webrtc_m130/rtc_base/synchronization/DEPS

specific_include_rules = {
  "mutex_abseil\.h": [
    "+absl/synchronization"
  ],
  ".*_benchmark\.cc": [
    "+benchmark",
  ],
  ".*_unittest\.cc": [
    "+benchmark",
  ]
}
Introduces rtc_base/synchronization/mutex.h. 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} 2020-06-04 00:41:20 +02:00			`specific_include_rules = {`
			`"mutex_abseil\.h": [`
			`"+absl/synchronization"`
			`],`
			`".*_benchmark\.cc": [`
			`"+benchmark",`
			`],`
			`".*_unittest\.cc": [`
			`"+benchmark",`
			`]`
			`}`