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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
#ifndef foopulsesemaphorehfoo
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#define foopulsesemaphorehfoo
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/***
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This file is part of PulseAudio.
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Copyright 2006 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 2.1 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 <pulsecore/macro.h>
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#include <pulsecore/atomic.h>
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typedef struct pa_semaphore pa_semaphore;
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pa_semaphore* pa_semaphore_new(unsigned value);
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void pa_semaphore_free(pa_semaphore *m);
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void pa_semaphore_post(pa_semaphore *m);
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void pa_semaphore_wait(pa_semaphore *m);
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/* Static semaphores are basically just atomically updated pointers to
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* pa_semaphore objects */
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typedef struct pa_static_semaphore {
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pa_atomic_ptr_t ptr;
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} pa_static_semaphore;
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#define PA_STATIC_SEMAPHORE_INIT { PA_ATOMIC_PTR_INIT(NULL) }
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/* When you call this make sure to pass always the same value parameter! */
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pa_semaphore* pa_static_semaphore_get(pa_static_semaphore *m, unsigned value);
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#endif
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