From: Simon Tatham <anakin@pobox.com>
Date: Sun, 20 Mar 2016 19:44:23 +0000 (+0000)
Subject: GTK3: give I/O events lower priority than window redraws.
X-Git-Tag: 0.68~261
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=ece38fbb211a0d0ab28e8e1356c033e3133c7db2;p=PuTTY.git

GTK3: give I/O events lower priority than window redraws.

If you run something like 'seq 2000000000' in a GTK3 pterm, the window
never actually updates, because pterm always considers reading more
data from the pty to have higher priority than delivering the "draw"
event. Using g_io_add_watch_full instead of g_io_add_watch allows us
to explicitly lower the priority of the I/O sources, so that window
redraws will take precedence.
---

diff --git a/unix/gtkwin.c b/unix/gtkwin.c
index e711458e..2879b57e 100644
--- a/unix/gtkwin.c
+++ b/unix/gtkwin.c
@@ -4053,7 +4053,8 @@ uxsel_id *uxsel_input_add(int fd, int rwx) {
     if (rwx & 4) flags |= G_IO_PRI;
     id->chan = g_io_channel_unix_new(fd);
     g_io_channel_set_encoding(id->chan, NULL, NULL);
-    id->watch_id = g_io_add_watch(id->chan, flags, fd_input_func, NULL);
+    id->watch_id = g_io_add_watch_full(id->chan, GDK_PRIORITY_REDRAW+1, flags,
+                                       fd_input_func, NULL, NULL);
 #else
     int flags = 0;
     if (rwx & 1) flags |= GDK_INPUT_READ;