_strings absl_synchronization absl_time"
+  "grpc_unsecure absl_base absl_flat_hash_map absl_inlined_vector absl_memory absl_optional absl_status absl_statusor absl_str_format absl_strings absl_synchronization absl_time"
  "-lgrpc++_unsecure"
  ""
  "grpc++_unsecure.pc")
--- a/13
+++ b/13
@ -418,7 +418,7 @@ LDFLAGS += -pthread
 endif

 ifeq ($(SYSTEM),MINGW32)
-LIBS = m pthread ws2_32 dbghelp bcrypt
+LIBS = m pthread ws2_32 dbghelp
 LDFLAGS += -pthread
 endif

@ -2588,17 +2588,6 @@ LIBGRPC_ABSEIL_SRC = \
    third_party/abseil-cpp/absl/hash/internal/hash.cc \
    third_party/abseil-cpp/absl/hash/internal/wyhash.cc \
    third_party/abseil-cpp/absl/numeric/int128.cc \
-    third_party/abseil-cpp/absl/random/discrete_distribution.cc \
-    third_party/abseil-cpp/absl/random/gaussian_distribution.cc \
-    third_party/abseil-cpp/absl/random/internal/pool_urbg.cc \
-    third_party/abseil-cpp/absl/random/internal/randen.cc \
-    third_party/abseil-cpp/absl/random/internal/randen_detect.cc \
-    third_party/abseil-cpp/absl/random/internal/randen_hwaes.cc \
-    third_party/abseil-cpp/absl/random/internal/randen_round_keys.cc \
-    third_party/abseil-cpp/absl/random/internal/randen_slow.cc \
-    third_party/abseil-cpp/absl/random/internal/seed_material.cc \
-    third_party/abseil-cpp/absl/random/seed_gen_exception.cc \
-    third_party/abseil-cpp/absl/random/seed_sequences.cc \
    third_party/abseil-cpp/absl/status/status.cc \
    third_party/abseil-cpp/absl/status/status_payload_printer.cc \
    third_party/abseil-cpp/absl/status/statusor.cc \
--- a/build_autogenerated.yaml
+++ b/build_autogenerated.yaml
@ -385,7 +385,6 @@ libs:
  deps:
  - absl/base:base
  - absl/memory:memory
-  - absl/random:random
  - absl/status:status
  - absl/strings:str_format
  - absl/strings:strings
--- a/config.m4
+++ b/config.m4
@ -680,17 +680,6 @@ if test "$PHP_GRPC" != "no"; then
    third_party/abseil-cpp/absl/hash/internal/hash.cc \
    third_party/abseil-cpp/absl/hash/internal/wyhash.cc \
    third_party/abseil-cpp/absl/numeric/int128.cc \
-    third_party/abseil-cpp/absl/random/discrete_distribution.cc \
-    third_party/abseil-cpp/absl/random/gaussian_distribution.cc \
-    third_party/abseil-cpp/absl/random/internal/pool_urbg.cc \
-    third_party/abseil-cpp/absl/random/internal/randen.cc \
-    third_party/abseil-cpp/absl/random/internal/randen_detect.cc \
-    third_party/abseil-cpp/absl/random/internal/randen_hwaes.cc \
-    third_party/abseil-cpp/absl/random/internal/randen_round_keys.cc \
-    third_party/abseil-cpp/absl/random/internal/randen_slow.cc \
-    third_party/abseil-cpp/absl/random/internal/seed_material.cc \
-    third_party/abseil-cpp/absl/random/seed_gen_exception.cc \
-    third_party/abseil-cpp/absl/random/seed_sequences.cc \
    third_party/abseil-cpp/absl/status/status.cc \
    third_party/abseil-cpp/absl/status/status_payload_printer.cc \
    third_party/abseil-cpp/absl/status/statusor.cc \
@ -1227,8 +1216,6 @@ if test "$PHP_GRPC" != "no"; then
  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/debugging/internal)
  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/hash/internal)
  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/numeric)
-  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/random)
-  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/random/internal)
  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/status)
  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/strings)
  PHP_ADD_BUILD_DIR($ext_builddir/third_party/abseil-cpp/absl/strings/internal)
--- a/config.w32
+++ b/config.w32
@ -646,17 +646,6 @@ if (PHP_GRPC != "no") {
    "third_party\\abseil-cpp\\absl\\hash\\internal\\hash.cc " +
    "third_party\\abseil-cpp\\absl\\hash\\internal\\wyhash.cc " +
    "third_party\\abseil-cpp\\absl\\numeric\\int128.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\discrete_distribution.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\gaussian_distribution.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\internal\\pool_urbg.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\internal\\randen.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\internal\\randen_detect.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\internal\\randen_hwaes.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\internal\\randen_round_keys.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\internal\\randen_slow.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\internal\\seed_material.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\seed_gen_exception.cc " +
-    "third_party\\abseil-cpp\\absl\\random\\seed_sequences.cc " +
    "third_party\\abseil-cpp\\absl\\status\\status.cc " +
    "third_party\\abseil-cpp\\absl\\status\\status_payload_printer.cc " +
    "third_party\\abseil-cpp\\absl\\status\\statusor.cc " +
@ -1338,8 +1327,6 @@ if (PHP_GRPC != "no") {
  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\abseil-cpp\\absl\\hash");
  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\abseil-cpp\\absl\\hash\\internal");
  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\abseil-cpp\\absl\\numeric");
-  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\abseil-cpp\\absl\\random");
