58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/*
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* Copyright (c) 2015 John R. Bradley <jrb@turrettech.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <pthread.h>
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#include <libavutil/mem.h>
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#include <stdbool.h>
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struct ff_circular_queue {
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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void **slots;
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int item_size;
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int capacity;
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int size;
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int write_index;
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int read_index;
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bool abort;
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};
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typedef struct ff_circular_queue ff_circular_queue_t;
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bool ff_circular_queue_init(struct ff_circular_queue *cq, int item_size,
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int capacity);
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void ff_circular_queue_abort(struct ff_circular_queue *cq);
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void ff_circular_queue_free(struct ff_circular_queue *cq);
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void ff_circular_queue_wait_write(struct ff_circular_queue *cq);
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void *ff_circular_queue_peek_write(struct ff_circular_queue *cq);
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void ff_circular_queue_advance_write(struct ff_circular_queue *cq, void *item);
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void *ff_circular_queue_peek_read(struct ff_circular_queue *cq);
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void ff_circular_queue_advance_read(struct ff_circular_queue *cq);
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#ifdef __cplusplus
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}
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#endif
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