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