X-Git-Url: http://git.indexdata.com/cgi-bin?a=blobdiff_plain;ds=sidebyside;f=lib%2FIndexData%2FUtils%2FPersistentCounter.pm;h=95e18bc01ebb0972d58f19d43f5217bdaf4fc654;hb=814599b13f90ab9771f5e22f0eac35e2d987deee;hp=57792619f9f882d77a6dd92eb869f3f636615284;hpb=22a00ad235c759af2087b7912e613fff09ae9f54;p=perl-indexdata-utils.git

diff --git a/lib/IndexData/Utils/PersistentCounter.pm b/lib/IndexData/Utils/PersistentCounter.pm
index 5779261..95e18bc 100644
--- a/lib/IndexData/Utils/PersistentCounter.pm
+++ b/lib/IndexData/Utils/PersistentCounter.pm
@@ -4,4 +4,38 @@ use 5.018002;
 use strict;
 use warnings;
 
+use IO::File;
+
+
+sub new {
+    my $class = shift();
+    my($file, $create) = @_;
+
+    if (! -f $file) {
+	return undef if !$create;
+	#   ###	There is a bit of a race condition here, but it's not
+	#	something that's going to crop up in real life.
+	my $fh = new IO::File(">$file") || return undef;
+	$fh->print("1\n");
+	$fh->close() or return undef;
+    }
+
+    my $this = bless {
+	file => $file,
+    }, $class;
+
+    return $this;
+}
+
+
+sub next {
+    my $this = shift();
+}
+
+
+sub delete {
+    my $this = shift();
+}
+
+
 1;