-  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\abseil-cpp\\absl\\random\\internal");
  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\abseil-cpp\\absl\\status");
  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\abseil-cpp\\absl\\strings");
  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\abseil-cpp\\absl\\strings\\internal");
--- a/gRPC-C++.podspec
+++ b/gRPC-C++.podspec
@ -193,7 +193,6 @@ Pod::Spec.new do |s|
    ss.dependency 'abseil/container/inlined_vector', abseil_version
    ss.dependency 'abseil/functional/bind_front', abseil_version
    ss.dependency 'abseil/memory/memory', abseil_version
-    ss.dependency 'abseil/random/random', abseil_version
    ss.dependency 'abseil/status/status', abseil_version
    ss.dependency 'abseil/status/statusor', abseil_version
    ss.dependency 'abseil/strings/str_format', abseil_version
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@ -180,7 +180,6 @@ Pod::Spec.new do |s|
    ss.dependency 'abseil/container/inlined_vector', abseil_version
    ss.dependency 'abseil/functional/bind_front', abseil_version
    ss.dependency 'abseil/memory/memory', abseil_version
-    ss.dependency 'abseil/random/random', abseil_version
    ss.dependency 'abseil/status/status', abseil_version
    ss.dependency 'abseil/status/statusor', abseil_version
    ss.dependency 'abseil/strings/str_format', abseil_version
--- a/grpc.gemspec
+++ b/grpc.gemspec
@ -1270,7 +1270,6 @@ Gem::Specification.new do |s|
  s.files += %w( third_party/abseil-cpp/absl/base/internal/errno_saver.h )
  s.files += %w( third_party/abseil-cpp/absl/base/internal/exponential_biased.cc )
  s.files += %w( third_party/abseil-cpp/absl/base/internal/exponential_biased.h )
-  s.files += %w( third_party/abseil-cpp/absl/base/internal/fast_type_id.h )
  s.files += %w( third_party/abseil-cpp/absl/base/internal/hide_ptr.h )
  s.files += %w( third_party/abseil-cpp/absl/base/internal/identity.h )
  s.files += %w( third_party/abseil-cpp/absl/base/internal/inline_variable.h )
@ -1372,51 +1371,6 @@ Gem::Specification.new do |s|
  s.files += %w( third_party/abseil-cpp/absl/numeric/int128_no_intrinsic.inc )
  s.files += %w( third_party/abseil-cpp/absl/numeric/internal/bits.h )
  s.files += %w( third_party/abseil-cpp/absl/numeric/internal/representation.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/bernoulli_distribution.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/beta_distribution.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/discrete_distribution.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/discrete_distribution.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/distributions.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/exponential_distribution.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/gaussian_distribution.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/gaussian_distribution.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/distribution_caller.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/fast_uniform_bits.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/fastmath.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/generate_real.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/iostream_state_saver.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/nonsecure_base.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/pcg_engine.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/platform.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/pool_urbg.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/pool_urbg.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen_detect.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen_detect.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen_engine.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen_hwaes.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen_hwaes.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen_round_keys.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen_slow.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen_slow.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/randen_traits.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/salted_seed_seq.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/seed_material.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/seed_material.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/traits.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/uniform_helper.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/internal/wide_multiply.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/log_uniform_int_distribution.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/poisson_distribution.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/random.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/seed_gen_exception.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/seed_gen_exception.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/seed_sequences.cc )
-  s.files += %w( third_party/abseil-cpp/absl/random/seed_sequences.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/uniform_int_distribution.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/uniform_real_distribution.h )
