-/* Copyright (c) 2006-2021. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2006-2022. 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. */
-#include <mutex> /* std::mutex and std::lock_guard */
#include "simgrid/s4u.hpp" /* All of S4U */
+#include "xbt/config.hpp"
+#include <mutex> /* std::mutex and std::lock_guard */
+
+namespace sg4 = simgrid::s4u;
-constexpr int NB_ACTOR = 6;
+static simgrid::config::Flag<int> cfg_actor_count("actors", "How many pairs of actors should be started?", 6);
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "a sample log category");
/* This worker uses a classical mutex */
-static void worker(simgrid::s4u::MutexPtr mutex, int& result)
+static void worker(sg4::MutexPtr mutex, int& result)
{
// lock the mutex before enter in the critical section
mutex->lock();
mutex->unlock();
}
-static void workerLockGuard(simgrid::s4u::MutexPtr mutex, int& result)
+static void workerLockGuard(sg4::MutexPtr mutex, int& result)
{
// Simply use the std::lock_guard like this
// It's like a lock() that would do the unlock() automatically when getting out of scope
- std::lock_guard<simgrid::s4u::Mutex> lock(*mutex);
+ std::lock_guard<sg4::Mutex> lock(*mutex);
// then you are in a safe zone
XBT_INFO("Hello s4u, I'm ready to compute after a lock_guard");
// Nothing specific here: the unlock will be automatic
}
-static void master()
+int main(int argc, char** argv)
{
- int result = 0;
- simgrid::s4u::MutexPtr mutex = simgrid::s4u::Mutex::create();
-
- for (int i = 0; i < NB_ACTOR * 2 ; i++) {
- // To create a worker use the static method simgrid::s4u::Actor.
- if((i % 2) == 0 )
- simgrid::s4u::Actor::create("worker", simgrid::s4u::Host::by_name("Jupiter"), workerLockGuard, mutex,
- std::ref(result));
- else
- simgrid::s4u::Actor::create("worker", simgrid::s4u::Host::by_name("Tremblay"), worker, mutex, std::ref(result));
- }
+ sg4::Engine e(&argc, argv);
+ e.load_platform("../../platforms/two_hosts.xml");
- simgrid::s4u::this_actor::sleep_for(10);
- XBT_INFO("Results is -> %d", result);
-}
+ /* Create the requested amount of actors pairs. Each pair has a specific mutex and cell in `result`. */
+ std::vector<int> result(cfg_actor_count.get());
+
+ for (int i = 0; i < cfg_actor_count; i++) {
+ sg4::MutexPtr mutex = sg4::Mutex::create();
+ sg4::Actor::create("worker", sg4::Host::by_name("Jupiter"), workerLockGuard, mutex, std::ref(result[i]));
+ sg4::Actor::create("worker", sg4::Host::by_name("Tremblay"), worker, mutex, std::ref(result[i]));
+ }
-int main(int argc, char **argv)
-{
- simgrid::s4u::Engine e(&argc, argv);
- e.load_platform("../../platforms/two_hosts.xml");
- simgrid::s4u::Actor::create("main", simgrid::s4u::Host::by_name("Tremblay"), master);
e.run();
+ for (int i = 0; i < cfg_actor_count; i++)
+ XBT_INFO("Result[%d] -> %d", i, result[i]);
+
return 0;
}