mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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22cb23eedb
split polyplib to multiple modules add some prelimenary documentation add doxygen support git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@123 fefdeb5f-60dc-0310-8127-8f9354f1896f
127 lines
3.2 KiB
C
127 lines
3.2 KiB
C
/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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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 <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <string.h>
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#include "memblock.h"
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#include "xmalloc.h"
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static unsigned memblock_count = 0, memblock_total = 0;
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struct pa_memblock *pa_memblock_new(size_t length) {
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struct pa_memblock *b = pa_xmalloc(sizeof(struct pa_memblock)+length);
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b->type = PA_MEMBLOCK_APPENDED;
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b->ref = 1;
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b->length = length;
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b->data = b+1;
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b->free_cb = NULL;
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memblock_count++;
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memblock_total += length;
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return b;
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}
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struct pa_memblock *pa_memblock_new_fixed(void *d, size_t length) {
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struct pa_memblock *b = pa_xmalloc(sizeof(struct pa_memblock));
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b->type = PA_MEMBLOCK_FIXED;
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b->ref = 1;
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b->length = length;
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b->data = d;
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b->free_cb = NULL;
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memblock_count++;
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memblock_total += length;
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return b;
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}
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struct pa_memblock *pa_memblock_new_dynamic(void *d, size_t length) {
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struct pa_memblock *b = pa_xmalloc(sizeof(struct pa_memblock));
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b->type = PA_MEMBLOCK_DYNAMIC;
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b->ref = 1;
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b->length = length;
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b->data = d;
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b->free_cb = NULL;
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memblock_count++;
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memblock_total += length;
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return b;
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}
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struct pa_memblock *pa_memblock_new_user(void *d, size_t length, void (*free_cb)(void *p)) {
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struct pa_memblock *b;
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assert(d && length && free_cb);
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b = pa_xmalloc(sizeof(struct pa_memblock));
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b->type = PA_MEMBLOCK_USER;
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b->ref = 1;
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b->length = length;
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b->data = d;
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b->free_cb = free_cb;
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memblock_count++;
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memblock_total += length;
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return b;
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}
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struct pa_memblock* pa_memblock_ref(struct pa_memblock*b) {
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assert(b && b->ref >= 1);
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b->ref++;
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return b;
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}
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void pa_memblock_unref(struct pa_memblock*b) {
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assert(b && b->ref >= 1);
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if ((--(b->ref)) == 0) {
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memblock_count--;
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memblock_total -= b->length;
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if (b->type == PA_MEMBLOCK_USER) {
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assert(b->free_cb);
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b->free_cb(b->data);
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} else if (b->type == PA_MEMBLOCK_DYNAMIC)
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pa_xfree(b->data);
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pa_xfree(b);
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}
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}
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void pa_memblock_unref_fixed(struct pa_memblock *b) {
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assert(b && b->ref >= 1 && b->type == PA_MEMBLOCK_FIXED);
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if (b->ref == 1)
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pa_memblock_unref(b);
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else {
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b->data = pa_xmemdup(b->data, b->length);
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b->type = PA_MEMBLOCK_DYNAMIC;
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b->ref--;
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}
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}
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unsigned pa_memblock_get_count(void) {
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return memblock_count;
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}
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unsigned pa_memblock_get_total(void) {
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return memblock_total;
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}
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