[Caml-list] nonblock socket in Windows

[Caml-list] nonblock socket in Windows

[Vu Ngoc San]

Hello

I want to have non-blocking sockets for a UDP client/server.  I use
the Unix.set_nonblock which works fine in Linux, but the manual tells
me that in Windows (Win32):

"set_nonblock, clear_nonblock	implemented as dummy functions; use threads 
instead of non-blocking I/O"

I would like to avoid threads, and on the other hand there is the
ioctlsocket function in Windows which seems to do it. So why isn't
this implemented in ocaml ?

http://msdn.microsoft.com/en-us/library/ms738573

Re: [Caml-list] nonblock socket in Windows

[Gerd Stolpmann]

Am Mittwoch, den 31.08.2011, 12:55 +0200 schrieb Vu Ngoc San:
> Hello
> 
> I want to have non-blocking sockets for a UDP client/server.  I use
> the Unix.set_nonblock which works fine in Linux, but the manual tells
> me that in Windows (Win32):
> 
> "set_nonblock, clear_nonblock	implemented as dummy functions; use threads 
> instead of non-blocking I/O"

This is only partially correct. Non-blocking sockets are implemented,
and these functions work in Ocaml. For other types of file descriptors,
Windows doesn't provide non-blocking access.

Gerd

> 
> I would like to avoid threads, and on the other hand there is the
> ioctlsocket function in Windows which seems to do it. So why isn't
> this implemented in ocaml ?
> 
> http://msdn.microsoft.com/en-us/library/ms738573
> 
> 

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Re: [Caml-list] nonblock socket in Windows

[Vu Ngoc San]

that's good news for me, thanks ! I'm going to try.

Maybe the ocaml manual could be updated on this point.

San


Le mercredi 31 août 2011 13:05:00, Gerd Stolpmann a écrit :
> Am Mittwoch, den 31.08.2011, 12:55 +0200 schrieb Vu Ngoc San:
> > Hello
> > 
> > I want to have non-blocking sockets for a UDP client/server.  I use
> > the Unix.set_nonblock which works fine in Linux, but the manual tells
> > me that in Windows (Win32):
> > 
> > "set_nonblock, clear_nonblock	implemented as dummy functions; use 
threads
> > instead of non-blocking I/O"
> 
> This is only partially correct. Non-blocking sockets are implemented,
> and these functions work in Ocaml. For other types of file descriptors,
> Windows doesn't provide non-blocking access.
> 
> Gerd
> 
> > I would like to avoid threads, and on the other hand there is the
> > ioctlsocket function in Windows which seems to do it. So why isn't
> > this implemented in ocaml ?
> > 
> > http://msdn.microsoft.com/en-us/library/ms738573