include/msg/msg.h

   1 /* Copyright (c) 2004-2012. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #ifndef MSG_H
   7 #define MSG_H
   8
   9 #include "xbt.h"
  10
  11 #include "msg/datatypes.h"
  12
  13 #include "simgrid/simix.h"
  14
  15 SG_BEGIN_DECL()
  16
  17 /** @brief Return code of most MSG functions
  18     @ingroup msg_simulation
  19     @{ */
  20 /* Keep these code as binary values: java bindings manipulate | of these values */
  21 typedef enum {
  22   MSG_OK = 0,                 /**< @brief Everything is right. Keep on going this way ! */
  23   MSG_TIMEOUT = 1,            /**< @brief nothing good happened before the timer you provided elapsed */
  24   MSG_TRANSFER_FAILURE = 2,   /**< @brief There has been a problem during you task
  25       transfer. Either the network is down or the remote host has been
  26       shutdown. */
  27   MSG_HOST_FAILURE = 4,       /**< @brief System shutdown. The host on which you are
  28       running has just been rebooted. Free your datastructures and
  29       return now !*/
  30   MSG_TASK_CANCELED = 8      /**< @brief Canceled task. This task has been canceled by somebody!*/
  31 } msg_error_t;
  32 /** @} */
  33
  34 /************************** Global ******************************************/
  35 XBT_PUBLIC(void) MSG_config(const char *name, ...);
  36 /** \ingroup msg_simulation
  37  *  \brief Initialize the MSG internal data.
  38  *  \hideinitializer
  39  *
  40  *  It also check that the link-time and compile-time versions of SimGrid do
  41  *  match, so you should use this version instead of the #MSG_init_nocheck
  42  *  function that does the same initializations, but without this check.
  43  *
  44  *  We allow to link against compiled versions that differ in the patch level.
  45  */
  46 #define MSG_init(argc,argv)  {                      \
  47           int ver_major,ver_minor,ver_patch;              \
  48           sg_version(&ver_major,&ver_minor,&ver_patch);   \
  49           if ((ver_major != SIMGRID_VERSION_MAJOR) ||     \
  50               (ver_minor != SIMGRID_VERSION_MINOR)) {     \
  51             fprintf(stderr,"FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, and then linked against SimGrid %d.%d.%d. Please fix this.\n", \
  52                 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH,ver_major,ver_minor,ver_patch);                          \
  53           }                                               \
  54           MSG_init_nocheck(argc,argv);                    \
  55         }
  56
  57 XBT_PUBLIC(void) MSG_init_nocheck(int *argc, char **argv);
  58 XBT_PUBLIC(msg_error_t) MSG_main(void);
  59 XBT_PUBLIC(msg_error_t) MSG_clean(void);
  60 XBT_PUBLIC(void) MSG_function_register(const char *name,
  61                                        xbt_main_func_t code);
  62 XBT_PUBLIC(void) MSG_function_register_default(xbt_main_func_t code);
  63 XBT_PUBLIC(xbt_main_func_t) MSG_get_registered_function(const char *name);
  64 XBT_PUBLIC(void) MSG_launch_application(const char *file);
  65 /*Bypass the parser */
  66 XBT_PUBLIC(void) MSG_set_function(const char *host_id,
  67                                   const char *function_name,
  68                                   xbt_dynar_t arguments);
  69
  70 XBT_PUBLIC(double) MSG_get_clock(void);
  71 XBT_PUBLIC(unsigned long int) MSG_get_sent_msg(void);
  72
  73
  74 /************************** File handling ***********************************/
  75 XBT_PUBLIC(double) MSG_file_read(void* ptr, size_t size, size_t nmemb, msg_file_t stream);
  76 XBT_PUBLIC(size_t) MSG_file_write(const void* ptr, size_t size, size_t nmemb, msg_file_t stream);
  77 XBT_PUBLIC(msg_file_t) MSG_file_open(const char* mount, const char* path, const char* mode);
  78 XBT_PUBLIC(int) MSG_file_close(msg_file_t fp);
  79 XBT_PUBLIC(int) MSG_file_stat(msg_file_t fd, s_msg_stat_t *buf);
  80
  81
  82 /************************** Host handling ***********************************/
  83 XBT_PUBLIC(msg_error_t) MSG_host_set_data(msg_host_t host, void *data);
  84 XBT_PUBLIC(void *) MSG_host_get_data(msg_host_t host);
  85 XBT_PUBLIC(const char *) MSG_host_get_name(msg_host_t host);
  86 XBT_PUBLIC(msg_host_t) MSG_host_self(void);
