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 */
14 #include "xbt/replay.h"
16 XBT_LOG_NEW_CATEGORY(msg, "All MSG categories");
17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_kernel, msg,
18 "Logging specific to MSG (kernel)");
20 MSG_Global_t msg_global = NULL;
22 /********************************* MSG **************************************/
24 /** \ingroup msg_simulation
25 * \brief Initialize some MSG internal data.
27 void MSG_global_init_args(int *argc, char **argv)
29 MSG_global_init(argc, argv);
32 /** \ingroup msg_simulation
33 * \brief Initialize some MSG internal data.
35 void MSG_global_init(int *argc, char **argv)
38 TRACE_global_init(argc, argv);
41 xbt_getpid = MSG_process_self_PID;
43 s_msg_vm_t vm; // to compute the offset
45 SIMIX_global_init(argc, argv);
47 msg_global = xbt_new0(s_MSG_Global_t, 1);
49 #ifdef MSG_USE_DEPRECATED
50 msg_global->max_channel = 0;
53 msg_global->sent_msg = 0;
54 msg_global->task_copy_callback = NULL;
55 msg_global->process_data_cleanup = NULL;
56 msg_global->vms = xbt_swag_new(xbt_swag_offset(vm,all_vms_hookup));
58 /* initialization of the action module */
61 SIMIX_function_register_process_create(MSG_process_create_from_SIMIX);
62 SIMIX_function_register_process_cleanup(MSG_process_cleanup_from_SIMIX);
63 SIMIX_function_register_process_kill(MSG_process_kill_from_SIMIX);
69 XBT_DEBUG("ADD MSG LEVELS");
70 MSG_HOST_LEVEL = xbt_lib_add_level(host_lib, (void_f_pvoid_t) __MSG_host_destroy);
74 #ifdef MSG_USE_DEPRECATED
76 /* This deprecated function has to be called to fix the number of channel in the
77 simulation before creating any host. Indeed, each channel is
78 represented by a different mailbox on each #m_host_t. This
79 function can then be called only once. This function takes only one
81 * \param number the number of channel in the simulation. It has to be >0
83 MSG_error_t MSG_set_channel_number(int number)
85 XBT_WARN("DEPRECATED! Please use aliases instead");
86 xbt_assert((msg_global)
87 && (msg_global->max_channel == 0),
88 "Channel number already set!");
90 msg_global->max_channel = number;
95 /* This deprecated function has to be called once the number of channel is fixed. I can't
96 figure out a reason why anyone would like to call this function but nevermind.
97 * \return the number of channel in the simulation.
99 int MSG_get_channel_number(void)
101 XBT_WARN("DEPRECATED! Please use aliases instead");
102 xbt_assert((msg_global)
103 && (msg_global->max_channel != 0),
104 "Channel number not set yet!");
106 return msg_global->max_channel;
110 /** \ingroup msg_simulation
111 * \brief Launch the MSG simulation
113 MSG_error_t MSG_main(void)
115 /* Clean IO before the run */
128 MSG_error_t MSG_main_stateful(void)
130 /* Clean IO before the run */
135 MC_modelcheck_stateful();
144 MSG_error_t MSG_main_liveness(xbt_automaton_t a)
146 /* Clean IO before the run */
151 MC_modelcheck_liveness(a);
159 /** \ingroup msg_simulation
160 * \brief Kill all running process
162 * \param reset_PIDs should we reset the PID numbers. A negative
163 * number means no reset and a positive number will be used to set the PID
164 * of the next newly created process.
166 int MSG_process_killall(int reset_PIDs)
168 simcall_process_killall();
170 if (reset_PIDs > 0) {
171 msg_global->PID = reset_PIDs;
172 msg_global->session++;
175 return msg_global->PID;
179 /** \ingroup msg_simulation
180 * \brief Clean the MSG simulation
182 MSG_error_t MSG_clean(void)
184 XBT_DEBUG("Closing MSG");
187 TRACE_surf_release();
190 MSG_process_killall(0);
192 /* initialization of the action module */
201 xbt_swag_free(msg_global->vms);
209 /** \ingroup msg_simulation
210 * \brief A clock (in second).
212 XBT_INLINE double MSG_get_clock(void)
214 return SIMIX_get_clock();
217 unsigned long int MSG_get_sent_msg()
219 return msg_global->sent_msg;