xref: /aosp_15_r20/external/webrtc/rtc_base/synchronization/yield.cc (revision d9f758449e529ab9291ac668be2861e7a55c2422)
1*d9f75844SAndroid Build Coastguard Worker /*
2*d9f75844SAndroid Build Coastguard Worker  *  Copyright 2020 The WebRTC Project Authors. All rights reserved.
3*d9f75844SAndroid Build Coastguard Worker  *
4*d9f75844SAndroid Build Coastguard Worker  *  Use of this source code is governed by a BSD-style license
5*d9f75844SAndroid Build Coastguard Worker  *  that can be found in the LICENSE file in the root of the source
6*d9f75844SAndroid Build Coastguard Worker  *  tree. An additional intellectual property rights grant can be found
7*d9f75844SAndroid Build Coastguard Worker  *  in the file PATENTS.  All contributing project authors may
8*d9f75844SAndroid Build Coastguard Worker  *  be found in the AUTHORS file in the root of the source tree.
9*d9f75844SAndroid Build Coastguard Worker  */
10*d9f75844SAndroid Build Coastguard Worker 
11*d9f75844SAndroid Build Coastguard Worker #include "rtc_base/synchronization/yield.h"
12*d9f75844SAndroid Build Coastguard Worker 
13*d9f75844SAndroid Build Coastguard Worker #if defined(WEBRTC_WIN)
14*d9f75844SAndroid Build Coastguard Worker #include <windows.h>
15*d9f75844SAndroid Build Coastguard Worker #else
16*d9f75844SAndroid Build Coastguard Worker #include <sched.h>
17*d9f75844SAndroid Build Coastguard Worker #include <time.h>
18*d9f75844SAndroid Build Coastguard Worker #endif
19*d9f75844SAndroid Build Coastguard Worker 
20*d9f75844SAndroid Build Coastguard Worker namespace webrtc {
21*d9f75844SAndroid Build Coastguard Worker 
YieldCurrentThread()22*d9f75844SAndroid Build Coastguard Worker void YieldCurrentThread() {
23*d9f75844SAndroid Build Coastguard Worker   // TODO(bugs.webrtc.org/11634): use dedicated OS functionality instead of
24*d9f75844SAndroid Build Coastguard Worker   // sleep for yielding.
25*d9f75844SAndroid Build Coastguard Worker #if defined(WEBRTC_WIN)
26*d9f75844SAndroid Build Coastguard Worker   ::Sleep(0);
27*d9f75844SAndroid Build Coastguard Worker #elif defined(WEBRTC_MAC) && defined(RTC_USE_NATIVE_MUTEX_ON_MAC) && \
28*d9f75844SAndroid Build Coastguard Worker     !RTC_USE_NATIVE_MUTEX_ON_MAC
29*d9f75844SAndroid Build Coastguard Worker   sched_yield();
30*d9f75844SAndroid Build Coastguard Worker #else
31*d9f75844SAndroid Build Coastguard Worker   static const struct timespec ts_null = {0};
32*d9f75844SAndroid Build Coastguard Worker   nanosleep(&ts_null, nullptr);
33*d9f75844SAndroid Build Coastguard Worker #endif
34*d9f75844SAndroid Build Coastguard Worker }
35*d9f75844SAndroid Build Coastguard Worker 
36*d9f75844SAndroid Build Coastguard Worker }  // namespace webrtc
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