src/simix/smx_io.cpp

   1 /* Copyright (c) 2007-2010, 2012-2015. 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 "src/surf/surf_interface.hpp"
   8 #include "smx_private.h"
   9 #include <xbt/ex.hpp>
  10 #include "xbt/sysdep.h"
  11 #include "xbt/log.h"
  12 #include "xbt/dict.h"
  13 #include "mc/mc.h"
  14
  15 #include "src/simix/SynchroIo.hpp"
  16
  17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
  18
  19
  20 /**
  21  * \brief Internal function to create a SIMIX storage.
  22  * \param name name of the storage to create
  23  * \param storage the SURF storage to encapsulate
  24  * \param data some user data (may be nullptr)
  25  */
  26 smx_storage_t SIMIX_storage_create(const char *name, void *storage, void *data)
  27 {
  28   smx_storage_priv_t smx_storage = xbt_new0(s_smx_storage_priv_t, 1);
  29
  30   smx_storage->data = data;
  31
  32   /* Update global variables */
  33   xbt_lib_set(storage_lib,name,SIMIX_STORAGE_LEVEL,smx_storage);
  34   return xbt_lib_get_elm_or_null(storage_lib, name);
  35 }
  36
  37 /**
  38  * \brief Internal function to destroy a SIMIX storage.
  39  *
  40  * \param s the host to destroy (a smx_storage_t)
  41  */
  42 void SIMIX_storage_destroy(void *s)
  43 {
  44   smx_storage_priv_t storage = (smx_storage_priv_t) s;
  45
  46   xbt_assert((storage != nullptr), "Invalid parameters");
  47   if (storage->data)
  48     free(storage->data);
  49
  50   /* Clean storage structure */
  51   free(storage);
  52 }
  53
  54 //SIMIX FILE READ
  55 void simcall_HANDLER_file_read(smx_simcall_t simcall, smx_file_t fd, sg_size_t size, sg_host_t host)
  56 {
  57   smx_synchro_t synchro = SIMIX_file_read(fd, size, host);
  58   synchro->simcalls.push_back(simcall);
  59   simcall->issuer->waiting_synchro = synchro;
  60 }
  61
  62 smx_synchro_t SIMIX_file_read(smx_file_t fd, sg_size_t size, sg_host_t host)
  63 {
  64   /* check if the host is active */
  65   if (host->isOff())
  66     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
  67
  68
  69   simgrid::simix::Io *synchro = new simgrid::simix::Io();
  70   synchro->host = host;
  71   synchro->surf_io = surf_host_read(host, fd->surf_file, size);
  72
  73   synchro->surf_io->setData(synchro);
  74   XBT_DEBUG("Create io synchro %p", synchro);
  75
  76   return synchro;
  77 }
  78
  79 //SIMIX FILE WRITE
  80 void simcall_HANDLER_file_write(smx_simcall_t simcall, smx_file_t fd, sg_size_t size, sg_host_t host)
  81 {
  82   smx_synchro_t synchro = SIMIX_file_write(fd,  size, host);
  83   synchro->simcalls.push_back(simcall);
  84   simcall->issuer->waiting_synchro = synchro;
  85 }
  86
  87 smx_synchro_t SIMIX_file_write(smx_file_t fd, sg_size_t size, sg_host_t host)
  88 {
  89   if (host->isOff())
  90     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
  91
  92   simgrid::simix::Io *synchro = new simgrid::simix::Io();
  93   synchro->host = host;
  94   synchro->surf_io = surf_host_write(host, fd->surf_file, size);
  95   synchro->surf_io->setData(synchro);
  96   XBT_DEBUG("Create io synchro %p", synchro);
  97
  98   return synchro;
  99 }
 100
 101 //SIMIX FILE OPEN
 102 void simcall_HANDLER_file_open(smx_simcall_t simcall, const char* fullpath, sg_host_t host)
 103 {
 104   smx_synchro_t synchro = SIMIX_file_open(fullpath, host);
 105   synchro->simcalls.push_back(simcall);
 106   simcall->issuer->waiting_synchro = synchro;
 107 }
 108
 109 smx_synchro_t SIMIX_file_open(const char* fullpath, sg_host_t host)
 110 {
 111   if (host->isOff())
 112     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
 113
 114   simgrid::simix::Io *synchro = new simgrid::simix::Io();
 115   synchro->host = host;
 116   synchro->surf_io = surf_host_open(host, fullpath);
 117   synchro->surf_io->setData(synchro);
 118   XBT_DEBUG("Create io synchro %p", synchro);
 119
 120   return synchro;
 121 }
 122
 123 //SIMIX FILE CLOSE
 124 void simcall_HANDLER_file_close(smx_simcall_t simcall, smx_file_t fd, sg_host_t host)
 125 {
 126   smx_synchro_t synchro = SIMIX_file_close(fd, host);
 127   synchro->simcalls.push_back(simcall);
 128   simcall->issuer->waiting_synchro = synchro;
 129 }
 130
 131 smx_synchro_t SIMIX_file_close(smx_file_t fd, sg_host_t host)
 132 {
 133   if (host->isOff())
 134     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
 135
 136   simgrid::simix::Io *synchro = new simgrid::simix::Io();
 137   synchro->host = host;
 138   synchro->surf_io = surf_host_close(host, fd->surf_file);
 139   synchro->surf_io->setData(synchro);
 140   XBT_DEBUG("Create io synchro %p", synchro);
 141
 142   return synchro;
 143 }
 144
 145
 146 //SIMIX FILE UNLINK
