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Diffstat (limited to 'lib/threadsafe_queue_priority.h')
-rw-r--r-- | lib/threadsafe_queue_priority.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/lib/threadsafe_queue_priority.h b/lib/threadsafe_queue_priority.h new file mode 100644 index 0000000..8d3cdf1 --- /dev/null +++ b/lib/threadsafe_queue_priority.h @@ -0,0 +1,64 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * threadsafe_queue_priority.h + * + * Tue Sep 27 14:01:24 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_PRIORITY_H__ +#define __MIAV_THREADSAFE_QUEUE_PRIORITY_H__ + +#include "threadsafe_queue.h" + +#include "frame.h" + +#include <queue> +#include <functional> + +#include "info.h" + +// Method for use, when comparing Frames in priority queue. +template <typename T> +struct priority : std::binary_function<T, T, bool> { + bool operator() (const T& a, const T& b) const { + return ((Frame*)a)->number > ((Frame*)b)->number; + } +}; + +class ThreadSafeQueuePriority: public ThreadSafeQueue< Frame* > { +public: + ThreadSafeQueuePriority(Info *info, unsigned int framenumber = 0); + ~ThreadSafeQueuePriority(); + + void push(Frame *frame); + Frame *pop(); + int size(); + +private: + Info* info; + + unsigned int framenumber; + std::priority_queue< Frame*, std::vector<Frame*>, priority<Frame*> > queue; +}; + +#endif/*__MIAV_THREADSAFE_QUEUE_PRIORITY_H__*/ |