cc/gapic/lock.h

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * 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.
 */

#ifndef GAPIC_LOCK_H
#define GAPIC_LOCK_H

namespace gapic {

// Lock is a RAII helper that calls T::lock() on construction and T::unlock() on destruction.
template <typename T>
struct Lock {
public:
    inline Lock(T* t);
    inline ~Lock();
private:
    T* _;
};

template <typename T>
inline Lock<T>::Lock(T* t) : _(t) {
    _->lock();
};

template <typename T>
inline Lock<T>::~Lock() {
    _->unlock();
};

} // namespace gapic

#endif // GAPIC_LOCK_H