From: Eric Wong <e@80x24.org>
Date: Sat, 24 Jun 2017 00:52:10 +0000 (+0000)
Subject: spamc: retry on EINTR
X-Git-Tag: v1.0.0~38
X-Git-Url: http://www.git.stargrave.org/?p=public-inbox.git;a=commitdiff_plain;h=d9c9dc5af637e097d545a828d887aae99ddcd2a7

spamc: retry on EINTR

Signals can fire on us at any time if we're using blocking sysread.
---

diff --git a/lib/PublicInbox/Spamcheck/Spamc.pm b/lib/PublicInbox/Spamcheck/Spamc.pm
index 30eec95c..ba8e44a4 100644
--- a/lib/PublicInbox/Spamcheck/Spamc.pm
+++ b/lib/PublicInbox/Spamcheck/Spamc.pm
@@ -29,10 +29,14 @@ sub spamcheck {
 		my $buf = '';
 		$out = \$buf;
 	}
+again:
 	do {
 		$r = sysread($fh, $$out, 65536, length($$out));
 	} while (defined($r) && $r != 0);
-	defined $r or die "read failed: $!";
+	unless (defined $r) {
+		goto again if $!{EINTR};
+		die "read failed: $!";
+	}
 	close $fh or die "close failed: $!";
 	waitpid($pid, 0);
 	($? || $$out eq '') ? 0 : 1;