Re: [GHC] #7718: ios patch no 8: adjustor pools

28 Mar 2013

      #7718: ios patch no 8: adjustor pools
--------------------------------+-------------------------------------------
  Reporter:  StephenBlackheath  |          Owner:         
      Type:  feature request    |         Status:  patch  
  Priority:  normal             |      Milestone:         
 Component:  Compiler           |        Version:  7.7    
Resolution:                     |       Keywords:         
        Os:  Other              |   Architecture:  arm    
   Failure:  None/Unknown       |     Difficulty:  Unknown
  Testcase:                     |      Blockedby:         
  Blocking:  7724               |        Related:         
--------------------------------+-------------------------------------------

Comment(by StephenBlackheath):

 I forgot to mention that I re-tested this patch on Linux to make sure my
 refactoring didn't break it:

 {{{
 {-# LANGUAGE ForeignFunctionInterface #-}

 import Foreign
 import Foreign.C

 foreign import ccall "wrapper" wrap :: (CInt -> IO CInt) -> IO (FunPtr
 (CInt -> IO CInt))
 foreign import ccall safe "callme" callme :: (FunPtr (CInt -> IO CInt)) ->
 IO ()

 main = do
     putStrLn "hi"
     f <- wrap $ \i -> do
         putStrLn $ "haskell got "++show i
         return $ i + 1
     callme f
     freeHaskellFunPtr f
     putStrLn "bye"
 }}}

 {{{
 #include <stdio.h>

 int callme(int (*f)(int))
 {
     printf("%d -> %d\n", 5, f(5));
     printf("%d -> %d\n", 10, f(10));
 }
 }}}

 {{{
 hi
 haskell got 5
 5 -> 6
 haskell got 10
 10 -> 11
 bye
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7718#comment:10>
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