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-rw-r--r-- | src/pulsecore/semaphore-osx.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/pulsecore/semaphore-osx.c b/src/pulsecore/semaphore-osx.c new file mode 100644 index 00000000..73f43559 --- /dev/null +++ b/src/pulsecore/semaphore-osx.c @@ -0,0 +1,63 @@ +/*** + This file is part of PulseAudio. + + Copyright 2009 Kim Lester <kim@dfusion.com.au> + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2.1 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <Multiprocessing.h> + +#include <pulse/xmalloc.h> +#include <pulsecore/macro.h> + +#include "semaphore.h" + +struct pa_semaphore +{ + MPSemaphoreID sema; +}; + +pa_semaphore* pa_semaphore_new(unsigned int value) { + /* NOTE: Can't assume boolean - ie value = 0,1, so use UINT_MAX (boolean more efficient ?) */ + pa_semaphore *s; + + s = pa_xnew(pa_semaphore, 1); + pa_assert_se(MPCreateSemaphore(UINT_MAX, value, &s->sema) == 0); + + return s; +} + +void pa_semaphore_free(pa_semaphore *s) { + pa_assert(s); + pa_assert_se(MPDeleteSemaphore(s->sema) == 0); + pa_xfree(s); +} + +void pa_semaphore_post(pa_semaphore *s) { + pa_assert(s); + pa_assert_se(MPSignalSemaphore(s->sema) == 0); +} + +void pa_semaphore_wait(pa_semaphore *s) { + pa_assert(s); + /* should probably check return value (-ve is error), noErr is ok. */ + pa_assert_se(MPWaitOnSemaphore(s->sema, kDurationForever) == 0); +} |