Add write barrier for waiting fiber.

socketry · Oct 16, 2024 · cec15b1 · cec15b1
1 parent d735f9f
commit cec15b1
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/ext/io/event/selector/epoll.c b/ext/io/event/selector/epoll.c
@@ -510,6 +510,8 @@ VALUE IO_Event_Selector_EPoll_process_wait(VALUE self, VALUE fiber, VALUE _pid,
 		.events = IO_EVENT_READABLE,
 	};
 
+	RB_OBJ_WRITTEN(selector->backend.self, Qundef, fiber);
+
 	int result = IO_Event_Selector_EPoll_Waiting_register(selector, 0, descriptor, &waiting);
 
 	if (result == -1) {
@@ -569,6 +571,8 @@ VALUE IO_Event_Selector_EPoll_io_wait(VALUE self, VALUE fiber, VALUE io, VALUE e
 		.events = RB_NUM2INT(events),
 	};
 
+	RB_OBJ_WRITTEN(selector->backend.self, Qundef, fiber);
+
 	int result = IO_Event_Selector_EPoll_Waiting_register(selector, io, descriptor, &waiting);
 
 	if (result == -1) {