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* fullpath)
 124 {
 125   smx_action_t action = SIMIX_file_open(simcall->issuer, fullpath);
 126   xbt_fifo_push(action->simcalls, simcall);
 127   simcall->issuer->waiting_action = action;
 128 }
 129
 130 smx_action_t SIMIX_file_open(smx_process_t process, const char* fullpath)
 131 {
 132   smx_action_t action;
 133   smx_host_t host = process->smx_host;
 134
 135   /* check if the host is active */
 136   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 137     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 138            sg_host_name(host));
 139   }
 140
 141   action = xbt_mallocator_get(simix_global->action_mallocator);
 142   action->type = SIMIX_ACTION_IO;
 143   action->name = NULL;
 144 #ifdef HAVE_TRACING
 145   action->category = NULL;
 146 #endif
 147
 148   action->io.host = host;
 149   action->io.surf_io = surf_workstation_open(host, fullpath);
 150
 151   surf_action_set_data(action->io.surf_io, action);
 152   XBT_DEBUG("Create io action %p", action);
 153
 154   return action;
 155 }
 156
 157 //SIMIX FILE CLOSE
 158 void SIMIX_pre_file_close(smx_simcall_t simcall, smx_file_t fd)
 159 {
 160   smx_action_t action = SIMIX_file_close(simcall->issuer, fd);
 161   xbt_fifo_push(action->simcalls, simcall);
 162   simcall->issuer->waiting_action = action;
 163 }
 164
 165 smx_action_t SIMIX_file_close(smx_process_t process, smx_file_t fd)
 166 {
 167   smx_action_t action;
 168   smx_host_t host = process->smx_host;
 169
 170   /* check if the host is active */
 171   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 172     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 173            sg_host_name(host));
 174   }
 175
 176   action = xbt_mallocator_get(simix_global->action_mallocator);
 177   action->type = SIMIX_ACTION_IO;
 178   action->name = NULL;
 179 #ifdef HAVE_TRACING
 180   action->category = NULL;
 181 #endif
 182
 183   action->io.host = host;
 184   action->io.surf_io = surf_workstation_close(host, fd->surf_file);
 185
 186   surf_action_set_data(action->io.surf_io, action);
 187   XBT_DEBUG("Create io action %p", action);
 188
 189   return action;
 190 }
 191
 192
 193 //SIMIX FILE UNLINK
 194 int SIMIX_pre_file_unlink(smx_simcall_t simcall, smx_file_t fd)
 195 {
 196   return SIMIX_file_unlink(simcall->issuer, fd);
 197 }
 198
 199 int SIMIX_file_unlink(smx_process_t process, smx_file_t fd)
 200 {
 201   smx_host_t host = process->smx_host;
 202   /* check if the host is active */
 203   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 204     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 205            sg_host_name(host));
 206   }
 207
 208   if (surf_workstation_unlink(host, fd->surf_file)){
 209     xbt_free(fd);
 210     return 1;
 211   } else
 212     return 0;
 213 }
 214
 215 //SIMIX FILE LS
 216 void SIMIX_pre_file_ls(smx_simcall_t simcall,
 217                        const char* mount, const char* path)
 218 {
 219   smx_action_t action = SIMIX_file_ls(simcall->issuer, mount, path);
 220   xbt_fifo_push(action->simcalls, simcall);
 221   simcall->issuer->waiting_action = action;
 222 }
 223 smx_action_t SIMIX_file_ls(smx_process_t process, const char* mount, const char *path)
 224 {
 225   smx_action_t action;
 226   smx_host_t host = process->smx_host;
 227   /* check if the host is active */
 228   if (surf_resource_get_state(surf_workstation_resource_priv(host)) != SURF_RESOURCE_ON) {
