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  * \brief Internal function to destroy a SIMIX storage.
  38  *
  39  * \param s the host to destroy (a smx_storage_t)
  40  */
  41 void SIMIX_storage_destroy(void *s)
  42 {
  43   smx_storage_priv_t storage = (smx_storage_priv_t) s;
  44
  45   xbt_assert((storage != NULL), "Invalid parameters");
  46   if (storage->data)
  47     free(storage->data);
  48
  49   /* Clean storage structure */
  50   free(storage);
  51 }
  52
  53 void* SIMIX_pre_file_get_data(smx_simcall_t simcall,smx_file_t fd){
  54   return SIMIX_file_get_data(fd);
  55 }
  56
  57 void* SIMIX_file_get_data(smx_file_t fd){
  58   xbt_assert((fd != NULL), "Invalid parameters (simix file is NULL)");
  59
  60   return fd->data;
  61 }
  62
  63 void SIMIX_pre_file_set_data(smx_simcall_t simcall, smx_file_t fd, void *data) {
  64   SIMIX_file_set_data(fd, data);
  65 }
  66
  67 void SIMIX_file_set_data(smx_file_t fd, void *data){
  68   xbt_assert((fd != NULL), "Invalid parameter");
  69
  70   fd->data = data;
  71 }
  72
  73 //SIMIX FILE READ
  74 void SIMIX_pre_file_read(smx_simcall_t simcall, smx_file_t fd, sg_storage_size_t size)
  75 {
  76   smx_action_t action = SIMIX_file_read(simcall->issuer, fd, size);
  77   xbt_fifo_push(action->simcalls, simcall);
  78   simcall->issuer->waiting_action = action;
  79 }
  80
  81 smx_action_t SIMIX_file_read(smx_process_t process, smx_file_t fd, sg_storage_size_t size)
  82 {
  83   smx_action_t action;
  84   smx_host_t host = process->smx_host;
  85
  86   /* check if the host is active */
  87   if (surf_workstation_model->extension.
  88       workstation.get_state(host) != SURF_RESOURCE_ON) {
  89     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
  90            sg_host_name(host));
  91   }
  92
  93   action = xbt_mallocator_get(simix_global->action_mallocator);
  94   action->type = SIMIX_ACTION_IO;
  95   action->name = NULL;
  96 #ifdef HAVE_TRACING
  97   action->category = NULL;
  98 #endif
  99
 100   action->io.host = host;
 101   action->io.surf_io =
 102       surf_workstation_model->extension.workstation.read(host, fd->surf_file, size);
 103
 104   surf_workstation_model->action_data_set(action->io.surf_io, action);
 105   XBT_DEBUG("Create io action %p", action);
 106
 107   return action;
 108 }
 109
 110 //SIMIX FILE WRITE
 111 void SIMIX_pre_file_write(smx_simcall_t simcall, smx_file_t fd, sg_storage_size_t size)
 112 {
 113   smx_action_t action = SIMIX_file_write(simcall->issuer, fd,  size);
 114   xbt_fifo_push(action->simcalls, simcall);
 115   simcall->issuer->waiting_action = action;
 116 }
 117
 118 smx_action_t SIMIX_file_write(smx_process_t process, smx_file_t fd, sg_storage_size_t size)
 119 {
 120   smx_action_t action;
 121   smx_host_t host = process->smx_host;
 122
 123   /* check if the host is active */
 124   if (surf_workstation_model->extension.
 125       workstation.get_state(host) != SURF_RESOURCE_ON) {
 126     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 127            sg_host_name(host));
 128   }
 129
 130   action = xbt_mallocator_get(simix_global->action_mallocator);
 131   action->type = SIMIX_ACTION_IO;
 132   action->name = NULL;
 133 #ifdef HAVE_TRACING
 134   action->category = NULL;
 135 #endif
 136
 137   action->io.host = host;
 138   action->io.surf_io =
 139       surf_workstation_model->extension.workstation.write(host, fd->surf_file, size);
 140
 141   surf_workstation_model->action_data_set(action->io.surf_io, action);
 142   XBT_DEBUG("Create io action %p", action);
 143
 144   return action;
 145 }
 146
 147 //SIMIX FILE OPEN
 148 void SIMIX_pre_file_open(smx_simcall_t simcall, const char* mount,
 149                          const char* path)
 150 {
 151   smx_action_t action = SIMIX_file_open(simcall->issuer, mount, path);
 152   xbt_fifo_push(action->simcalls, simcall);
 153   simcall->issuer->waiting_action = action;
 154 }
 155
 156 smx_action_t SIMIX_file_open(smx_process_t process ,const char* mount,
 157                              const char* path)
 158 {
 159   smx_action_t action;
 160   smx_host_t host = process->smx_host;
 161
 162   /* check if the host is active */
 163   if (surf_workstation_model->extension.
