src/simix/smx_io.c

   1 /* Copyright (c) 2007-2010, 2012-2014. 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   return xbt_lib_get_elm_or_null(storage_lib, name);
  33 }
  34
  35 /**
  36  * \brief Internal function to destroy a SIMIX storage.
  37  *
  38  * \param s the host to destroy (a smx_storage_t)
  39  */
  40 void SIMIX_storage_destroy(void *s)
  41 {
  42   smx_storage_priv_t storage = (smx_storage_priv_t) s;
  43
  44   xbt_assert((storage != NULL), "Invalid parameters");
  45   if (storage->data)
  46     free(storage->data);
  47
  48   /* Clean storage structure */
  49   free(storage);
  50 }
  51
  52 //SIMIX FILE READ
  53 void SIMIX_pre_file_read(smx_simcall_t simcall, smx_file_t fd, sg_size_t size)
  54 {
  55   smx_action_t action = SIMIX_file_read(simcall->issuer, fd, size);
  56   xbt_fifo_push(action->simcalls, simcall);
  57   simcall->issuer->waiting_action = action;
  58 }
  59
  60 smx_action_t SIMIX_file_read(smx_process_t process, smx_file_t fd, sg_size_t size)
  61 {
  62   smx_action_t action;
  63   smx_host_t host = process->smx_host;
  64
  65   /* check if the host is active */
  66   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
  67     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
  68            sg_host_name(host));
  69   }
  70
  71   action = xbt_mallocator_get(simix_global->action_mallocator);
  72   action->type = SIMIX_ACTION_IO;
  73   action->name = NULL;
  74 #ifdef HAVE_TRACING
  75   action->category = NULL;
  76 #endif
  77
  78   action->io.host = host;
  79   action->io.surf_io = surf_workstation_read(host, fd->surf_file, size);
  80
  81   surf_action_set_data(action->io.surf_io, action);
  82   XBT_DEBUG("Create io action %p", action);
  83
  84   return action;
  85 }
  86
  87 //SIMIX FILE WRITE
  88 void SIMIX_pre_file_write(smx_simcall_t simcall, smx_file_t fd, sg_size_t size)
  89 {
  90   smx_action_t action = SIMIX_file_write(simcall->issuer, fd,  size);
  91   xbt_fifo_push(action->simcalls, simcall);
  92   simcall->issuer->waiting_action = action;
  93 }
  94
  95 smx_action_t SIMIX_file_write(smx_process_t process, smx_file_t fd, sg_size_t size)
  96 {
  97   smx_action_t action;
  98   smx_host_t host = process->smx_host;
  99
 100   /* check if the host is active */
 101   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 102     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 103            sg_host_name(host));
 104   }
 105
 106   action = xbt_mallocator_get(simix_global->action_mallocator);
 107   action->type = SIMIX_ACTION_IO;
 108   action->name = NULL;
 109 #ifdef HAVE_TRACING
 110   action->category = NULL;
 111 #endif
 112
 113   action->io.host = host;
 114   action->io.surf_io = surf_workstation_write(host, fd->surf_file, size);
 115
 116   surf_action_set_data(action->io.surf_io, action);
 117   XBT_DEBUG("Create io action %p", action);
 118
 119   return action;
 120 }
 121
 122 //SIMIX FILE OPEN
 123 void SIMIX_pre_file_open(smx_simcall_t simcall, const char* mount,
 124                          const char* path)
 125 {
 126   smx_action_t action = SIMIX_file_open(simcall->issuer, mount, path);
 127   xbt_fifo_push(action->simcalls, simcall);
 128   simcall->issuer->waiting_action = action;
 129 }
 130
 131 smx_action_t SIMIX_file_open(smx_process_t process ,const char* mount,
 132                              const char* path)
 133 {
 134   smx_action_t action;
 135   smx_host_t host = process->smx_host;
 136
 137   /* check if the host is active */
 138   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 139     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 140            sg_host_name(host));
