1 /* Copyright (c) 2004-2017. 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 "simgrid/s4u/Engine.hpp"
7 #include "simgrid/s4u/Host.hpp"
9 #include "instr/instr_interface.h"
11 #include "src/msg/msg_private.hpp"
13 XBT_LOG_NEW_CATEGORY(msg, "All MSG categories");
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_kernel, msg, "Logging specific to MSG (kernel)");
18 MSG_Global_t msg_global = nullptr;
19 static void MSG_exit();
21 /********************************* MSG **************************************/
23 static void _sg_cfg_cb_msg_debug_multiple_use(const char *name)
25 msg_global->debug_multiple_use = xbt_cfg_get_boolean(name);
29 * \ingroup msg_simulation
30 * \brief Initialize MSG with less verifications
31 * You should use the MSG_init() function instead. Failing to do so may turn into PEBKAC some day. You've been warned.
33 void MSG_init_nocheck(int *argc, char **argv) {
39 msg_global = new s_MSG_Global_t();
41 xbt_cfg_register_boolean("msg/debug-multiple-use", "no", _sg_cfg_cb_msg_debug_multiple_use,
42 "Print backtraces of both processes when there is a conflict of multiple use of a task");
44 SIMIX_global_init(argc, argv);
46 msg_global->sent_msg = 0;
47 msg_global->task_copy_callback = nullptr;
48 msg_global->process_data_cleanup = nullptr;
50 SIMIX_function_register_process_create(MSG_process_create_from_SIMIX);
51 SIMIX_function_register_process_cleanup(MSG_process_cleanup_from_SIMIX);
53 simgrid::MsgHostExt::EXTENSION_ID = simgrid::s4u::Host::extension_create<simgrid::MsgHostExt>();
54 simgrid::s4u::Host::onCreation.connect([](simgrid::s4u::Host& host) {
55 host.extension_set<simgrid::MsgHostExt>(new simgrid::MsgHostExt());
60 /* Ignore total amount of messages sent during the simulation for heap comparison */
61 MC_ignore_heap(&(msg_global->sent_msg), sizeof(msg_global->sent_msg));
64 if (xbt_cfg_get_boolean("clean-atexit"))
68 /** \ingroup msg_simulation
69 * \brief Launch the MSG simulation
71 msg_error_t MSG_main()
73 /* Clean IO before the run */
85 /** \ingroup msg_simulation
86 * \brief set a configuration variable
88 * Do --help on any simgrid binary to see the list of currently existing configuration variables, and see Section @ref options.
91 * MSG_config("host/model","ptask_L07");
93 void MSG_config(const char *key, const char *value){
94 xbt_assert(msg_global,"ERROR: Please call MSG_init() before using MSG_config()");
95 xbt_cfg_set_as_string(key, value);
98 /** \ingroup msg_simulation
99 * \brief Kill all running process
101 * \param reset_PIDs should we reset the PID numbers. A negative
102 * number means no reset and a positive number will be used to set the PID
103 * of the next newly created process.
105 int MSG_process_killall(int reset_PIDs)
107 simcall_process_killall(reset_PIDs);
112 static void MSG_exit() {
113 if (msg_global==nullptr)
118 msg_global = nullptr;
121 /** \ingroup msg_simulation
122 * \brief A clock (in second).
124 double MSG_get_clock()
126 return SIMIX_get_clock();
129 unsigned long int MSG_get_sent_msg()
131 return msg_global->sent_msg;