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// Copyright 2018 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "base/synchronization/condition_variable.h"
#include "base/logging.h"
#include "base/synchronization/lock.h"
#include "base/threading/scoped_blocking_call.h"
#include "base/time/time.h"
#include "starboard/common/condition_variable.h"
#include "starboard/common/mutex.h"
namespace base {
ConditionVariable::ConditionVariable(Lock* user_lock)
: user_mutex_(user_lock->lock_.native_handle())
#if !defined(NDEBUG)
, user_lock_(user_lock)
#endif
{
bool result = SbConditionVariableCreate(&condition_, user_mutex_);
DCHECK(result);
}
ConditionVariable::~ConditionVariable() {
bool result = SbConditionVariableDestroy(&condition_);
DCHECK(result);
}
void ConditionVariable::Wait() {
internal::ScopedBlockingCallWithBaseSyncPrimitives scoped_blocking_call(
BlockingType::MAY_BLOCK);
#if !defined(NDEBUG)
user_lock_->CheckHeldAndUnmark();
#endif
SbConditionVariableResult result =
SbConditionVariableWait(&condition_, user_mutex_);
DCHECK(SbConditionVariableIsSignaled(result));
#if !defined(NDEBUG)
user_lock_->CheckUnheldAndMark();
#endif
}
void ConditionVariable::TimedWait(const TimeDelta& max_time) {
internal::ScopedBlockingCallWithBaseSyncPrimitives scoped_blocking_call(
BlockingType::MAY_BLOCK);
SbTime duration = max_time.ToSbTime();
#if !defined(NDEBUG)
user_lock_->CheckHeldAndUnmark();
#endif
SbConditionVariableResult result =
SbConditionVariableWaitTimed(&condition_, user_mutex_, duration);
DCHECK_NE(kSbConditionVariableFailed, result);
#if !defined(NDEBUG)
user_lock_->CheckUnheldAndMark();
#endif
}
void ConditionVariable::Broadcast() {
bool result = SbConditionVariableBroadcast(&condition_);
DCHECK(result);
}
void ConditionVariable::Signal() {
bool result = SbConditionVariableSignal(&condition_);
DCHECK(result);
}
} // namespace base