 164       workstation.get_state(host) != SURF_RESOURCE_ON) {
 165     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 166            sg_host_name(host));
 167   }
 168
 169   action = xbt_mallocator_get(simix_global->action_mallocator);
 170   action->type = SIMIX_ACTION_IO;
 171   action->name = NULL;
 172 #ifdef HAVE_TRACING
 173   action->category = NULL;
 174 #endif
 175
 176   action->io.host = host;
 177   action->io.surf_io =
 178       surf_workstation_model->extension.workstation.open(host, mount, path);
 179
 180   surf_workstation_model->action_data_set(action->io.surf_io, action);
 181   XBT_DEBUG("Create io action %p", action);
 182
 183   return action;
 184 }
 185
 186 //SIMIX FILE CLOSE
 187 void SIMIX_pre_file_close(smx_simcall_t simcall, smx_file_t fd)
 188 {
 189   smx_action_t action = SIMIX_file_close(simcall->issuer, fd);
 190   xbt_fifo_push(action->simcalls, simcall);
 191   simcall->issuer->waiting_action = action;
 192 }
 193
 194 smx_action_t SIMIX_file_close(smx_process_t process, smx_file_t fd)
 195 {
 196   smx_action_t action;
 197   smx_host_t host = process->smx_host;
 198
 199   /* check if the host is active */
 200   if (surf_workstation_model->extension.
 201       workstation.get_state(host) != SURF_RESOURCE_ON) {
 202     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 203            sg_host_name(host));
 204   }
 205
 206   action = xbt_mallocator_get(simix_global->action_mallocator);
 207   action->type = SIMIX_ACTION_IO;
 208   action->name = NULL;
 209 #ifdef HAVE_TRACING
 210   action->category = NULL;
 211 #endif
 212
 213   action->io.host = host;
 214   action->io.surf_io = surf_workstation_model->extension.workstation.close(host, fd->surf_file);
 215
 216   surf_workstation_model->action_data_set(action->io.surf_io, action);
 217   XBT_DEBUG("Create io action %p", action);
 218
 219   return action;
 220 }
 221
 222
 223 //SIMIX FILE UNLINK
 224 int SIMIX_pre_file_unlink(smx_simcall_t simcall, smx_file_t fd)
 225 {
 226   return SIMIX_file_unlink(simcall->issuer, fd);
 227 }
 228
 229 int SIMIX_file_unlink(smx_process_t process, smx_file_t fd)
 230 {
 231   smx_host_t host = process->smx_host;
 232   /* check if the host is active */
 233   if (surf_workstation_model->extension.
