Hello,
In GHC 6.12 there is no guarantee that a Handle is backed up by a file
descriptor. That said, check out the handleToFd defined on line 141
here:
http://patch-tag.com/r/mae/sendfile/snapshot/current/content/pretty/src/Network/Socket/SendFile/Internal.hs
A better type might be:
handleToFd :: Handle -> IO (Maybe Fd)
instead of raising an exception. Having a Handle not backed by a Fd is
not really an 'exceptional' condition after all.
- jeremy
On Feb 13, 2010, at 6:23 AM, Volker Wysk wrote:
Hello
I'd like to know how you get the file descriptor, which is
incapsulated in a handle. The libraries GHC.IO.Handle/
GHC.IO.Handle.FD only provide for the other direction.
The function haFD, which I've used before I've updated to the
current version of GHC (6.12), appears to be in use two times in the
libraries. But there isn't a definition anywhere.
Any help would be appreciated.
Cheers,
Volker
--
Volker Wysk <p...@volker-wysk.de>
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