stdin redirection help...

2005-08-23 Thread John Coppens
Hello all.

I'm trying to run SPICE from inside a GTK program. I've redirected stdin,
stdout and stderr via pipes. The problem I have is with stdin:

How can I tell spice to stop asking for input till I want to send some
more? I read up some about directing the input to /dev/null, which would
provide an EOF situation. I tried to assign this file to the pipe,
without success:

  nll = open(/dev/null, O_RDONLY);
  dup2(nll, std_in[1]);

where std_in[1] is the write port of the pipe.

I always get 100% cpu occupation... Can someone indicate what to do here?

TIA,
John
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Re: stdin redirection help...

2005-08-23 Thread Wallace Owen
It's because /dev/null will only feed you EOF when you try to read from
it.

On Tue, 2005-08-23 at 17:07 -0300, John Coppens wrote:
 Hello all.
 
 I'm trying to run SPICE from inside a GTK program. I've redirected stdin,
 stdout and stderr via pipes. The problem I have is with stdin:
 
 How can I tell spice to stop asking for input till I want to send some
 more? I read up some about directing the input to /dev/null, which would
 provide an EOF situation. I tried to assign this file to the pipe,
 without success:
 
   nll = open(/dev/null, O_RDONLY);
   dup2(nll, std_in[1]);
 
 where std_in[1] is the write port of the pipe.
 
 I always get 100% cpu occupation... Can someone indicate what to do here?
 
 TIA,
 John
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 gtk-app-devel-list@gnome.org
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