use concrete errors

1 files changed, 7 insertions, 1 deletions

diff --git a/src/events.h b/src/events.h
index 6332c4e..3e7be19 100644
--- a/src/events.h
+++ b/src/events.h
@@ -43,6 +43,11 @@ struct eventloop_s;
 typedef void (*event_handler_t)(struct eventloop_s* loop,
                                 struct event_s* event);
 
+enum eventloop_error_e {
+  EVENTLOOP_ERROR_NONE = 0,
+  EVENTLOOP_ERROR_WLSTATE,
+};
+
 struct eventloop_s {
   window_id_t winid;
   struct wlstate_s state;
@@ -52,7 +57,8 @@ struct eventloop_s {
   bool running;
 };
 
-bool wayc_eventloop_init(struct eventloop_s* loop, event_handler_t handler);
+enum eventloop_error_e wayc_eventloop_init(struct eventloop_s* loop,
+                                           event_handler_t handler);
 void wayc_eventloop_deinit(struct eventloop_s* loop);
 window_id_t wayc_eventloop_register(struct eventloop_s* loop,
                                     struct window_s* window);