1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. 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 "msg_private.h"
8 #include "msg_mailbox.h"
10 #include "xbt/sysdep.h"
12 #include "xbt/virtu.h"
13 #include "xbt/ex.h" /* ex_backtrace_display */
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_kernel, msg,
16 "Logging specific to MSG (kernel)");
18 MSG_Global_t msg_global = NULL;
20 /********************************* MSG **************************************/
22 /** \ingroup msg_simulation
23 * \brief Initialize some MSG internal data.
25 void MSG_global_init_args(int *argc, char **argv)
27 MSG_global_init(argc, argv);
30 /** \ingroup msg_simulation
31 * \brief Initialize some MSG internal data.
33 void MSG_global_init(int *argc, char **argv)
36 TRACE_global_init(argc, argv);
39 xbt_getpid = MSG_process_self_PID;
41 SIMIX_global_init(argc, argv);
43 msg_global = xbt_new0(s_MSG_Global_t, 1);
45 #ifdef MSG_USE_DEPRECATED
46 msg_global->max_channel = 0;
49 msg_global->sent_msg = 0;
50 msg_global->task_copy_callback = NULL;
51 msg_global->process_data_cleanup = NULL;
53 /* initialization of the action module */
56 SIMIX_function_register_process_create(MSG_process_create_from_SIMIX);
57 SIMIX_function_register_process_cleanup(MSG_process_cleanup_from_SIMIX);
58 SIMIX_function_register_process_kill(MSG_process_kill_from_SIMIX);
64 XBT_DEBUG("ADD MSG LEVELS");
65 MSG_HOST_LEVEL = xbt_lib_add_level(host_lib, (void_f_pvoid_t) __MSG_host_destroy);
68 #ifdef MSG_USE_DEPRECATED
70 /* This deprecated function has to be called to fix the number of channel in the
71 simulation before creating any host. Indeed, each channel is
72 represented by a different mailbox on each #m_host_t. This
73 function can then be called only once. This function takes only one
75 * \param number the number of channel in the simulation. It has to be >0
77 MSG_error_t MSG_set_channel_number(int number)
79 XBT_WARN("DEPRECATED! Please use aliases instead");
80 xbt_assert((msg_global)
81 && (msg_global->max_channel == 0),
82 "Channel number already set!");
84 msg_global->max_channel = number;
89 /* This deprecated function has to be called once the number of channel is fixed. I can't
90 figure out a reason why anyone would like to call this function but nevermind.
91 * \return the number of channel in the simulation.
93 int MSG_get_channel_number(void)
95 XBT_WARN("DEPRECATED! Please use aliases instead");
96 xbt_assert((msg_global)
97 && (msg_global->max_channel != 0),
98 "Channel number not set yet!");
100 return msg_global->max_channel;
104 /** \ingroup msg_simulation
105 * \brief Launch the MSG simulation
107 MSG_error_t MSG_main(void)
109 /* Clean IO before the run */
122 MSG_error_t MSG_main_stateful(void)
124 /* Clean IO before the run */
129 MC_modelcheck_stateful();
138 MSG_error_t MSG_main_liveness(xbt_automaton_t a, char *prgm)
140 /* Clean IO before the run */
145 MC_modelcheck_liveness(a, prgm);
153 /** \ingroup msg_simulation
154 * \brief Kill all running process
156 * \param reset_PIDs should we reset the PID numbers. A negative
157 * number means no reset and a positive number will be used to set the PID
158 * of the next newly created process.
160 int MSG_process_killall(int reset_PIDs)
162 simcall_process_killall();
164 if (reset_PIDs > 0) {
165 msg_global->PID = reset_PIDs;
166 msg_global->session++;
169 return msg_global->PID;
173 /** \ingroup msg_simulation
174 * \brief Clean the MSG simulation
176 MSG_error_t MSG_clean(void)
178 XBT_DEBUG("Closing MSG");
181 TRACE_surf_release();
184 MSG_process_killall(0);
186 /* initialization of the action module */
202 /** \ingroup msg_easier_life
203 * \brief A clock (in second).
205 XBT_INLINE double MSG_get_clock(void)
207 return SIMIX_get_clock();
210 unsigned long int MSG_get_sent_msg()
212 return msg_global->sent_msg;