1 /* Copyright (c) 2004-2019. 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. */
7 #include "simgrid/s4u/Engine.hpp"
8 #include "simgrid/s4u/Host.hpp"
9 #include "src/instr/instr_private.hpp"
10 #include "src/msg/msg_private.hpp"
11 #include "src/simix/smx_private.hpp"
12 #include <xbt/config.hpp>
14 XBT_LOG_NEW_CATEGORY(msg, "All MSG categories");
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_kernel, msg, "Logging specific to MSG (kernel)");
17 bool MSG_Global_t::debug_multiple_use = false;
19 MSG_Global_t* msg_global = nullptr;
20 simgrid::xbt::Extension<simgrid::s4u::Actor, simgrid::msg::ActorUserData> simgrid::msg::ActorUserData::EXTENSION_ID;
22 static void MSG_exit();
24 /********************************* MSG **************************************/
27 * @ingroup msg_simulation
28 * @brief Initialize MSG with less verifications
29 * You should use the MSG_init() function instead. Failing to do so may turn into PEBKAC some day. You've been warned.
31 void MSG_init_nocheck(int *argc, char **argv) {
36 simgrid::config::bind_flag(MSG_Global_t::debug_multiple_use, "msg/debug-multiple-use",
37 "Print backtraces of both processes when there is a conflict of multiple use of a task");
39 SIMIX_global_init(argc, argv);
41 msg_global = new MSG_Global_t();
42 if (not simgrid::msg::ActorUserData::EXTENSION_ID.valid())
43 simgrid::msg::ActorUserData::EXTENSION_ID = simgrid::s4u::Actor::extension_create<simgrid::msg::ActorUserData>();
45 msg_global->sent_msg = 0;
46 msg_global->task_copy_callback = nullptr;
47 msg_global->process_data_cleanup = nullptr;
49 simgrid::s4u::Actor::on_creation.connect([](simgrid::s4u::Actor& actor) {
50 XBT_DEBUG("creating the extension to store user data");
51 actor.extension_set(new simgrid::msg::ActorUserData());
54 simgrid::s4u::Actor::on_destruction.connect([](simgrid::s4u::Actor const& actor) {
55 // free the data if a function was provided
56 void* userdata = actor.extension<simgrid::msg::ActorUserData>()->get_user_data();
57 if (userdata && msg_global->process_data_cleanup) {
58 msg_global->process_data_cleanup(userdata);
64 /* Ignore total amount of messages sent during the simulation for heap comparison */
65 MC_ignore_heap(&(msg_global->sent_msg), sizeof(msg_global->sent_msg));
68 if (simgrid::config::get_value<bool>("clean-atexit"))
72 void MSG_config(const char *key, const char *value){
73 xbt_assert(msg_global,"ERROR: Please call MSG_init() before using MSG_config()");
74 simgrid::config::set_as_string(key, value);
77 static void MSG_exit() {
82 unsigned long int MSG_get_sent_msg()
84 return msg_global->sent_msg;
87 /** @brief register functions bypassing the parser */
88 void MSG_set_function(const char* host_id, const char* function_name, xbt_dynar_t arguments)
90 SIMIX_process_set_function(host_id, function_name, arguments, -1, -1);