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/* Copyright (c) 2017-2025. 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. */
import org.simgrid.s4u.*;
class HostRunner extends Actor {
public void run()
{
/* -Add an extra disk in a programmatic way */
Host.current().add_disk("Disk3", /*read bandwidth*/ 9.6e7, /*write bandwidth*/ 6.4e7).seal();
/* - Display information on the disks mounted by the current host */
Engine.info("*** Storage info on %s ***", Host.current().get_name());
/* - Retrieve all disks from current host */
Disk[] disk_list = Host.current().get_disks();
/* - For each disk mounted on host, display disk name and mount point */
for (Disk disk : disk_list)
Engine.info("Disk name: %s (read: %.0f B/s -- write: %.0f B/s)", disk.get_name(), disk.get_read_bandwidth(),
disk.get_write_bandwidth());
/* - Write 400,000 bytes on Disk1 */
Disk disk = disk_list[0];
long write = disk.write(400000);
Engine.info("Wrote %d bytes on '%s'", write, disk.get_name());
/* - Now read 200,000 bytes */
long read = disk.read(200000);
Engine.info("Read %d bytes on '%s'", read, disk.get_name());
/* - Write 800,000 bytes on Disk3 */
Disk disk3 = disk_list[disk_list.length - 1];
long write_on_disk3 = disk3.write(800000);
Engine.info("Wrote %d bytes on '%s'", write_on_disk3, disk3.get_name());
/* - Attach some user data to disk1 */
Engine.info("*** Get/set data for storage element: Disk1 ***");
String data = (String)disk.get_data();
Engine.info("Get storage data: '%s'", data);
disk.set_data("Some user data");
data = (String)disk.get_data();
Engine.info("Set and get data: '%s'", data);
}
}
public class io_disk_raw {
public static void main(String[] args)
{
Engine e = new Engine(args);
e.load_platform(args[0]);
/* - Display Host properties */
for (Host h : e.get_all_hosts()) {
Engine.info("*** %s properties ****", h.get_name());
for (String key : h.get_properties_names())
Engine.info(" %s -> %s", key, h.get_property(key));
}
e.host_by_name("bob").add_actor("", new HostRunner());
e.run();
Engine.info("Simulated ends.");
// The following call is useless in your code, but our continuous integration uses it to track memleaks
e.force_garbage_collection();
}
}
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