 229     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
 230            sg_host_name(host));
 231   }
 232
 233   action = xbt_mallocator_get(simix_global->action_mallocator);
 234   action->type = SIMIX_ACTION_IO;
 235   action->name = NULL;
 236 #ifdef HAVE_TRACING
 237   action->category = NULL;
 238 #endif
 239
 240   action->io.host = host;
 241   action->io.surf_io = surf_workstation_ls(host,mount,path);
 242
 243   surf_action_set_data(action->io.surf_io, action);
 244   XBT_DEBUG("Create io action %p", action);
 245   return action;
 246 }
 247
 248 sg_size_t SIMIX_pre_file_get_size(smx_simcall_t simcall, smx_file_t fd)
 249 {
 250   return SIMIX_file_get_size(simcall->issuer, fd);
 251 }
 252
 253 sg_size_t SIMIX_file_get_size(smx_process_t process, smx_file_t fd)
 254 {
 255   smx_host_t host = process->smx_host;
 256   return  surf_workstation_get_size(host, fd->surf_file);
 257 }
 258
 259 sg_size_t SIMIX_pre_file_tell(smx_simcall_t simcall, smx_file_t fd)
 260 {
 261   return SIMIX_file_tell(simcall->issuer, fd);
 262 }
 263
 264 sg_size_t SIMIX_file_tell(smx_process_t process, smx_file_t fd)
 265 {
 266   smx_host_t host = process->smx_host;
 267   return  surf_workstation_file_tell(host, fd->surf_file);
 268 }
 269
 270
 271 xbt_dynar_t SIMIX_pre_file_get_info(smx_simcall_t simcall, smx_file_t fd)
 272 {
 273   return SIMIX_file_get_info(simcall->issuer, fd);
 274 }
 275
 276 xbt_dynar_t SIMIX_file_get_info(smx_process_t process, smx_file_t fd)
 277 {
 278   smx_host_t host = process->smx_host;
 279   return  surf_workstation_get_info(host, fd->surf_file);
 280 }
 281
 282 int SIMIX_pre_file_seek(smx_simcall_t simcall, smx_file_t fd, sg_size_t offset, int origin)
 283 {
 284   return SIMIX_file_seek(simcall->issuer, fd, offset, origin);
 285 }
 286
 287 int SIMIX_file_seek(smx_process_t process, smx_file_t fd, sg_size_t offset, int origin)
 288 {
 289   smx_host_t host = process->smx_host;
 290   return  surf_workstation_file_seek(host, fd->surf_file, offset, origin);
 291 }
 292
 293 int SIMIX_pre_file_move(smx_simcall_t simcall, smx_file_t file, const char* fullpath)
 294 {
 295   return SIMIX_file_move(simcall->issuer, file, fullpath);
 296 }
 297
 298 int SIMIX_file_move(smx_process_t process, smx_file_t file, const char* fullpath)
 299 {
 300   smx_host_t host = process->smx_host;
 301   return  surf_workstation_file_move(host, file->surf_file, fullpath);
 302 }
 303
 304 int SIMIX_pre_file_rcopy(smx_simcall_t simcall, smx_file_t fd, smx_host_t host, const char* fullpath)
 305 {
 306   return SIMIX_file_rcopy(simcall->issuer, fd, host, fullpath);
 307 }
 308
 309 int SIMIX_file_rcopy(smx_process_t process, smx_file_t file, smx_host_t host_dest, const char* fullpath)
 310 {
 311   smx_host_t host = process->smx_host;
 312   return  surf_workstation_file_rcopy(host, file->surf_file, host_dest, fullpath);
 313 }
 314
 315 sg_size_t SIMIX_pre_storage_get_free_size(smx_simcall_t simcall, const char* name)
 316 {
 317   return SIMIX_storage_get_free_size(simcall->issuer, name);
 318 }
 319
 320 sg_size_t SIMIX_storage_get_free_size(smx_process_t process, const char* name)
 321 {
 322   smx_host_t host = process->smx_host;
 323   return  surf_workstation_get_free_size(host, name);
 324 }
 325
 326 sg_size_t SIMIX_pre_storage_get_used_size(smx_simcall_t simcall, const char* name)
 327 {
 328   return SIMIX_storage_get_used_size(simcall->issuer, name);
 329 }
 330
