this is my file locking function..

but;

it seem to be failure often.

what is problem with my function...!?

and how about you, all?

show me the best file locking example..

thanks

#!perl

my $file = "hanul.txt";

lock($file);
open FILE, ">$file";
print FILE "you're locking...\n";
close FILE;
unlock($file);

# LoCk
sub lock{
    my $lFile = shift;
    my $LockFile = "$lFile.lock";
    my $EndTime = time + 45;
    while (-e $LockFile && time < $EndTime) { }
    if (!open (LOCK,">$LockFile")){
        return 0;
    }
    else{
        chmod 0666, $LockFile;
        $locked = 'Y';
    }
}

# uNLocK
sub unlock 
{
    my $lFile = shift;
    my $LockFile;
    if ($locked eq 'Y'){
        $LockFile = "$lFile.lock";
        close (LOCK);
        if (-e $LockFile) { 
            unlink ($LockFile);
        }
        $locked = 'N';
    }
}
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