1 /* Copyright (c) 2004-2015. 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.h"
13 XBT_LOG_NEW_CATEGORY(msg, "All MSG categories");
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_kernel, msg, "Logging specific to MSG (kernel)");
16 MSG_Global_t msg_global = nullptr;
17 static void MSG_exit();
19 /********************************* MSG **************************************/
21 static void _sg_cfg_cb_msg_debug_multiple_use(const char *name)
23 msg_global->debug_multiple_use = xbt_cfg_get_boolean(name);
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) {
33 TRACE_global_init(argc, argv);
35 xbt_getpid = &MSG_process_self_PID;
38 msg_global = xbt_new0(s_MSG_Global_t, 1);
40 xbt_cfg_register_boolean("msg/debug-multiple-use", "no", _sg_cfg_cb_msg_debug_multiple_use,
41 "Print backtraces of both processes when there is a conflict of multiple use of a task");
43 SIMIX_global_init(argc, argv);
45 msg_global->sent_msg = 0;
46 msg_global->task_copy_callback = nullptr;
47 msg_global->process_data_cleanup = nullptr;
49 SIMIX_function_register_process_create(MSG_process_create_from_SIMIX);
50 SIMIX_function_register_process_cleanup(MSG_process_cleanup_from_SIMIX);
52 simgrid::s4u::onPlatformCreated.connect(MSG_post_create_environment);
54 simgrid::MsgHostExt::EXTENSION_ID = simgrid::s4u::Host::extension_create<simgrid::MsgHostExt>();
55 simgrid::s4u::Host::onCreation.connect([](simgrid::s4u::Host& host) {
56 host.extension_set<simgrid::MsgHostExt>(new simgrid::MsgHostExt());
61 /* Ignore total amount of messages sent during the simulation for heap comparison */
62 MC_ignore_heap(&(msg_global->sent_msg), sizeof(msg_global->sent_msg));
65 XBT_DEBUG("ADD MSG LEVELS");
66 MSG_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, (void_f_pvoid_t) __MSG_storage_destroy);
67 MSG_FILE_LEVEL = xbt_lib_add_level(file_lib, (void_f_pvoid_t) __MSG_file_destroy);
68 if(xbt_cfg_get_boolean("clean-atexit"))
72 /** \ingroup msg_simulation
73 * \brief Launch the MSG simulation
75 msg_error_t MSG_main()
77 /* Clean IO before the run */
89 /** \ingroup msg_simulation
90 * \brief set a configuration variable
92 * Do --help on any simgrid binary to see the list of currently existing configuration variables, and see Section @ref options.
95 * MSG_config("host/model","ptask_L07");
97 void MSG_config(const char *key, const char *value){
98 xbt_assert(msg_global,"ERROR: Please call MSG_init() before using MSG_config()");
99 xbt_cfg_set_as_string(key, value);
102 /** \ingroup msg_simulation
103 * \brief Kill all running process
105 * \param reset_PIDs should we reset the PID numbers. A negative
106 * number means no reset and a positive number will be used to set the PID
107 * of the next newly created process.
109 int MSG_process_killall(int reset_PIDs)
111 simcall_process_killall(reset_PIDs);
116 static void MSG_exit() {
117 if (msg_global==nullptr)
120 TRACE_surf_resource_utilization_release();
123 msg_global = nullptr;
126 /** \ingroup msg_simulation
127 * \brief A clock (in second).
129 double MSG_get_clock()
131 return SIMIX_get_clock();
134 unsigned long int MSG_get_sent_msg()
136 return msg_global->sent_msg;