Just to keep everyone on the same page: An official fix for this has been
committed to the master branch. Here's the patch:
>From 70f9db3cbdc0a3c6b622e64edbd504592f921892 Mon Sep 17 00:00:00 2001
From: Stephen Oberholtzer <ste...@qrpff.net>
Date: Tue, 21 Mar 2017 09:08:42 -0400
Subject: [PATCH] Fix delay at startup when running against glib 2.49.3+
In glib v2.49.3, an optimization was made to eliminate certain
unnecessary wakeups. (The specific change was made in
e4ee3079c5afc3c1c3d2415f20c3e8605728f074). Before this change, the
first call to g_main_iteration would always complete immediately.
In Irssi, this effectively reversed the order of the main loop, causing
the reload_config check and the dirty_check to run *before* the first
blocking call to g_main_iteration.
With the new logic, the first g_main_iteration call now blocks,
preventing the screen from being refreshed until the user starts typing
or a timer goes off. (It also delays processing of SIGHUP, but I
expect that is not a common situation.)
This commit reorders the main loop to wait at the end of the loop,
rather than the beginning, addressing the problem.
(This closes Debian bug #856201.)
---
src/fe-text/irssi.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/fe-text/irssi.c b/src/fe-text/irssi.c
index ad79e0c..e9e9b8b 100644
--- a/src/fe-text/irssi.c
+++ b/src/fe-text/irssi.c
@@ -317,10 +317,6 @@ int main(int argc, char **argv)
/* Does the same as g_main_run(main_loop), except we
can call our dirty-checker after each iteration */
while (!quitting) {
- term_refresh_freeze();
- g_main_iteration(TRUE);
- term_refresh_thaw();
-
if (reload_config) {
/* SIGHUP received, do /RELOAD */
reload_config = FALSE;
@@ -328,6 +324,10 @@ int main(int argc, char **argv)
}
dirty_check();
+
+ term_refresh_freeze();
+ g_main_iteration(TRUE);
+ term_refresh_thaw();
}
g_main_destroy(main_loop);
--
2.1.4
