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Diffstat (limited to 'src/threadsafe_queue_fifo.h')
-rw-r--r-- | src/threadsafe_queue_fifo.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/threadsafe_queue_fifo.h b/src/threadsafe_queue_fifo.h new file mode 100644 index 0000000..84b2fbb --- /dev/null +++ b/src/threadsafe_queue_fifo.h @@ -0,0 +1,82 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * threadsafe_queue_fifo.h + * + * Tue Sep 27 14:01:10 CEST 2005 + * Copyright 2005 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of MIaV. + * + * MIaV is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MIaV 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with MIaV; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "config.h" +#ifndef __MIAV_THREADSAFE_QUEUE_FIFO_H__ +#define __MIAV_THREADSAFE_QUEUE_FIFO_H__ + +#include "threadsafe_queue.h" +#include <queue> + +template <typename T> +class ThreadSafeQueueFIFO: public ThreadSafeQueue<T> { +public: + ThreadSafeQueueFIFO() {} + ~ThreadSafeQueueFIFO() {} + + void push(T t) { + // Lock mutex + pthread_mutex_lock( &mutex ); + queue.push(t); + pthread_mutex_unlock( &mutex ); + // Unlock mutex + + sem_post(&semaphore); + } + + T pop() { + sem_wait(&semaphore); + T t; + + // Lock mutex + pthread_mutex_lock( &mutex ); + t = queue.front(); + queue.pop(); + pthread_mutex_unlock( &mutex ); + // Unlock mutex + + return t; + } + + int size() { + int sz; + + // Lock mutex + pthread_mutex_lock( &mutex ); + sz = queue.size(); + pthread_mutex_unlock( &mutex ); + // Unlock mutex + + return sz; + } + +private: + std::queue<T> queue; +}; + + + +#endif/*__MIAV_THREADSAFE_QUEUE_FIFO_H__*/ |