[GHC] #13554: Allow the user to provide a C function that is called on each thread the RTS creates before running any Haskell code

[GHC]

#13554: Allow the user to provide a C function that is called on each thread the
RTS creates before running any Haskell code
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        Reporter:  dobenour          |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Runtime System    |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 Also, it seems that MySQL requires that you call `mysql_thread_end` on
 thread termination. We would probably also need a callback for this.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13554#comment:3>
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