1 /* Copyright (c) 2004-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "simgrid/msg.h"
8 #include "instr/instr_interface.h"
9 #include "msg_private.h"
11 #include "xbt/sysdep.h"
13 #include "simgrid/sg_config.h" /* Configuration mechanism of SimGrid */
14 #include "src/surf/xml/platf_private.hpp" // FIXME: KILLME by removing MSG_post_create_environment()
16 XBT_LOG_NEW_CATEGORY(msg, "All MSG categories");
17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_kernel, msg, "Logging specific to MSG (kernel)");
19 MSG_Global_t msg_global = nullptr;
20 static void MSG_exit(void);
22 /********************************* MSG **************************************/
24 static void _sg_cfg_cb_msg_debug_multiple_use(const char *name)
26 msg_global->debug_multiple_use = xbt_cfg_get_boolean(name);
29 static void MSG_host_create_(sg_host_t host)
31 __MSG_host_create(host);
35 * \ingroup msg_simulation
36 * \brief Initialize MSG with less verifications
37 * You should use the MSG_init() function instead. Failing to do so may turn into PEBKAC some day. You've been warned.
39 void MSG_init_nocheck(int *argc, char **argv) {
41 TRACE_global_init(argc, argv);
43 xbt_getpid = MSG_process_self_PID;
46 msg_global = xbt_new0(s_MSG_Global_t, 1);
48 xbt_cfg_register_boolean("msg/debug-multiple-use", "no", _sg_cfg_cb_msg_debug_multiple_use,
49 "Print backtraces of both processes when there is a conflict of multiple use of a task");
51 SIMIX_global_init(argc, argv);
53 msg_global->sent_msg = 0;
54 msg_global->task_copy_callback = nullptr;
55 msg_global->process_data_cleanup = nullptr;
57 SIMIX_function_register_process_create(MSG_process_create_from_SIMIX);
58 SIMIX_function_register_process_cleanup(MSG_process_cleanup_from_SIMIX);
60 simgrid::surf::on_postparse.connect(MSG_post_create_environment);
61 simgrid::s4u::Host::onCreation.connect([](simgrid::s4u::Host& host) {
62 MSG_host_create_(&host);
64 MSG_HOST_LEVEL = simgrid::s4u::Host::extension_create([](void *p) {
65 __MSG_host_priv_free((msg_host_priv_t) p);
71 /* Ignore total amount of messages sent during the simulation for heap comparison */
72 MC_ignore_heap(&(msg_global->sent_msg), sizeof(msg_global->sent_msg));
75 XBT_DEBUG("ADD MSG LEVELS");
76 MSG_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, (void_f_pvoid_t) __MSG_storage_destroy);
77 MSG_FILE_LEVEL = xbt_lib_add_level(file_lib, (void_f_pvoid_t) __MSG_file_destroy);
78 if(xbt_cfg_get_boolean("clean-atexit")) atexit(MSG_exit);
81 /** \ingroup msg_simulation
82 * \brief Launch the MSG simulation
84 msg_error_t MSG_main(void)
86 /* Clean IO before the run */
98 /** \ingroup msg_simulation
99 * \brief set a configuration variable
101 * Do --help on any simgrid binary to see the list of currently existing configuration variables, and see Section @ref options.
104 * MSG_config("host/model","ptask_L07");
106 void MSG_config(const char *key, const char *value){
107 xbt_assert(msg_global,"ERROR: Please call MSG_init() before using MSG_config()");
108 xbt_cfg_set_as_string(key, value);
111 /** \ingroup msg_simulation
112 * \brief Kill all running process
114 * \param reset_PIDs should we reset the PID numbers. A negative
115 * number means no reset and a positive number will be used to set the PID
116 * of the next newly created process.
118 int MSG_process_killall(int reset_PIDs)
120 simcall_process_killall(reset_PIDs);
123 msg_global->session++;
129 static void MSG_exit(void) {
130 if (msg_global==nullptr)
133 TRACE_surf_resource_utilization_release();
136 msg_global = nullptr;
139 /** \ingroup msg_simulation
140 * \brief A clock (in second).
142 double MSG_get_clock(void)
144 return SIMIX_get_clock();
147 unsigned long int MSG_get_sent_msg()
149 return msg_global->sent_msg;