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_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_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_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
  88     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
  89            sg_host_name(host));
  90   }
  91
  92   action = xbt_mallocator_get(simix_global->action_mallocator);
  93   action->type = SIMIX_ACTION_IO;
  94   action->name = NULL;
  95 #ifdef HAVE_TRACING
  96   action->category = NULL;
  97 #endif
  98
  99   action->io.host = host;
 100   action->io.surf_io = surf_workstation_read(host, fd->surf_file, size);
 101
 102   surf_action_set_data(action->io.surf_io, action);
 103   XBT_DEBUG("Create io action %p", action);
 104
 105   return action;
 106 }
 107
 108 //SIMIX FILE WRITE
 109 void SIMIX_pre_file_write(smx_simcall_t simcall, smx_file_t fd, sg_size_t size)
 110 {
 111   smx_action_t action = SIMIX_file_write(simcall->issuer, fd,  size);
 112   xbt_fifo_push(action->simcalls, simcall);
 113   simcall->issuer->waiting_action = action;
 114 }
 115
 116 smx_action_t SIMIX_file_write(smx_process_t process, smx_file_t fd, sg_size_t size)
 117 {
 118   smx_action_t action;
 119   smx_host_t host = process->smx_host;
 120
 121   /* check if the host is active */
 122   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 123     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 124            sg_host_name(host));
 125   }
 126
 127   action = xbt_mallocator_get(simix_global->action_mallocator);
 128   action->type = SIMIX_ACTION_IO;
 129   action->name = NULL;
 130 #ifdef HAVE_TRACING
 131   action->category = NULL;
 132 #endif
 133
 134   action->io.host = host;
 135   action->io.surf_io = surf_workstation_write(host, fd->surf_file, size);
 136
 137   surf_action_set_data(action->io.surf_io, action);
 138   XBT_DEBUG("Create io action %p", action);
 139
 140   return action;
 141 }
 142
 143 //SIMIX FILE OPEN
 144 void SIMIX_pre_file_open(smx_simcall_t simcall, const char* mount,
 145                          const char* path)
 146 {
 147   smx_action_t action = SIMIX_file_open(simcall->issuer, mount, path);
 148   xbt_fifo_push(action->simcalls, simcall);
 149   simcall->issuer->waiting_action = action;
 150 }
 151
 152 smx_action_t SIMIX_file_open(smx_process_t process ,const char* mount,
 153                              const char* path)
 154 {
 155   smx_action_t action;
 156   smx_host_t host = process->smx_host;
 157
 158   /* check if the host is active */
 159   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 160     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 161            sg_host_name(host));
 162   }
 163
 164   action = xbt_mallocator_get(simix_global->action_mallocator);
 165   action->type = SIMIX_ACTION_IO;
 166   action->name = NULL;
 167 #ifdef HAVE_TRACING
 168   action->category = NULL;
 169 #endif
 170
 171   action->io.host = host;
 172   action->io.surf_io = surf_workstation_open(host, mount, path);
 173
 174   surf_action_set_data(action->io.surf_io, action);
 175   XBT_DEBUG("Create io action %p", action);
 176
 177   return action;
 178 }
 179
 180 //SIMIX FILE CLOSE
 181 void SIMIX_pre_file_close(smx_simcall_t simcall, smx_file_t fd)
 182 {
 183   smx_action_t action = SIMIX_file_close(simcall->issuer, fd);
 184   xbt_fifo_push(action->simcalls, simcall);
 185   simcall->issuer->waiting_action = action;
 186 }
 187
 188 smx_action_t SIMIX_file_close(smx_process_t process, smx_file_t fd)