 234       workstation.get_state(host) != SURF_RESOURCE_ON) {
 235     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 236            sg_host_name(host));
 237   }
 238
 239   if (surf_workstation_model->extension.workstation.unlink(host, fd->surf_file)){
 240     xbt_free(fd);
 241     return 1;
 242   } else
 243     return 0;
 244 }
 245
 246 //SIMIX FILE LS
 247 void SIMIX_pre_file_ls(smx_simcall_t simcall,
 248                        const char* mount, const char* path)
 249 {
 250   smx_action_t action = SIMIX_file_ls(simcall->issuer, mount, path);
 251   xbt_fifo_push(action->simcalls, simcall);
 252   simcall->issuer->waiting_action = action;
 253 }
 254 smx_action_t SIMIX_file_ls(smx_process_t process, const char* mount, const char *path)
 255 {
 256   smx_action_t action;
 257   smx_host_t host = process->smx_host;
 258   /* check if the host is active */
 259   if (surf_workstation_model->extension.workstation.get_state(host) != SURF_RESOURCE_ON) {
 260     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 261            sg_host_name(host));
 262   }
 263
 264   action = xbt_mallocator_get(simix_global->action_mallocator);
 265   action->type = SIMIX_ACTION_IO;
 266   action->name = NULL;
 267 #ifdef HAVE_TRACING
 268   action->category = NULL;
 269 #endif
 270
 271   action->io.host = host;
 272   action->io.surf_io = surf_workstation_model->extension.workstation.ls(host,mount,path);
 273
 274   surf_workstation_model->action_data_set(action->io.surf_io, action);
 275   XBT_DEBUG("Create io action %p", action);
 276   return action;
 277 }
 278
 279 sg_storage_size_t SIMIX_pre_file_get_size(smx_simcall_t simcall, smx_file_t fd)
 280 {
 281   return SIMIX_file_get_size(simcall->issuer, fd);
 282 }
 283
 284 sg_storage_size_t SIMIX_file_get_size(smx_process_t process, smx_file_t fd)
 285 {
 286   smx_host_t host = process->smx_host;
 287   return  surf_workstation_model->extension.workstation.get_size(host,
 288       fd->surf_file);
 289 }
 290
 291 xbt_dynar_t SIMIX_pre_file_get_info(smx_simcall_t simcall, smx_file_t fd)
 292 {
 293   return SIMIX_file_get_info(simcall->issuer, fd);
 294 }
 295
 296 xbt_dynar_t SIMIX_file_get_info(smx_process_t process, smx_file_t fd)
 297 {
 298   smx_host_t host = process->smx_host;
 299   return  surf_workstation_model->extension.workstation.get_info(host,
 300       fd->surf_file);
 301 }
 302
 303 sg_storage_size_t SIMIX_pre_storage_get_free_size(smx_simcall_t simcall, const char* name)
 304 {
 305   return SIMIX_storage_get_free_size(simcall->issuer, name);
 306 }
 307
 308 sg_storage_size_t SIMIX_storage_get_free_size(smx_process_t process, const char* name)
 309 {
 310   smx_host_t host = process->smx_host;
 311   return  surf_workstation_model->extension.workstation.get_free_size(host,name);
 312 }
 313
 314 sg_storage_size_t SIMIX_pre_storage_get_used_size(smx_simcall_t simcall, const char* name)
 315 {
 316   return SIMIX_storage_get_used_size(simcall->issuer, name);
 317 }
 318
 319 sg_storage_size_t SIMIX_storage_get_used_size(smx_process_t process, const char* name)
 320 {
 321   smx_host_t host = process->smx_host;
 322   return  surf_workstation_model->extension.workstation.get_used_size(host,name);
 323 }
 324
 325 xbt_dict_t SIMIX_pre_storage_get_properties(smx_simcall_t simcall, smx_storage_t storage){
 326   return SIMIX_storage_get_properties(storage);
 327 }
 328 xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage){
 329   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 330   return surf_storage_model->extension.storage.get_properties(storage);
 331 }
 332
 333 const char* SIMIX_pre_storage_get_name(smx_simcall_t simcall, smx_storage_t storage){
 334    return SIMIX_storage_get_name(storage);
 335 }
 336
 337 const char* SIMIX_storage_get_name(smx_storage_t storage){
 338   xbt_assert((storage != NULL), "Invalid parameters");
 339   return sg_storage_name(storage);
 340 }
 341
 342 void SIMIX_pre_storage_set_data(smx_simcall_t simcall, smx_storage_t storage, void *data) {
 343   SIMIX_storage_set_data(storage, data);
 344 }
 345 void SIMIX_storage_set_data(smx_storage_t storage, void *data){
 346   xbt_assert((storage != NULL), "Invalid parameters");
 347   xbt_assert((SIMIX_storage_priv(storage)->data == NULL), "Data already set");
 348
