[GHC] #11394: Base should use native Win32 IO on Windows

[GHC]

#11394: Base should use native Win32 IO on Windows
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        Reporter:  bgamari           |                Owner:  Phyx-
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:  8.8.1
       Component:  Core Libraries    |              Version:  7.10.3
      Resolution:                    |             Keywords:
Operating System:  Windows           |         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 Phyx-):

 deadlock fixed (turns out to be how the scheduler saves and restores
 errors in TLS when the haskell threads are scheduled) and timer manager
 integrated into I/O manager, working on fixing signal handlers and seeing
 if I can get it to work correctly in cygwin hosts like mintty which have
 unfortunately become standard.

 Do still have an issue to fix where there seems to be an outstanding I/O
 request which never finishes.. I think this might be the `LockFile`
 request. Need to investigate.

 Also working on how to implement the non-threaded version. Now that I'm
 unstuck on the deadlock can make some decent progress again.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11394#comment:12>
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