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/s4u/host.hpp>
9 #include "simgrid/msg.h"
10 #include "instr/instr_interface.h"
11 #include "msg_private.h"
13 #include "xbt/sysdep.h"
15 #include "simgrid/sg_config.h" /* Configuration mechanism of SimGrid */
16 #include "src/surf/xml/platf_private.hpp" // FIXME: KILLME by removing MSG_post_create_environment()
18 XBT_LOG_NEW_CATEGORY(msg, "All MSG categories");
19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_kernel, msg, "Logging specific to MSG (kernel)");
21 MSG_Global_t msg_global = nullptr;
22 static void MSG_exit(void);
24 /********************************* MSG **************************************/
26 static void _sg_cfg_cb_msg_debug_multiple_use(const char *name)
28 msg_global->debug_multiple_use = xbt_cfg_get_boolean(name);
31 static void MSG_host_create_(sg_host_t host)
33 __MSG_host_create(host);
37 * \ingroup msg_simulation
38 * \brief Initialize MSG with less verifications
39 * You should use the MSG_init() function instead. Failing to do so may turn into PEBKAC some day. You've been warned.
41 void MSG_init_nocheck(int *argc, char **argv) {
43 TRACE_global_init(argc, argv);
45 xbt_getpid = MSG_process_self_PID;
48 msg_global = xbt_new0(s_MSG_Global_t, 1);
50 xbt_cfg_register_boolean("msg/debug-multiple-use", "no", _sg_cfg_cb_msg_debug_multiple_use,
51 "Print backtraces of both processes when there is a conflict of multiple use of a task");
53 SIMIX_global_init(argc, argv);
55 msg_global->sent_msg = 0;
56 msg_global->task_copy_callback = nullptr;
57 msg_global->process_data_cleanup = nullptr;
59 SIMIX_function_register_process_create(MSG_process_create_from_SIMIX);
60 SIMIX_function_register_process_cleanup(MSG_process_cleanup_from_SIMIX);
62 simgrid::surf::on_postparse.connect(MSG_post_create_environment);
63 simgrid::s4u::Host::onCreation.connect([](simgrid::s4u::Host& host) {
64 MSG_host_create_(&host);
66 MSG_HOST_LEVEL = simgrid::s4u::Host::extension_create([](void *p) {
67 __MSG_host_priv_free((msg_host_priv_t) p);
73 /* Ignore total amount of messages sent during the simulation for heap comparison */
74 MC_ignore_heap(&(msg_global->sent_msg), sizeof(msg_global->sent_msg));
77 XBT_DEBUG("ADD MSG LEVELS");
78 MSG_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, (void_f_pvoid_t) __MSG_storage_destroy);
79 MSG_FILE_LEVEL = xbt_lib_add_level(file_lib, (void_f_pvoid_t) __MSG_file_destroy);
80 if(xbt_cfg_get_boolean("clean-atexit")) atexit(MSG_exit);
83 /** \ingroup msg_simulation
84 * \brief Launch the MSG simulation
86 msg_error_t MSG_main(void)
88 /* Clean IO before the run */
100 /** \ingroup msg_simulation
101 * \brief set a configuration variable
103 * Do --help on any simgrid binary to see the list of currently existing configuration variables, and see Section @ref options.
106 * MSG_config("host/model","ptask_L07");
108 void MSG_config(const char *key, const char *value){
109 xbt_assert(msg_global,"ERROR: Please call MSG_init() before using MSG_config()");
110 xbt_cfg_set_as_string(key, value);
113 /** \ingroup msg_simulation
114 * \brief Kill all running process
116 * \param reset_PIDs should we reset the PID numbers. A negative
117 * number means no reset and a positive number will be used to set the PID
118 * of the next newly created process.
120 int MSG_process_killall(int reset_PIDs)
122 simcall_process_killall(reset_PIDs);
125 msg_global->session++;
131 static void MSG_exit(void) {
132 if (msg_global==nullptr)
135 TRACE_surf_resource_utilization_release();
138 msg_global = nullptr;
141 /** \ingroup msg_simulation
142 * \brief A clock (in second).
144 double MSG_get_clock(void)
146 return SIMIX_get_clock();
149 unsigned long int MSG_get_sent_msg()
151 return msg_global->sent_msg;