John,
On Sat, Jun 13, 2009 at 7:01 PM, John Goerzen
where hscpid corresponds to a process that runs a Haskell function (hsffigMain :: a -> b -> c -> IO ()) defined within the same program, and gccpid runs an external program (gcc), and they are piped together. I am trying to avoid writing this mess using HSH.
OK, so I should have read more before starting to reply. But why are you writing to me about HSH if you're trying to *avoid* HSH? I'm confused.
Sorry, I should have written "by using"; Jason made the right correction. I thought that forkProcess-based shell commands existed in HSH thus I could avoid all these low-level manipulations with handles that are usually done in C programming.
Integraing hsffigMain into HSH directly will be difficult because it apparently already has its notions about where its input and output come from; the fact that its return type is IO () implies that its output
I'll try to write a wrapper for a forked process inside a Channel -> IO Channel typed function.
Your best bet is to make this a separate executable.
That's not what was intended, but now I see the situation more clearly. Thanks for the explanation. If I get any working code, I'll post a link on the list. -- Dimitry Golubovsky Anywhere on the Web