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51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
/** Wrapper around queue that uses POSIX CV's for signalling writes.
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*
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* @file
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* @author Georg Martin Reinke <georg.reinke@rwth-aachen.de>
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* @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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#pragma once
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#include <pthread.h>
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#include "queue.h"
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/** Wrapper around queue that uses POSIX CV's for signalling writes. */
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struct queue_signalled {
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struct queue queue; /**< Actual underlying queue. */
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pthread_cond_t ready; /**< Condition variable to signal writes to the queue. */
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pthread_mutex_t mutex; /**< Mutex for ready. */
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};
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#define queue_signalled_available(q) queue_available(&((q)->queue))
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int queue_signalled_init(struct queue_signalled *qs, size_t size, struct memtype *mem);
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int queue_signalled_destroy(struct queue_signalled *qs);
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int queue_signalled_push(struct queue_signalled *qs, void *ptr);
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int queue_signalled_pull(struct queue_signalled *qs, void **ptr);
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int queue_signalled_push_many(struct queue_signalled *qs, void *ptr[], size_t cnt);
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int queue_signalled_pull_many(struct queue_signalled *qs, void *ptr[], size_t cnt);
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int queue_signalled_close(struct queue_signalled *qs);
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