 147 int SIMIX_file_unlink(smx_file_t fd, sg_host_t host)
 148 {
 149   if (host->isOff())
 150     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
 151
 152   int res = surf_host_unlink(host, fd->surf_file);
 153   xbt_free(fd);
 154   return !!res;
 155 }
 156
 157 sg_size_t simcall_HANDLER_file_get_size(smx_simcall_t simcall, smx_file_t fd)
 158 {
 159   return SIMIX_file_get_size(simcall->issuer, fd);
 160 }
 161
 162 sg_size_t SIMIX_file_get_size(smx_process_t process, smx_file_t fd)
 163 {
 164   sg_host_t host = process->host;
 165   return  surf_host_get_size(host, fd->surf_file);
 166 }
 167
 168 sg_size_t simcall_HANDLER_file_tell(smx_simcall_t simcall, smx_file_t fd)
 169 {
 170   return SIMIX_file_tell(simcall->issuer, fd);
 171 }
 172
 173 sg_size_t SIMIX_file_tell(smx_process_t process, smx_file_t fd)
 174 {
 175   sg_host_t host = process->host;
 176   return  surf_host_file_tell(host, fd->surf_file);
 177 }
 178
 179
 180 xbt_dynar_t simcall_HANDLER_file_get_info(smx_simcall_t simcall, smx_file_t fd)
 181 {
 182   return SIMIX_file_get_info(simcall->issuer, fd);
 183 }
 184
 185 xbt_dynar_t SIMIX_file_get_info(smx_process_t process, smx_file_t fd)
 186 {
 187   sg_host_t host = process->host;
 188   return  surf_host_get_info(host, fd->surf_file);
 189 }
 190
 191 int simcall_HANDLER_file_seek(smx_simcall_t simcall, smx_file_t fd, sg_offset_t offset, int origin)
 192 {
 193   return SIMIX_file_seek(simcall->issuer, fd, offset, origin);
 194 }
 195
 196 int SIMIX_file_seek(smx_process_t process, smx_file_t fd, sg_offset_t offset, int origin)
 197 {
 198   sg_host_t host = process->host;
 199   return  surf_host_file_seek(host, fd->surf_file, offset, origin);
 200 }
 201
 202 int simcall_HANDLER_file_move(smx_simcall_t simcall, smx_file_t file, const char* fullpath)
 203 {
 204   return SIMIX_file_move(simcall->issuer, file, fullpath);
 205 }
 206
 207 int SIMIX_file_move(smx_process_t process, smx_file_t file, const char* fullpath)
 208 {
 209   sg_host_t host = process->host;
 210   return  surf_host_file_move(host, file->surf_file, fullpath);
 211 }
 212
 213 sg_size_t SIMIX_storage_get_size(smx_storage_t storage){
 214   return surf_storage_get_size(storage);
 215 }
 216
 217 sg_size_t simcall_HANDLER_storage_get_free_size(smx_simcall_t simcall, smx_storage_t storage)
 218 {
 219   return SIMIX_storage_get_free_size(simcall->issuer, storage);
 220 }
 221
 222 sg_size_t SIMIX_storage_get_free_size(smx_process_t process, smx_storage_t storage)
 223 {
 224   return  surf_storage_get_free_size(storage);
 225 }
 226
 227 sg_size_t simcall_HANDLER_storage_get_used_size(smx_simcall_t simcall, smx_storage_t storage)
 228 {
 229   return SIMIX_storage_get_used_size(simcall->issuer, storage);
 230 }
 231
 232 sg_size_t SIMIX_storage_get_used_size(smx_process_t process, smx_storage_t storage)
 233 {
 234   return  surf_storage_get_used_size(storage);
 235 }
 236
 237 xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage){
 238   return surf_storage_get_properties(storage);
 239 }
 240
 241 const char* SIMIX_storage_get_name(smx_storage_t storage){
 242   return sg_storage_name(storage);
 243 }
 244
 245 xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage){
 246   return surf_storage_get_content(storage);
 247 }
 248
 249 const char* SIMIX_storage_get_host(smx_storage_t storage){
 250   return surf_storage_get_host(storage);
 251 }
 252
 253 void SIMIX_post_io(smx_synchro_t synchro)
 254 {
 255 }
 256
 257 void SIMIX_io_destroy(smx_synchro_t synchro)
 258 {
 259   simgrid::simix::Io *io = static_cast<simgrid::simix::Io*>(synchro);
 260   XBT_DEBUG("Destroy synchro %p", synchro);
 261   if (io->surf_io)
 262     io->surf_io->unref();
 263   delete io;
 264 }
 265
 266 void SIMIX_io_finish(smx_synchro_t synchro)
 267 {
 268   for (smx_simcall_t simcall : synchro->simcalls) {
 269
 270     switch (synchro->state) {
 271
 272       case SIMIX_DONE:
 273         /* do nothing, synchro done */
 274         break;
 275
 276       case SIMIX_FAILED:
 277         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
 278         break;
 279
 280       case SIMIX_CANCELED:
 281         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 282         break;
 283
 284       default:
 285         xbt_die("Internal error in SIMIX_io_finish: unexpected synchro state %d",
 286             (int)synchro->state);
 287     }
 288
 289     if (simcall->issuer->host->isOff()) {
 290       simcall->issuer->context->iwannadie = 1;
 291     }
 292
 293     simcall->issuer->waiting_synchro = nullptr;
 294     SIMIX_simcall_answer(simcall);
 295   }
 296
 297   /* We no longer need it */
 298   SIMIX_io_destroy(synchro);
 299 }