 141   }
 142
 143   action = xbt_mallocator_get(simix_global->action_mallocator);
 144   action->type = SIMIX_ACTION_IO;
 145   action->name = NULL;
 146 #ifdef HAVE_TRACING
 147   action->category = NULL;
 148 #endif
 149
 150   action->io.host = host;
 151   action->io.surf_io = surf_workstation_open(host, mount, path);
 152
 153   surf_action_set_data(action->io.surf_io, action);
 154   XBT_DEBUG("Create io action %p", action);
 155
 156   return action;
 157 }
 158
 159 //SIMIX FILE CLOSE
 160 void SIMIX_pre_file_close(smx_simcall_t simcall, smx_file_t fd)
 161 {
 162   smx_action_t action = SIMIX_file_close(simcall->issuer, fd);
 163   xbt_fifo_push(action->simcalls, simcall);
 164   simcall->issuer->waiting_action = action;
 165 }
 166
 167 smx_action_t SIMIX_file_close(smx_process_t process, smx_file_t fd)
 168 {
 169   smx_action_t action;
 170   smx_host_t host = process->smx_host;
 171
 172   /* check if the host is active */
 173   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 174     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 175            sg_host_name(host));
 176   }
 177
 178   action = xbt_mallocator_get(simix_global->action_mallocator);
 179   action->type = SIMIX_ACTION_IO;
 180   action->name = NULL;
 181 #ifdef HAVE_TRACING
 182   action->category = NULL;
 183 #endif
 184
 185   action->io.host = host;
 186   action->io.surf_io = surf_workstation_close(host, fd->surf_file);
 187
 188   surf_action_set_data(action->io.surf_io, action);
 189   XBT_DEBUG("Create io action %p", action);
 190
 191   return action;
 192 }
 193
 194
 195 //SIMIX FILE UNLINK
 196 int SIMIX_pre_file_unlink(smx_simcall_t simcall, smx_file_t fd)
 197 {
 198   return SIMIX_file_unlink(simcall->issuer, fd);
 199 }
 200
 201 int SIMIX_file_unlink(smx_process_t process, smx_file_t fd)
 202 {
 203   smx_host_t host = process->smx_host;
 204   /* check if the host is active */
 205   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 206     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 207            sg_host_name(host));
 208   }
 209
 210   if (surf_workstation_unlink(host, fd->surf_file)){
 211     xbt_free(fd);
 212     return 1;
 213   } else
 214     return 0;
 215 }
 216
 217 //SIMIX FILE LS
 218 void SIMIX_pre_file_ls(smx_simcall_t simcall,
 219                        const char* mount, const char* path)
 220 {
 221   smx_action_t action = SIMIX_file_ls(simcall->issuer, mount, path);
 222   xbt_fifo_push(action->simcalls, simcall);
 223   simcall->issuer->waiting_action = action;
 224 }
 225 smx_action_t SIMIX_file_ls(smx_process_t process, const char* mount, const char *path)
 226 {
 227   smx_action_t action;
 228   smx_host_t host = process->smx_host;
 229   /* check if the host is active */
 230   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 231     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 232            sg_host_name(host));
 233   }
 234
 235   action = xbt_mallocator_get(simix_global->action_mallocator);
 236   action->type = SIMIX_ACTION_IO;
 237   action->name = NULL;
 238 #ifdef HAVE_TRACING
 239   action->category = NULL;
 240 #endif
 241
 242   action->io.host = host;
 243   action->io.surf_io = surf_workstation_ls(host,mount,path);
 244
 245   surf_action_set_data(action->io.surf_io, action);
 246   XBT_DEBUG("Create io action %p", action);
 247   return action;
 248 }
 249
 250 sg_size_t SIMIX_pre_file_get_size(smx_simcall_t simcall, smx_file_t fd)
 251 {
 252   return SIMIX_file_get_size(simcall->issuer, fd);
 253 }
 254
 255 sg_size_t SIMIX_file_get_size(smx_process_t process, smx_file_t fd)
 256 {
