* access to it. It is set automatically during the build of the object.
*/
public long bind;
-
+ /**
+ * Indicates if the process is started
+ */
+ boolean started;
/**
* Even if this attribute is public you must never access to it.
* It is used to compute the id of an MSG process.
*/
public static long nextProcessId = 0;
-
+
/**
* Even if this attribute is public you must never access to it.
* It is compute automatically during the creation of the object.
* The native functions use this identifier to synchronize the process.
*/
public long id;
+
+ /**
+ * Start time of the process
+ */
+ public double startTime = 0;
+ /**
+ * Kill time of the process
+ */
+ public double killTime = -1;
public Hashtable<String,String> properties;
/** The arguments of the method function of the process. */
public Vector<String> args;
- /* process synchronization tools */
- private boolean nativeStop = false;
-
/**
* Default constructor (used in ApplicationHandler to initialize it)
*/
* @param host The host of the process to create.
* @param name The name of the process.
* @param args The arguments of main method of the process.
+ */
+ public Process(Host host, String name, String[]args) {
+ this();
+ this.host = host;
+ if (name == null)
+ throw new NullPointerException("Process name cannot be NULL");
+ this.name = name;
+
+ this.args = new Vector<String>();
+ if (null != args)
+ this.args.addAll(Arrays.asList(args));
+
+ this.properties = new Hashtable<String,String>();
+ }
+ /**
+ * Constructs a new process from a host and his name, the arguments of here method function are
+ * specified by the parameter args.
+ *
+ * @param host The host of the process to create.
+ * @param name The name of the process.
+ * @param args The arguments of main method of the process.
+ * @param startTime Start time of the process
+ * @param killTime Kill time of the process
*
*/
- public Process(Host host, String name, String[]args) {
- /* This is the constructor called by all others */
+ public Process(Host host, String name, String[]args, double startTime, double killTime) {
this();
this.host = host;
if (name == null)
this.properties = new Hashtable<String,String>();
+ this.startTime = startTime;
+ this.killTime = killTime;
}
/**
* The natively implemented method to create an MSG process.
*
*/
public static native int killAll(int resetPID);
- /**
- * This method sets a flag to indicate that this thread must be killed. End user must use static method kill
- *
- * @return
- *
- */
- public void nativeStop() {
- nativeStop = true;
- }
- /**
- * getter for the flag that indicates that this thread must be killed
- *
- * @return
- *
- */
- public boolean getNativeStop() {
- return nativeStop;
- }
/**
* This method kill a process.
- * @param process the process to be killed.
*
*/
- public void kill() {
- nativeStop();
- Msg.info("Process " + msgName() + " will be killed.");
- }
-
+ public native void kill();
/**
* Suspends the process by suspending the task on which it was
* waiting for the completion.
- *
*/
- public native void pause();
+ public native void suspend();
+ /**
+ * Suspends the process by suspending the task on which it was
+ * waiting for the completion.
+ * DEPRECATED: use suspend instead.
+ */
+ @Deprecated
+ public void pause() {
+ suspend();
+ }
/**
* Resumes a suspended process by resuming the task on which it was
* waiting for the completion.
- *
- *
+ * DEPRECATED: use resume instead.
*/
- public native void restart();
+ @Deprecated
+ public void restart() {
+ resume();
+ }
+ /**
+ * Resumes a suspended process by resuming the task on which it was
+ * waiting for the completion.
+ */
+ public native void resume();
/**
* Tests if a process is suspended.
*
public int getPPID() {
return ppid;
}
+ /**
+ * Set the kill time of the process
+ * @param killTime the time when the process is killed
+ */
+ public native void setKillTime(double killTime);
+
/**
* This static method returns the currently running process.
*
*
*/
public static native Process currentProcess();
- /**
- * Kills a MSG process
- * @param process Valid java process to kill
- */
- final static native void kill(Process process);
/**
* Migrates a process to another host.
*
* @param host The host where to migrate the process.
*
*/
- public native static void migrate(Process process, Host host);
+ public native void migrate(Host host);
/**
* Makes the current process sleep until millis millisecondes have elapsed.
* You should note that unlike "waitFor" which takes seconds, this method takes milliseconds.
* FIXME: Not optimal, maybe we should have two native functions.
* @param millis the length of time to sleep in milliseconds.
*/
- public static void sleep(long millis) {
+ public static void sleep(long millis) throws HostFailureException {
sleep(millis,0);
}
/**
* @param millis the length of time to sleep in milliseconds.
* @param nanos additionnal nanoseconds to sleep.
*/
- public native static void sleep(long millis, int nanos);
+ public native static void sleep(long millis, int nanos) throws HostFailureException;
/**
* Makes the current process sleep until time seconds have elapsed.
* @param seconds The time the current process must sleep.
*/
- public native void waitFor(double seconds);
+ public native void waitFor(double seconds) throws HostFailureException;
/**
*
*/
Msg.info("[" + this.msgName() + "/" + this.getHost().getName() +
"] args[" + i + "]=" + (String) (this.args.get(i)));
}
- /**
- * Exit the process
- */
- public native void exit();
/**
* This method actually creates and run the process.
+ * It is a noop if the process is already launched.
* @throws HostNotFoundException
*/
- public void start() throws HostNotFoundException {
- create(host.getName());
+ public final void start() throws HostNotFoundException {
+ if (!started) {
+ started = true;
+ create(host.getName());
+ }
}
/**
}
this.main(args);
- exit();
} catch(MsgException e) {
e.printStackTrace();
Msg.info("Unexpected behavior. Stopping now");
System.exit(1);
}
- catch(ProcessKilled pk) {
- if (nativeStop) {
- try {
- exit();
- } catch (ProcessKilled pk2) {
- /* Ignore that other exception that *will* occur all the time.
- * This is because the C mechanic gives the control to the now-killed process
- * so that it does some garbage collecting on its own. When it does so here,
- * the Java thread checks when starting if it's supposed to be killed (to inform
- * the C world). To avoid the infinite loop or anything similar, we ignore that
- * exception now. This should be ok since we ignore only a very specific exception
- * class and not a generic (such as any RuntimeException).
- */
- //System.err.println(currentThread().getName()+": I ignore that other exception");
- }
- //Msg.info(" Process " + ((Process) Thread.currentThread()).msgName() + " has been killed.");
- }
- else {
- pk.printStackTrace();
- Msg.info("Unexpected behavior. Stopping now");
- System.exit(1);
- }
- }
+ catch(ProcessKilledError pk) {
+
+ }
}
/**
