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/* Copyright (c) 2007-2025. 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.hpp"
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
namespace sg4 = simgrid::s4u;
static void test_detach(sg_size_t size)
{
const sg4::Disk* disk = sg4::Host::current()->get_disks().front();
sg4::this_actor::sleep_for(0.2);
XBT_INFO("Hello! read %llu bytes from %s", size, disk->get_cname());
sg4::IoPtr activity = disk->io_init(size, sg4::Io::OpType::READ);
// Attach a callback to print some log when the detached activity completes
activity->on_this_completion_cb([](sg4::Io const&) {
XBT_INFO("Detached activity is done");
});
activity->detach();
XBT_INFO("Goodbye now!");
}
static void test(sg_size_t size)
{
const sg4::Disk* disk = sg4::Host::current()->get_disks().front();
XBT_INFO("Hello! read %llu bytes from %s", size, disk->get_cname());
sg4::IoPtr activity = disk->io_init(size, sg4::Io::OpType::READ);
activity->start();
activity->wait();
XBT_INFO("Goodbye now!");
}
static void test_waitfor(sg_size_t size)
{
const sg4::Disk* disk = sg4::Host::current()->get_disks().front();
XBT_INFO("Hello! write %llu bytes from %s", size, disk->get_cname());
sg4::IoPtr activity = disk->write_async(size);
try {
activity->wait_for(0.5);
} catch (const simgrid::TimeoutException&) {
XBT_INFO("Asynchronous write: Timeout!");
}
XBT_INFO("Goodbye now!");
}
static void test_cancel(sg_size_t size)
{
const sg4::Disk* disk = sg4::Host::current()->get_disks().front();
sg4::this_actor::sleep_for(0.5);
XBT_INFO("Hello! write %llu bytes from %s", size, disk->get_cname());
sg4::IoPtr activity = disk->write_async(size);
sg4::this_actor::sleep_for(0.5);
XBT_INFO("I changed my mind, cancel!");
activity->cancel();
XBT_INFO("Goodbye now!");
}
static void test_monitor(sg_size_t size)
{
const sg4::Disk* disk = sg4::Host::current()->get_disks().front();
sg4::this_actor::sleep_for(1);
sg4::IoPtr activity = disk->write_async(size);
while (not activity->test()) {
XBT_INFO("Remaining amount of bytes to write: %g", activity->get_remaining());
sg4::this_actor::sleep_for(0.2);
}
activity->wait();
XBT_INFO("Goodbye now!");
}
int main(int argc, char* argv[])
{
sg4::Engine e(&argc, argv);
e.load_platform(argv[1]);
e.host_by_name("bob")->add_actor("test", test, 2e7);
e.host_by_name("bob")->add_actor("test_detach", test_detach, 2e7);
e.host_by_name("alice")->add_actor("test_waitfor", test_waitfor, 5e7);
e.host_by_name("alice")->add_actor("test_cancel", test_cancel, 5e7);
e.host_by_name("alice")->add_actor("test_monitor", test_monitor, 5e7);
e.run();
XBT_INFO("Simulation time %g", e.get_clock());
return 0;
}
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