From owner-freebsd-current  Thu Feb 27  8:59:33 2003
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Date: Thu, 27 Feb 2003 11:46:51 -0500
From: Mike Barcroft <mike@FreeBSD.org>
To: John Polstra <jdp@polstra.com>
Cc: current@freebsd.org, rodrigc@attbi.com
Subject: Re: OpenSSL question for id_function()
Message-ID: <20030227114651.A93968@espresso.bsdmike.org>
References: <20030225155724.GB9400@attbi.com> <200302271640.h1RGeMx2029701@vashon.polstra.com>
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In-Reply-To: <200302271640.h1RGeMx2029701@vashon.polstra.com>; from jdp@polstra.com on Thu, Feb 27, 2003 at 08:40:22AM -0800
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John Polstra <jdp@polstra.com> writes:
> In article <20030225155724.GB9400@attbi.com>,
> Craig Rodrigues  <rodrigc@attbi.com> wrote:
> > 
> > pthread_self() returns something of type pthread_t.
> > This code works under Linux, because pthread_t is mapped to an integer value.
> > 
> > However, on FreeBSD, pthread_t is a pointer to struct pthread, so this
> > code does not compile:
> 
> FreeBSD violates POSIX in this respect.  The 1003.1 standard
> (section 2.5) requires pthread_t to be an arithmetic type.  We are
> non-compliant in the same way for almost all of the primary
> thread-related types:
> 
>     pthread_attr_t
>     pthread_mutex_t
>     pthread_mutexattr_t
>     pthread_cond_t
>     pthread_condattr_t
>     pthread_once_t
> 
> We got it right for pthread_key_t, though. :-)

It looks like this requirement was removed in POSIX.1-2001.  A problem
with our implementation is that struct pthread* is in the
implementation namespace, so we can't define these types in
<sys/types.h> as required.

Best regards,
Mike Barcroft

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