*/
public long id;
- /**
- *
- */
public Hashtable<String,String> properties;
/**
* The host of the process
*/
protected Host host = null;
- /**
- *
- * @return
- */
- public String msgName() {
- return this.name;
- }
+
/** The arguments of the method function of the process. */
public Vector<String> args;
this.args.addAll(Arrays.asList(args));
try {
- MsgNative.processCreate(this, host.getName());
+ create(host.getName());
} catch (HostNotFoundException e) {
throw new RuntimeException("The impossible happened (yet again): the host that I have were not found",e);
}
}
-
-
+ /**
+ * The natively implemented method to create an MSG process.
+ * @param host A valid (binded) host where create the process.
+ */
+ protected native void create(String hostName) throws HostNotFoundException;
/**
* This method kills all running process of the simulation.
*
* @return The function returns the PID of the next created process.
*
*/
- public static int killAll(int resetPID) {
- return MsgNative.processKillAll(resetPID);
- }
-
+ 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;
+ public void nativeStop() {
+ nativeStop = true;
}
/**
* getter for the flag that indicates that this thread must be killed
* @return
*
*/
- public boolean getNativeStop()
- {
+ public boolean getNativeStop() {
return nativeStop;
}
*/
public void kill() {
nativeStop();
- Msg.info("Process " + msgName() + " will be killed.");
-
+ Msg.info("Process " + msgName() + " will be killed.");
}
/**
* waiting for the completion.
*
*/
- public void pause() {
- MsgNative.processSuspend(this);
- }
+ public native void pause();
/**
* Resumes a suspended process by resuming the task on which it was
* waiting for the completion.
*
*
*/
- public void restart() {
- MsgNative.processResume(this);
- }
+ public native void restart();
/**
* Tests if a process is suspended.
*
* @return The method returns true if the process is suspended.
* Otherwise the method returns false.
*/
- public boolean isSuspended() {
- return MsgNative.processIsSuspended(this);
+ public native boolean isSuspended();
+ /**
+ * Returns the name of the process
+ */
+ public String msgName() {
+ return this.name;
}
/**
- * Returns the host of a process.
- *
+ * Returns the host of the process.
* @return The host instance of the process.
- *
- *
*/
public Host getHost() {
- if (this.host == null) {
- this.host = MsgNative.processGetHost(this);
- }
return this.host;
}
/**
*
* @exception NativeException on error in the native SimGrid code
*/
- public static Process fromPID(int PID) throws NativeException {
- return MsgNative.processFromPID(PID);
- }
+ public static native Process fromPID(int PID) throws NativeException;
/**
* This method returns the PID of the process.
*
*
*/
public int getPID() {
- if (pid == -1) {
- pid = MsgNative.processGetPID(this);
- }
return pid;
}
/**
*
*/
public int getPPID() {
- if (ppid == -1) {
- ppid = MsgNative.processGetPPID(this);
- }
return ppid;
}
/**
* @return The current process.
*
*/
- public static Process currentProcess() {
- return MsgNative.processSelf();
- }
+ 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.
*
*
* @exception HostFailureException on error in the native SimGrid code
*/
- public static void waitFor(double seconds) throws HostFailureException {
- MsgNative.processWaitFor(seconds);
- }
- /**
+ public native void waitFor(double seconds) throws HostFailureException; /**
*
*/
public void showArgs() {
"] args[" + i + "]=" + (String) (this.args.get(i)));
}
/**
- * Let the simulated process sleep for the given amount of millisecond in the simulated world.
- *
- * You don't want to use sleep instead, because it would freeze your simulation
- * run without any impact on the simulated world.
- * @param millis
+ * Exit the process
*/
- public native void simulatedSleep(double seconds);
+ public native void exit();
/**
* This method runs the process. Il calls the method function that you must overwrite.
*/
public void run() {
- String[]args = null; /* do not fill it before the signal or this.args will be empty */
+ String[] args = null; /* do not fill it before the signal or this.args will be empty */
//waitSignal(); /* wait for other people to fill the process in */
}
this.main(args);
- MsgNative.processExit(this);
+ exit();
schedEnd.release();
} catch(MsgException e) {
e.printStackTrace();
catch(ProcessKilled pk) {
if (nativeStop) {
try {
- MsgNative.processExit(this);
+ 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
*/
System.err.println(currentThread().getName()+": I ignore that other exception");
}
- Msg.info(" Process " + ((Process) Thread.currentThread()).msgName() + " has been killed.");
- schedEnd.release();
+ Msg.info(" Process " + ((Process) Thread.currentThread()).msgName() + " has been killed.");
+ schedEnd.release();
}
else {
- pk.printStackTrace();
- Msg.info("Unexpected behavior. Stopping now");
- System.exit(1);
+ pk.printStackTrace();
+ Msg.info("Unexpected behavior. Stopping now");
+ System.exit(1);
}
}
}
throw new RuntimeException("The impossible did happend once again: I got interrupted in schedEnd.acquire()",e);
}
}
-
- /** Send the given task in the mailbox associated with the specified alias (waiting at most given time)
- * @param mailbox
- * @param task
- * @param timeout
- * @throws TimeoutException
- * @throws HostFailureException
- * @throws TransferFailureException */
- public void taskSend(String mailbox, Task task, double timeout) throws NativeException, TransferFailureException, HostFailureException, TimeoutException {
- task.send(mailbox, timeout);
- }
-
- /** Send the given task in the mailbox associated with the specified alias
- * @param mailbox
- * @param task
- * @throws TimeoutException
- * @throws HostFailureException
- * @throws TransferFailureException */
- public void taskSend(String mailbox, Task task) throws NativeException, TransferFailureException, HostFailureException, TimeoutException {
- task.send(mailbox, -1);
- }
-
- /** Receive a task on mailbox associated with the specified mailbox
- * @param mailbox
- * @return
- * @throws TransferFailureException
- * @throws HostFailureException
- * @throws TimeoutException
- */
- public Task taskReceive(String mailbox) throws TransferFailureException, HostFailureException, TimeoutException {
- return Task.receive(mailbox, -1.0, null);
- }
-
- /** Receive a task on mailbox associated with the specified alias (waiting at most given time)
- * @param mailbox
- * @param timeout
- * @return
- * @throws TransferFailureException
- * @throws HostFailureException
- * @throws TimeoutException
- */
- public Task taskReceive(String mailbox, double timeout) throws TransferFailureException, HostFailureException, TimeoutException {
- return Task.receive(mailbox, timeout, null);
- }
-
- /** Receive a task on mailbox associated with the specified alias from given sender
- * @param mailbox
- * @param host
- * @param timeout
- * @return
- * @throws TransferFailureException
- * @throws HostFailureException
- * @throws TimeoutException
- */
- public Task taskReceive(String mailbox, double timeout, Host host) throws TransferFailureException, HostFailureException, TimeoutException {
- return Task.receive(mailbox, timeout, host);
- }
-
- /** Receive a task on mailbox associated with the specified alias from given sender
- * @param mailbox
- * @param host
- * @return
- * @throws TransferFailureException
- * @throws HostFailureException
- * @throws TimeoutException
- */
- public Task taskReceive(String mailbox, Host host) throws TransferFailureException, HostFailureException, TimeoutException {
- return Task.receive(mailbox, -1.0, host);
+
+ /**
+ * Class initializer, to initialize various JNI stuff
+ */
+ public static native void nativeInit();
+ static {
+ nativeInit();
}
}
