diff options
author | Lennart Poettering <lennart@poettering.net> | 2009-07-20 17:34:17 +0200 |
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committer | Lennart Poettering <lennart@poettering.net> | 2009-07-20 17:34:17 +0200 |
commit | 18e975fc5ef68a89875c77974570884b9214a009 (patch) | |
tree | e0346c369315e71f386190c19ad4a1c06d5b526e /src/pulsecore/semaphore.h | |
parent | 3a09a88fd1f3dfe365dc1f3e455c097010d00964 (diff) |
mergedrtpoll
Diffstat (limited to 'src/pulsecore/semaphore.h')
-rw-r--r-- | src/pulsecore/semaphore.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/pulsecore/semaphore.h b/src/pulsecore/semaphore.h index dc3ca6a5..2bf81496 100644 --- a/src/pulsecore/semaphore.h +++ b/src/pulsecore/semaphore.h @@ -22,6 +22,9 @@ USA. ***/ +#include <pulsecore/macro.h> +#include <pulsecore/atomic.h> + typedef struct pa_semaphore pa_semaphore; pa_semaphore* pa_semaphore_new(unsigned value); @@ -30,4 +33,16 @@ void pa_semaphore_free(pa_semaphore *m); void pa_semaphore_post(pa_semaphore *m); void pa_semaphore_wait(pa_semaphore *m); +/* Static semaphores are basically just atomically updated pointers to + * pa_semaphore objects */ + +typedef struct pa_static_semaphore { + pa_atomic_ptr_t ptr; +} pa_static_semaphore; + +#define PA_STATIC_SEMAPHORE_INIT { PA_ATOMIC_PTR_INIT(NULL) } + +/* When you call this make sure to pass always the same value parameter! */ +pa_semaphore* pa_static_semaphore_get(pa_static_semaphore *m, unsigned value); + #endif |