 257   smx_host_t host = process->smx_host;
 258   return  surf_workstation_get_size(host, fd->surf_file);
 259 }
 260
 261 sg_size_t SIMIX_pre_file_tell(smx_simcall_t simcall, smx_file_t fd)
 262 {
 263   return SIMIX_file_tell(simcall->issuer, fd);
 264 }
 265
 266 sg_size_t SIMIX_file_tell(smx_process_t process, smx_file_t fd)
 267 {
 268   smx_host_t host = process->smx_host;
 269   return  surf_workstation_file_tell(host, fd->surf_file);
 270 }
 271
 272
 273 xbt_dynar_t SIMIX_pre_file_get_info(smx_simcall_t simcall, smx_file_t fd)
 274 {
 275   return SIMIX_file_get_info(simcall->issuer, fd);
 276 }
 277
 278 xbt_dynar_t SIMIX_file_get_info(smx_process_t process, smx_file_t fd)
 279 {
 280   smx_host_t host = process->smx_host;
 281   return  surf_workstation_get_info(host, fd->surf_file);
 282 }
 283
 284 int SIMIX_pre_file_seek(smx_simcall_t simcall, smx_file_t fd, sg_size_t offset, int origin)
 285 {
 286   return SIMIX_file_seek(simcall->issuer, fd, offset, origin);
 287 }
 288
 289 int SIMIX_file_seek(smx_process_t process, smx_file_t fd, sg_size_t offset, int origin)
 290 {
 291   smx_host_t host = process->smx_host;
 292   return  surf_workstation_file_seek(host, fd->surf_file, offset, origin);
 293 }
 294
 295 void SIMIX_pre_storage_file_rename(smx_simcall_t simcall, smx_storage_t storage, const char* src, const char* dest)
 296 {
 297   return SIMIX_storage_file_rename(simcall->issuer, storage, src, dest);
 298 }
 299
 300 void SIMIX_storage_file_rename(smx_process_t process, smx_storage_t storage, const char* src, const char* dest)
 301 {
 302   return  surf_storage_rename(storage, src, dest);
 303 }
 304
 305 sg_size_t SIMIX_pre_storage_get_free_size(smx_simcall_t simcall, const char* name)
 306 {
 307   return SIMIX_storage_get_free_size(simcall->issuer, name);
 308 }
 309
 310 sg_size_t SIMIX_storage_get_free_size(smx_process_t process, const char* name)
 311 {
 312   smx_host_t host = process->smx_host;
 313   return  surf_workstation_get_free_size(host, name);
 314 }
 315
 316 sg_size_t SIMIX_pre_storage_get_used_size(smx_simcall_t simcall, const char* name)
 317 {
 318   return SIMIX_storage_get_used_size(simcall->issuer, name);
 319 }
 320
 321 sg_size_t SIMIX_storage_get_used_size(smx_process_t process, const char* name)
 322 {
 323   smx_host_t host = process->smx_host;
 324   return  surf_workstation_get_used_size(host, name);
 325 }
 326
 327 xbt_dict_t SIMIX_pre_storage_get_properties(smx_simcall_t simcall, smx_storage_t storage){
 328   return SIMIX_storage_get_properties(storage);
 329 }
 330 xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage){
 331   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 332   return surf_resource_get_properties(surf_storage_resource_priv(storage));
 333 }
 334
 335 const char* SIMIX_pre_storage_get_name(smx_simcall_t simcall, smx_storage_t storage){
 336    return SIMIX_storage_get_name(storage);
 337 }
 338
 339 const char* SIMIX_storage_get_name(smx_storage_t storage){
 340   xbt_assert((storage != NULL), "Invalid parameters");
 341   return sg_storage_name(storage);
 342 }
 343
 344 xbt_dict_t SIMIX_pre_storage_get_content(smx_simcall_t simcall, smx_storage_t storage){
 345   return SIMIX_storage_get_content(storage);
 346 }
 347
 348 xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage){
 349   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 350   return surf_storage_get_content(storage);
 351 }
 352
 353 sg_size_t SIMIX_storage_get_size(smx_storage_t storage){
 354   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 355   return surf_storage_get_size(storage);
 356 }
 357
 358 const char* SIMIX_pre_storage_get_host(smx_simcall_t simcall, smx_storage_t storage){
