src/simix/smx_io.cpp

   1 /* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #include <xbt/ex.hpp>
   7 #include <xbt/sysdep.h>
   8 #include <xbt/log.h>
   9 #include <xbt/dict.h>
  10
  11 #include "simgrid/s4u/Host.hpp"
  12 #include "simgrid/s4u/Storage.hpp"
  13 #include "src/surf/StorageImpl.hpp"
  14
  15 #include <mc/mc.h>
  16
  17 #include "src/surf/surf_interface.hpp"
  18 #include "smx_private.h"
  19
  20 #include "src/kernel/activity/SynchroIo.hpp"
  21
  22 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
  23
  24 //SIMIX FILE READ
  25 void simcall_HANDLER_file_read(smx_simcall_t simcall, smx_file_t fd, sg_size_t size, sg_host_t host)
  26 {
  27   smx_activity_t synchro = SIMIX_file_read(fd, size, host);
  28   synchro->simcalls.push_back(simcall);
  29   simcall->issuer->waiting_synchro = synchro;
  30 }
  31
  32 smx_activity_t SIMIX_file_read(smx_file_t fd, sg_size_t size, sg_host_t host)
  33 {
  34   /* check if the host is active */
  35   if (host->isOff())
  36     THROWF(host_error, 0, "Host %s failed, you cannot call this function", host->cname());
  37
  38   simgrid::kernel::activity::IoImpl* synchro = new simgrid::kernel::activity::IoImpl();
  39   synchro->host = host;
  40   synchro->surf_io = surf_host_read(host, fd->surf_file, size);
  41
  42   synchro->surf_io->setData(synchro);
  43   XBT_DEBUG("Create io synchro %p", synchro);
  44
  45   return synchro;
  46 }
  47
  48 //SIMIX FILE WRITE
  49 void simcall_HANDLER_file_write(smx_simcall_t simcall, smx_file_t fd, sg_size_t size, sg_host_t host)
  50 {
  51   smx_activity_t synchro = SIMIX_file_write(fd,  size, host);
  52   synchro->simcalls.push_back(simcall);
  53   simcall->issuer->waiting_synchro = synchro;
  54 }
  55
  56 smx_activity_t SIMIX_file_write(smx_file_t fd, sg_size_t size, sg_host_t host)
  57 {
  58   if (host->isOff())
  59     THROWF(host_error, 0, "Host %s failed, you cannot call this function", host->cname());
  60
  61   simgrid::kernel::activity::IoImpl* synchro = new simgrid::kernel::activity::IoImpl();
  62   synchro->host = host;
  63   synchro->surf_io = surf_host_write(host, fd->surf_file, size);
  64   synchro->surf_io->setData(synchro);
  65   XBT_DEBUG("Create io synchro %p", synchro);
  66
  67   return synchro;
  68 }
  69
  70 //SIMIX FILE OPEN
  71 void simcall_HANDLER_file_open(smx_simcall_t simcall, const char* mount, const char* path, sg_storage_t st)
  72 {
  73   smx_activity_t synchro = SIMIX_file_open(mount, path, st);
  74   synchro->simcalls.push_back(simcall);
  75   simcall->issuer->waiting_synchro = synchro;
  76 }
  77
  78 smx_activity_t SIMIX_file_open(const char* mount, const char* path, sg_storage_t st)
  79 {
  80   if (st->host()->isOff())
  81     THROWF(host_error, 0, "Host %s failed, you cannot call this function", st->host()->cname());
  82
  83   simgrid::kernel::activity::IoImpl* synchro = new simgrid::kernel::activity::IoImpl();
  84   synchro->host                              = st->host();
  85   synchro->surf_io                           = st->pimpl_->open(mount, path);
  86   synchro->surf_io->setData(synchro);
  87   XBT_DEBUG("Create io synchro %p", synchro);
  88
  89   return synchro;
  90 }
  91
  92 //SIMIX FILE CLOSE
  93 void simcall_HANDLER_file_close(smx_simcall_t simcall, smx_file_t fd, sg_host_t host)
  94 {
  95   smx_activity_t synchro = SIMIX_file_close(fd, host);
  96   synchro->simcalls.push_back(simcall);
  97   simcall->issuer->waiting_synchro = synchro;
  98 }
  99
