src/simix/smx_io.c

   1 /* Copyright (c) 2007-2010, 2012-2013. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   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. */
   6
   7 #include "smx_private.h"
   8 #include "surf/storage_private.h"
   9 #include "xbt/sysdep.h"
  10 #include "xbt/log.h"
  11 #include "xbt/dict.h"
  12 #include "mc/mc.h"
  13
  14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix,
  15                                 "Logging specific to SIMIX (io)");
  16
  17
  18 /**
  19  * \brief Internal function to create a SIMIX storage.
  20  * \param name name of the storage to create
  21  * \param storage the SURF storage to encapsulate
  22  * \param data some user data (may be NULL)
  23  */
  24 smx_storage_t SIMIX_storage_create(const char *name, void *storage, void *data)
  25 {
  26   smx_storage_priv_t smx_storage = xbt_new0(s_smx_storage_priv_t, 1);
  27
  28   smx_storage->data = data;
  29
  30   /* Update global variables */
  31   xbt_lib_set(storage_lib,name,SIMIX_STORAGE_LEVEL,smx_storage);
  32
  33   return xbt_lib_get_or_null(storage_lib, name, SIMIX_STORAGE_LEVEL);
  34 }
  35
  36
  37 void* SIMIX_pre_file_get_data(smx_simcall_t simcall,smx_file_t fd){
  38   return SIMIX_file_get_data(fd);
  39 }
  40
  41 void* SIMIX_file_get_data(smx_file_t fd){
  42   xbt_assert((fd != NULL), "Invalid parameters (simix file is NULL)");
  43
  44   return fd->data;
  45 }
  46
  47 void SIMIX_pre_file_set_data(smx_simcall_t simcall, smx_file_t fd, void *data) {
  48   SIMIX_file_set_data(fd, data);
  49 }
  50
  51 void SIMIX_file_set_data(smx_file_t fd, void *data){
  52   xbt_assert((fd != NULL), "Invalid parameter");
  53
  54   fd->data = data;
  55 }
  56
  57 //SIMIX FILE READ
  58 void SIMIX_pre_file_read(smx_simcall_t simcall, sg_storage_size_t size,
  59                         smx_file_t fd)
  60 {
  61   smx_action_t action = SIMIX_file_read(simcall->issuer, size, fd);
  62   xbt_fifo_push(action->simcalls, simcall);
  63   simcall->issuer->waiting_action = action;
  64 }
  65
  66 smx_action_t SIMIX_file_read(smx_process_t process, sg_storage_size_t size,
  67                              smx_file_t fd)
  68 {
  69   smx_action_t action;
  70   smx_host_t host = process->smx_host;
  71
  72   /* check if the host is active */
  73   if (surf_workstation_model->extension.
  74       workstation.get_state(host) != SURF_RESOURCE_ON) {
  75     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
  76            sg_host_name(host));
  77   }
  78
  79   action = xbt_mallocator_get(simix_global->action_mallocator);
  80   action->type = SIMIX_ACTION_IO;
  81   action->name = NULL;
  82 #ifdef HAVE_TRACING
  83   action->category = NULL;
  84 #endif
  85
  86   action->io.host = host;
  87   action->io.surf_io =
  88       surf_workstation_model->extension.workstation.read(host, size,
  89                                                          fd->surf_file);
  90
  91   surf_workstation_model->action_data_set(action->io.surf_io, action);
  92   XBT_DEBUG("Create io action %p", action);
  93
  94   return action;
  95 }
  96
  97 //SIMIX FILE WRITE
  98 void SIMIX_pre_file_write(smx_simcall_t simcall, sg_storage_size_t size,
  99                           smx_file_t fd)
 100 {
 101   smx_action_t action = SIMIX_file_write(simcall->issuer, size, fd);
 102   xbt_fifo_push(action->simcalls, simcall);
 103   simcall->issuer->waiting_action = action;
 104 }
 105
 106 smx_action_t SIMIX_file_write(smx_process_t process,
 107                 sg_storage_size_t size, smx_file_t fd)
 108 {
 109   smx_action_t action;
 110   smx_host_t host = process->smx_host;
 111
 112   /* check if the host is active */
 113   if (surf_workstation_model->extension.
