Vyacheslav Egorov
e105029f62
This CL also removes ability to assign names to mutexes which was
added in c25ebfff96 but did not yield
any interesting data.
TEST=ci
CoreLibraryReviewExempt: Changes to dart:concurrent only.
Cq-Include-Trybots: luci.dart.try:vm-fuchsia-release-x64-try,vm-win-debug-x64-try,vm-win-release-x64-try,vm-aot-linux-product-x64-try
Change-Id: Id41e1d29832f6008e02f0a571ee67564e1a84224
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/375300
Reviewed-by: Martin Kustermann <kustermann@google.com>
84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
// Copyright (c) 2024, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/globals.h" // NOLINT
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#if defined(DART_USE_ABSL)
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#include "platform/synchronization.h"
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#include "platform/assert.h"
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#include "platform/utils.h"
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namespace dart {
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Mutex::Mutex() {}
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Mutex::~Mutex() {}
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ABSL_NO_THREAD_SAFETY_ANALYSIS
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void Mutex::Lock() {
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mutex_.Lock();
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owner_.Acquire();
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}
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ABSL_NO_THREAD_SAFETY_ANALYSIS
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bool Mutex::TryLock() {
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if (!mutex_.TryLock()) {
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return false;
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}
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owner_.Acquire();
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return true;
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}
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ABSL_NO_THREAD_SAFETY_ANALYSIS
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void Mutex::Unlock() {
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owner_.Release();
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mutex_.Unlock();
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}
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ConditionVariable::ConditionVariable() {}
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ConditionVariable::~ConditionVariable() {}
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ABSL_NO_THREAD_SAFETY_ANALYSIS
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ConditionVariable::WaitResult ConditionVariable::Wait(Mutex* mutex,
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int64_t timeout_millis) {
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static_assert(kNoTimeout * kMicrosecondsPerMillisecond == kNoTimeout);
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return WaitMicros(mutex, timeout_millis * kMicrosecondsPerMillisecond);
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}
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ABSL_NO_THREAD_SAFETY_ANALYSIS
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ConditionVariable::WaitResult ConditionVariable::WaitMicros(
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Mutex* mutex,
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int64_t timeout_micros) {
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mutex->owner_.Release();
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Monitor::WaitResult retval = kNotified;
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if (timeout_micros == kNoTimeout) {
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// Wait forever.
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cv_.Wait(&mutex->mutex_);
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} else {
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if (cv_.WaitWithTimeout(&mutex->mutex_,
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absl::Microseconds(timeout_micros))) {
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retval = kTimedOut;
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}
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}
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mutex->owner_.Acquire();
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return retval;
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}
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ABSL_NO_THREAD_SAFETY_ANALYSIS
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void ConditionVariable::Notify() {
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cv_.Signal();
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}
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ABSL_NO_THREAD_SAFETY_ANALYSIS
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void ConditionVariable::NotifyAll() {
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cv_.SignalAll();
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}
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} // namespace dart
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#endif // defined(DART_USE_ABSL)
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