 189 {
 190   smx_action_t action;
 191   smx_host_t host = process->smx_host;
 192
 193   /* check if the host is active */
 194   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 195     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 196            sg_host_name(host));
 197   }
 198
 199   action = xbt_mallocator_get(simix_global->action_mallocator);
 200   action->type = SIMIX_ACTION_IO;
 201   action->name = NULL;
 202 #ifdef HAVE_TRACING
 203   action->category = NULL;
 204 #endif
 205
 206   action->io.host = host;
 207   action->io.surf_io = surf_workstation_close(host, fd->surf_file);
 208
 209   surf_action_set_data(action->io.surf_io, action);
 210   XBT_DEBUG("Create io action %p", action);
 211
 212   return action;
 213 }
 214
 215
 216 //SIMIX FILE UNLINK
 217 int SIMIX_pre_file_unlink(smx_simcall_t simcall, smx_file_t fd)
 218 {
 219   return SIMIX_file_unlink(simcall->issuer, fd);
 220 }
 221
 222 int SIMIX_file_unlink(smx_process_t process, smx_file_t fd)
 223 {
 224   smx_host_t host = process->smx_host;
 225   /* check if the host is active */
 226   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 227     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 228            sg_host_name(host));
 229   }
 230
 231   if (surf_workstation_unlink(host, fd->surf_file)){
 232     xbt_free(fd);
 233     return 1;
 234   } else
 235     return 0;
 236 }
 237
 238 //SIMIX FILE LS
 239 void SIMIX_pre_file_ls(smx_simcall_t simcall,
 240                        const char* mount, const char* path)
 241 {
 242   smx_action_t action = SIMIX_file_ls(simcall->issuer, mount, path);
 243   xbt_fifo_push(action->simcalls, simcall);
 244   simcall->issuer->waiting_action = action;
 245 }
 246 smx_action_t SIMIX_file_ls(smx_process_t process, const char* mount, const char *path)
 247 {
 248   smx_action_t action;
 249   smx_host_t host = process->smx_host;
 250   /* check if the host is active */
 251   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 252     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 253            sg_host_name(host));
 254   }
 255
 256   action = xbt_mallocator_get(simix_global->action_mallocator);
 257   action->type = SIMIX_ACTION_IO;
 258   action->name = NULL;
 259 #ifdef HAVE_TRACING
 260   action->category = NULL;
 261 #endif
 262
 263   action->io.host = host;
 264   action->io.surf_io = surf_workstation_ls(host,mount,path);
 265
 266   surf_action_set_data(action->io.surf_io, action);
 267   XBT_DEBUG("Create io action %p", action);
 268   return action;
 269 }
 270
 271 sg_size_t SIMIX_pre_file_get_size(smx_simcall_t simcall, smx_file_t fd)
 272 {
 273   return SIMIX_file_get_size(simcall->issuer, fd);
 274 }
 275
 276 sg_size_t SIMIX_file_get_size(smx_process_t process, smx_file_t fd)
 277 {
 278   smx_host_t host = process->smx_host;
 279   return  surf_workstation_get_size(host, fd->surf_file);
 280 }
 281
 282 sg_size_t SIMIX_pre_file_tell(smx_simcall_t simcall, smx_file_t fd)
 283 {
 284   return SIMIX_file_tell(simcall->issuer, fd);
 285 }
 286
 287 sg_size_t SIMIX_file_tell(smx_process_t process, smx_file_t fd)
 288 {
 289   smx_host_t host = process->smx_host;
 290   return  surf_workstation_file_tell(host, fd->surf_file);
 291 }
 292
 293
 294 xbt_dynar_t SIMIX_pre_file_get_info(smx_simcall_t simcall, smx_file_t fd)
 295 {
 296   return SIMIX_file_get_info(simcall->issuer, fd);
 297 }
 298
 299 xbt_dynar_t SIMIX_file_get_info(smx_process_t process, smx_file_t fd)
 300 {