-  s.files += %w( third_party/abseil-cpp/absl/random/zipf_distribution.h )
  s.files += %w( third_party/abseil-cpp/absl/status/internal/status_internal.h )
  s.files += %w( third_party/abseil-cpp/absl/status/internal/statusor_internal.h )
  s.files += %w( third_party/abseil-cpp/absl/status/status.cc )
--- a/grpc.gyp
+++ b/grpc.gyp
@ -386,7 +386,6 @@
      'dependencies': [
        'absl/base:base',
        'absl/memory:memory',
-        'absl/random:random',
        'absl/status:status',
        'absl/strings:str_format',
        'absl/strings:strings',
--- a/package.xml
+++ b/package.xml
@ -1272,7 +1272,6 @@
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/base/internal/errno_saver.h" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/base/internal/exponential_biased.cc" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/base/internal/exponential_biased.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/base/internal/fast_type_id.h" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/base/internal/hide_ptr.h" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/base/internal/identity.h" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/base/internal/inline_variable.h" role="src" />
@ -1374,51 +1373,6 @@
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/numeric/int128_no_intrinsic.inc" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/numeric/internal/bits.h" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/numeric/internal/representation.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/bernoulli_distribution.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/beta_distribution.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/discrete_distribution.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/discrete_distribution.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/distributions.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/exponential_distribution.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/gaussian_distribution.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/gaussian_distribution.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/distribution_caller.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/fast_uniform_bits.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/fastmath.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/generate_real.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/iostream_state_saver.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/nonsecure_base.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/pcg_engine.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/platform.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/pool_urbg.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/pool_urbg.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen_detect.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen_detect.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen_engine.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen_hwaes.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen_hwaes.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen_round_keys.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen_slow.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen_slow.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/randen_traits.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/salted_seed_seq.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/seed_material.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/seed_material.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/traits.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/uniform_helper.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/internal/wide_multiply.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/log_uniform_int_distribution.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/poisson_distribution.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/random.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/seed_gen_exception.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/seed_gen_exception.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/seed_sequences.cc" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/seed_sequences.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/uniform_int_distribution.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/uniform_real_distribution.h" role="src" />
-    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/random/zipf_distribution.h" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/status/internal/status_internal.h" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/status/internal/statusor_internal.h" role="src" />
    <file baseinstalldir="/" name="third_party/abseil-cpp/absl/status/status.cc" role="src" />
--- a/setup.py
+++ b/setup.py
@ -316,9 +316,8 @@ if not "win32" in sys.platform:
 if "win32" in sys.platform:
    EXTENSION_LIBRARIES += (
        'advapi32',
-        'bcrypt',
-        'dbghelp',
        'ws2_32',
+        'dbghelp',
    )
 if BUILD_WITH_SYSTEM_OPENSSL:
    EXTENSION_LIBRARIES += (
--- a/src/core/lib/backoff/backoff.cc
+++ b/src/core/lib/backoff/backoff.cc
@ -26,7 +26,31 @@

