At 12:22 PM 2/21/2003 -0800, Jim Kleckner wrote:Could someone explain how "Listen to actor" should be used for debugging? I would expect it to trace the events into and out of a composite entity but it brings up an empty window for me and it stays that way.
Actors can optionally issue debug messages, typically using code like the following:
if (_debugging) { _debug( message here ); }
However, most actors don't, so listening to a random actor isn't that useful...
It would be better if, at a minimum, the base classes used code like this to report invocation of the key action methods (prefire(), fire(), postfire()).
I have modified the base classes so that they now do this reporting. However, most actors need two small changes:
1) The fire() method should call super.fire(), if it doesn't already (it does for some).
2) The prefire() method should do something like this:
public boolean prefire() throws IllegalActionException {
if (!input.hasToken(0, _numberOfInputs)) {
if (_debugging) {
_debug("Called prefire(), which returns false.");
}
return false;
} else {
return super.prefire();
}
}This was modified from the following:
public boolean prefire() throws IllegalActionException {
if (!input.hasToken(0, _numberOfInputs)) return false;
else return super.prefire();
}I have made these changes for all the actors in domains/sdf/lib. Christopher: Do you think you could make the changes in actor/lib and domains/de/lib?
Not a high priority, but it would be nice to do at some point...
Edward
------------ Edward A. Lee, Professor 518 Cory Hall, UC Berkeley, Berkeley, CA 94720 phone: 510-642-0455, fax: 510-642-2739 [EMAIL PROTECTED], http://ptolemy.eecs.berkeley.edu/~eal
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