  87 XBT_PUBLIC(int) MSG_get_host_msgload(msg_host_t host);
  88 /* int MSG_get_msgload(void); This function lacks specification; discard it */
  89 XBT_PUBLIC(double) MSG_get_host_speed(msg_host_t h);
  90 XBT_PUBLIC(int) MSG_host_is_avail(msg_host_t h);
  91 XBT_PUBLIC(void) __MSG_host_destroy(msg_host_t host);
  92
  93 /*property handlers*/
  94 XBT_PUBLIC(xbt_dict_t) MSG_host_get_properties(msg_host_t host);
  95 XBT_PUBLIC(const char *) MSG_host_get_property_value(msg_host_t host,
  96                                                      const char *name);
  97 XBT_PUBLIC(void) MSG_host_set_property_value(msg_host_t host,
  98                                              const char *name, char *value,
  99                                              void_f_pvoid_t free_ctn);
 100
 101
 102 XBT_PUBLIC(void) MSG_create_environment(const char *file);
 103 XBT_PUBLIC(void) MSG_load_platform_script(const char *script_file);
 104
 105 XBT_PUBLIC(msg_host_t) MSG_get_host_by_name(const char *name);
 106 XBT_PUBLIC(xbt_dynar_t) MSG_hosts_as_dynar(void);
 107
 108 /************************** Process handling *********************************/
 109 XBT_PUBLIC(msg_process_t) MSG_process_create(const char *name,
 110                                            xbt_main_func_t code,
 111                                            void *data, msg_host_t host);
 112 XBT_PUBLIC(msg_process_t) MSG_process_create_with_arguments(const char *name,
 113                                                           xbt_main_func_t
 114                                                           code, void *data,
 115                                                           msg_host_t host,
 116                                                           int argc,
 117                                                           char **argv);
 118 XBT_PUBLIC(msg_process_t) MSG_process_create_with_environment(const char
 119                                                             *name,
 120                                                             xbt_main_func_t
 121                                                             code,
 122                                                             void *data,
 123                                                             msg_host_t host,
 124                                                             int argc,
 125                                                             char **argv,
 126                                                             xbt_dict_t
 127                                                             properties);
 128 XBT_PUBLIC(void) MSG_process_kill(msg_process_t process);
 129 XBT_PUBLIC(int) MSG_process_killall(int reset_PIDs);
 130
 131 XBT_PUBLIC(msg_error_t) MSG_process_migrate(msg_process_t process, msg_host_t host);
 132
 133 XBT_PUBLIC(void *) MSG_process_get_data(msg_process_t process);
 134 XBT_PUBLIC(msg_error_t) MSG_process_set_data(msg_process_t process,
 135                                              void *data);
 136 XBT_PUBLIC(void) MSG_process_set_data_cleanup(void_f_pvoid_t data_cleanup);
 137 XBT_PUBLIC(msg_host_t) MSG_process_get_host(msg_process_t process);
 138 XBT_PUBLIC(msg_process_t) MSG_process_from_PID(int PID);
 139 XBT_PUBLIC(int) MSG_process_get_PID(msg_process_t process);
 140 XBT_PUBLIC(int) MSG_process_get_PPID(msg_process_t process);
 141 XBT_PUBLIC(const char *) MSG_process_get_name(msg_process_t process);
 142 XBT_PUBLIC(int) MSG_process_self_PID(void);
 143 XBT_PUBLIC(int) MSG_process_self_PPID(void);
 144 XBT_PUBLIC(msg_process_t) MSG_process_self(void);
 145 XBT_PUBLIC(xbt_dynar_t) MSG_processes_as_dynar(void);
 146 XBT_PUBLIC(msg_error_t) MSG_process_set_kill_time(msg_process_t process, double kill_time);
 147
 148 /*property handlers*/
 149 XBT_PUBLIC(xbt_dict_t) MSG_process_get_properties(msg_process_t process);
 150 XBT_PUBLIC(const char *) MSG_process_get_property_value(msg_process_t
 151                                                         process,
 152                                                         const char *name);
 153
 154 XBT_PUBLIC(msg_error_t) MSG_process_suspend(msg_process_t process);
 155 XBT_PUBLIC(msg_error_t) MSG_process_resume(msg_process_t process);
 156 XBT_PUBLIC(int) MSG_process_is_suspended(msg_process_t process);
