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", host->cname());
  71
  72   simgrid::kernel::activity::Io *synchro = new simgrid::kernel::activity::Io();
  73   synchro->host = host;
  74   synchro->surf_io = surf_host_read(host, fd->surf_file, size);
  75
  76   synchro->surf_io->setData(synchro);
  77   XBT_DEBUG("Create io synchro %p", synchro);
  78
  79   return synchro;
  80 }
  81
  82 //SIMIX FILE WRITE
  83 void simcall_HANDLER_file_write(smx_simcall_t simcall, smx_file_t fd, sg_size_t size, sg_host_t host)
  84 {
  85   smx_activity_t synchro = SIMIX_file_write(fd,  size, host);
  86   synchro->simcalls.push_back(simcall);
  87   simcall->issuer->waiting_synchro = synchro;
  88 }
  89
  90 smx_activity_t SIMIX_file_write(smx_file_t fd, sg_size_t size, sg_host_t host)
  91 {
  92   if (host->isOff())
  93     THROWF(host_error, 0, "Host %s failed, you cannot call this function", host->cname());
  94
  95   simgrid::kernel::activity::Io *synchro = new simgrid::kernel::activity::Io();
  96   synchro->host = host;
  97   synchro->surf_io = surf_host_write(host, fd->surf_file, size);
  98   synchro->surf_io->setData(synchro);
  99   XBT_DEBUG("Create io synchro %p", synchro);
 100
 101   return synchro;
 102 }
 103
 104 //SIMIX FILE OPEN
 105 void simcall_HANDLER_file_open(smx_simcall_t simcall, const char* fullpath, sg_host_t host)
 106 {
 107   smx_activity_t synchro = SIMIX_file_open(fullpath, host);
 108   synchro->simcalls.push_back(simcall);
 109   simcall->issuer->waiting_synchro = synchro;
 110 }
 111
 112 smx_activity_t SIMIX_file_open(const char* fullpath, sg_host_t host)
 113 {
 114   if (host->isOff())
 115     THROWF(host_error, 0, "Host %s failed, you cannot call this function", host->cname());
 116
 117   simgrid::kernel::activity::Io *synchro = new simgrid::kernel::activity::Io();
 118   synchro->host = host;
 119   synchro->surf_io = surf_host_open(host, fullpath);
 120   synchro->surf_io->setData(synchro);
 121   XBT_DEBUG("Create io synchro %p", synchro);
 122
 123   return synchro;
 124 }
 125
 126 //SIMIX FILE CLOSE
 127 void simcall_HANDLER_file_close(smx_simcall_t simcall, smx_file_t fd, sg_host_t host)
 128 {
 129   smx_activity_t synchro = SIMIX_file_close(fd, host);
 130   synchro->simcalls.push_back(simcall);
 131   simcall->issuer->waiting_synchro = synchro;
 132 }
 133
 134 smx_activity_t SIMIX_file_close(smx_file_t fd, sg_host_t host)
 135 {
 136   if (host->isOff())
 137     THROWF(host_error, 0, "Host %s failed, you cannot call this function", host->cname());
 138
 139   simgrid::kernel::activity::Io *synchro = new simgrid::kernel::activity::Io();
 140   synchro->host = host;
 141   synchro->surf_io = surf_host_close(host, fd->surf_file);
 142   synchro->surf_io->setData(synchro);
 143   XBT_DEBUG("Create io synchro %p", synchro);
 144
 145   return synchro;
 146 }
 147
 148 //SIMIX FILE UNLINK
 149 int SIMIX_file_unlink(smx_file_t fd, sg_host_t host)
 150 {
 151   if (host->isOff())
 152     THROWF(host_error, 0, "Host %s failed, you cannot call this function", host->cname());
 153
 154   int res = surf_host_unlink(host, fd->surf_file);
 155   xbt_free(fd);
 156   return res;
 157 }
 158
 159 sg_size_t simcall_HANDLER_file_get_size(smx_simcall_t simcall, smx_file_t fd)
 160 {
 161   return SIMIX_file_get_size(simcall->issuer, fd);
 162 }
 163
 164 sg_size_t SIMIX_file_get_size(smx_actor_t process, smx_file_t fd)
 165 {
 166   sg_host_t host = process->host;
 167   return  surf_host_get_size(host, fd->surf_file);
 168 }
 169
 170 sg_size_t simcall_HANDLER_file_tell(smx_simcall_t simcall, smx_file_t fd)
 171 {
 172   return SIMIX_file_tell(simcall->issuer, fd);
 173 }
 174
 175 sg_size_t SIMIX_file_tell(smx_actor_t process, smx_file_t fd)
 176 {
