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From:	=?iso-8859-1?Q?Boris_Sch=E4ling?= <boriss AT web DOT de>
To:	<cygwin AT sourceware DOT cygnus DOT com>
Subject:	RE: select() implementation question
Date:	Tue, 20 Jun 2000 16:31:41 +0200
Message-ID:	<LOBBKDBPKEGJJFKNFHKBIECKDEAA.boriss@web.de>
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> -----Original Message-----
> From: cygwin-owner AT sourceware DOT cygnus DOT com
> [mailto:cygwin-owner AT sourceware DOT cygnus DOT com]On Behalf Of Chris Faylor
> Sent: Tuesday, June 20, 2000 2:12 AM
> To: cygwin AT sourceware DOT cygnus DOT com
> Subject: Re: select() implementation question
>
> [...]
> Taking a quick glance at select.cc, I can see that cygwin select does
> open a dummy socket.  Possibly it is not closing something when it
> returns.  I really don't know.
Ah, a dummy socket. Well, then I think this is not a bug but a feature: I
guess this socket is used to jump back from select() whenever cygwin needs
to do so. There are probably some things to do that can't wait until a
socket is ready or the timer decreased to 0. I think this additional socket
is used to have some sort of control and to interrupt select() in a proper
way.

However, I downloaded the source code of select(). I'll have a look when I
have some time.

BTW: Is anybody working already on an implementation of getaddrinfo(),
gai_strerror() and freeaddrinfo()? Otherwise I will try. :-)

Boris


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