 114       workstation.get_state(host) != SURF_RESOURCE_ON) {
 115     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 116            sg_host_name(host));
 117   }
 118
 119   action = xbt_mallocator_get(simix_global->action_mallocator);
 120   action->type = SIMIX_ACTION_IO;
 121   action->name = NULL;
 122 #ifdef HAVE_TRACING
 123   action->category = NULL;
 124 #endif
 125
 126   action->io.host = host;
 127   action->io.surf_io =
 128       surf_workstation_model->extension.workstation.write(host, size,
 129                                                           fd->surf_file);
 130
 131   surf_workstation_model->action_data_set(action->io.surf_io, action);
 132   XBT_DEBUG("Create io action %p", action);
 133
 134   return action;
 135 }
 136
 137 //SIMIX FILE OPEN
 138 void SIMIX_pre_file_open(smx_simcall_t simcall, const char* mount,
 139                          const char* path)
 140 {
 141   smx_action_t action = SIMIX_file_open(simcall->issuer, mount, path);
 142   xbt_fifo_push(action->simcalls, simcall);
 143   simcall->issuer->waiting_action = action;
 144 }
 145
 146 smx_action_t SIMIX_file_open(smx_process_t process ,const char* mount,
 147                              const char* path)
 148 {
 149   smx_action_t action;
 150   smx_host_t host = process->smx_host;
 151
 152   /* check if the host is active */
 153   if (surf_workstation_model->extension.
 154       workstation.get_state(host) != SURF_RESOURCE_ON) {
 155     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 156            sg_host_name(host));
 157   }
 158
 159   action = xbt_mallocator_get(simix_global->action_mallocator);
 160   action->type = SIMIX_ACTION_IO;
 161   action->name = NULL;
 162 #ifdef HAVE_TRACING
 163   action->category = NULL;
 164 #endif
 165
 166   action->io.host = host;
 167   action->io.surf_io =
 168       surf_workstation_model->extension.workstation.open(host, mount, path);
 169
 170   surf_workstation_model->action_data_set(action->io.surf_io, action);
 171   XBT_DEBUG("Create io action %p", action);
 172
 173   return action;
 174 }
 175
 176 //SIMIX FILE CLOSE
 177 void SIMIX_pre_file_close(smx_simcall_t simcall, smx_file_t fd)
 178 {
 179   smx_action_t action = SIMIX_file_close(simcall->issuer, fd);
 180   xbt_fifo_push(action->simcalls, simcall);
 181   simcall->issuer->waiting_action = action;
 182 }
 183
 184 smx_action_t SIMIX_file_close(smx_process_t process, smx_file_t fd)
 185 {
 186   smx_action_t action;
 187   smx_host_t host = process->smx_host;
 188
 189   /* check if the host is active */
 190   if (surf_workstation_model->extension.
 191       workstation.get_state(host) != SURF_RESOURCE_ON) {
 192     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 193            sg_host_name(host));
 194   }
 195
 196   action = xbt_mallocator_get(simix_global->action_mallocator);
 197   action->type = SIMIX_ACTION_IO;
 198   action->name = NULL;
 199 #ifdef HAVE_TRACING
 200   action->category = NULL;
 201 #endif
 202
 203   action->io.host = host;
 204   action->io.surf_io = surf_workstation_model->extension.workstation.close(host, fd->surf_file);
 205
 206   surf_workstation_model->action_data_set(action->io.surf_io, action);
 207   XBT_DEBUG("Create io action %p", action);
 208
 209   return action;
 210 }
 211
 212
 213 //SIMIX FILE UNLINK
 214 int SIMIX_pre_file_unlink(smx_simcall_t simcall, smx_file_t fd)
 215 {
 216   return SIMIX_file_unlink(simcall->issuer, fd);
 217 }
 218
 219 int SIMIX_file_unlink(smx_process_t process, smx_file_t fd)
 220 {
 221   smx_host_t host = process->smx_host;
 222   /* check if the host is active */
 223   if (surf_workstation_model->extension.
