99 lines
1.9 KiB
C
99 lines
1.9 KiB
C
/* Icecast
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*
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* This program is distributed under the GNU General Public License, version 2.
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* A copy of this license is included with this source.
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*
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* Copyright 2000-2004, Jack Moffitt <jack@xiph.org,
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* Michael Smith <msmith@xiph.org>,
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* oddsock <oddsock@xiph.org>,
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* Karl Heyes <karl@xiph.org>
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* and others (see AUTHORS for details).
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* Copyright 2014-2015, Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
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*/
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/* refbuf.c
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**
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** reference counting buffer implementation
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**
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include "refbuf.h"
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#define CATMODULE "refbuf"
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#include "logging.h"
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void refbuf_initialize(void)
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{
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}
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void refbuf_shutdown(void)
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{
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}
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refbuf_t *refbuf_new (unsigned int size)
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{
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refbuf_t *refbuf;
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refbuf = (refbuf_t *)malloc(sizeof(refbuf_t));
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if (refbuf == NULL)
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abort();
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refbuf->data = NULL;
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if (size)
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{
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refbuf->data = malloc (size);
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if (refbuf->data == NULL)
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abort();
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}
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refbuf->len = size;
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refbuf->sync_point = 0;
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refbuf->_count = 1;
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refbuf->next = NULL;
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refbuf->associated = NULL;
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return refbuf;
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}
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void refbuf_addref(refbuf_t *self)
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{
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self->_count++;
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}
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static void refbuf_release_associated (refbuf_t *ref)
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{
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if (ref == NULL)
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return;
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while (ref)
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{
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refbuf_t *to_go = ref;
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ref = to_go->next;
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if ( to_go->_count == 1 )
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to_go->next = NULL;
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refbuf_release (to_go);
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}
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}
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void refbuf_release(refbuf_t *self)
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{
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if (self == NULL)
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return;
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self->_count--;
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if (self->_count == 0)
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{
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refbuf_release_associated (self->associated);
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if (self->next)
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ICECAST_LOG_ERROR("next not null");
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free(self->data);
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free(self);
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}
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}
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