s4:tevent: move event_context_find() to tevent_s4.c

metze

1 files changed, 17 insertions, 0 deletions

diff --git a/source4/lib/events/tevent_s4.c b/source4/lib/events/tevent_s4.c
index b3de7e667a..e50ff57e90 100644
--- a/source4/lib/events/tevent_s4.c
+++ b/source4/lib/events/tevent_s4.c
@@ -70,3 +70,20 @@ struct tevent_context *s4_event_context_init(TALLOC_CTX *mem_ctx)
 	return ev;
 }
 
+/*
+  find an event context that is a parent of the given memory context,
+  or create a new event context as a child of the given context if
+  none is found
+
+  This should be used in preference to event_context_init() in places
+  where you would prefer to use the existing event context if possible
+  (which is most situations)
+*/
+struct tevent_context *event_context_find(TALLOC_CTX *mem_ctx)
+{
+	struct tevent_context *ev = talloc_find_parent_bytype(mem_ctx, struct tevent_context);
+	if (ev == NULL) {		
+		ev = event_context_init(mem_ctx);
+	}
+	return ev;
+}