X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fcacheout.pl;h=d2669a1cfa82f60c16250250790eae66f0c640ca;hb=4bd7b839c96352aa075f714f4c1aaa963c29018e;hp=106014cc5d3a10d8b4b290c9a1695a806f508b35;hpb=39c3038ca76b338006c640ae6da52b407dd9e654;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/lib/cacheout.pl b/lib/cacheout.pl
index 106014c..d2669a1 100644
--- a/lib/cacheout.pl
+++ b/lib/cacheout.pl
@@ -1,4 +1,11 @@
-#!/usr/bin/perl
+#
+# This library is no longer being maintained, and is included for backward
+# compatibility with Perl 4 programs which may require it.
+#
+# In particular, this should not be used as an example of modern Perl
+# programming techniques.
+#
+# Suggested alternative: FileCache
 
 # Open in their package.
 
@@ -6,20 +13,24 @@ sub cacheout'open {
     open($_[0], $_[1]);
 }
 
+# Close as well
+
+sub cacheout'close {
+    close($_[0]);
+}
+
 # But only this sub name is visible to them.
 
 sub cacheout {
     package cacheout;
 
     ($file) = @_;
-    ($package) = caller;
     if (!$isopen{$file}) {
 	if (++$numopen > $maxopen) {
-	    sub byseq {$isopen{$a} != $isopen{$b};}
-	    local(@lru) = sort byseq keys(%isopen);
+	    local(@lru) = sort {$isopen{$a} <=> $isopen{$b};} keys(%isopen);
 	    splice(@lru, $maxopen / 3);
 	    $numopen -= @lru;
-	    for (@lru) { close $_; delete $isopen{$_}; }
+	    for (@lru) { &close($_); delete $isopen{$_}; }
 	}
 	&open($file, ($saw{$file}++ ? '>>' : '>') . $file)
 	    || die "Can't create $file: $!\n";
@@ -33,9 +44,9 @@ $seq = 0;
 $numopen = 0;
 
 if (open(PARAM,'/usr/include/sys/param.h')) {
-    local($.);
+    local($_, $.);
     while (<PARAM>) {
-	$maxopen = $1 - 4 if /^#define NOFILE\s+(\d+)/;
+	$maxopen = $1 - 4 if /^\s*#\s*define\s+NOFILE\s+(\d+)/;
     }
     close PARAM;
 }