mirrors/pulseaudio
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git synced 2025-11-09 13:29:59 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

merge 'lennart' branch back into trunk.

Browse source 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1971 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-10-28 19:13:50 +00:00
parent 6687dd0131
commit a67c21f093
294 changed files with 79057 additions and 11614 deletions
Download patch file Download diff file Expand all files Collapse all files

48
src/pulsecore/once.h
View file

@ -25,16 +25,52 @@
***/
#include <pulsecore/mutex.h>
#include <pulsecore/atomic.h>
typedef struct pa_once {
unsigned int once_value;
pa_mutex *mutex;
} pa_once_t;
pa_atomic_ptr_t mutex;
pa_atomic_t ref, done;
} pa_once;
#define PA_ONCE_INIT { .once_value = 0, .mutex = NULL }
#define PA_ONCE_INIT \
{ \
.mutex = PA_ATOMIC_PTR_INIT(NULL), \
.ref = PA_ATOMIC_INIT(0), \
.done = PA_ATOMIC_INIT(0) \
}
/* Not to be called directly, use the macros defined below instead */
int pa_once_begin(pa_once *o);
void pa_once_end(pa_once *o);
#define PA_ONCE_BEGIN \
do { \
static pa_once _once = PA_ONCE_INIT; \
if (pa_once_begin(&_once)) {{
#define PA_ONCE_END \
} \
pa_once_end(&_once); \
} \
} while(0)
/*
Usage of these macros is like this:
void foo() {
PA_ONCE_BEGIN {
... stuff to be called just once ...
} PA_ONCE_END;
}
*/
/* Same API but calls a function */
typedef void (*pa_once_func_t) (void);
void pa_once(pa_once_t *o, pa_once_func_t f);
void pa_run_once(pa_once *o, pa_once_func_t f);
#endif