 349   SIMIX_storage_priv(storage)->data = data;
 350 }
 351
 352 void* SIMIX_pre_storage_get_data(smx_simcall_t simcall,smx_storage_t storage){
 353   return SIMIX_storage_get_data(storage);
 354 }
 355
 356 void* SIMIX_storage_get_data(smx_storage_t storage){
 357   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 358
 359   return SIMIX_storage_priv(storage)->data;
 360 }
 361
 362 xbt_dict_t SIMIX_pre_storage_get_content(smx_simcall_t simcall, smx_storage_t storage){
 363   return SIMIX_storage_get_content(storage);
 364 }
 365
 366 xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage){
 367   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 368   return surf_storage_model->extension.storage.get_content(storage);
 369 }
 370
 371 sg_storage_size_t SIMIX_storage_get_size(smx_storage_t storage){
 372   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 373   return surf_storage_model->extension.storage.get_size(storage);
 374 }
 375
 376 void SIMIX_post_io(smx_action_t action)
 377 {
 378   xbt_fifo_item_t i;
 379   smx_simcall_t simcall;
 380 //  char* key;
 381 //  xbt_dict_cursor_t cursor = NULL;
 382 //  s_file_stat_t *dst = NULL;
 383 //  s_file_stat_t *src = NULL;
 384
 385   xbt_fifo_foreach(action->simcalls,i,simcall,smx_simcall_t) {
 386     switch (simcall->call) {
 387     case SIMCALL_FILE_OPEN:;
 388       smx_file_t tmp = xbt_new(s_smx_file_t,1);
 389       tmp->surf_file = (action->io.surf_io)->file;
 390       simcall_file_open__set__result(simcall, tmp);
 391       break;
 392
 393     case SIMCALL_FILE_CLOSE:
 394       xbt_free(simcall_file_close__get__fd(simcall));
 395       simcall_file_close__set__result(simcall, 0);
 396       break;
 397
 398     case SIMCALL_FILE_WRITE:
 399       simcall_file_write__set__result(simcall, (action->io.surf_io)->cost);
 400       break;
 401
 402     case SIMCALL_FILE_READ:
 403       simcall_file_read__set__result(simcall, (action->io.surf_io)->cost);
 404       break;
 405
 406     case SIMCALL_FILE_LS:
 407 //      xbt_dict_foreach((action->io.surf_io)->ls_dict,cursor,key, src){
 408 //        // if there is a stat we have to duplicate it
 409 //        if(src){
 410 //          dst = xbt_new0(s_file_stat_t,1);
 411 //          file_stat_copy(src, dst);
 412 //          xbt_dict_set((action->io.surf_io)->ls_dict,key,dst,xbt_free);
 413 //        }
 414 //      }
 415       simcall_file_ls__set__result(simcall, (action->io.surf_io)->ls_dict);
 416       break;
 417     default:
 418       break;
 419     }
 420   }
 421
 422   switch (surf_workstation_model->action_state_get(action->io.surf_io)) {
 423
 424     case SURF_ACTION_FAILED:
 425       action->state = SIMIX_FAILED;
 426       break;
 427
 428     case SURF_ACTION_DONE:
 429       action->state = SIMIX_DONE;
 430       break;
 431
 432     default:
 433       THROW_IMPOSSIBLE;
 434       break;
 435   }
 436
 437   SIMIX_io_finish(action);
 438 }
 439
 440 void SIMIX_io_destroy(smx_action_t action)
 441 {
 442   XBT_DEBUG("Destroy action %p", action);
 443   if (action->io.surf_io)
 444     action->io.surf_io->model_obj->action_unref(action->io.surf_io);
 445   xbt_mallocator_release(simix_global->action_mallocator, action);
 446 }
 447
 448 void SIMIX_io_finish(smx_action_t action)
 449 {
 450   xbt_fifo_item_t item;
 451   smx_simcall_t simcall;
 452
 453   xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
 454
 455     switch (action->state) {
 456
 457       case SIMIX_DONE:
 458         /* do nothing, action done */
 459         break;
 460
 461       case SIMIX_FAILED:
 462         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
 463         break;
 464
 465       case SIMIX_CANCELED:
 466         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 467         break;
 468
 469       default:
 470         xbt_die("Internal error in SIMIX_io_finish: unexpected action state %d",
 471             (int)action->state);
 472     }
 473
 474     if (surf_workstation_model->extension.
 475         workstation.get_state(simcall->issuer->smx_host) != SURF_RESOURCE_ON) {
 476       simcall->issuer->context->iwannadie = 1;
 477     }
 478
 479     simcall->issuer->waiting_action = NULL;
 480     SIMIX_simcall_answer(simcall);
 481   }
 482
 483   /* We no longer need it */
 484   SIMIX_io_destroy(action);
 485 }