Examples of ptolemy.actor.process.TerminateProcessException

ptolemy.actor.process.TerminateProcessException
This exception is thrown to terminate a process. This is only a notification exception that a ProcessDirector uses to terminate all the processes gracefully. It is not an exception that indicates an error in the code or model.
In the process domains (PN and CSP for example), a simulation is terminated only when a deadlock is detected. During a deadlock, the threads corresponding to actors are normally blocked on a method call to the receiver. This exception is normally thrown from these methods, so that the threads can return from the call and terminate themselves.
This class is a standalone class and not derived from the Ptolemy Runtime exceptions as those exceptions indicate an error in the model, while this exception is used for passing of information to the threads. @author Neil Smyth, Mudit Goel @version $Id: TerminateProcessException.java,v 1.32 2006/10/02 04:06:15 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Green (mudit) @Pt.AcceptedRating Yellow (mudit)

        try {
            return (CSPDirector) _parentActor.getExecutiveDirector();
        } catch (Exception ex) {
            // If a thread has a reference to a receiver with no director it
            // is an error so terminate the process.
            throw new TerminateProcessException("CSPReceiver: trying to "
                    + " rendezvous with a receiver with no "
                    + "director => terminate.");
        }
    }

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                if (successfulBranch == -1) {
                    // all guards false so exit CDO
                    continueCDO = false;
                } else if (!flag) {
                    throw new TerminateProcessException(getName() + ": "
                            + "branch id returned during execution of CDO.");
                }


                count++;
            }
        } catch (IllegalActionException ex) {
            throw new TerminateProcessException(getName() + ": Error: "
                    + "could not create ConditionalReceive branch");
        }


        return;
    }

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                    // Notify any receivers that might be waiting for
                    // the rendevous to complete.
                    director.notifyAll();
                }
            } catch (InterruptedException ex) {
                throw new TerminateProcessException(
                        "CSPReceiver.get() interrupted.");
            } finally {
                if (_getWaiting != null) {
                    // If the _getWaiting flag is still true, then this
                    // process was blocked, woken up and terminated.

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                    // the rendezvous to complete.
                    director.notifyAll();
                    return;
                }
            } catch (InterruptedException ex) {
                throw new TerminateProcessException(
                        "CSPReceiver.put() interrupted.");
            } finally {
                if (_putWaiting != null) {
                    // If the put is still marked as waiting, then
                    // process was blocked, awakened and terminated.

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                return (CSPDirector) container.getExecutiveDirector();
            }
        } catch (NullPointerException ex) {
            // If a thread has a reference to a receiver with no director it
            // is an error so terminate the process.
            throw new TerminateProcessException("CSPReceiver: trying to "
                    + " rendezvous with a receiver with no "
                    + "director => terminate.");
        }
    }

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     *   running i.e. it was not allowed to run to completion.
     */
    private void _checkFlags() throws TerminateProcessException {
        synchronized (_getDirector()) {
            if (_modelFinished) {
                throw new TerminateProcessException(getContainer().getName()
                        + ": terminated.");
            }
        }
    }

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                    _terminate = true;
                }
            }


            if (_terminate) {
                throw new TerminateProcessException("");
            }
        }


        return result;
    }

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                    _terminate = true;
                }
            }


            if (_terminate) {
                throw new TerminateProcessException("Process terminated.");
            }
        }
    }

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            // Sleep so that graphical displays involving this
            // applet will pause after colors are changed.
            try {
                Thread.sleep(300);
            } catch (InterruptedException e) {
                throw new TerminateProcessException(this, "Terminated");
            }


            if ((br >= 0) && (br < _numInChannels)) {
                token = (StringToken) branches[br].getToken();
                _strValue = token.toString();

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        // State 2
        try {
            Thread.sleep(300);
        } catch (InterruptedException e) {
            throw new TerminateProcessException(this, "Terminated");
        }


        BooleanToken bToken = (BooleanToken) requestInput.get(0);


        if (bToken.booleanValue()) {
            // State 3
            _debug(new ExecEvent(this, ExecEvent.ACCESSING));


            try {
                Thread.sleep(300);
            } catch (InterruptedException e) {
                throw new TerminateProcessException(this, "Terminated");
            }


            if (read) {
                memoryInput.get(0);
            } else {
                StringToken strToken = new StringToken(getName());
                memoryOutput.broadcast(strToken);
            }


            return;
        } else {
            // State 4
            _debug(new ExecEvent(this, ExecEvent.BLOCKED));


            try {
                Thread.sleep(300);
            } catch (InterruptedException e) {
                throw new TerminateProcessException(this, "Terminated");
            }
        }


        accessMemory(read);
    }

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