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Date: Thu, 26 May 2005 21:19:44 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: connect()/cygwin_select() hangs in >=1.5.15
Message-ID: <20050526191944.GX22615@calimero.vinschen.de>
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On May 26 12:08, Sunil wrote:
> this issue is not fixed in any later snapshots, not
> even the just released 1.5.17.
> 
> can someone with the knowledge of cygwin socket code
> comment on it please?
> 
> Thanks,
> Sunil
> 
> --- "Gerrit P. Haase" <gerrit AT familiehaase DOT de> wrote:
> > Sunil wrote:
> > 
> > > This piece of code hangs with cygwin1.dll >=1.5.15
> > > during connect(), strace is attached. The same
> > code
> > > runs fine with cygwin1.dll version 1.5.13.
> > > 
> > > --------------------------------
> > >  fd = socket (proto->family, 1,
> > >        proto->stream_proto_num);
> > > 
> > >  if (fd < 0) {
> > >   ;
> > >   goto out;
> > >  }
> > > 
> > >  if (options & LINK_CONNECTION_NONBLOCKING) {
> > > # 553 "linc-connection.c"
> > >   if (fcntl (fd, 4, 0x4000) < 0)
> > >    goto out;
> > > 
> > >  }
> > > 
> > >  if (fcntl (fd, 2, 1) < 0)
> > >   goto out;
> > > 
> > >  { long int __result; do __result = (long int)
> > > (connect (fd, saddr, saddr_len)); while (__result
> > ==
> > > -1L && (*__errno()) == 4); rv = __result; };
> > > # 596 "linc-connection.c"
> > >  if (rv && (*__errno()) != 119)
> > >   goto out;
> > > 
> > > ---------------------------

Can you please create a simple(!), short(!), stand-alone(!) testcase which
builds OOTB(!) and uses the symbolic constants rather than numeric constants?
Numbers as 4, 0x4000, 2, 1 in the context of fcntl don't make any sense at
all.  Neither does a socket(2) call with variables set to some unknown value.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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