From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <frysk-return-1387-listarch-frysk=sources.redhat.com@sourceware.org>
Received: (qmail 10975 invoked by alias); 13 Feb 2007 14:22:01 -0000
Received: (qmail 10968 invoked by uid 22791); 13 Feb 2007 14:22:00 -0000
X-Spam-Status: No, hits=-2.6 required=5.0 	tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS
X-Spam-Check-By: sourceware.org
Received: from mx1.redhat.com (HELO mx1.redhat.com) (66.187.233.31)     by sourceware.org (qpsmtpd/0.31) with ESMTP; Tue, 13 Feb 2007 14:21:50 +0000
Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) 	by mx1.redhat.com (8.13.1/8.13.1) with ESMTP id l1DELkAi006868 	for <frysk@sourceware.org>; Tue, 13 Feb 2007 09:21:46 -0500
Received: from pobox.corp.redhat.com (pobox.corp.redhat.com [10.11.255.20]) 	by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l1DELjx4016443 	for <frysk@sourceware.org>; Tue, 13 Feb 2007 09:21:45 -0500
Received: from [127.0.0.1] (sebastian-int.corp.redhat.com [172.16.52.221]) 	by pobox.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l1DELimZ012355 	for <frysk@sourceware.org>; Tue, 13 Feb 2007 09:21:44 -0500
Message-ID: <45D1C970.1020501@redhat.com>
Date: Tue, 13 Feb 2007 14:22:00 -0000
From: Andrew Cagney <cagney@redhat.com>
User-Agent: Thunderbird 1.5.0.9 (X11/20070102)
MIME-Version: 1.0
To: frysk@sourceware.org
Subject: Creating test children and daemons
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-IsSubscribed: yes
Mailing-List: contact frysk-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <frysk.sourceware.org>
List-Subscribe: <mailto:frysk-subscribe@sourceware.org>
List-Post: <mailto:frysk@sourceware.org>
List-Help: <mailto:frysk-help@sourceware.org>, <http://sourceware.org/lists.html#faqs>
Sender: frysk-owner@sourceware.org
X-SW-Source: 2007-q1/txt/msg00117.txt.bz2

FYI,

I've committed new code for creating test child (direct decendant of 
TestRunner) and daemon (descendant of process 1, a.k.a. init) 
processes.  The processes can either run code linked in code, or a 
separate process (started via exec).  For instance, and off the top of 
my head, to create a daemon that just exits:

   frysk.sys.ProcessIdentifier pid =
    new frysk.sys.Daemon (new frysk.sys.Execute ()
       {
          public void execute ()
          {
             // This as the main and only thread of the daemon.
             // Beware, there is no java runtime so
             // you really want to implement this as a native
             // method in either C or assembler.
          }
       });

Redirection to a pipe pair is also possible, instead of 
frysk.sys.Daemon, call frysk.sys.DaemonPipePair.  See 
frysk.sys.TestPipePair for more examples.

Andrew