 100 smx_activity_t SIMIX_file_close(smx_file_t fd, sg_host_t host)
 101 {
 102   if (host->isOff())
 103     THROWF(host_error, 0, "Host %s failed, you cannot call this function", host->cname());
 104
 105   simgrid::kernel::activity::IoImpl* synchro = new simgrid::kernel::activity::IoImpl();
 106   synchro->host = host;
 107   synchro->surf_io = surf_host_close(host, fd->surf_file);
 108   synchro->surf_io->setData(synchro);
 109   XBT_DEBUG("Create io synchro %p", synchro);
 110
 111   return synchro;
 112 }
 113
 114 //SIMIX FILE UNLINK
 115 int SIMIX_file_unlink(smx_file_t fd, sg_host_t host)
 116 {
 117   if (host->isOff())
 118     THROWF(host_error, 0, "Host %s failed, you cannot call this function", host->cname());
 119
 120   int res = surf_host_unlink(host, fd->surf_file);
 121   xbt_free(fd);
 122   return res;
 123 }
 124
 125 sg_size_t simcall_HANDLER_file_get_size(smx_simcall_t simcall, smx_file_t fd)
 126 {
 127   return SIMIX_file_get_size(simcall->issuer, fd);
 128 }
 129
 130 sg_size_t SIMIX_file_get_size(smx_actor_t process, smx_file_t fd)
 131 {
 132   sg_host_t host = process->host;
 133   return  surf_host_get_size(host, fd->surf_file);
 134 }
 135
 136 sg_size_t simcall_HANDLER_file_tell(smx_simcall_t simcall, smx_file_t fd)
 137 {
 138   return SIMIX_file_tell(simcall->issuer, fd);
 139 }
 140
 141 sg_size_t SIMIX_file_tell(smx_actor_t process, smx_file_t fd)
 142 {
 143   sg_host_t host = process->host;
 144   return  surf_host_file_tell(host, fd->surf_file);
 145 }
 146
 147 int simcall_HANDLER_file_seek(smx_simcall_t simcall, smx_file_t fd, sg_offset_t offset, int origin)
 148 {
 149   return SIMIX_file_seek(simcall->issuer, fd, offset, origin);
 150 }
 151
 152 int SIMIX_file_seek(smx_actor_t process, smx_file_t fd, sg_offset_t offset, int origin)
 153 {
 154   sg_host_t host = process->host;
 155   return  surf_host_file_seek(host, fd->surf_file, offset, origin);
 156 }
 157
 158 int simcall_HANDLER_file_move(smx_simcall_t simcall, smx_file_t file, const char* fullpath)
 159 {
 160   return SIMIX_file_move(simcall->issuer, file, fullpath);
 161 }
 162
 163 int SIMIX_file_move(smx_actor_t process, smx_file_t file, const char* fullpath)
 164 {
 165   sg_host_t host = process->host;
 166   return  surf_host_file_move(host, file->surf_file, fullpath);
 167 }
 168
 169 void SIMIX_io_destroy(smx_activity_t synchro)
 170 {
 171   simgrid::kernel::activity::IoImplPtr io = boost::static_pointer_cast<simgrid::kernel::activity::IoImpl>(synchro);
 172   XBT_DEBUG("Destroy synchro %p", synchro.get());
 173   if (io->surf_io)
 174     io->surf_io->unref();
 175 }
 176
 177 void SIMIX_io_finish(smx_activity_t synchro)
 178 {
 179   for (smx_simcall_t simcall : synchro->simcalls) {
 180     switch (synchro->state) {
 181       case SIMIX_DONE:
 182         /* do nothing, synchro done */
 183         break;
 184       case SIMIX_FAILED:
 185         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
 186         break;
 187       case SIMIX_CANCELED:
 188         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 189         break;
 190       default:
 191         xbt_die("Internal error in SIMIX_io_finish: unexpected synchro state %d", static_cast<int>(synchro->state));
 192     }
 193
 194     if (simcall->issuer->host->isOff()) {
 195       simcall->issuer->context->iwannadie = 1;
 196     }
 197
 198     simcall->issuer->waiting_synchro = nullptr;
 199     SIMIX_simcall_answer(simcall);
 200   }
 201
 202   /* We no longer need it */
 203   SIMIX_io_destroy(synchro);
 204 }