 301   smx_host_t host = process->smx_host;
 302   return  surf_workstation_get_info(host, fd->surf_file);
 303 }
 304
 305 int SIMIX_pre_file_seek(smx_simcall_t simcall, smx_file_t fd, sg_size_t offset, int origin)
 306 {
 307   return SIMIX_file_seek(simcall->issuer, fd, offset, origin);
 308 }
 309
 310 int SIMIX_file_seek(smx_process_t process, smx_file_t fd, sg_size_t offset, int origin)
 311 {
 312   smx_host_t host = process->smx_host;
 313   return  surf_workstation_file_seek(host, fd->surf_file, offset, origin);
 314 }
 315
 316 void SIMIX_pre_storage_file_rename(smx_simcall_t simcall, smx_storage_t storage, const char* src, const char* dest)
 317 {
 318   return SIMIX_storage_file_rename(simcall->issuer, storage, src, dest);
 319 }
 320
 321 void SIMIX_storage_file_rename(smx_process_t process, smx_storage_t storage, const char* src, const char* dest)
 322 {
 323   return  surf_storage_rename(storage, src, dest);
 324 }
 325
 326 sg_size_t SIMIX_pre_storage_get_free_size(smx_simcall_t simcall, const char* name)
 327 {
 328   return SIMIX_storage_get_free_size(simcall->issuer, name);
 329 }
 330
 331 sg_size_t SIMIX_storage_get_free_size(smx_process_t process, const char* name)
 332 {
 333   smx_host_t host = process->smx_host;
 334   return  surf_workstation_get_free_size(host, name);
 335 }
 336
 337 sg_size_t SIMIX_pre_storage_get_used_size(smx_simcall_t simcall, const char* name)
 338 {
 339   return SIMIX_storage_get_used_size(simcall->issuer, name);
 340 }
 341
 342 sg_size_t SIMIX_storage_get_used_size(smx_process_t process, const char* name)
 343 {
 344   smx_host_t host = process->smx_host;
 345   return  surf_workstation_get_used_size(host, name);
 346 }
 347
 348 xbt_dict_t SIMIX_pre_storage_get_properties(smx_simcall_t simcall, smx_storage_t storage){
 349   return SIMIX_storage_get_properties(storage);
 350 }
 351 xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage){
 352   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 353   return surf_resource_get_properties(surf_workstation_resource_priv(storage));
 354 }
 355
 356 const char* SIMIX_pre_storage_get_name(smx_simcall_t simcall, smx_storage_t storage){
 357    return SIMIX_storage_get_name(storage);
 358 }
 359
 360 const char* SIMIX_storage_get_name(smx_storage_t storage){
 361   xbt_assert((storage != NULL), "Invalid parameters");
 362   return sg_storage_name(storage);
 363 }
 364
 365 void SIMIX_pre_storage_set_data(smx_simcall_t simcall, smx_storage_t storage, void *data) {
 366   SIMIX_storage_set_data(storage, data);
 367 }
 368 void SIMIX_storage_set_data(smx_storage_t storage, void *data){
 369   xbt_assert((storage != NULL), "Invalid parameters");
 370   xbt_assert((SIMIX_storage_priv(storage)->data == NULL), "Data already set");
 371
 372   SIMIX_storage_priv(storage)->data = data;
 373 }
 374
 375 void* SIMIX_pre_storage_get_data(smx_simcall_t simcall,smx_storage_t storage){
 376   return SIMIX_storage_get_data(storage);
 377 }
 378
 379 void* SIMIX_storage_get_data(smx_storage_t storage){
 380   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 381
 382   return SIMIX_storage_priv(storage)->data;
 383 }
 384
 385 xbt_dict_t SIMIX_pre_storage_get_content(smx_simcall_t simcall, smx_storage_t storage){
 386   return SIMIX_storage_get_content(storage);
 387 }
 388
 389 xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage){
 390   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 391   return surf_storage_get_content(storage);
 392 }
 393
 394 sg_size_t SIMIX_storage_get_size(smx_storage_t storage){
