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/* Copyright (c) 2010-2025. 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. */
/* This source code simply loads the platform. This is only useful to play
* with the tracing module. See the tesh file to see how to generate the
* traces.
*/
#include "simgrid/instr.h"
#include "simgrid/s4u.hpp"
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
namespace sg4 = simgrid::s4u;
static void trace_fun()
{
const auto host = sg4::this_actor::get_host()->get_name();
// the hostname has an empty HDD with a capacity of 100000 (bytes)
simgrid::instr::set_host_variable(host, "HDD_capacity", 100000);
simgrid::instr::set_host_variable(host, "HDD_utilization", 0);
for (int i = 0; i < 10; i++) {
// create and execute a task just to make the simulated time advance
sg4::this_actor::execute(1e4);
// ADD: after the execution of this task, the HDD utilization increases by 100 (bytes)
simgrid::instr::add_host_variable(host, "HDD_utilization", 100);
}
for (int i = 0; i < 10; i++) {
// create and execute a task just to make the simulated time advance
sg4::this_actor::execute(1e4);
// SUB: after the execution of this task, the HDD utilization decreases by 100 (bytes)
simgrid::instr::sub_host_variable(host, "HDD_utilization", 100);
}
}
int main(int argc, char* argv[])
{
sg4::Engine e(&argc, argv);
xbt_assert(argc > 1, "Usage: %s platform_file\n \tExample: %s small_platform.xml\n", argv[0], argv[0]);
e.load_platform(argv[1]);
// declaring user variables
simgrid::instr::declare_host_variable("HDD_capacity");
simgrid::instr::declare_host_variable("HDD_utilization", "1 0 0"); // red color
e.add_actor("master", e.host_by_name("Tremblay"), trace_fun);
e.run();
// get user declared variables
if (const auto& host_variables = simgrid::instr::get_host_variables(); not host_variables.empty()) {
XBT_INFO("Declared host variables:");
for (const auto& var : host_variables)
XBT_INFO("%s", var.c_str());
}
const auto& link_variables = simgrid::instr::get_link_variables();
xbt_assert(link_variables.empty(), "Should not have any declared link variable!");
return 0;
}
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