1 /* Copyright (c) 2017-2022. 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 /* -Add an extra disk in a programmatic way */
15 simgrid::s4u::Host::current()->create_disk("Disk3", /*read bandwidth*/ 9.6e7, /*write bandwidth*/6.4e7)->seal();
17 /* - Display information on the disks mounted by the current host */
18 XBT_INFO("*** Storage info on %s ***", simgrid::s4u::Host::current()->get_cname());
20 /* - Retrieve all disks from current host */
21 std::vector<simgrid::s4u::Disk*> const& disk_list = simgrid::s4u::Host::current()->get_disks();
23 /* - For each disk mounted on host, display disk name and mount point */
24 for (auto const& disk : disk_list)
25 XBT_INFO("Disk name: %s (read: %.0f B/s -- write: %.0f B/s", disk->get_cname(), disk->get_read_bandwidth(),
26 disk->get_write_bandwidth());
28 /* - Write 400,000 bytes on Disk1 */
29 simgrid::s4u::Disk* disk = disk_list.front();
30 sg_size_t write = disk->write(400000);
31 XBT_INFO("Wrote %llu bytes on '%s'", write, disk->get_cname());
33 /* - Now read 200,000 bytes */
34 sg_size_t read = disk->read(200000);
35 XBT_INFO("Read %llu bytes on '%s'", read, disk->get_cname());
37 /* - Write 800,000 bytes on Disk3 */
38 const simgrid::s4u::Disk* disk3 = disk_list.back();
39 sg_size_t write_on_disk3 = disk3->write(800000);
40 XBT_INFO("Wrote %llu bytes on '%s'", write_on_disk3, disk3->get_cname());
42 /* - Attach some user data to disk1 */
43 XBT_INFO("*** Get/set data for storage element: Disk1 ***");
45 const auto* data = disk->get_data<std::string>();
47 XBT_INFO("Get storage data: '%s'", data ? data->c_str() : "No user data");
49 disk->set_data(new std::string("Some user data"));
50 data = disk->get_data<std::string>();
51 XBT_INFO("Set and get data: '%s'", data->c_str());
55 int main(int argc, char** argv)
57 simgrid::s4u::Engine e(&argc, argv);
58 e.load_platform(argv[1]);
60 /* - Display Host properties */
61 for (auto h : e.get_all_hosts()) {
62 XBT_INFO("*** %s properties ****", h->get_cname());
63 for (auto const& kv : *h->get_properties())
64 XBT_INFO(" %s -> %s", kv.first.c_str(), kv.second.c_str());
67 simgrid::s4u::Actor::create("", e.host_by_name("bob"), host);
70 XBT_INFO("Simulated time: %g", simgrid::s4u::Engine::get_clock());