changed lockfile name to .lck (from .lock) for M$

[spider.git] / perl / create_sysop.pl

diff --git a/perl/create_sysop.pl b/perl/create_sysop.pl
index 52cd941f779c7b05ec6e9e8ebb2c6221c9f8c493..d600ec6ee623515082fc2f113062882d534d3e85 100755 (executable)
--- a/perl/create_sysop.pl
+++ b/perl/create_sysop.pl
@@ -75,6 +75,15 @@ sub create_it
 
 }
 
+$lockfn = "$root/perl/cluster.lck";       # lock file name
+if (-e $lockfn) {
+       open(CLLOCK, "$lockfn") or die "Can't open Lockfile ($lockfn) $!";
+       my $pid = <CLLOCK>;
+       chomp $pid;
+       die "Sorry, Lockfile ($lockfn) and process $pid exist, a cluster is running\n" if kill 0, $pid;
+       close CLLOCK;
+}
+
 if (-e "$userfn") {
        print "Do you wish to destroy your user database (THINK!!!) [y/N]: ";
        $ans = <STDIN>;