 177   sg_host_t host = process->host;
 178   return  surf_host_file_tell(host, fd->surf_file);
 179 }
 180
 181
 182 xbt_dynar_t simcall_HANDLER_file_get_info(smx_simcall_t simcall, smx_file_t fd)
 183 {
 184   return SIMIX_file_get_info(simcall->issuer, fd);
 185 }
 186
 187 xbt_dynar_t SIMIX_file_get_info(smx_actor_t process, smx_file_t fd)
 188 {
 189   sg_host_t host = process->host;
 190   return  surf_host_get_info(host, fd->surf_file);
 191 }
 192
 193 int simcall_HANDLER_file_seek(smx_simcall_t simcall, smx_file_t fd, sg_offset_t offset, int origin)
 194 {
 195   return SIMIX_file_seek(simcall->issuer, fd, offset, origin);
 196 }
 197
 198 int SIMIX_file_seek(smx_actor_t process, smx_file_t fd, sg_offset_t offset, int origin)
 199 {
 200   sg_host_t host = process->host;
 201   return  surf_host_file_seek(host, fd->surf_file, offset, origin);
 202 }
 203
 204 int simcall_HANDLER_file_move(smx_simcall_t simcall, smx_file_t file, const char* fullpath)
 205 {
 206   return SIMIX_file_move(simcall->issuer, file, fullpath);
 207 }
 208
 209 int SIMIX_file_move(smx_actor_t process, smx_file_t file, const char* fullpath)
 210 {
 211   sg_host_t host = process->host;
 212   return  surf_host_file_move(host, file->surf_file, fullpath);
 213 }
 214
 215 sg_size_t SIMIX_storage_get_size(smx_storage_t storage){
 216   return surf_storage_get_size(storage);
 217 }
 218
 219 sg_size_t simcall_HANDLER_storage_get_free_size(smx_simcall_t simcall, smx_storage_t storage)
 220 {
 221   return SIMIX_storage_get_free_size(simcall->issuer, storage);
 222 }
 223
 224 sg_size_t SIMIX_storage_get_free_size(smx_actor_t process, smx_storage_t storage)
 225 {
 226   return  surf_storage_get_free_size(storage);
 227 }
 228
 229 sg_size_t simcall_HANDLER_storage_get_used_size(smx_simcall_t simcall, smx_storage_t storage)
 230 {
 231   return SIMIX_storage_get_used_size(simcall->issuer, storage);
 232 }
 233
 234 sg_size_t SIMIX_storage_get_used_size(smx_actor_t process, smx_storage_t storage)
 235 {
 236   return  surf_storage_get_used_size(storage);
 237 }
 238
 239 xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage){
 240   return surf_storage_get_properties(storage);
 241 }
 242
 243 const char* SIMIX_storage_get_name(smx_storage_t storage){
 244   return sg_storage_name(storage);
 245 }
 246
 247 xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage){
 248   return surf_storage_get_content(storage);
 249 }
 250
 251 const char* SIMIX_storage_get_host(smx_storage_t storage){
 252   return surf_storage_get_host(storage);
 253 }
 254
 255 void SIMIX_io_destroy(smx_activity_t synchro)
 256 {
 257   simgrid::kernel::activity::Io *io = static_cast<simgrid::kernel::activity::Io*>(synchro);
 258   XBT_DEBUG("Destroy synchro %p", synchro);
 259   if (io->surf_io)
 260     io->surf_io->unref();
 261   delete io;
 262 }
 263
 264 void SIMIX_io_finish(smx_activity_t synchro)
 265 {
 266   for (smx_simcall_t simcall : synchro->simcalls) {
 267     switch (synchro->state) {
 268       case SIMIX_DONE:
 269         /* do nothing, synchro done */
 270         break;
 271       case SIMIX_FAILED:
 272         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
 273         break;
 274       case SIMIX_CANCELED:
 275         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 276         break;
 277       default:
 278         xbt_die("Internal error in SIMIX_io_finish: unexpected synchro state %d", static_cast<int>(synchro->state));
 279     }
 280
 281     if (simcall->issuer->host->isOff()) {
 282       simcall->issuer->context->iwannadie = 1;
 283     }
 284
 285     simcall->issuer->waiting_synchro = nullptr;
 286     SIMIX_simcall_answer(simcall);
 287   }
 288
 289   /* We no longer need it */
 290   SIMIX_io_destroy(synchro);
 291 }