1 /* Copyright (c) 2010-2017. 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 "s4u-dht-chord.hpp"
8 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_chord, "Messages specific for this s4u example");
9 simgrid::xbt::Extension<simgrid::s4u::Host, HostChord> HostChord::EXTENSION_ID;
14 int* powers2 = nullptr;
16 /* Global initialization of the Chord simulation. */
17 static void chord_init()
19 // compute the powers of 2 once for all
20 powers2 = new int[nb_bits];
22 for (int i = 0; i < nb_bits; i++) {
27 XBT_DEBUG("Sets nb_keys to %d", nb_keys);
29 HostChord::EXTENSION_ID = simgrid::s4u::Host::extension_create<HostChord>();
31 std::vector<simgrid::s4u::Host*> list;
32 simgrid::s4u::Engine::getInstance()->getHostList(&list);
33 for (auto const& host : list)
34 host->extension_set(new HostChord(host));
37 static void chord_exit()
42 int main(int argc, char* argv[])
44 simgrid::s4u::Engine e(&argc, argv);
45 xbt_assert(argc > 2, "Usage: %s [-nb_bits=n] [-timeout=t] platform_file deployment_file\n"
46 "\tExample: %s ../msg_platform.xml chord.xml\n",
48 char** options = &argv[1];
49 while (not strncmp(options[0], "-", 1)) {
50 unsigned int length = strlen("-nb_bits=");
51 if (not strncmp(options[0], "-nb_bits=", length) && strlen(options[0]) > length) {
52 nb_bits = xbt_str_parse_int(options[0] + length, "Invalid nb_bits parameter: %s");
53 XBT_DEBUG("Set nb_bits to %d", nb_bits);
55 length = strlen("-timeout=");
56 if (not strncmp(options[0], "-timeout=", length) && strlen(options[0]) > length) {
57 timeout = xbt_str_parse_int(options[0] + length, "Invalid timeout parameter: %s");
58 XBT_DEBUG("Set timeout to %d", timeout);
60 xbt_die("Invalid chord option '%s'", options[0]);
66 e.loadPlatform(options[0]);
70 e.registerFunction<Node>("node");
71 e.loadDeployment(options[1]);
75 XBT_INFO("Simulated time: %g", e.getClock());