From 23cf7c602a3ec4f10f8eb312e0f38ae8ba9fea29 Mon Sep 17 00:00:00 2001 From: Karl Heuer Date: Fri, 26 Aug 1994 05:18:31 +0000 Subject: [PATCH] (x_make_frame_visible): Call signal handler directly. --- src/xterm.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/src/xterm.c b/src/xterm.c index a900a6e15dd..73515ff3174 100644 --- a/src/xterm.c +++ b/src/xterm.c @@ -5673,10 +5673,15 @@ x_make_frame_visible (f) { x_sync (frame); /* Machines that do polling rather than SIGIO have been observed - to go into a busy-wait here. Send the alarm signal to let - the handler know that there's something to be read. */ + to go into a busy-wait here. So we'll fake an alarm signal + to let the handler know that there's something to be read. + We used to raise a real alarm, but it seems that the handler + isn't always enabled here. This is probably a bug. */ #ifndef SIGIO - kill (getpid(), SIGALRM); + /* It could be confusing if a real alarm arrives while processing + the fake one. Turn it off and let the handler reset it. */ + alarm (0); + input_poll_signal (); #endif } FRAME_SAMPLE_VISIBILITY (f); -- 2.39.5