From owner-freebsd-threads@FreeBSD.ORG  Mon Feb  9 23:33:21 2004
Return-Path: <owner-freebsd-threads@FreeBSD.ORG>
Delivered-To: freebsd-threads@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id B551216A4CE; Mon,  9 Feb 2004 23:33:21 -0800 (PST)
Received: from rms04.rommon.net (rms04.rommon.net [212.54.2.140])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 2BD8043D1F; Mon,  9 Feb 2004 23:33:21 -0800 (PST)
	(envelope-from pete@he.iki.fi)
Received: from he.iki.fi (h81.vuokselantie10.fi [193.64.42.129])
	by rms04.rommon.net (8.12.9p1/8.12.9) with ESMTP id i1A7XIcM063255;
	Tue, 10 Feb 2004 09:33:18 +0200 (EET)
	(envelope-from pete@he.iki.fi)
Message-ID: <40288901.7030306@he.iki.fi>
Date: Tue, 10 Feb 2004 09:32:17 +0200
From: Petri Helenius <pete@he.iki.fi>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
	rv:1.6) Gecko/20040113
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: David Xu <davidxu@freebsd.org>
References: <200402100531.i1A5VZHp078881@freefall.freebsd.org>
	<40287A33.9050008@freebsd.org>
In-Reply-To: <40287A33.9050008@freebsd.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
cc: Daniel Eischen <deischen@freebsd.org>
cc: tege@swox.se
cc: freebsd-threads@freebsd.org
Subject: Re: kern/33951: pthread_cancel is ignored
X-BeenThere: freebsd-threads@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Threading on FreeBSD <freebsd-threads.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-threads>,
	<mailto:freebsd-threads-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-threads>
List-Post: <mailto:freebsd-threads@freebsd.org>
List-Help: <mailto:freebsd-threads-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-threads>,
	<mailto:freebsd-threads-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 10 Feb 2004 07:33:21 -0000

David Xu wrote:

>>
> I had enabled asynchornous cancelling for M:N thread in libkse but not 
> 1:1 thread,
> simplest way to support asynchronous cancelling for 1:1 is to use 
> signal, but it will
> occupy a signal like Linux's SIGUSR1, another way is to use upcall,  
> but  it is
> slight complicated.
>
One of the features I dislike with linuxthreads is that it eats one of 
the two USR signals. It complicates things like debugging because then 
you have to read files instead of just using one signal to set debug=0 
and the other to debug++.

Pete