Exec actor (was Re: [kepler-dev] 2d display widget?)

[Christopher Brooks]

The Java exec() is rather crude.

My understanding is that we want to read from Process as we go along
because there are limits to the size of the buffer.  I vaguely
remember there also being problems if we did not start reading
from the Process rather promptly.

The Exec actor I hacked up is documented at
http://ptolemy.eecs.berkeley.edu/ptolemyII/ptII4.0/ptII4.0/doc/codeDoc/ptolemy/actor/lib/Exec.html
The documentation has a typo in one of the resource URLs, the correct
URL is
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html
another URL is
http://mindprod.com/jgloss/exec.html


-Christopher

--------

    On Wed, 28 Jul 2004, Dan Higgins wrote:
    
    > dir which uses an actor called 'InteractiveExec'. This was a rought
    
    Why does the Exec / InteractiveExec actor spawn off threads to 'gobble'
    input from the underlying process's stdout?
    
    Would it be possible to just let the operating system buffer the standard
    i/o streams, and then read all available data from stdout in the fire()
    method?
    
    Tobin
    
    ---------------------------------------------------------------------------
   -
    Posted to the ptolemy-hackers mailing list.  Please send administrative
    mail for this list to: ptolemy-hackers-request at ptolemy.eecs.berkeley.edu
--------