semaphore: libvips Reference Manual

semaphore

int
vips_semaphore_up (VipsSemaphore *s);

int
vips_semaphore_down (VipsSemaphore *s);

int
vips_semaphore_upn (VipsSemaphore *s,
                    int n);

int
vips_semaphore_downn (VipsSemaphore *s,
                      int n);

void
vips_semaphore_destroy (VipsSemaphore *s);

void
vips_semaphore_init (VipsSemaphore *s,
                     int v,
                     char *name);

typedef struct {
	char *name;
	int v;

	GMutex *mutex;
	GCond *cond;
} VipsSemaphore;