subprocess i/o interaction with shell (bash&cmd): shells compete for input with user program!
Sam Steingold
sds@gnu.org
Tue Jul 22 23:17:00 GMT 2003
> * In message <20030722172316.GC17916@redhat.com>
> * On the subject of "Re: subprocess i/o interaction with shell (bash&cmd): shells compete for input with user program!"
> * Sent on Tue, 22 Jul 2003 13:23:16 -0400
> * Honorable Christopher Faylor <cgf-idd@cygwin.com> writes:
>
> On Tue, Jul 22, 2003 at 12:23:18PM -0400, Sam Steingold wrote:
> >> Under cygwin you'd accomplish this by having the parent process use
> >> one of the "exec" calls.
> >
> >nope. doesn't work either.
> >I get the same "input competition" when I use exec().
>
> If you are using fork/exec, then sure, you'll get that.
I am not using fork().
just plain exec().
> If you use just exec, then cygwin should do the right thing.
it does not.
I use the simple
execl("runtime.exe",NULL);
and I get the "input competition".
--
Sam Steingold (http://www.podval.org/~sds) running w2k
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