X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2807fde4fd1f59c230d69a934634c5dfb77905f2..4141cd9660259caa66e2e9af10873e53402b4812:/src/simix/smx_io.cpp

diff --git a/src/simix/smx_io.cpp b/src/simix/smx_io.cpp
index 39c13a1913..4b8ecbc42f 100644
--- a/src/simix/smx_io.cpp
+++ b/src/simix/smx_io.cpp
@@ -1,93 +1,64 @@
-/* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
-#include <xbt/ex.hpp>
-#include <xbt/sysdep.h>
-#include <xbt/log.h>
-
+#include "mc/mc.h"
+#include "simgrid/Exception.hpp"
 #include "simgrid/s4u/Host.hpp"
-#include "simgrid/s4u/Storage.hpp"
-#include "src/surf/HostImpl.hpp"
-#include "src/surf/StorageImpl.hpp"
-#include "surf/surf.hpp"
+#include "simgrid/s4u/Io.hpp"
 
 #include "smx_private.hpp"
-#include "src/surf/surf_interface.hpp"
-
-#include "src/kernel/activity/SynchroIo.hpp"
+#include "src/kernel/activity/IoImpl.hpp"
+#include "src/mc/mc_replay.hpp"
+#include "src/simix/smx_io_private.hpp"
+#include "src/surf/StorageImpl.hpp"
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
 
-void simcall_HANDLER_storage_read(smx_simcall_t simcall, surf_storage_t st, sg_size_t size)
+void simcall_HANDLER_io_wait(smx_simcall_t simcall, smx_activity_t synchro)
 {
-  smx_activity_t synchro = SIMIX_storage_read(st, size);
-  synchro->simcalls.push_back(simcall);
-  simcall->issuer->waiting_synchro = synchro;
-}
-
-smx_activity_t SIMIX_storage_read(surf_storage_t st, sg_size_t size)
-{
-  simgrid::kernel::activity::IoImpl* synchro = new simgrid::kernel::activity::IoImpl();
-  synchro->surf_io                           = st->read(size);
-
-  synchro->surf_io->setData(synchro);
-  XBT_DEBUG("Create io synchro %p", synchro);
-
-  return synchro;
-}
+  XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro.get(), (int)synchro->state_);
 
-void simcall_HANDLER_storage_write(smx_simcall_t simcall, surf_storage_t st, sg_size_t size)
-{
-  smx_activity_t synchro = SIMIX_storage_write(st, size);
-  synchro->simcalls.push_back(simcall);
+  /* Associate this simcall to the synchro */
+  synchro->simcalls_.push_back(simcall);
   simcall->issuer->waiting_synchro = synchro;
-}
 
-smx_activity_t SIMIX_storage_write(surf_storage_t st, sg_size_t size)
-{
-  simgrid::kernel::activity::IoImpl* synchro = new simgrid::kernel::activity::IoImpl();
-  synchro->surf_io                           = st->write(size);
-  synchro->surf_io->setData(synchro);
-  XBT_DEBUG("Create io synchro %p", synchro);
-
-  return synchro;
-}
+  /* set surf's synchro */
+  if (MC_is_active() || MC_record_replay_is_active()) {
+    synchro->state_ = SIMIX_DONE;
+    SIMIX_io_finish(synchro);
+    return;
+  }
 
-void SIMIX_io_destroy(smx_activity_t synchro)
-{
-  simgrid::kernel::activity::IoImplPtr io = boost::static_pointer_cast<simgrid::kernel::activity::IoImpl>(synchro);
-  XBT_DEBUG("Destroy synchro %p", synchro.get());
-  if (io->surf_io)
-    io->surf_io->unref();
+  /* If the synchro is already finished then perform the error handling */
+  if (synchro->state_ != SIMIX_RUNNING)
+    SIMIX_io_finish(synchro);
 }
 
 void SIMIX_io_finish(smx_activity_t synchro)
 {
-  for (smx_simcall_t const& simcall : synchro->simcalls) {
-    switch (synchro->state) {
+  for (smx_simcall_t const& simcall : synchro->simcalls_) {
+    switch (synchro->state_) {
       case SIMIX_DONE:
         /* do nothing, synchro done */
         break;
       case SIMIX_FAILED:
-        SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
+        simcall->issuer->exception_ =
+            std::make_exception_ptr(simgrid::StorageFailureException(XBT_THROW_POINT, "Storage failed"));
         break;
       case SIMIX_CANCELED:
-        SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
+        simcall->issuer->exception_ =
+            std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "I/O Canceled"));
         break;
       default:
-        xbt_die("Internal error in SIMIX_io_finish: unexpected synchro state %d", static_cast<int>(synchro->state));
-    }
-
-    if (simcall->issuer->host->isOff()) {
-      simcall->issuer->context->iwannadie = 1;
+        xbt_die("Internal error in SIMIX_io_finish: unexpected synchro state %d", static_cast<int>(synchro->state_));
     }
 
     simcall->issuer->waiting_synchro = nullptr;
-    SIMIX_simcall_answer(simcall);
+    if (simcall->issuer->get_host()->is_on())
+      SIMIX_simcall_answer(simcall);
+    else
+      simcall->issuer->context_->iwannadie = true;
   }
-
-  /* We no longer need it */
-  SIMIX_io_destroy(synchro);
 }