Skinny: sleep to lower CPU consomption

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16825 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_skinny/skinny_protocol.c

@@ -360,6 +360,9 @@ switch_status_t skinny_read_packet(listener_t *listener, skinny_message_t **req)
 			switch_clear_flag_locked(listener, LFLAG_RUNNING);
 			return SWITCH_STATUS_FALSE;
 		}
+		if (do_sleep) {
+			switch_cond_next();
+		}
 	}
 	return SWITCH_STATUS_SUCCESS;
 }