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f70fbc8411
This change introduces a new non-reentrant mutex to WebRTC. It enables eventual migration to Abseil's mutex. The mutex types supportable by webrtc::Mutex are - absl::Mutex - CriticalSection (Windows only) - pthread_mutex (POSIX only) In addition to introducing the mutexes, the CL also changes PacketBuffer to use the new mutex instead of rtc::CriticalSection. The method of yielding from critical_section.cc was given a mini-cleanup and YieldCurrentThread() was added to rtc_base/synchronization/yield.h/cc. Additionally, google_benchmark benchmarks for the mutexes were added (test courtesy of danilchap@), and some results from a pthread/Abseil shootout were added showing Abseil has the advantage in higher contention. Bug: webrtc:11567, webrtc:11634 Change-Id: Iaec324ccb32ec3851bf6db3fd290f5ea5dee4c81 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/176230 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#31443} |
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| .. | ||
| BUILD.gn | ||
| DEPS | ||
| mutex.cc | ||
| mutex.h | ||
| mutex_abseil.h | ||
| mutex_benchmark.cc | ||
| mutex_critical_section.h | ||
| mutex_pthread.h | ||
| mutex_unittest.cc | ||
| rw_lock_posix.cc | ||
| rw_lock_posix.h | ||
| rw_lock_win.cc | ||
| rw_lock_win.h | ||
| rw_lock_wrapper.cc | ||
| rw_lock_wrapper.h | ||
| sequence_checker.cc | ||
| sequence_checker.h | ||
| sequence_checker_unittest.cc | ||
| yield.cc | ||
| yield.h | ||
| yield_policy.cc | ||
| yield_policy.h | ||
| yield_policy_unittest.cc | ||