1 /* Copyright (c) 2017-2021. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "simgrid/s4u.hpp"
8 #include <unordered_map>
10 XBT_LOG_NEW_DEFAULT_CATEGORY(disk_test, "Messages specific for this simulation");
14 /* - Display information on the disks mounted by the current host */
15 XBT_INFO("*** Storage info on %s ***", simgrid::s4u::Host::current()->get_cname());
17 /* - Retrieve all disks from current host */
18 std::vector<simgrid::s4u::Disk*> const& disk_list = simgrid::s4u::Host::current()->get_disks();
20 /* - For each disk mounted on host, display disk name and mount point */
21 for (auto const& disk : disk_list)
22 XBT_INFO("Disk name: %s (read: %.0f B/s -- write: %.0f B/s ", disk->get_cname(), disk->get_read_bandwidth(),
23 disk->get_write_bandwidth());
25 /* - Write 400,000 bytes on Disk1 */
26 simgrid::s4u::Disk* disk = disk_list.front();
27 sg_size_t write = disk->write(400000);
28 XBT_INFO("Wrote %llu bytes on '%s'", write, disk->get_cname());
30 /* - Now read 200,000 bytes */
31 sg_size_t read = disk->read(200000);
32 XBT_INFO("Read %llu bytes on '%s'", read, disk->get_cname());
34 /* - Attach some user data to disk1 */
35 XBT_INFO("*** Get/set data for storage element: Disk1 ***");
37 const auto* data = static_cast<std::string*>(disk->get_data());
39 XBT_INFO("Get storage data: '%s'", data ? data->c_str() : "No user data");
41 disk->set_data(new std::string("Some user data"));
42 data = static_cast<std::string*>(disk->get_data());
43 XBT_INFO("Set and get data: '%s'", data->c_str());
47 int main(int argc, char** argv)
49 simgrid::s4u::Engine e(&argc, argv);
50 e.load_platform(argv[1]);
52 /* - Display Host properties */
53 for (auto h : e.get_all_hosts()) {
54 XBT_INFO("*** %s properties ****", h->get_cname());
55 for (auto const& kv : *h->get_properties())
56 XBT_INFO(" %s -> %s", kv.first.c_str(), kv.second.c_str());
59 simgrid::s4u::Actor::create("", simgrid::s4u::Host::by_name("bob"), host);
62 XBT_INFO("Simulated time: %g", simgrid::s4u::Engine::get_clock());