 namespace grpc_core {

-BackOff::BackOff(const Options& options) : options_(options) { Reset(); }
+namespace {
+
+/* Generate a random number between 0 and 1. We roll our own RNG because seeding
+ * rand() modifies a global variable we have no control over. */
+double generate_uniform_random_number(uint32_t* rng_state) {
+  constexpr uint32_t two_raise_31 = uint32_t(1) << 31;
+  *rng_state = (1103515245 * *rng_state + 12345) % two_raise_31;
+  return *rng_state / static_cast<double>(two_raise_31);
+}
+
+double generate_uniform_random_number_between(uint32_t* rng_state, double a,
+                                              double b) {
+  if (a == b) return a;
+  if (a > b) GPR_SWAP(double, a, b);  // make sure a < b
+  const double range = b - a;
+  return a + generate_uniform_random_number(rng_state) * range;
+}
+
+}  // namespace
+
+BackOff::BackOff(const Options& options)
+    : options_(options),
+      rng_state_(static_cast<uint32_t>(gpr_now(GPR_CLOCK_REALTIME).tv_nsec)) {
+  Reset();
+}

 grpc_millis BackOff::NextAttemptTime() {
  if (initial_) {
@ -36,9 +60,9 @@ grpc_millis BackOff::NextAttemptTime() {
  current_backoff_ = static_cast<grpc_millis>(
      std::min(current_backoff_ * options_.multiplier(),
               static_cast<double>(options_.max_backoff())));
-  const double jitter =
-      absl::Uniform(rand_gen_, -options_.jitter() * current_backoff_,
-                    options_.jitter() * current_backoff_);
+  const double jitter = generate_uniform_random_number_between(
+      &rng_state_, -options_.jitter() * current_backoff_,
+      options_.jitter() * current_backoff_);
  const grpc_millis next_timeout =
      static_cast<grpc_millis>(current_backoff_ + jitter);
  return next_timeout + grpc_core::ExecCtx::Get()->Now();
@ -49,4 +73,6 @@ void BackOff::Reset() {
  initial_ = true;
 }

+void BackOff::SetRandomSeed(uint32_t seed) { rng_state_ = seed; }
+
 }  // namespace grpc_core
--- a/src/core/lib/backoff/backoff.h
+++ b/src/core/lib/backoff/backoff.h
@ -23,8 +23,6 @@

 #include "src/core/lib/iomgr/exec_ctx.h"

-#include "absl/random/random.h"
-
 namespace grpc_core {

 /// Implementation of the backoff mechanism described in
@ -43,6 +41,8 @@ class BackOff {
  /// will be the time of the second attempt (rather than the Nth).
  void Reset();

+  void SetRandomSeed(unsigned int seed);
+
  class Options {
   public:
    Options& set_initial_backoff(grpc_millis initial_backoff) {
@ -79,7 +79,7 @@ class BackOff {

 private:
  const Options options_;
-  absl::BitGen rand_gen_;
+  uint32_t rng_state_;
  bool initial_;
  /// current delay before retries
  grpc_millis current_backoff_;
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@ -645,17 +645,6 @@ CORE_SOURCE_FILES = [
    'third_party/abseil-cpp/absl/hash/internal/hash.cc',
    'third_party/abseil-cpp/absl/hash/internal/wyhash.cc',
    'third_party/abseil-cpp/absl/numeric/int128.cc',
-    'third_party/abseil-cpp/absl/random/discrete_distribution.cc',
-    'third_party/abseil-cpp/absl/random/gaussian_distribution.cc',
-    'third_party/abseil-cpp/absl/random/internal/pool_urbg.cc',
-    'third_party/abseil-cpp/absl/random/internal/randen.cc',
-    'third_party/abseil-cpp/absl/random/internal/randen_detect.cc',
-    'third_party/abseil-cpp/absl/random/internal/randen_hwaes.cc',
-    'third_party/abseil-cpp/absl/random/internal/randen_round_keys.cc',
-    'third_party/abseil-cpp/absl/random/internal/randen_slow.cc',
-    'third_party/abseil-cpp/absl/random/internal/seed_material.cc',
-    'third_party/abseil-cpp/absl/random/seed_gen_exception.cc',
-    'third_party/abseil-cpp/absl/random/seed_sequences.cc',
    'third_party/abseil-cpp/absl/status/status.cc',
    'third_party/abseil-cpp/absl/status/status_payload_printer.cc',
    'third_party/abseil-cpp/absl/status/statusor.cc',
--- a/templates/Makefile.template
+++ b/templates/Makefile.template
@ -284,7 +284,7 @@
  endif

  ifeq ($(SYSTEM),MINGW32)
-  LIBS = m pthread ws2_32 dbghelp bcrypt
+  LIBS = m pthread ws2_32 dbghelp
  LDFLAGS += -pthread
  endif

--- a/test/core/backoff/backoff_test.cc
+++ b/test/core/backoff/backoff_test.cc
@ -138,6 +138,8 @@ TEST(BackOffTest, JitterBackOff) {
      .set_max_backoff(max_backoff);
  BackOff backoff(options);

+  backoff.SetRandomSeed(0);  // force consistent PRNG
+
  grpc_core::ExecCtx exec_ctx;
  grpc_millis next = backoff.NextAttemptTime();
  EXPECT_EQ(next - grpc_core::ExecCtx::Get()->Now(), initial_backoff);