Hi, have a look at http://www.galois.com/~sof/subby.zip , it contains a basic module, RunProc, which lets you kick off a Win32 sub-process and communicate with it via Handles. The .zip file also contains an example demonstrating how to use it.
Let me know if this addresses your problem. --sigbjorn ----- Original Message ----- From: "Jan de Wit" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, November 28, 2001 06:38 Subject: Communicating with other programs (Win32) > Hi all, > > In my free time, I'm writing a Go program in Haskell. Main platform is > GHC and GHCi under Win32. It is coming along nicely: it has a GUI and the > moves > it comes up with are starting to make some sense. For testing (and maybe > later > training :) purposes I want it to be able to play against GnuGo (the > strongest > Open Source Go program) on its own. > > Currently, to get GnuGo to think up a move, I use something like (SGF is > the > standard way of outputting Go games): > > | do writeFile "in.sgf" (showAsSGF game) > | let cmd = "echo quit > gnugo --quiet --infile in.sgf --color " ++ > | (show computerColor) ++ > | " --mode ascii > out.txt" > | system cmd > | result <- readFile "out.txt" > | return (parseResultMove result) > > I think this both ugly and inefficient: for every move a new instance of > GnuGo gets started and an SGF file is output! Instead, I want > to start GnuGo only once per game and communicate with it like a human > player > would, by typing commands at it; or by using the Go Text Protocol which is > specifically designed for computer-computer play. > > Does anybody here know a way - under Win32 - to start a process in the > background and communicate with it via its stdin/stdout? I've poked around > a bit in the Win32 library source, looking for an FFI interface to > CreateProcess (the API function which does what I want) but found nothing. > The Posix library looks like it should be up to the job, but > unfortunately that isn't supported under Win32... (I'm not using Cygwin) > > Any help would be appreciated! > > Cheers, > Jan de Wit > > > _______________________________________________ > Glasgow-haskell-users mailing list > [EMAIL PROTECTED] > http://www.haskell.org/mailman/listinfo/glasgow-haskell-users _______________________________________________ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users