mirror of
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49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2021 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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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, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "common/countedbuffer.h"
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#include <stdlib.h>
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#include <stdatomic.h>
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struct CountedBuffer * countedBufferNew(size_t size)
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{
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struct CountedBuffer * buffer = malloc(sizeof(*buffer) + size);
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if (!buffer)
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return NULL;
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atomic_init(&buffer->refs, 1);
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buffer->size = size;
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return buffer;
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}
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void countedBufferAddRef(struct CountedBuffer * buffer)
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{
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atomic_fetch_add(&buffer->refs, 1);
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}
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void countedBufferRelease(struct CountedBuffer ** buffer)
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{
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if (atomic_fetch_sub(&(*buffer)->refs, 1) == 1)
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{
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free(*buffer);
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*buffer = NULL;
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}
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}
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