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/* Copyright (c) 2006-2025. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
import org.simgrid.s4u.*;
class Worker extends Actor {
ConditionVariable cv;
Mutex mutex;
public Worker(ConditionVariable cv, Mutex mutex)
{
this.cv = cv;
this.mutex = mutex;
}
public void run()
{
Engine.info("Start processing data which is '%s'.", Main.data);
Main.data += " after processing";
// Send data back to main()
Engine.info("Signal to master that the data processing is completed, and exit.");
Main.done = true;
mutex.lock();
cv.notify_one();
mutex.unlock();
}
}
class Main extends Actor {
static String data = "Example data";
static boolean done = false;
public void run()
{
Engine e = this.get_engine();
Mutex mutex = Mutex.create();
ConditionVariable cv = ConditionVariable.create();
mutex.lock();
Actor worker = e.host_by_name("Jupiter").add_actor("worker", new Worker(cv, mutex));
// wait for the worker
cv.await(mutex);
mutex.unlock();
Engine.info("data is now '%s'.", data);
worker.join();
}
}
public class synchro_condition_variable {
public static void main(String[] args)
{
Engine e = new Engine(args);
e.load_platform(args[0]);
e.host_by_name("Tremblay").add_actor("main", new Main());
e.run();
// The following call is useless in your code, but our continuous integration uses it to track memleaks
e.force_garbage_collection();
}
}
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