---
libavutil/thread.h | 10 ++++++++++
1 file changed, 10 insertions(+)
It isn't exactly beautiful with `!control` used to return 0 and
suppress the unused warning, but seems to work as intended and it
is fully portable, I'd use `({ routine(); !control; })` if we assume
the construct is always supported, but I'm afraid it is not.
diff --git a/libavutil/thread.h b/libavutil/thread.h
index 3556544..d2fb847 100644
--- a/libavutil/thread.h
+++ b/libavutil/thread.h
@@ -39,6 +39,11 @@
#define ff_mutex_unlock pthread_mutex_unlock
#define ff_mutex_destroy pthread_mutex_destroy
+#define AVOnce pthread_once_t
+#define AV_ONCE_INIT PTHREAD_ONCE_INIT
+
+#define ff_thread_once(control, routine) pthread_once(control, routine)
+
#else
#define AVMutex char
@@ -48,6 +53,11 @@
#define ff_mutex_unlock(mutex) (0)
#define ff_mutex_destroy(mutex) (0)
+#define AVOnce char
+#define AV_ONCE_INIT 0
+
+#define ff_thread_once(control, routine) !control; routine();
+
#endif
#endif /* AVUTIL_THREAD_H */
--
2.5.0
_______________________________________________
libav-devel mailing list
[email protected]
https://lists.libav.org/mailman/listinfo/libav-devel
