Delivered-To:	listarch-cygwin AT sourceware DOT cygnus DOT com
Message-ID:	<36B5871E.1D1E3C38@uni-duesseldorf.de>
Date:	Mon, 01 Feb 1999 11:51:10 +0100
From:	Stipe Tolj <tolj AT uni-duesseldorf DOT de>
Organization:	Department of Economical Computer Science, University of Cologne,
	Germany
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MIME-Version:	1.0
To:	Vasiliy <waso AT nstu DOT ru>
CC:	Alex <alexl AT i-france DOT com>, gnu-win32 mailing list <gnu-win32 AT cygnus DOT com>
Subject:	Re: multithread programming
References:	<36B2ED48 DOT 3A763ADF AT i-france DOT com> <36B473CD DOT 616A8732 AT uni-duesseldorf DOT de> <36B570CC DOT FF960F57 AT nstu DOT ru>
Sender:	owner-gnu-win32 AT cygnus DOT com

> >
> > unfortunatly Cygwin b19 (and b20) are _not_ multithread safe. Therefore the
> > posix thread pthread package from MIT won't work.
>
> Does it mean that it is impossible to port multithreaded application from Unix
> to Win32    ???

of course it _is_ possible if you consider to write pthread wrappers that take out
the multithreading ability of the application.

As you may know, Win9x shouldn't be considererd thread-safe at all, therefore how
could Cygwin fix that if it is a sub-system of the os. I just wanted to say, that
you can't compare Linux or Solaris (or what real UNIX ever) to Cygwin for
multithreading abilities.

I tried to port the MySQL database engine which uses the MIT's pthreads. And I got
stuck into deep trouble with the need of that pthread functions.

Maybe an upcoming release of Cygwin will be supporting the pthread packages in
some way.

Regards,
Stipe

--
Stipe Tolj <tolj AT uni-duesseldorf DOT de>

Cygwin Porting Project -- "We build UNIX on top of Windows"
http://www.student.uni-koeln.de/cygwin/

Department of Economical Computer Science
University of Cologne, Germany




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