condition-variable.cc

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// Copyright 2013 the V8 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.
 
#include "src/base/platform/condition-variable.h"
 
#include <errno.h>
#include <time.h>
 
#include "absl/time/time.h"
#include "src/base/platform/time.h"
 
#if V8_OS_WIN
#include <windows.h>
#endif
 
namespace v8 {
namespace base {
 
ConditionVariable::ConditionVariable() = default;
ConditionVariable::~ConditionVariable() = default;
 
void ConditionVariable::NotifyOne() { native_handle_.Signal(); }
 
void ConditionVariable::NotifyAll() { native_handle_.SignalAll(); }
 
void ConditionVariable::Wait(Mutex* mutex) {
  mutex->AssertHeldAndUnmark();
  native_handle_.Wait(&mutex->native_handle_);
  mutex->AssertUnheldAndMark();
}
 
bool ConditionVariable::WaitFor(Mutex* mutex, const TimeDelta& rel_time) {
  uint64_t time = rel_time.InNanoseconds();
  absl::Duration duration = absl::Nanoseconds(time);
 
  mutex->AssertHeldAndUnmark();
  bool timed_out =
      native_handle_.WaitWithTimeout(&mutex->native_handle_, duration);
 
  mutex->AssertUnheldAndMark();
 
  return !timed_out;
}
 
}  // namespace base
}  // namespace v8