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Message-ID: <426DC858.27564CF8@dessent.net>
Date: Mon, 25 Apr 2005 21:49:28 -0700
From: Brian Dessent <brian AT dessent DOT net>
Organization: My own little world...
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To: cygwin AT cygwin DOT com
Subject: Re: system() fails on pristine Windows systems
References: <426D5CAB DOT 2070804 AT awcubed DOT com> <d4jrnk$hkk$1 AT sea DOT gmane DOT org> <426DB60B DOT 9090004 AT awcubed DOT com> <426DBB5D DOT 5660669D AT dessent DOT net> <426DBDEE DOT 5080905 AT awcubed DOT com>
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Archie Warnock wrote:

> > You could fork() and exec(), or just call one of the spawn() family of
> > functions.  This is all open source you know, you could look and see how
> > system() is implemented in winsup/cygwin/syscalls.cc.
> 
> I'll have to look and see there.  The fork()/exec()/spawn() functions
> don't quite do what I need, though.

system() is just a wrapper around spawnvp().  If spawn() isn't what you
want then neither is system().  spawn() does not necessarily replace the
current process (_P_OVERLAY), it can also start and optionally wait for
a subprocess (_P_WAIT, _P_NOWAIT, _P_DETACH).

Brian

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