#7599: timeout does not behave as expected
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Reporter: ique | Owner:
Type: bug | Status: new
Priority: normal | Component: libraries/base
Version: 7.6.1 | Keywords: System.Timeout
timeout base-4.6
Os: MacOS X | Architecture: x86_64 (amd64)
Failure: Incorrect result at runtime | Blockedby:
Blocking: | Related:
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In trying to debug an error I found using the MongoDB package (it was
refusing connections) I found what I believe is a bug with System.Timeout.
When connecting with connectTo I immediately get a handle, wrapped in
timeout with a positive timeout, it instantly returns Nothing. When using
a negative timeout (wait indefinitely) it instantly returns the proper
Handle.
Below is a minimal test-case that I ran in ghci.
Import System.Timeout
Import Network
timeout (-1) $ connectTo "127.0.0.1" (PortNumber 27017)
-- This returns: Just {handle: <socket: 9>}
timeout 1000000 $ connectTo "127.0.0.1" (PortNumber 27017)
-- This returns Nothing
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7599>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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