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C++

/**
* Copyright 2013-2021 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsRAN is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef SRSRAN_RWLOCK_GUARD_H
#define SRSRAN_RWLOCK_GUARD_H
#include <pthread.h>
namespace srsran {
class rwlock_write_guard
{
public:
rwlock_write_guard(pthread_rwlock_t& rwlock_) : rwlock(&rwlock_) { pthread_rwlock_wrlock(rwlock); }
rwlock_write_guard(const rwlock_write_guard&) = delete;
rwlock_write_guard(rwlock_write_guard&&) = delete;
rwlock_write_guard& operator=(const rwlock_write_guard&) = delete;
rwlock_write_guard& operator=(rwlock_write_guard&&) = delete;
~rwlock_write_guard() { pthread_rwlock_unlock(rwlock); }
private:
pthread_rwlock_t* rwlock;
};
// Shared lock guard that automatically unlocks rwlock on exit
class rwlock_read_guard
{
public:
rwlock_read_guard(pthread_rwlock_t& rwlock_) : rwlock(&rwlock_) { pthread_rwlock_rdlock(rwlock); }
rwlock_read_guard(const rwlock_read_guard&) = delete;
rwlock_read_guard(rwlock_read_guard&&) = delete;
rwlock_read_guard& operator=(const rwlock_read_guard&) = delete;
rwlock_read_guard& operator=(rwlock_read_guard&&) = delete;
~rwlock_read_guard() { pthread_rwlock_unlock(rwlock); }
private:
pthread_rwlock_t* rwlock;
};
} // namespace srsran
#endif // SRSRAN_RWLOCK_GUARD_H