#3071: Network.Socket.recv throws IOException on reading 0 bytes
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Reporter: tibbe | Owner:
Type: bug | Status: new
Priority: normal | Component: libraries/network
Version: 6.10.1 | Severity: normal
Keywords: | Testcase:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
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My man pages has the following to say about the return value of `recv`:
These calls return the number of bytes received, or -1 if an error
occurred.
For TCP sockets, the return value 0 means the peer has closed its half
side of the connection.
This means that it's absolutely fine to read 0 bytes when using e.g. UDP
socket.
However, the `Network.Socket.recv` function always throws an exception
upon reading 0 bytes regardless of the protocol family.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3071>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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