From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <romain.bardou@inria.fr>
X-Original-To: caml-list@sympa.inria.fr
Delivered-To: caml-list@sympa.inria.fr
Received: from mail1-relais-roc.national.inria.fr (mail1-relais-roc.national.inria.fr [192.134.164.82])
	by sympa.inria.fr (Postfix) with ESMTPS id A134A7ED7A
	for <caml-list@sympa.inria.fr>; Fri, 14 Sep 2012 15:52:31 +0200 (CEST)
Received-SPF: None (mail1-smtp-roc.national.inria.fr: no sender
  authenticity information available from domain of
  romain.bardou@inria.fr) identity=pra; client-ip=178.32.228.5;
  receiver=mail1-smtp-roc.national.inria.fr;
  envelope-from="romain.bardou@inria.fr";
  x-sender="romain.bardou@inria.fr";
  x-conformance=sidf_compatible
Received-SPF: None (mail1-smtp-roc.national.inria.fr: no sender
  authenticity information available from domain of
  romain.bardou@inria.fr) identity=mailfrom;
  client-ip=178.32.228.5;
  receiver=mail1-smtp-roc.national.inria.fr;
  envelope-from="romain.bardou@inria.fr";
  x-sender="romain.bardou@inria.fr";
  x-conformance=sidf_compatible
Received-SPF: None (mail1-smtp-roc.national.inria.fr: no sender
  authenticity information available from domain of
  postmaster@mo5.mail-out.ovh.net) identity=helo;
  client-ip=178.32.228.5;
  receiver=mail1-smtp-roc.national.inria.fr;
  envelope-from="romain.bardou@inria.fr";
  x-sender="postmaster@mo5.mail-out.ovh.net";
  x-conformance=sidf_compatible
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: ArUBAPI1U1CyIOQFnGdsb2JhbABFhUC2PSIBAQEBAQgLCQkUJ4JfQD0WGAMCAQIBNwEgCAKICQQHmXGhPo5egx8DlWGBFIRujQc
X-IronPort-AV: E=Sophos;i="4.80,423,1344204000"; 
   d="scan'208";a="173212579"
Received: from mo5.mail-out.ovh.net ([178.32.228.5])
  by mail1-smtp-roc.national.inria.fr with ESMTP; 14 Sep 2012 15:52:31 +0200
Received: from mail30.ha.ovh.net (b6.ovh.net [213.186.33.56])
	by mo5.mail-out.ovh.net (Postfix) with SMTP id 60593FFB268
	for <caml-list@inria.fr>; Fri, 14 Sep 2012 15:58:09 +0200 (CEST)
Received: from b0.ovh.net (HELO queueout) (213.186.33.50)
	by b0.ovh.net with SMTP; 14 Sep 2012 15:52:30 +0200
Received: from unknown (HELO ?138.231.81.39?) (romain%bardou.fr@138.231.81.39)
  by ns0.ovh.net with SMTP; 14 Sep 2012 15:52:29 +0200
Message-ID: <505336D4.7010700@inria.fr>
Date: Fri, 14 Sep 2012 15:53:24 +0200
From: Romain Bardou <romain.bardou@inria.fr>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.6esrpre) Gecko/20120817 Icedove/10.0.6
MIME-Version: 1.0
To: caml-list@inria.fr
X-Ovh-Mailout: 178.32.228.5 (mo5.mail-out.ovh.net)
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Ovh-Tracer-Id: 3935301649689250336
X-Ovh-Remote: 138.231.81.39 ()
X-Ovh-Local: 213.186.33.20 (ns0.ovh.net)
X-OVH-SPAMSTATE: OK
X-OVH-SPAMSCORE: 0
X-OVH-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeehtddrieehucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecunecuhfhrohhmpeftohhmrghinhcuuegrrhguohhuuceorhhomhgrihhnrdgsrghrughouhesihhnrhhirgdrfhhrqeenucffohhmrghinhepihhnrhhirgdrfhhrnecujfgurhepkfffhfgfggfvufgtgfesthejrgdttdefud
X-Spam-Check: DONE|U 0.5/N
X-VR-SPAMSTATE: OK
X-VR-SPAMSCORE: 0
X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeehtddrieehucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecunecuhfhrohhmpeftohhmrghinhcuuegrrhguohhuuceorhhomhgrihhnrdgsrghrughouhesihhnrhhirgdrfhhrqeenucffohhmrghinhepihhnrhhirgdrfhhrnecujfgurhepkfffhfgfggfvufgtgfesthejrgdttdefud
X-Validation-by: romain.bardou@inria.fr
Subject: [Caml-list] Unix.connect for non-blocking sockets on Windows

Hello,

It seems, from the manual[1] that sockets of the Unix module are fully 
implemented on Windows. It also seems, from other googling, that 
non-blocking sockets are also implemented.

[1] http://caml.inria.fr/pub/docs/manual-ocaml/manual036.html

However, when I run the Unix.connect command on Windows, I get:

   Unix_error(EWOULDBLOCK, "connect", "")

I'm using OCaml 3.12.1 on Windows using the (older) installer from 
Jonathan, which uses mingw if I'm not mistaken. The code I use is more 
or less equivalent to:

   open Unix
   let address = "xxx.xxx.xxx.xxx" in (* some IP for IPv4 *)
   let port = 9543 in
   let fd = socket PF_INET SOCK_STREAM 0 in
   set_nonblock fd;
   connect fd (ADDR_INET (Unix.inet_addr_of_string address, port))

Is this a known issue?

Thanks,

-- 
Romain Bardou