commit db1e7fc69bb10370dd5ea720ecfcfd466a69bbb7
from: Omar Polo <op@omarpolo.com>
date: Fri Jul 16 08:45:10 2021 UTC

initialize events: prevents libevent2 from crashing

clechoev and resizeev are two globally defined event, and thus
guaranteed to be zeroed.  While OpenBSD' libevent1 is fine when
calling event_pending on such events, libevent2 complains and,
probably depending on which flags were used, crashes.

Prompted and tested by Andrea Feletto, thanks!

commit - a1e5a814946390aac545d5ad478b1adb6ff5f112
commit + db1e7fc69bb10370dd5ea720ecfcfd466a69bbb7
blob - 692b3acb5729ed62f42cd74e64129baa3362b8dd
blob + 3d9ae7c7a7c78a09dcc103d0f06b177b4abc5d4c
--- ui.c
+++ ui.c
@@ -1236,6 +1236,15 @@ ui_init()
 
 	mvwprintw(body, 0, 0, "");
 
+	/*
+	 * Dummy so libevent2 won't complain that no event_base is set
+	 * when checking event_pending for the first time
+	 */
+	evtimer_set(&clechoev, handle_clear_echoarea, NULL);
+	evtimer_add(&clechoev, &clechoev_timer);
+	evtimer_set(&resizeev, handle_resize, NULL);
+	evtimer_add(&resizeev, &resize_timer);
+
 	event_set(&stdioev, 0, EV_READ | EV_PERSIST, dispatch_stdio, NULL);
 	event_add(&stdioev, NULL);