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69 lines
2.9 KiB
C
69 lines
2.9 KiB
C
#ifndef foopulseflisthfoo
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#define foopulseflisthfoo
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/***
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This file is part of PulseAudio.
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Copyright 2006-2008 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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PulseAudio 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 Lesser General Public
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License along with PulseAudio; 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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#include <pulse/def.h>
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#include <pulse/gccmacro.h>
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#include <pulsecore/once.h>
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#include <pulsecore/core-util.h>
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/* A multiple-reader multipler-write lock-free free list implementation */
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typedef struct pa_flist pa_flist;
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/* Size is required to be a power of two, or 0 for the default size */
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pa_flist * pa_flist_new(unsigned size);
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void pa_flist_free(pa_flist *l, pa_free_cb_t free_cb);
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/* Please note that this routine might fail! */
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int pa_flist_push(pa_flist*l, void *p);
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void* pa_flist_pop(pa_flist*l);
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/* Please not that the destructor stuff is not really necesary, we do
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* this just to make valgrind output more useful. */
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#define PA_STATIC_FLIST_DECLARE(name, size, free_cb) \
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static struct { \
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pa_flist *flist; \
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pa_once once; \
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} name##_flist = { NULL, PA_ONCE_INIT }; \
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static void name##_flist_init(void) { \
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name##_flist.flist = pa_flist_new(size); \
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} \
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static inline pa_flist* name##_flist_get(void) { \
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pa_run_once(&name##_flist.once, name##_flist_init); \
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return name##_flist.flist; \
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} \
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static void name##_flist_destructor(void) PA_GCC_DESTRUCTOR; \
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static void name##_flist_destructor(void) { \
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if (!pa_in_valgrind()) \
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return; \
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if (name##_flist.flist) \
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pa_flist_free(name##_flist.flist, (free_cb)); \
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} \
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struct __stupid_useless_struct_to_allow_trailing_semicolon
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#define PA_STATIC_FLIST_GET(name) (name##_flist_get())
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#endif
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