blob: 7cf64837bc764234f24d66bc6d3590059e87ca20 [file] [log] [blame]
/*
* Copyright 2012 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/lock_impl.h"
#include <errno.h>
#include "base/logging.h"
namespace base {
namespace internal {
LockImpl::LockImpl() {
int rv = lb_shell_mutex_init(&os_lock_);
DCHECK_EQ(rv, 0);
}
LockImpl::~LockImpl() {
int rv = lb_shell_mutex_destroy(&os_lock_);
DCHECK_EQ(rv, 0);
}
bool LockImpl::Try() {
int rv = lb_shell_mutex_trylock(&os_lock_);
DCHECK(rv == 0 || rv == EBUSY);
return rv == 0;
}
void LockImpl::Lock() {
int rv = lb_shell_mutex_lock(&os_lock_);
DCHECK_EQ(rv, 0);
}
void LockImpl::Unlock() {
int rv = lb_shell_mutex_unlock(&os_lock_);
DCHECK_EQ(rv, 0);
}
} // namespace internal
} // namespace base