 331 sg_size_t SIMIX_storage_get_used_size(smx_process_t process, const char* name)
 332 {
 333   smx_host_t host = process->smx_host;
 334   return  surf_workstation_get_used_size(host, name);
 335 }
 336
 337 xbt_dict_t SIMIX_pre_storage_get_properties(smx_simcall_t simcall, smx_storage_t storage){
 338   return SIMIX_storage_get_properties(storage);
 339 }
 340 xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage){
 341   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 342   return surf_resource_get_properties(surf_storage_resource_priv(storage));
 343 }
 344
 345 const char* SIMIX_pre_storage_get_name(smx_simcall_t simcall, smx_storage_t storage){
 346    return SIMIX_storage_get_name(storage);
 347 }
 348
 349 const char* SIMIX_storage_get_name(smx_storage_t storage){
 350   xbt_assert((storage != NULL), "Invalid parameters");
 351   return sg_storage_name(storage);
 352 }
 353
 354 xbt_dict_t SIMIX_pre_storage_get_content(smx_simcall_t simcall, smx_storage_t storage){
 355   return SIMIX_storage_get_content(storage);
 356 }
 357
 358 xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage){
 359   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 360   return surf_storage_get_content(storage);
 361 }
 362
 363 sg_size_t SIMIX_storage_get_size(smx_storage_t storage){
 364   xbt_assert((storage != NULL), "Invalid parameters (simix storage is NULL)");
 365   return surf_storage_get_size(storage);
 366 }
 367
 368 const char* SIMIX_pre_storage_get_host(smx_simcall_t simcall, smx_storage_t storage){
 369    return SIMIX_storage_get_host(storage);
 370 }
 371
 372 const char* SIMIX_storage_get_host(smx_storage_t storage){
 373   xbt_assert((storage != NULL), "Invalid parameters");
 374   return surf_storage_get_host(storage);
 375 }
 376
 377 void SIMIX_post_io(smx_action_t action)
 378 {
 379   xbt_fifo_item_t i;
 380   smx_simcall_t simcall;
 381 //  char* key;
 382 //  xbt_dict_cursor_t cursor = NULL;
 383 //  s_file_stat_t *dst = NULL;
 384 //  s_file_stat_t *src = NULL;
 385
 386   xbt_fifo_foreach(action->simcalls,i,simcall,smx_simcall_t) {
 387     switch (simcall->call) {
 388     case SIMCALL_FILE_OPEN: {
 389       smx_file_t tmp = xbt_new(s_smx_file_t,1);
 390       tmp->surf_file = surf_storage_action_get_file(action->io.surf_io);
 391       simcall_file_open__set__result(simcall, tmp);
 392       break;
 393     }
 394     case SIMCALL_FILE_CLOSE:
 395       xbt_free(simcall_file_close__get__fd(simcall));
 396       simcall_file_close__set__result(simcall, 0);
 397       break;
 398     case SIMCALL_FILE_WRITE:
 399       simcall_file_write__set__result(simcall, surf_action_get_cost(action->io.surf_io));
 400       break;
 401
 402     case SIMCALL_FILE_READ:
 403       simcall_file_read__set__result(simcall, surf_action_get_cost(action->io.surf_io));
 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, surf_storage_action_get_ls_dict(action->io.surf_io));
 416       break;
 417     default:
 418       break;
 419     }
 420   }
 421
 422   switch (surf_action_get_state(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     surf_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_resource_get_state(surf_workstation_resource_priv(simcall->issuer->smx_host)) != SURF_RESOURCE_ON) {
 475       simcall->issuer->context->iwannadie = 1;
 476     }
 477
 478     simcall->issuer->waiting_action = NULL;
 479     SIMIX_simcall_answer(simcall);
 480   }
 481
 482   /* We no longer need it */
 483   SIMIX_io_destroy(action);
 484 }