user/dev discussion of public-inbox itself
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From: Eric Wong <e@yhbt.net>
To: meta@public-inbox.org
Subject: [PATCH] spamcheck/spamc: use localized slurp to read from spamc
Date: Tue, 19 May 2020 22:45:32 +0000
Message-ID: <20200519224532.17216-1-e@yhbt.net> (raw)

The <EXPR> perlop, `readline', and `read' functions will all
retry on EINTR, so there's no need to retry and loop ourselves
with `sysread'.
---
 lib/PublicInbox/Spamcheck/Spamc.pm | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/lib/PublicInbox/Spamcheck/Spamc.pm b/lib/PublicInbox/Spamcheck/Spamc.pm
index b6098669..3ba2c3c9 100644
--- a/lib/PublicInbox/Spamcheck/Spamc.pm
+++ b/lib/PublicInbox/Spamcheck/Spamc.pm
@@ -23,19 +23,11 @@ sub spamcheck {
 
 	my $rdr = { 0 => _msg_to_fh($self, $msg) };
 	my ($fh, $pid) = popen_rd($self->{checkcmd}, undef, $rdr);
-	my $r;
 	unless (ref $out) {
 		my $buf = '';
 		$out = \$buf;
 	}
-again:
-	do {
-		$r = sysread($fh, $$out, 65536, length($$out));
-	} while (defined($r) && $r != 0);
-	unless (defined $r) {
-		goto again if $!{EINTR};
-		die "read failed: $!";
-	}
+	$$out = do { local $/; <$fh> };
 	close $fh or die "close failed: $!";
 	waitpid($pid, 0);
 	($? || $$out eq '') ? 0 : 1;

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user/dev discussion of public-inbox itself

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