tevent: Add a utility function tevent_find_ops_byname().

Returns an event ops struct given a string name. Not
yet used, but will be part of the new "standard" fallback
code.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

2 files changed, 23 insertions, 0 deletions

diff --git a/lib/tevent/tevent.c b/lib/tevent/tevent.c
index e307dba3d7..63524710da 100644
--- a/lib/tevent/tevent.c
+++ b/lib/tevent/tevent.c
@@ -121,6 +121,28 @@ static void tevent_backend_init(void)
 	tevent_standard_init();
 }
 
+_PRIVATE_ const struct tevent_ops *tevent_find_ops_byname(const char *name)
+{
+	struct tevent_ops_list *e;
+
+	tevent_backend_init();
+
+	if (name == NULL) {
+		name = tevent_default_backend;
+	}
+	if (name == NULL) {
+		name = "standard";
+	}
+
+	for (e = tevent_backends; e != NULL; e = e->next) {
+		if (0 == strcmp(e->name, name)) {
+			return e->ops;
+		}
+	}
+
+	return NULL;
+}
+
 /*
   list available backends
 */
diff --git a/lib/tevent/tevent_internal.h b/lib/tevent/tevent_internal.h
index 4e9cd69213..fa6652cfa1 100644
--- a/lib/tevent/tevent_internal.h
+++ b/lib/tevent/tevent_internal.h
@@ -265,6 +265,7 @@ struct tevent_context {
 	} tracing;
 };
 
+const struct tevent_ops *tevent_find_ops_byname(const char *name);
 
 int tevent_common_context_destructor(struct tevent_context *ev);
 int tevent_common_loop_wait(struct tevent_context *ev,