 395   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 396   return surf_storage_get_size(storage);
 397 }
 398
 399 void SIMIX_post_io(smx_action_t action)
 400 {
 401   xbt_fifo_item_t i;
 402   smx_simcall_t simcall;
 403 //  char* key;
 404 //  xbt_dict_cursor_t cursor = NULL;
 405 //  s_file_stat_t *dst = NULL;
 406 //  s_file_stat_t *src = NULL;
 407
 408   xbt_fifo_foreach(action->simcalls,i,simcall,smx_simcall_t) {
 409     switch (simcall->call) {
 410     case SIMCALL_FILE_OPEN:;
 411       smx_file_t tmp = xbt_new(s_smx_file_t,1);
 412       tmp->surf_file = surf_storage_action_get_file(action->io.surf_io);
 413       simcall_file_open__set__result(simcall, tmp);
 414       break;
 415
 416     case SIMCALL_FILE_CLOSE:
 417       xbt_free(simcall_file_close__get__fd(simcall));
 418       simcall_file_close__set__result(simcall, 0);
 419       break;
 420     case SIMCALL_FILE_WRITE:
 421       simcall_file_write__set__result(simcall, surf_action_get_cost(action->io.surf_io));
 422       break;
 423
 424     case SIMCALL_FILE_READ:
 425       simcall_file_read__set__result(simcall, surf_action_get_cost(action->io.surf_io));
 426       break;
 427
 428     case SIMCALL_FILE_LS:
 429 //      xbt_dict_foreach((action->io.surf_io)->ls_dict,cursor,key, src){
 430 //        // if there is a stat we have to duplicate it
 431 //        if(src){
 432 //          dst = xbt_new0(s_file_stat_t,1);
 433 //          file_stat_copy(src, dst);
 434 //          xbt_dict_set((action->io.surf_io)->ls_dict,key,dst,xbt_free);
 435 //        }
 436 //      }
 437       simcall_file_ls__set__result(simcall, surf_storage_action_get_ls_dict(action->io.surf_io));
 438       break;
 439     default:
 440       break;
 441     }
 442   }
 443
 444   switch (surf_action_get_state(action->io.surf_io)) {
 445
 446     case SURF_ACTION_FAILED:
 447       action->state = SIMIX_FAILED;
 448       break;
 449
 450     case SURF_ACTION_DONE:
 451       action->state = SIMIX_DONE;
 452       break;
 453
 454     default:
 455       THROW_IMPOSSIBLE;
 456       break;
 457   }
 458
 459   SIMIX_io_finish(action);
 460 }
 461
 462 void SIMIX_io_destroy(smx_action_t action)
 463 {
 464   XBT_DEBUG("Destroy action %p", action);
 465   if (action->io.surf_io)
 466     surf_action_unref(action->io.surf_io);
 467   xbt_mallocator_release(simix_global->action_mallocator, action);
 468 }
 469
 470 void SIMIX_io_finish(smx_action_t action)
 471 {
 472   xbt_fifo_item_t item;
 473   smx_simcall_t simcall;
 474
 475   xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
 476
 477     switch (action->state) {
 478
 479       case SIMIX_DONE:
 480         /* do nothing, action done */
 481         break;
 482
 483       case SIMIX_FAILED:
 484         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
 485         break;
 486
 487       case SIMIX_CANCELED:
 488         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 489         break;
 490
 491       default:
 492         xbt_die("Internal error in SIMIX_io_finish: unexpected action state %d",
 493             (int)action->state);
 494     }
 495
 496     if (surf_resource_get_state(surf_workstation_resource_priv(simcall->issuer->smx_host)) != SURF_RESOURCE_ON) {
 497       simcall->issuer->context->iwannadie = 1;
 498     }
 499
 500     simcall->issuer->waiting_action = NULL;
 501     SIMIX_simcall_answer(simcall);
 502   }
 503
 504   /* We no longer need it */
 505   SIMIX_io_destroy(action);
 506 }