Spinlock within the destroy, to allow a scheduled job to continue, if it's

waiting on the mutex which the destroy thread has.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@132042 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/sched.h

@@ -60,6 +60,22 @@ extern "C" {
 		(_sched_res); \
 	})
 
+#define AST_SCHED_DEL_SPINLOCK(sched, id, lock) \
+	({ \
+		int _count = 0; \
+		int _sched_res = -1; \
+		while (id > -1 && (_sched_res = ast_sched_del(sched, id)) && ++_count < 10) { \
+			ast_mutex_unlock(lock); \
+			usleep(1); \
+			ast_mutex_lock(lock); \
+		} \
+		if (_count == 10 && option_debug > 2) { \
+			ast_log(LOG_DEBUG, "Unable to cancel schedule ID %d.\n", id); \
+		} \
+		id = -1; \
+		(_sched_res); \
+	})
+
 struct sched_context;
 
 /*! \brief New schedule context