 224       workstation.get_state(host) != SURF_RESOURCE_ON) {
 225     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 226            sg_host_name(host));
 227   }
 228
 229   if (surf_workstation_model->extension.workstation.unlink(host, fd->surf_file)){
 230     fd->surf_file = NULL;
 231     return 1;
 232   } else
 233     return 0;
 234 }
 235
 236 //SIMIX FILE LS
 237 void SIMIX_pre_file_ls(smx_simcall_t simcall,
 238                        const char* mount, const char* path)
 239 {
 240   smx_action_t action = SIMIX_file_ls(simcall->issuer, mount, path);
 241   xbt_fifo_push(action->simcalls, simcall);
 242   simcall->issuer->waiting_action = action;
 243 }
 244 smx_action_t SIMIX_file_ls(smx_process_t process, const char* mount, const char *path)
 245 {
 246   smx_action_t action;
 247   smx_host_t host = process->smx_host;
 248   /* check if the host is active */
 249   if (surf_workstation_model->extension.workstation.get_state(host) != SURF_RESOURCE_ON) {
 250     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 251            sg_host_name(host));
 252   }
 253
 254   action = xbt_mallocator_get(simix_global->action_mallocator);
 255   action->type = SIMIX_ACTION_IO;
 256   action->name = NULL;
 257 #ifdef HAVE_TRACING
 258   action->category = NULL;
 259 #endif
 260
 261   action->io.host = host;
 262   action->io.surf_io = surf_workstation_model->extension.workstation.ls(host,mount,path);
 263
 264   surf_workstation_model->action_data_set(action->io.surf_io, action);
 265   XBT_DEBUG("Create io action %p", action);
 266   return action;
 267 }
 268
 269 sg_storage_size_t SIMIX_pre_file_get_size(smx_simcall_t simcall, smx_file_t fd)
 270 {
 271   return SIMIX_file_get_size(simcall->issuer, fd);
 272 }
 273
 274 sg_storage_size_t SIMIX_file_get_size(smx_process_t process, smx_file_t fd)
 275 {
 276   smx_host_t host = process->smx_host;
 277   return  surf_workstation_model->extension.workstation.get_size(host,
 278       fd->surf_file);
 279 }
 280
 281 xbt_dynar_t SIMIX_pre_file_get_info(smx_simcall_t simcall, smx_file_t fd)
 282 {
 283   return SIMIX_file_get_info(simcall->issuer, fd);
 284 }
 285
 286 xbt_dynar_t SIMIX_file_get_info(smx_process_t process, smx_file_t fd)
 287 {
 288   smx_host_t host = process->smx_host;
 289   return  surf_workstation_model->extension.workstation.get_info(host,
 290       fd->surf_file);
 291 }
 292
 293 sg_storage_size_t SIMIX_pre_storage_get_free_size(smx_simcall_t simcall, const char* name)
 294 {
 295   return SIMIX_storage_get_free_size(simcall->issuer, name);
 296 }
 297
 298 sg_storage_size_t SIMIX_storage_get_free_size(smx_process_t process, const char* name)
 299 {
 300   smx_host_t host = process->smx_host;
 301   return  surf_workstation_model->extension.workstation.get_free_size(host,name);
 302 }
 303
 304 sg_storage_size_t SIMIX_pre_storage_get_used_size(smx_simcall_t simcall, const char* name)
 305 {
 306   return SIMIX_storage_get_used_size(simcall->issuer, name);
 307 }
 308
 309 sg_storage_size_t SIMIX_storage_get_used_size(smx_process_t process, const char* name)
 310 {
 311   smx_host_t host = process->smx_host;
 312   return  surf_workstation_model->extension.workstation.get_used_size(host,name);
 313 }
 314
 315 xbt_dict_t SIMIX_pre_storage_get_properties(smx_simcall_t simcall, smx_storage_t storage){
 316   return SIMIX_storage_get_properties(storage);
 317 }
 318 xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage){
 319   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 320   return surf_storage_model->extension.storage.get_properties(storage);
 321 }
 322
 323 const char* SIMIX_pre_storage_get_name(smx_simcall_t simcall, smx_storage_t storage){
 324    return SIMIX_storage_get_name(storage);
 325 }
 326
 327 const char* SIMIX_storage_get_name(smx_storage_t storage){
 328   xbt_assert((storage != NULL), "Invalid parameters");
 329   return sg_storage_name(storage);
 330 }
 331
 332 void SIMIX_pre_storage_set_data(smx_simcall_t simcall, smx_storage_t storage, void *data) {
 333   SIMIX_storage_set_data(storage, data);
 334 }
 335 void SIMIX_storage_set_data(smx_storage_t storage, void *data){
 336   xbt_assert((storage != NULL), "Invalid parameters");
