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);
26 static void MSG_host_create_(sg_host_t host)
28 __MSG_host_create(host);
32 * \ingroup msg_simulation
33 * \brief Initialize MSG with less verifications
34 * You should use the MSG_init() function instead. Failing to do so may turn into PEBKAC some day. You've been warned.
36 void MSG_init_nocheck(int *argc, char **argv) {
38 TRACE_global_init(argc, argv);
40 xbt_getpid = &MSG_process_self_PID;
43 msg_global = xbt_new0(s_MSG_Global_t, 1);
45 xbt_cfg_register_boolean("msg/debug-multiple-use", "no", _sg_cfg_cb_msg_debug_multiple_use,
46 "Print backtraces of both processes when there is a conflict of multiple use of a task");
48 SIMIX_global_init(argc, argv);
50 msg_global->sent_msg = 0;
51 msg_global->task_copy_callback = nullptr;
52 msg_global->process_data_cleanup = nullptr;
54 SIMIX_function_register_process_create(MSG_process_create_from_SIMIX);
55 SIMIX_function_register_process_cleanup(MSG_process_cleanup_from_SIMIX);
57 simgrid::s4u::onPlatformCreated.connect(MSG_post_create_environment);
58 simgrid::s4u::Host::onCreation.connect([](simgrid::s4u::Host& host) {
59 MSG_host_create_(&host);
61 MSG_HOST_LEVEL = simgrid::s4u::Host::extension_create([](void *p) {
62 __MSG_host_priv_free((msg_host_priv_t) p);
68 /* Ignore total amount of messages sent during the simulation for heap comparison */
69 MC_ignore_heap(&(msg_global->sent_msg), sizeof(msg_global->sent_msg));
72 XBT_DEBUG("ADD MSG LEVELS");
73 MSG_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, (void_f_pvoid_t) __MSG_storage_destroy);
74 MSG_FILE_LEVEL = xbt_lib_add_level(file_lib, (void_f_pvoid_t) __MSG_file_destroy);
75 if(xbt_cfg_get_boolean("clean-atexit"))
79 /** \ingroup msg_simulation
80 * \brief Launch the MSG simulation
82 msg_error_t MSG_main()
84 /* Clean IO before the run */
96 /** \ingroup msg_simulation
97 * \brief set a configuration variable
99 * Do --help on any simgrid binary to see the list of currently existing configuration variables, and see Section @ref options.
102 * MSG_config("host/model","ptask_L07");
104 void MSG_config(const char *key, const char *value){
105 xbt_assert(msg_global,"ERROR: Please call MSG_init() before using MSG_config()");
106 xbt_cfg_set_as_string(key, value);
109 /** \ingroup msg_simulation
110 * \brief Kill all running process
112 * \param reset_PIDs should we reset the PID numbers. A negative
113 * number means no reset and a positive number will be used to set the PID
114 * of the next newly created process.
116 int MSG_process_killall(int reset_PIDs)
118 simcall_process_killall(reset_PIDs);
123 static void MSG_exit() {
124 if (msg_global==nullptr)
127 TRACE_surf_resource_utilization_release();
130 msg_global = nullptr;
133 /** \ingroup msg_simulation
134 * \brief A clock (in second).
136 double MSG_get_clock()
138 return SIMIX_get_clock();
141 unsigned long int MSG_get_sent_msg()
143 return msg_global->sent_msg;