[GHC] #4144: Exception: ToDo: hGetBuf - when using custom handle infrastructure

[GHC]

#4144: Exception: ToDo: hGetBuf - when using custom handle infrastructure
----------------------------+-----------------------------------------------
  Reporter:  AntoineLatter  |          Owner:                
      Type:  bug            |         Status:  closed        
  Priority:  normal         |      Milestone:                
 Component:  Compiler       |        Version:  6.12.3        
Resolution:  fixed          |       Keywords:                
Difficulty:                 |             Os:  MacOS X       
  Testcase:                 |   Architecture:  x86_64 (amd64)
   Failure:  Runtime crash  |  
----------------------------+-----------------------------------------------
Changes (by simonmar):

  * status:  new => closed
  * resolution:  => fixed


Comment:

 This should fix it:

 {{{
 Thu Jun 24 14:04:25 BST 2010  Simon Marlow <marlowsd at gmail.com>
   * make the hGetBuf/hPutBuf family work with non-FD Handles (#4144)
 }}}

 if it doesn't find an FD in the Handle, it uses the normal buffered
 operations.  Perhaps we could improve matters by allowing Handles to
 optionally provide `RawIO`, but that's something for another day.

 {{{
 Prelude ByteStringHandle> bsHandle "test" "<fake file>" >>=
 Data.ByteString.Char8.hGetContents
 Loading package bytestring-0.9.1.7 ... linking ... done.
 "test"
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4144#comment:3>
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