From: Mischa POSLAWSKY <perl@shiar.org>
Date: Thu, 12 Sep 2019 17:07:24 +0000 (+0200)
Subject: prefer SIGINFO for statistics if available
X-Git-Tag: v1.06~6
X-Git-Url: http://git.shiar.nl/barcat.git/commitdiff_plain/a635fe75ffafbd544463f4ab569f77f5d3e49ed0

prefer SIGINFO for statistics if available

A far more appropriate signal for non-quitting interrupts,
unfortunately only available on BSDs (bound to ctrl-T).

Keep fallback to SIGQUIT as support on linux does not seem imminent
:(http://lkml.iu.edu/hypermail/linux/kernel/1411.0/03374.html).
---

diff --git a/barcat b/barcat
index 650e406..de3f6f8 100755
--- a/barcat
+++ b/barcat
@@ -87,7 +87,7 @@ $opt{'value-length'} = 1 if $opt{unmodified};
 
 my (@lines, @values, @order);
 
-$SIG{QUIT} = \&show_stat;
+$SIG{$_} = \&show_stat for exists $SIG{INFO} ? 'INFO' : 'QUIT';
 $SIG{ALRM} = sub {
 	show_lines();
 	alarm $opt{interval} if defined $opt{interval} and $opt{interval} > 0;