Mirko Bonadei e5f4c6b8d2 Reland "Refactor rtc_base build targets."
This is a reland of 69241a93fb14f6527a26d5c94dde879013012d2a

Fix: The problem was related to NO_MAIN_THREAD_WRAPPING, which
affects https://source.chromium.org/chromium/chromium/src/+/master:third_party/webrtc/rtc_base/thread.cc;l=257-263;drc=7acc2d9fe3a6e3c4d8881d2bdfc9b8968a724cd5.
The original CL didn't attach the definition of the macro
NO_MAIN_THREAD_WRAPPING when building for Chromium (which doesn't have
to be related to //rtc_base anymore but to //rtc_base:threading).

Original change's description:
> Refactor rtc_base build targets.
>
> The "//rtc_base:rtc_base" build target has historically been one of the
> biggest targets in the WebRTC build. Big targets are the main source of
> circular dependencies and non-API types leakage.
>
> This CL is a step forward into splitting "//rtc_base:rtc_base" into
> smaller targets (as originally started in 2018).
>
> The only non-automated changes are (like re-wiring the build system):
> * The creation of //rtc_base/async_resolver.{h,cc} which allows to
>   break a circular dependency (is has been extracted from
>   //rtc_base/net_helpers.{h,cc}).
> * The creation of //rtc_base/internal/default_socket_server.{h,cc} to
>   break another circular dependency.
>
> Bug: webrtc:9987
> Change-Id: I0c8f5e7efe2c8fd8e6bffa0d6dd2dd494cf3df02
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/196903
> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
> Reviewed-by: Harald Alvestrand <hta@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#32941}

Bug: webrtc:9987
Change-Id: I7cdf49d2aac8357f1f50f90010bf2c2f62fa19f6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/202021
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33001}
2021-01-15 17:00:05 +00:00

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# Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
#
# Use of this source code is governed by a BSD-style license
# that can be found in the LICENSE file in the root of the source
# tree. An additional intellectual property rights grant can be found
# in the file PATENTS. All contributing project authors may
# be found in the AUTHORS file in the root of the source tree.
import("../../webrtc.gni")
if (is_android) {
import("//build/config/android/config.gni")
import("//build/config/android/rules.gni")
}
rtc_library("yield") {
sources = [
"yield.cc",
"yield.h",
]
deps = []
}
rtc_library("mutex") {
sources = [
"mutex.cc",
"mutex.h",
"mutex_critical_section.h",
"mutex_pthread.h",
]
if (rtc_use_absl_mutex) {
sources += [ "mutex_abseil.h" ]
}
deps = [
":yield",
"..:checks",
"..:macromagic",
"..:platform_thread_types",
"../system:unused",
]
absl_deps = [ "//third_party/abseil-cpp/absl/base:core_headers" ]
if (rtc_use_absl_mutex) {
absl_deps += [ "//third_party/abseil-cpp/absl/synchronization" ]
}
}
rtc_library("sequence_checker") {
sources = [
"sequence_checker.cc",
"sequence_checker.h",
]
deps = [
":mutex",
"..:checks",
"..:criticalsection",
"..:macromagic",
"..:platform_thread_types",
"..:stringutils",
"../../api/task_queue",
"../system:rtc_export",
]
}
rtc_library("yield_policy") {
sources = [
"yield_policy.cc",
"yield_policy.h",
]
deps = [ "..:checks" ]
absl_deps = [
"//third_party/abseil-cpp/absl/base:config",
"//third_party/abseil-cpp/absl/base:core_headers",
]
}
if (rtc_include_tests) {
rtc_library("synchronization_unittests") {
testonly = true
sources = [
"mutex_unittest.cc",
"yield_policy_unittest.cc",
]
deps = [
":mutex",
":yield",
":yield_policy",
"..:checks",
"..:macromagic",
"..:rtc_base",
"..:rtc_event",
"..:threading",
"../../test:test_support",
"//third_party/google_benchmark",
]
}
rtc_library("mutex_benchmark") {
testonly = true
sources = [ "mutex_benchmark.cc" ]
deps = [
":mutex",
"../system:unused",
"//third_party/google_benchmark",
]
}
rtc_library("sequence_checker_unittests") {
testonly = true
sources = [ "sequence_checker_unittest.cc" ]
deps = [
":sequence_checker",
"..:checks",
"..:rtc_base_approved",
"..:task_queue_for_test",
"../../api:function_view",
"../../test:test_main",
"../../test:test_support",
]
}
}