 157 XBT_PUBLIC(void) MSG_process_on_exit(int_f_pvoid_t fun, void *data);
 158 XBT_PUBLIC(void) MSG_process_auto_restart_set(msg_process_t process, int auto_restart);
 159
 160 XBT_PUBLIC(msg_process_t) MSG_process_restart(msg_process_t process);
 161
 162 /************************** Task handling ************************************/
 163 XBT_PUBLIC(msg_task_t) MSG_task_create(const char *name,
 164                                      double compute_duration,
 165                                      double message_size, void *data);
 166 XBT_PUBLIC(msg_gpu_task_t) MSG_gpu_task_create(const char *name,
 167                                      double compute_duration,
 168                                      double dispatch_latency,
 169                                      double collect_latency);
 170 XBT_PUBLIC(msg_task_t) MSG_parallel_task_create(const char *name,
 171                                               int host_nb,
 172                                               const msg_host_t * host_list,
 173                                               double *computation_amount,
 174                                               double *communication_amount,
 175                                               void *data);
 176 XBT_PUBLIC(void *) MSG_task_get_data(msg_task_t task);
 177 XBT_PUBLIC(void) MSG_task_set_data(msg_task_t task, void *data);
 178 XBT_PUBLIC(void) MSG_task_set_copy_callback(void (*callback) (
 179     msg_task_t task, msg_process_t src, msg_process_t dst));
 180 XBT_PUBLIC(msg_process_t) MSG_task_get_sender(msg_task_t task);
 181 XBT_PUBLIC(msg_host_t) MSG_task_get_source(msg_task_t task);
 182 XBT_PUBLIC(const char *) MSG_task_get_name(msg_task_t task);
 183 XBT_PUBLIC(void) MSG_task_set_name(msg_task_t task, const char *name);
 184 XBT_PUBLIC(msg_error_t) MSG_task_cancel(msg_task_t task);
 185 XBT_PUBLIC(msg_error_t) MSG_task_destroy(msg_task_t task);
 186
 187 XBT_PUBLIC(msg_error_t) MSG_task_receive_from_host(msg_task_t * task, const char *alias,
 188                                        msg_host_t host);
 189
 190 XBT_PUBLIC(msg_error_t) MSG_task_execute(msg_task_t task);
 191 XBT_PUBLIC(msg_error_t) MSG_parallel_task_execute(msg_task_t task);
 192 XBT_PUBLIC(void) MSG_task_set_priority(msg_task_t task, double priority);
 193
 194 XBT_PUBLIC(msg_error_t) MSG_process_sleep(double nb_sec);
 195
 196 XBT_PUBLIC(double) MSG_task_get_compute_duration(msg_task_t task);
 197 XBT_PUBLIC(void) MSG_task_set_compute_duration(msg_task_t task,
 198                                                double compute_duration);
 199 XBT_PUBLIC(double) MSG_task_get_remaining_computation(msg_task_t task);
 200 XBT_PUBLIC(double) MSG_task_get_remaining_communication(msg_task_t task);
 201 XBT_PUBLIC(int) MSG_task_is_latency_bounded(msg_task_t task);
 202 XBT_PUBLIC(double) MSG_task_get_data_size(msg_task_t task);
 203
 204
 205 XBT_PUBLIC(msg_error_t)
 206     MSG_task_receive_ext(msg_task_t * task, const char *alias, double timeout,
 207                      msg_host_t host);
 208
 209 XBT_PUBLIC(msg_error_t)
 210     MSG_task_receive_with_timeout(msg_task_t * task, const char *alias,
 211                               double timeout);
 212
 213 XBT_PUBLIC(msg_error_t)
 214     MSG_task_receive(msg_task_t * task, const char *alias);
 215 #define MSG_task_recv(t,a) MSG_task_receive(t,a)
 216
 217 XBT_PUBLIC(msg_comm_t) MSG_task_isend(msg_task_t task, const char *alias);
 218 XBT_PUBLIC(msg_comm_t) MSG_task_isend_with_matching(msg_task_t task,
 219                                                     const char *alias,
 220                                                     int (*match_fun)(void*,void*, smx_action_t),
 221                                                     void *match_data);
 222
 223 XBT_PUBLIC(void) MSG_task_dsend(msg_task_t task, const char *alias, void_f_pvoid_t cleanup);
 224 XBT_PUBLIC(msg_comm_t) MSG_task_irecv(msg_task_t * task, const char *alias);
 225 XBT_PUBLIC(int) MSG_comm_test(msg_comm_t comm);
 226 XBT_PUBLIC(int) MSG_comm_testany(xbt_dynar_t comms);
 227 XBT_PUBLIC(void) MSG_comm_destroy(msg_comm_t comm);
 228 XBT_PUBLIC(msg_error_t) MSG_comm_wait(msg_comm_t comm, double timeout);
 229 XBT_PUBLIC(void) MSG_comm_waitall(msg_comm_t * comm, int nb_elem,