 337   xbt_assert((SIMIX_storage_priv(storage)->data == NULL), "Data already set");
 338
 339   SIMIX_storage_priv(storage)->data = data;
 340 }
 341
 342 void* SIMIX_pre_storage_get_data(smx_simcall_t simcall,smx_storage_t storage){
 343   return SIMIX_storage_get_data(storage);
 344 }
 345
 346 void* SIMIX_storage_get_data(smx_storage_t storage){
 347   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 348
 349   return SIMIX_storage_priv(storage)->data;
 350 }
 351
 352 xbt_dict_t SIMIX_pre_storage_get_content(smx_simcall_t simcall, smx_storage_t storage){
 353   return SIMIX_storage_get_content(storage);
 354 }
 355
 356 xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage){
 357   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 358   return surf_storage_model->extension.storage.get_content(storage);
 359 }
 360
 361 void SIMIX_post_io(smx_action_t action)
 362 {
 363   xbt_fifo_item_t i;
 364   smx_simcall_t simcall;
 365 //  char* key;
 366 //  xbt_dict_cursor_t cursor = NULL;
 367 //  s_file_stat_t *dst = NULL;
 368 //  s_file_stat_t *src = NULL;
 369
 370   xbt_fifo_foreach(action->simcalls,i,simcall,smx_simcall_t) {
 371     switch (simcall->call) {
 372     case SIMCALL_FILE_OPEN:;
 373       smx_file_t tmp = xbt_new(s_smx_file_t,1);
 374       tmp->surf_file = (action->io.surf_io)->file;
 375       simcall_file_open__set__result(simcall, tmp);
 376       break;
 377
 378     case SIMCALL_FILE_CLOSE:
 379       xbt_free(simcall_file_close__get__fd(simcall));
 380       simcall_file_close__set__result(simcall, 0);
 381       break;
 382
 383     case SIMCALL_FILE_WRITE:
 384       simcall_file_write__set__result(simcall, (action->io.surf_io)->cost);
 385       break;
 386
 387     case SIMCALL_FILE_READ:
 388       simcall_file_read__set__result(simcall, (action->io.surf_io)->cost);
 389       break;
 390
 391     case SIMCALL_FILE_LS:
 392 //      xbt_dict_foreach((action->io.surf_io)->ls_dict,cursor,key, src){
 393 //        // if there is a stat we have to duplicate it
 394 //        if(src){
 395 //          dst = xbt_new0(s_file_stat_t,1);
 396 //          file_stat_copy(src, dst);
 397 //          xbt_dict_set((action->io.surf_io)->ls_dict,key,dst,xbt_free);
 398 //        }
 399 //      }
 400       simcall_file_ls__set__result(simcall, (action->io.surf_io)->ls_dict);
 401       break;
 402     default:
 403       break;
 404     }
 405   }
 406
 407   switch (surf_workstation_model->action_state_get(action->io.surf_io)) {
 408
 409     case SURF_ACTION_FAILED:
 410       action->state = SIMIX_FAILED;
 411       break;
 412
 413     case SURF_ACTION_DONE:
 414       action->state = SIMIX_DONE;
 415       break;
 416
 417     default:
 418       THROW_IMPOSSIBLE;
 419       break;
 420   }
 421
 422   SIMIX_io_finish(action);
 423 }
 424
 425 void SIMIX_io_destroy(smx_action_t action)
 426 {
 427   XBT_DEBUG("Destroy action %p", action);
 428   if (action->io.surf_io)
 429     action->io.surf_io->model_type->action_unref(action->io.surf_io);
 430   xbt_mallocator_release(simix_global->action_mallocator, action);
 431 }
 432
 433 void SIMIX_io_finish(smx_action_t action)
 434 {
 435   xbt_fifo_item_t item;
 436   smx_simcall_t simcall;
 437
 438   xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
 439
 440     switch (action->state) {
 441
 442       case SIMIX_DONE:
 443         /* do nothing, action done */
 444         break;
 445
 446       case SIMIX_FAILED:
 447         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
 448         break;
 449
 450       case SIMIX_CANCELED:
 451         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 452         break;
 453
 454       default:
 455         xbt_die("Internal error in SIMIX_io_finish: unexpected action state %d",
 456             (int)action->state);
 457     }
 458
 459     if (surf_workstation_model->extension.
 460         workstation.get_state(simcall->issuer->smx_host) != SURF_RESOURCE_ON) {
 461       simcall->issuer->context->iwannadie = 1;
 462     }
 463
 464     simcall->issuer->waiting_action = NULL;
 465     SIMIX_simcall_answer(simcall);
 466   }
 467
 468   /* We no longer need it */
 469   SIMIX_io_destroy(action);
 470 }