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 <xbt/ex.hpp>
   8 #include <xbt/sysdep.h>
   9 #include <xbt/log.h>
  10 #include <xbt/dict.h>
  11
  12 #include <simgrid/s4u/host.hpp>
  13
  14 #include <mc/mc.h>
  15
  16 #include "src/surf/surf_interface.hpp"
  17 #include "smx_private.h"
  18
  19 #include "src/kernel/activity/SynchroIo.hpp"
  20
  21 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
  22
  23
  24 /**
  25  * \brief Internal function to create a SIMIX storage.
  26  * \param name name of the storage to create
  27  * \param storage the SURF storage to encapsulate
  28  * \param data some user data (may be nullptr)
  29  */
  30 smx_storage_t SIMIX_storage_create(const char *name, void *storage, void *data)
  31 {
  32   smx_storage_priv_t smx_storage = xbt_new0(s_smx_storage_priv_t, 1);
  33
  34   smx_storage->data = data;
  35
  36   /* Update global variables */
  37   xbt_lib_set(storage_lib,name,SIMIX_STORAGE_LEVEL,smx_storage);
  38   return xbt_lib_get_elm_or_null(storage_lib, name);
  39 }
  40
  41 /**
  42  * \brief Internal function to destroy a SIMIX storage.
  43  *
  44  * \param s the host to destroy (a smx_storage_t)
  45  */
  46 void SIMIX_storage_destroy(void *s)
  47 {
  48   smx_storage_priv_t storage = static_cast<smx_storage_priv_t>(s);
  49
  50   xbt_assert((storage != nullptr), "Invalid parameters");
  51   if (storage->data)
  52     free(storage->data);
  53
  54   /* Clean storage structure */
  55   free(storage);
  56 }
  57
  58 //SIMIX FILE READ
  59 void simcall_HANDLER_file_read(smx_simcall_t simcall, smx_file_t fd, sg_size_t size, sg_host_t host)
  60 {
  61   smx_activity_t synchro = SIMIX_file_read(fd, size, host);
  62   synchro->simcalls.push_back(simcall);
  63   simcall->issuer->waiting_synchro = synchro;
  64 }
  65
  66 smx_activity_t SIMIX_file_read(smx_file_t fd, sg_size_t size, sg_host_t host)
  67 {
  68   /* check if the host is active */
  69   if (host->isOff())
  70     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
  71
  72
  73   simgrid::kernel::activity::Io *synchro = new simgrid::kernel::activity::Io();
  74   synchro->host = host;
  75   synchro->surf_io = surf_host_read(host, fd->surf_file, size);
  76
  77   synchro->surf_io->setData(synchro);
  78   XBT_DEBUG("Create io synchro %p", synchro);
  79
  80   return synchro;
  81 }
  82
  83 //SIMIX FILE WRITE
  84 void simcall_HANDLER_file_write(smx_simcall_t simcall, smx_file_t fd, sg_size_t size, sg_host_t host)
  85 {
  86   smx_activity_t synchro = SIMIX_file_write(fd,  size, host);
  87   synchro->simcalls.push_back(simcall);
  88   simcall->issuer->waiting_synchro = synchro;
  89 }
  90
  91 smx_activity_t SIMIX_file_write(smx_file_t fd, sg_size_t size, sg_host_t host)
  92 {
  93   if (host->isOff())
  94     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
  95
  96   simgrid::kernel::activity::Io *synchro = new simgrid::kernel::activity::Io();
  97   synchro->host = host;
  98   synchro->surf_io = surf_host_write(host, fd->surf_file, size);
  99   synchro->surf_io->setData(synchro);
 100   XBT_DEBUG("Create io synchro %p", synchro);
 101
 102   return synchro;
 103 }
 104
 105 //SIMIX FILE OPEN
 106 void simcall_HANDLER_file_open(smx_simcall_t simcall, const char* fullpath, sg_host_t host)
 107 {
 108   smx_activity_t synchro = SIMIX_file_open(fullpath, host);
 109   synchro->simcalls.push_back(simcall);
 110   simcall->issuer->waiting_synchro = synchro;
 111 }
 112
 113 smx_activity_t SIMIX_file_open(const char* fullpath, sg_host_t host)
 114 {
 115   if (host->isOff())
 116     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
 117
 118   simgrid::kernel::activity::Io *synchro = new simgrid::kernel::activity::Io();
 119   synchro->host = host;
 120   synchro->surf_io = surf_host_open(host, fullpath);
 121   synchro->surf_io->setData(synchro);
 122   XBT_DEBUG("Create io synchro %p", synchro);
 123
 124   return synchro;
 125 }
 126
 127 //SIMIX FILE CLOSE
 128 void simcall_HANDLER_file_close(smx_simcall_t simcall, smx_file_t fd, sg_host_t host)
 129 {
 130   smx_activity_t synchro = SIMIX_file_close(fd, host);
 131   synchro->simcalls.push_back(simcall);
 132   simcall->issuer->waiting_synchro = synchro;
 133 }
 134
 135 smx_activity_t SIMIX_file_close(smx_file_t fd, sg_host_t host)
 136 {
 137   if (host->isOff())
 138     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
 139
 140   simgrid::kernel::activity::Io *synchro = new simgrid::kernel::activity::Io();
 141   synchro->host = host;
 142   synchro->surf_io = surf_host_close(host, fd->surf_file);
 143   synchro->surf_io->setData(synchro);
 144   XBT_DEBUG("Create io synchro %p", synchro);
 145
 146   return synchro;
