#4144: Exception: ToDo: hGetBuf - when using custom handle infrastructure
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Reporter: AntoineLatter | Owner: simonmar
Type: bug | Status: patch
Priority: high | Milestone: 7.8.1
Component: libraries/base | Version: 7.6.1
Resolution: | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: Runtime crash | Difficulty: Unknown
Testcase: | Blockedby:
Blocking: | Related:
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Comment(by simonmar):
You can't do an atomic non-blocking read, e.g. if another thread happened
to read from the console and grabbed the character after you had called
`fdReady` but before calling `read`, then the `read` would block. It is
unlikely to happen, because someone would have to use raw `System.Win32`
operations to get separate access to the console or whatever, but it's
possible.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4144#comment:13>
GHC <http://www.haskell.org/ghc/>
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