 230                                   double timeout);
 231 XBT_PUBLIC(int) MSG_comm_waitany(xbt_dynar_t comms);
 232 XBT_PUBLIC(msg_task_t) MSG_comm_get_task(msg_comm_t comm);
 233 XBT_PUBLIC(msg_error_t) MSG_comm_get_status(msg_comm_t comm);
 234
 235 XBT_PUBLIC(int) MSG_task_listen(const char *alias);
 236
 237 XBT_PUBLIC(int) MSG_task_listen_from_host(const char *alias,
 238                                           msg_host_t host);
 239
 240 XBT_PUBLIC(msg_error_t)
 241     MSG_task_send_with_timeout(msg_task_t task, const char *alias,
 242                            double timeout);
 243
 244 XBT_PUBLIC(msg_error_t)
 245     MSG_task_send(msg_task_t task, const char *alias);
 246
 247 XBT_PUBLIC(msg_error_t)
 248     MSG_task_send_bounded(msg_task_t task, const char *alias, double rate);
 249
 250 XBT_PUBLIC(int) MSG_task_listen_from(const char *alias);
 251
 252 XBT_PUBLIC(void) MSG_task_set_category (msg_task_t task, const char *category);
 253 XBT_PUBLIC(const char *) MSG_task_get_category (msg_task_t task);
 254
 255 /************************** Task handling ************************************/
 256 XBT_PUBLIC(msg_error_t)
 257     MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, msg_task_t * task,
 258                          msg_host_t host, double timeout);
 259
 260 XBT_PUBLIC(msg_error_t)
 261     MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, msg_task_t task,
 262                              double timeout);
 263
 264 /************************** Action handling **********************************/
 265 msg_error_t MSG_action_trace_run(char *path);
 266
 267 #ifdef MSG_USE_DEPRECATED
 268
 269 typedef msg_error_t MSG_error_t;
 270
 271 #define MSG_global_init(argc, argv)      MSG_init(argc,argv)
 272 #define MSG_global_init_args(argc, argv) MSG_init(argc,argv)
 273
 274 /* these are the functions which are deprecated. Do not use them, they may get removed in future releases */
 275 XBT_PUBLIC(int) MSG_get_host_number(void);
 276 XBT_PUBLIC(msg_host_t *) MSG_get_host_table(void);
 277
 278 #define MSG_TIMEOUT_FAILURE MSG_TIMEOUT
 279 #define MSG_TASK_CANCELLED MSG_TASK_CANCELED
 280 #define MSG_mailbox_put_with_time_out(mailbox, task, timeout) \
 281         MSG_mailbox_put_with_timeout(mailbox, task, timeout)
 282
 283 #define MSG_process_change_host(h) MSG_process_migrate(MSG_process_self(),h);
 284 XBT_PUBLIC(msg_error_t) MSG_get_errno(void);
 285
 286 XBT_PUBLIC(msg_error_t) MSG_task_get(msg_task_t * task, m_channel_t channel);
 287 XBT_PUBLIC(msg_error_t) MSG_task_get_with_timeout(msg_task_t * task,
 288                                                   m_channel_t channel,
 289                                                   double max_duration);
 290 XBT_PUBLIC(msg_error_t) MSG_task_get_from_host(msg_task_t * task,
 291                                                int channel, msg_host_t host);
 292 XBT_PUBLIC(msg_error_t) MSG_task_get_ext(msg_task_t * task, int channel,
 293                                          double max_duration,
 294                                          msg_host_t host);
 295 XBT_PUBLIC(msg_error_t) MSG_task_put(msg_task_t task, msg_host_t dest,
 296                                      m_channel_t channel);
 297 XBT_PUBLIC(msg_error_t) MSG_task_put_bounded(msg_task_t task,
 298                                              msg_host_t dest,
 299                                              m_channel_t channel,
 300                                              double max_rate);
 301 XBT_PUBLIC(msg_error_t) MSG_task_put_with_timeout(msg_task_t task,
 302                                                   msg_host_t dest,
 303                                                   m_channel_t channel,
 304                                                   double max_duration);
 305 XBT_PUBLIC(int) MSG_task_Iprobe(m_channel_t channel);
 306 XBT_PUBLIC(int) MSG_task_probe_from(m_channel_t channel);
 307 XBT_PUBLIC(int) MSG_task_probe_from_host(int channel, msg_host_t host);
 308
 309 XBT_PUBLIC(msg_error_t) MSG_set_channel_number(int number);
 310 XBT_PUBLIC(int) MSG_get_channel_number(void);
 311 #endif
 312
 313 #include "instr/instr.h"
 314
 315 /** @brief Opaque type describing a Virtual Machine.
