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I've believe I have encountered an issue with my use of tmpnam().
If 2 jobs use tmpnam() at the same timestamp moment, I *think* the same filename is returned (though I don't know how to test this scenario).
I haven't coded to handle this possibility, and end up with two jobs trying to create the same temporary IFS file.
I was thinking that a solution could be just prefix/suffix the job number to the filename returned by tmpnam().
Does that seem like a feasible solution ?
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