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48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
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/*
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Looking Glass - KVM FrameRelay (KVMFR) Client
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Copyright (C) 2021 Guanzhong Chen <quantum2048@gmail.com>
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https://looking-glass.hostfission.com
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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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(struct CountedBuffer) + 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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