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// Copyright (C) 2011 The Libphonenumber Authors
//
// 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.
// Author: Philippe Liard
#ifndef I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_H_
#define I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_H_
#if defined(I18N_PHONENUMBERS_USE_BOOST)
#include <boost/thread/mutex.hpp>
namespace i18n {
namespace phonenumbers {
typedef boost::mutex Lock;
typedef boost::mutex::scoped_lock AutoLock;
} // namespace phonenumbers
} // namespace i18n
#else // I18N_PHONENUMBERS_USE_BOOST
#include "phonenumbers/base/logging.h"
#include "phonenumbers/base/thread_checker.h"
namespace i18n {
namespace phonenumbers {
// Dummy lock implementation. If you care about thread-safety, please compile
// with -DI18N_PHONENUMBERS_USE_BOOST.
class Lock {
public:
Lock() : thread_checker_() {}
void Acquire() const {
DCHECK(thread_checker_.CalledOnValidThread());
}
// No need for Release() since Acquire() is a no-op and Release() is not used
// in the codebase.
private:
const ThreadChecker thread_checker_;
};
class AutoLock {
public:
AutoLock(Lock& lock) {
lock.Acquire();
}
};
} // namespace phonenumbers
} // namespace i18n
#endif // I18N_PHONENUMBERS_USE_BOOST
#endif // I18N_PHONENUMBERS_BASE_SYNCHRONIZATION_LOCK_H_