From owner-freebsd-current  Fri Aug  7 07:07:11 1998
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Received: (from majordom@localhost)
          by hub.freebsd.org (8.8.8/8.8.8) id HAA09182
          for freebsd-current-outgoing; Fri, 7 Aug 1998 07:07:11 -0700 (PDT)
          (envelope-from owner-freebsd-current@FreeBSD.ORG)
Received: from coleridge.kublai.com (coleridge.kublai.com [207.96.1.116])
          by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id HAA09171
          for <freebsd-current@FreeBSD.ORG>; Fri, 7 Aug 1998 07:07:06 -0700 (PDT)
          (envelope-from shmit@coleridge.kublai.com)
Received: (from shmit@localhost)
	by coleridge.kublai.com (8.8.8/8.8.8) id KAA20626;
	Fri, 7 Aug 1998 10:06:45 -0400 (EDT)
	(envelope-from shmit)
Message-ID: <19980807100643.33286@kublai.com>
Date: Fri, 7 Aug 1998 10:06:43 -0400
From: Brian Cully <shmit@kublai.com>
To: Daniel Eischen <eischen@vigrid.com>
Cc: freebsd-current@FreeBSD.ORG
Subject: Re: Pthreads woes revisited.
Reply-To: shmit@kublai.com
Mail-Followup-To: Daniel Eischen <eischen@vigrid.com>,
	freebsd-current@FreeBSD.ORG
References: <199808062113.RAA18177@pcnet1.pcnet.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Mailer: Mutt 0.89i
In-Reply-To: <199808062113.RAA18177@pcnet1.pcnet.com>; from Daniel Eischen on Thu, Aug 06, 1998 at 05:13:02PM -0400
X-Sender: If your mailer pays attention to this, it's broken.
X-PGP-Info: finger shmit@kublai.com for my public key.
Sender: owner-freebsd-current@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

On Thu, Aug 06, 1998 at 05:13:02PM -0400, Daniel Eischen wrote:
> You're not adding the pthread_yield() call that I added after
> the pthread_cond_signal().  Your program is bogus because there
> is no guarantee that the main thread will release the CPU in
> order for the other task to run.  You need to perform some
> sort of blocking operation after the pthread_cond_signal.  I
> chose to use pthread_yield, although sleep would work just as
> well.

Do'h! I missed that. That did make the sample program work, so
it looks like the error was mine all along, sorry for troubling
everybody.

-bjc

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message