[GHC] #1049: A means of testing whether code is in blocked or unblocked mode

[GHC]

#1049: A means of testing whether code is in blocked or unblocked mode
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    Reporter:  ChrisKuklewicz    |       Owner:             
        Type:  feature request   |      Status:  new        
    Priority:  low               |   Milestone:             
   Component:  libraries/base    |     Version:  6.6        
    Severity:  normal            |    Keywords:  concurrency
  Difficulty:  Moderate (1 day)  |    Testcase:             
Architecture:  Multiple          |          Os:  Multiple   
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There is currently no way for code, e.g. in a library, to test whether it
 is running in a blocked or unblocked state.  The only uses I have for this
 is to implement work arounds for the problem with throwTo & block (ticket
 1047) or to write forkInheritIO in terms of forkIO and forkBlockedIO (from
 ticket 1048).

 something like:

 areExceptionsBlocked :: IO Bool -- True in scope of block, false in scope
 of unblock

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1049>
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