Victorien Le Couviour--Tuffet
64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/*
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* Copyright © 2019, VideoLAN and dav1d authors
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Dav1dPlay FIFO helper
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*/
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typedef struct dp_fifo Dav1dPlayPtrFifo;
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/* Create a FIFO
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*
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* Creates a FIFO with the given capacity.
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* If the capacity is reached, new inserts into the FIFO
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* will block until enough space is available again.
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*/
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Dav1dPlayPtrFifo *dp_fifo_create(size_t capacity);
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/* Destroy a FIFO
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*
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* The FIFO must be empty before it is destroyed!
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*/
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void dp_fifo_destroy(Dav1dPlayPtrFifo *fifo);
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/* Shift FIFO
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*
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* Return the first item from the FIFO, thereby removing it from
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* the FIFO and making room for new entries.
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*/
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void *dp_fifo_shift(Dav1dPlayPtrFifo *fifo);
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/* Push to FIFO
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*
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* Add an item to the end of the FIFO.
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* If the FIFO is full, this call will block until there is again enough
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* space in the FIFO, so calling this from the "consumer" thread if no
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* other thread will call dp_fifo_shift will lead to a deadlock.
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*/
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void dp_fifo_push(Dav1dPlayPtrFifo *fifo, void *element);
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void dp_fifo_flush(Dav1dPlayPtrFifo *fifo, void (*destroy_elem)(void *));
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