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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. */
#include "simgrid/s4u/Actor.hpp"
#include <mutex> /* std::mutex and std::scoped_lock */
#include <simgrid/s4u.hpp> /* All of S4U */
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "a sample log category");
namespace sg4 = simgrid::s4u;
static void competitor(int id, sg4::ConditionVariablePtr cv, sg4::MutexPtr mtx, std::shared_ptr<bool> ready)
{
XBT_INFO("Entering the race...");
std::unique_lock lock(*mtx);
while (not *ready) {
auto now = sg4::Engine::get_clock();
if (cv->wait_until(lock, now + (id + 1) * 0.25) == std::cv_status::timeout) {
XBT_INFO("Out of wait_until (timeout)");
} else {
XBT_INFO("Out of wait_until (YAY!)");
}
}
XBT_INFO("Running!");
}
static void go(sg4::ConditionVariablePtr cv, sg4::MutexPtr mtx, std::shared_ptr<bool> ready)
{
XBT_INFO("Are you ready? ...");
sg4::this_actor::sleep_for(3);
const std::scoped_lock lock(*mtx);
XBT_INFO("Go go go!");
*ready = true;
cv->notify_all();
}
static void main_actor()
{
auto mtx = sg4::Mutex::create();
auto cv = sg4::ConditionVariable::create();
auto ready = std::make_shared<bool>(false);
auto* host = sg4::this_actor::get_host();
for (int i = 0; i < 10; ++i)
host->add_actor("competitor", competitor, i, cv, mtx, ready);
host->add_actor("go", go, cv, mtx, ready);
}
int main(int argc, char* argv[])
{
sg4::Engine e(&argc, argv);
e.load_platform("../../platforms/small_platform.xml");
e.host_by_name("Tremblay")->add_actor("main", main_actor);
e.run();
return 0;
}
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