[GHC] #9058: System.IO.openTempFile does not scale

[GHC]

#9058: System.IO.openTempFile does not scale
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        Reporter:  slyfox            |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.8.2
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by slyfox):

 Here is one simple solution. it basically changes
   prefix ++ getpid() ++ suffix
 for
   prefix ++ rand() ++ rand() ++ suffix

 Technically rand() might be thread-unsafe
 (but not on glibc, there random_r() is used silently)
 but i don't think it's a troblem at all.

 Otherwise we could use time-based timestamp, but picking
 precise time source (to use it more, than 1000 times a second)
 might be a problem.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9058#comment:1>
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