 316  *  @ingroup msg_VMs
 317  *
 318  * All this is highly experimental and the interface will probably change in the future.
 319  * Please don't depend on this yet (although testing is welcomed if you feel so).
 320  * Usual lack of guaranty of any kind applies here, and is even increased.
 321  *
 322  */
 323 typedef struct msg_vm *msg_vm_t;
 324 /* This function should not be called directly, but rather from MSG_vm_start_from_template that does not exist yet*/
 325 XBT_PUBLIC(msg_vm_t) MSG_vm_start(msg_host_t location, int coreAmount);
 326
 327 XBT_PUBLIC(int) MSG_vm_is_suspended(msg_vm_t);
 328 XBT_PUBLIC(int) MSG_vm_is_running(msg_vm_t);
 329
 330 XBT_PUBLIC(void) MSG_vm_bind(msg_vm_t vm, msg_process_t process);
 331 XBT_PUBLIC(void) MSG_vm_unbind(msg_vm_t vm, msg_process_t process); // simple wrapper over process_kill
 332
 333 XBT_PUBLIC(void) MSG_vm_migrate(msg_vm_t vm, msg_host_t destination);
 334
 335 XBT_PUBLIC(void) MSG_vm_suspend(msg_vm_t vm);
 336   // \forall p in VM, MSG_process_suspend(p) // Freeze the processes
 337
 338 XBT_PUBLIC(void) MSG_vm_resume(msg_vm_t vm);  // Simulate the fact of reading the processes from disk and resuming them
 339   // \forall p in VM, MSG_process_resume(p) // unfreeze them
 340
 341 XBT_PUBLIC(void) MSG_vm_shutdown(msg_vm_t vm); // killall
 342
 343 XBT_PUBLIC(void) MSG_vm_reboot(msg_vm_t vm);
 344
 345 XBT_PUBLIC(void) MSG_vm_destroy(msg_vm_t vm);
 346
 347 XBT_PUBLIC(xbt_dynar_t) MSG_vms_as_dynar(void);
 348
 349 /*
 350 void* MSG_process_get_property(msg_process_t, char* key)
 351 void MSG_process_set_property(msg_process_t, char* key, void* data)
 352 void MSG_vm_set_property(msg_vm_t, char* key, void* data)
 353
 354 void MSG_vm_setMemoryUsed(msg_vm_t vm, double size);
 355 void MSG_vm_setCpuUsed(msg_vm_t vm, double inducedLoad);
 356   // inducedLoad: un pourcentage (>100 si ca charge plus d'un coeur;
 357   //                              <100 si c'est pas CPU intensive)
 358   // Contraintes à poser:
 359   //   HOST_Power >= CpuUsedVm (\forall VM) + CpuUsedTask (\forall Task)
 360   //   VM_coreAmount >= Load de toutes les tasks
 361 */
 362
 363   /*
 364 xbt_dynar_t<msg_vm_t> MSG_vm_get_list_from_host(msg_host_t)
 365 xbt_dynar_t<msg_vm_t> MSG_vm_get_list_from_hosts(msg_dynar_t<msg_host_t>)
 366 + des fonctions de filtrage sur les dynar
 367 */
 368
 369
 370 /* ****************************************************************************************** */
 371 /* Used only by the bindings -- unclean pimple, please ignore if you're not writing a binding */
 372 XBT_PUBLIC(smx_context_t) MSG_process_get_smx_ctx(msg_process_t process);
 373
 374 SG_END_DECL()
 375 #endif