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I've encountered the condition where two timestamps are created with the same value.

My "fix" was to attempt to write the TS value to a uniquely keyed file and if a duplicate
key error resulted, the time stamp value would be incremented by a small fraction and
the write retried until a unique value was created . . .

-----Original Message-----
From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of McGovern, Sean
Sent: Tuesday, October 14, 2014 7:20 AM
To: rpg400-l@xxxxxxxxxxxx
Subject: tmpnam() not unique

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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