# HG changeset patch
# User Jun Wu <quark@fb.com>
# Date 1460248132 -3600
# Node ID b89e4457fa865ee6596157fe7b98639c1c39655e
# Parent  e442b628bfe6485d57ab4f10f941b89e96f04b05
chg: forward SIGWINCH to worker

Before this patch, if the user uses chg and ncurses interface, resizing the
terminal window will mess up its content.

This patch fixes the issue by forwarding SIGWINCH to the worker process.

diff -r e442b628bfe6 -r b89e4457fa86 contrib/chg/chg.c
--- a/contrib/chg/chg.c	Sat Apr 16 18:09:42 2016 -0500
+++ b/contrib/chg/chg.c	Sun Apr 10 01:28:52 2016 +0100
@@ -397,6 +397,10 @@
 	if (sigaction(SIGTERM, &sa, NULL) < 0)
 		goto error;
 
+	/* notify the worker about window resize events */
+	sa.sa_flags = SA_RESTART;
+	if (sigaction(SIGWINCH, &sa, NULL) < 0)
+		goto error;
 	/* propagate job control requests to worker */
 	sa.sa_handler = forwardsignal;
 	sa.sa_flags = SA_RESTART;