From: Christoph Bauer <christoph.bauer@lms-gmbh.de>
To: Jonathan Roewen <jonathan.roewen@gmail.com>,
Nathaniel Gray <n8gray@gmail.com>
Cc: Caml Mailing List <caml-list@yquem.inria.fr>
Subject: AW: [Caml-list] Re: Select on channels (again)
Date: Wed, 23 Aug 2006 09:02:44 +0200 [thread overview]
Message-ID: <26EB47FDD566A7469FC862DAF373792F018CF5D0@kaiserslautern1.lmsintl.com> (raw)
> Why can't you just use the unix file opening functions since
> you're using unix select? And if you need the ocaml in/out
> channels, convert the unix file descriptors to ocaml ones
> instead of the other way around. Seems simple enough to me.
I did this, but on windows with two programs communicating over
a pipe this isn't enough. select on windows and on a pipe doesn't
work. Therefore I wrote a stub for PeekNamedPipe():
#include <caml/unixsupport.h>
#include <windows.h>
CAMLprim value peeknamedpipe_stub( value fd ) {
CAMLparam1( fd );
DWORD available;
if( !PeekNamedPipe( Handle_val( fd ), NULL, 0, NULL, &available, NULL ) )
{
failwith( "peeknamedpipe failed");
}
CAMLreturn( Val_int( available ) );
}
I use select on Unix and peednamedpipe on windows.
Communication over sockets could be another solution, because then select
should work on windows, too.
Christoph Bauer
next reply other threads:[~2006-08-23 7:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-23 7:02 Christoph Bauer [this message]
2006-08-23 7:44 ` Robert Roessler
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