Actually, that wouldn't prevent duplicate filenames at all, depending on how fast you're generating filenames. For example, look what the following does:
while (1) {
    print $$.time."\n";
}

[download]

Also, on Win32, there's a non-zero chance of a PID being reused.

In reply to Re: Re: "unique" filename? by myocom
in thread "unique" filename? by le

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