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Date: Thu, 15 Sep 2005 17:33:58 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: problem with getppid()
Message-ID: <20050915153358.GW5555@calimero.vinschen.de>
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References: <Pine DOT LNX DOT 4 DOT 63 DOT 0509150809440 DOT 23407 AT zeno1 DOT math DOT washington DOT edu>
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On Sep 15 08:14, Eduardo Chappa wrote:
> gdb ./test
> (gdb) run
> 
> The output is "My parent is bad". I believe this is a bug in Cygwin's 
> implementation of getppid().

No, it's not a bug.  GDB starts the inferior process using the standard
Windows mechanisms since it should be useful also for native debugging.
When the inferior process is not started by Cygwin's own fork/exec
process, the child process doesn't know anything about its parent process,
at least not on Windows 9x.  There's a way to retrieve the native parent
PID by using NtQueryInformationProcess on NT, but it doesn't seem very
useful to get this information.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat, Inc.

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