From: minima <minima>
Date: Thu, 7 Oct 2004 13:38:52 +0000 (+0000)
Subject: add comments about race condx
X-Git-Tag: 1.53~219
X-Git-Url: http://dxcluster.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=0e845eee9c8fcc754e9f6a238750fd93822b9506;p=spider.git

add comments about race condx
---

diff --git a/perl/importwwv.pl b/perl/importwwv.pl
index bca63688..2a86e0de 100755
--- a/perl/importwwv.pl
+++ b/perl/importwwv.pl
@@ -101,6 +101,10 @@ sub out
 	open OUT, ">$tmp/$fn" or die "import $tmp/$fn $!";
 	print OUT map { "$_\n" } @_;
 	close OUT;
+
+	# Note we do this this way to make the appearance of
+	# the file in /spider/chat_import atomic. Otherwise there
+	# exists the possiblity of race conditions and other nasties
 	link "$tmp/$fn", "$import/$fn";
 	unlink "$tmp/$fn";
 }