 147 }
 148
 149 //SIMIX FILE UNLINK
 150 int SIMIX_file_unlink(smx_file_t fd, sg_host_t host)
 151 {
 152   if (host->isOff())
 153     THROWF(host_error, 0, "Host %s failed, you cannot call this function", sg_host_get_name(host));
 154
 155   int res = surf_host_unlink(host, fd->surf_file);
 156   xbt_free(fd);
 157   return res;
 158 }
 159
 160 sg_size_t simcall_HANDLER_file_get_size(smx_simcall_t simcall, smx_file_t fd)
 161 {
 162   return SIMIX_file_get_size(simcall->issuer, fd);
 163 }
 164
 165 sg_size_t SIMIX_file_get_size(smx_process_t process, smx_file_t fd)
 166 {
 167   sg_host_t host = process->host;
 168   return  surf_host_get_size(host, fd->surf_file);
 169 }
 170
 171 sg_size_t simcall_HANDLER_file_tell(smx_simcall_t simcall, smx_file_t fd)
 172 {
 173   return SIMIX_file_tell(simcall->issuer, fd);
 174 }
 175
 176 sg_size_t SIMIX_file_tell(smx_process_t process, smx_file_t fd)
 177 {
 178   sg_host_t host = process->host;
 179   return  surf_host_file_tell(host, fd->surf_file);
 180 }
 181
 182
 183 xbt_dynar_t simcall_HANDLER_file_get_info(smx_simcall_t simcall, smx_file_t fd)
 184 {
 185   return SIMIX_file_get_info(simcall->issuer, fd);
 186 }
 187
 188 xbt_dynar_t SIMIX_file_get_info(smx_process_t process, smx_file_t fd)
 189 {
 190   sg_host_t host = process->host;
 191   return  surf_host_get_info(host, fd->surf_file);
 192 }
 193
 194 int simcall_HANDLER_file_seek(smx_simcall_t simcall, smx_file_t fd, sg_offset_t offset, int origin)
 195 {
 196   return SIMIX_file_seek(simcall->issuer, fd, offset, origin);
 197 }
 198
 199 int SIMIX_file_seek(smx_process_t process, smx_file_t fd, sg_offset_t offset, int origin)
 200 {
 201   sg_host_t host = process->host;
 202   return  surf_host_file_seek(host, fd->surf_file, offset, origin);
 203 }
 204
 205 int simcall_HANDLER_file_move(smx_simcall_t simcall, smx_file_t file, const char* fullpath)
 206 {
 207   return SIMIX_file_move(simcall->issuer, file, fullpath);
 208 }
 209
 210 int SIMIX_file_move(smx_process_t process, smx_file_t file, const char* fullpath)
 211 {
 212   sg_host_t host = process->host;
 213   return  surf_host_file_move(host, file->surf_file, fullpath);
 214 }
 215
 216 sg_size_t SIMIX_storage_get_size(smx_storage_t storage){
 217   return surf_storage_get_size(storage);
 218 }
 219
 220 sg_size_t simcall_HANDLER_storage_get_free_size(smx_simcall_t simcall, smx_storage_t storage)
 221 {
 222   return SIMIX_storage_get_free_size(simcall->issuer, storage);
 223 }
 224
 225 sg_size_t SIMIX_storage_get_free_size(smx_process_t process, smx_storage_t storage)
 226 {
 227   return  surf_storage_get_free_size(storage);
 228 }
 229
 230 sg_size_t simcall_HANDLER_storage_get_used_size(smx_simcall_t simcall, smx_storage_t storage)
 231 {
 232   return SIMIX_storage_get_used_size(simcall->issuer, storage);
 233 }
 234
 235 sg_size_t SIMIX_storage_get_used_size(smx_process_t process, smx_storage_t storage)
 236 {
 237   return  surf_storage_get_used_size(storage);
 238 }
 239
 240 xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage){
 241   return surf_storage_get_properties(storage);
 242 }
 243
 244 const char* SIMIX_storage_get_name(smx_storage_t storage){
 245   return sg_storage_name(storage);
 246 }
 247
 248 xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage){
 249   return surf_storage_get_content(storage);
 250 }
 251
 252 const char* SIMIX_storage_get_host(smx_storage_t storage){
 253   return surf_storage_get_host(storage);
 254 }
 255
 256 void SIMIX_io_destroy(smx_activity_t synchro)
 257 {
 258   simgrid::kernel::activity::Io *io = static_cast<simgrid::kernel::activity::Io*>(synchro);
 259   XBT_DEBUG("Destroy synchro %p", synchro);
 260   if (io->surf_io)
 261     io->surf_io->unref();
 262   delete io;
 263 }
 264
 265 void SIMIX_io_finish(smx_activity_t synchro)
 266 {
 267   for (smx_simcall_t simcall : synchro->simcalls) {
 268     switch (synchro->state) {
 269       case SIMIX_DONE:
 270         /* do nothing, synchro done */
 271         break;
 272       case SIMIX_FAILED:
 273         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
 274         break;
 275       case SIMIX_CANCELED:
 276         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 277         break;
 278       default:
 279         xbt_die("Internal error in SIMIX_io_finish: unexpected synchro state %d", static_cast<int>(synchro->state));
 280     }
 281
 282     if (simcall->issuer->host->isOff()) {
 283       simcall->issuer->context->iwannadie = 1;
 284     }
 285
 286     simcall->issuer->waiting_synchro = nullptr;
 287     SIMIX_simcall_answer(simcall);
 288   }
 289
 290   /* We no longer need it */
 291   SIMIX_io_destroy(synchro);
 292 }