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 /* @brief Initialize MSG with less verifications
26 * You should use the MSG_init() function instead. Failing to do so may turn into PEBKAC some day. You've been warned.
28 void MSG_init_nocheck(int *argc, char **argv) {
31 TRACE_global_init(argc, argv);
34 xbt_getpid = MSG_process_self_PID;
36 s_msg_vm_t vm; // to compute the offset
38 SIMIX_global_init(argc, argv);
40 msg_global = xbt_new0(s_MSG_Global_t, 1);
42 #ifdef MSG_USE_DEPRECATED
43 msg_global->max_channel = 0;
46 msg_global->sent_msg = 0;
47 msg_global->task_copy_callback = NULL;
48 msg_global->process_data_cleanup = NULL;
49 msg_global->vms = xbt_swag_new(xbt_swag_offset(vm,all_vms_hookup));
51 /* initialization of the action module */
54 SIMIX_function_register_process_create(MSG_process_create_from_SIMIX);
55 SIMIX_function_register_process_cleanup(MSG_process_cleanup_from_SIMIX);
56 SIMIX_function_register_process_kill(MSG_process_kill_from_SIMIX);
62 XBT_DEBUG("ADD MSG LEVELS");
63 MSG_HOST_LEVEL = xbt_lib_add_level(host_lib, (void_f_pvoid_t) __MSG_host_destroy);
66 #ifdef MSG_USE_DEPRECATED
68 /* This deprecated function has to be called to fix the number of channel in the
69 simulation before creating any host. Indeed, each channel is
70 represented by a different mailbox on each #m_host_t. This
71 function can then be called only once. This function takes only one
73 * \param number the number of channel in the simulation. It has to be >0
75 MSG_error_t MSG_set_channel_number(int number)
77 XBT_WARN("DEPRECATED! Please use aliases instead");
78 xbt_assert((msg_global)
79 && (msg_global->max_channel == 0),
80 "Channel number already set!");
82 msg_global->max_channel = number;
87 /* This deprecated function has to be called once the number of channel is fixed. I can't
88 figure out a reason why anyone would like to call this function but nevermind.
89 * \return the number of channel in the simulation.
91 int MSG_get_channel_number(void)
93 XBT_WARN("DEPRECATED! Please use aliases instead");
94 xbt_assert((msg_global)
95 && (msg_global->max_channel != 0),
96 "Channel number not set yet!");
98 return msg_global->max_channel;
102 /** \ingroup msg_simulation
103 * \brief Launch the MSG simulation
105 MSG_error_t MSG_main(void)
107 /* Clean IO before the run */
121 MSG_error_t MSG_main_liveness()
123 /* Clean IO before the run */
128 MC_modelcheck_liveness();
136 /** \ingroup msg_simulation
137 * \brief Kill all running process
139 * \param reset_PIDs should we reset the PID numbers. A negative
140 * number means no reset and a positive number will be used to set the PID
141 * of the next newly created process.
143 int MSG_process_killall(int reset_PIDs)
145 simcall_process_killall();
147 if (reset_PIDs > 0) {
148 msg_global->PID = reset_PIDs;
149 msg_global->session++;
152 return msg_global->PID;
156 /** \ingroup msg_simulation
157 * \brief Clean the MSG simulation
159 MSG_error_t MSG_clean(void)
161 XBT_DEBUG("Closing MSG");
164 TRACE_surf_release();
167 MSG_process_killall(0);
169 /* initialization of the action module */
178 xbt_swag_free(msg_global->vms);
186 /** \ingroup msg_simulation
187 * \brief A clock (in second).
189 XBT_INLINE double MSG_get_clock(void)
191 return SIMIX_get_clock();
194 unsigned long int MSG_get_sent_msg()
196 return msg_global->sent_msg;