 359    return SIMIX_storage_get_host(storage);
 360 }
 361
 362 const char* SIMIX_storage_get_host(smx_storage_t storage){
 363   xbt_assert((storage != NULL), "Invalid parameters");
 364   return surf_storage_get_host(storage);
 365 }
 366
 367 void SIMIX_post_io(smx_action_t action)
 368 {
 369   xbt_fifo_item_t i;
 370   smx_simcall_t simcall;
 371 //  char* key;
 372 //  xbt_dict_cursor_t cursor = NULL;
 373 //  s_file_stat_t *dst = NULL;
 374 //  s_file_stat_t *src = NULL;
 375
 376   xbt_fifo_foreach(action->simcalls,i,simcall,smx_simcall_t) {
 377     switch (simcall->call) {
 378     case SIMCALL_FILE_OPEN: {
 379       smx_file_t tmp = xbt_new(s_smx_file_t,1);
 380       tmp->surf_file = surf_storage_action_get_file(action->io.surf_io);
 381       simcall_file_open__set__result(simcall, tmp);
 382       break;
 383     }
 384     case SIMCALL_FILE_CLOSE:
 385       xbt_free(simcall_file_close__get__fd(simcall));
 386       simcall_file_close__set__result(simcall, 0);
 387       break;
 388     case SIMCALL_FILE_WRITE:
 389       simcall_file_write__set__result(simcall, surf_action_get_cost(action->io.surf_io));
 390       break;
 391
 392     case SIMCALL_FILE_READ:
 393       simcall_file_read__set__result(simcall, surf_action_get_cost(action->io.surf_io));
 394       break;
 395
 396     case SIMCALL_FILE_LS:
 397 //      xbt_dict_foreach((action->io.surf_io)->ls_dict,cursor,key, src){
 398 //        // if there is a stat we have to duplicate it
 399 //        if(src){
 400 //          dst = xbt_new0(s_file_stat_t,1);
 401 //          file_stat_copy(src, dst);
 402 //          xbt_dict_set((action->io.surf_io)->ls_dict,key,dst,xbt_free);
 403 //        }
 404 //      }
 405       simcall_file_ls__set__result(simcall, surf_storage_action_get_ls_dict(action->io.surf_io));
 406       break;
 407     default:
 408       break;
 409     }
 410   }
 411
 412   switch (surf_action_get_state(action->io.surf_io)) {
 413
 414     case SURF_ACTION_FAILED:
 415       action->state = SIMIX_FAILED;
 416       break;
 417
 418     case SURF_ACTION_DONE:
 419       action->state = SIMIX_DONE;
 420       break;
 421
 422     default:
 423       THROW_IMPOSSIBLE;
 424       break;
 425   }
 426
 427   SIMIX_io_finish(action);
 428 }
 429
 430 void SIMIX_io_destroy(smx_action_t action)
 431 {
 432   XBT_DEBUG("Destroy action %p", action);
 433   if (action->io.surf_io)
 434     surf_action_unref(action->io.surf_io);
 435   xbt_mallocator_release(simix_global->action_mallocator, action);
 436 }
 437
 438 void SIMIX_io_finish(smx_action_t action)
 439 {
 440   xbt_fifo_item_t item;
 441   smx_simcall_t simcall;
 442
 443   xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
 444
 445     switch (action->state) {
 446
 447       case SIMIX_DONE:
 448         /* do nothing, action done */
 449         break;
 450
 451       case SIMIX_FAILED:
 452         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
 453         break;
 454
 455       case SIMIX_CANCELED:
 456         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 457         break;
 458
 459       default:
 460         xbt_die("Internal error in SIMIX_io_finish: unexpected action state %d",
 461             (int)action->state);
 462     }
 463
 464     if (surf_resource_get_state(surf_workstation_resource_priv(simcall->issuer->smx_host)) != SURF_RESOURCE_ON) {
 465       simcall->issuer->context->iwannadie = 1;
 466     }
 467
 468     simcall->issuer->waiting_action = NULL;
 469     SIMIX_simcall_answer(simcall);
 470   }
 471
 472   /* We no longer need it */
 473   SIMIX_io_destroy(action);
 474 }