-/* Copyright (c) 2007-2018. 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 "src/kernel/activity/IoImpl.hpp"
+#include "mc/mc.h"
+#include "simgrid/Exception.hpp"
#include "simgrid/kernel/resource/Action.hpp"
-#include "src/simix/smx_io_private.hpp"
+#include "simgrid/s4u/Host.hpp"
+#include "src/mc/mc_replay.hpp"
+#include "src/simix/smx_private.hpp"
+#include "src/surf/StorageImpl.hpp"
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_io);
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
-simgrid::kernel::activity::IoImpl::IoImpl(std::string name, resource::Action* surf_action, s4u::Storage* storage)
- : ActivityImpl(name), storage_(storage), surf_action_(surf_action)
+void simcall_HANDLER_io_wait(smx_simcall_t simcall, simgrid::kernel::activity::IoImpl* synchro)
{
- this->state_ = SIMIX_RUNNING;
+ XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro, (int)synchro->state_);
- surf_action_->set_data(this);
+ /* Associate this simcall to the synchro */
+ synchro->simcalls_.push_back(simcall);
+ simcall->issuer->waiting_synchro = synchro;
- XBT_DEBUG("Create exec %p", this);
-}
+ /* set surf's synchro */
+ if (MC_is_active() || MC_record_replay_is_active()) {
+ synchro->state_ = SIMIX_DONE;
+ synchro->finish();
+ return;
+ }
-simgrid::kernel::activity::IoImpl::~IoImpl()
-{
- if (surf_action_)
- surf_action_->unref();
- XBT_DEBUG("Destroy exec %p", this);
+ /* If the synchro is already finished then perform the error handling */
+ if (synchro->state_ != SIMIX_RUNNING)
+ synchro->finish();
}
-void simgrid::kernel::activity::IoImpl::cancel()
+namespace simgrid {
+namespace kernel {
+namespace activity {
+
+IoImpl& IoImpl::set_type(s4u::Io::OpType type)
{
- XBT_VERB("This exec %p is canceled", this);
- if (surf_action_ != nullptr)
- surf_action_->cancel();
+ type_ = type;
+ return *this;
}
-void simgrid::kernel::activity::IoImpl::suspend()
+IoImpl& IoImpl::set_size(sg_size_t size)
{
- if (surf_action_ != nullptr)
- surf_action_->suspend();
+ size_ = size;
+ return *this;
}
-void simgrid::kernel::activity::IoImpl::resume()
+IoImpl& IoImpl::set_storage(resource::StorageImpl* storage)
{
- if (surf_action_ != nullptr)
- surf_action_->resume();
+ storage_ = storage;
+ return *this;
}
-double simgrid::kernel::activity::IoImpl::get_remaining()
+IoImpl* IoImpl::start()
{
- return surf_action_ ? surf_action_->get_remains() : 0;
+ state_ = SIMIX_RUNNING;
+ surf_action_ = storage_->io_start(size_, type_);
+ surf_action_->set_data(this);
+
+ XBT_DEBUG("Create IO synchro %p %s", this, get_cname());
+ IoImpl::on_start(*this);
+
+ return this;
}
-void simgrid::kernel::activity::IoImpl::post()
+void IoImpl::post()
{
- for (smx_simcall_t const& simcall : simcalls_) {
- switch (simcall->call) {
- case SIMCALL_STORAGE_WRITE:
- simcall_storage_write__set__result(simcall, surf_action_->get_cost());
- break;
- case SIMCALL_STORAGE_READ:
- simcall_storage_read__set__result(simcall, surf_action_->get_cost());
- break;
- default:
- break;
- }
- }
-
+ performed_ioops_ = surf_action_->get_cost();
switch (surf_action_->get_state()) {
- case simgrid::kernel::resource::Action::State::FAILED:
+ case resource::Action::State::FAILED:
state_ = SIMIX_FAILED;
break;
- case simgrid::kernel::resource::Action::State::FINISHED:
+ case resource::Action::State::FINISHED:
state_ = SIMIX_DONE;
break;
default:
THROW_IMPOSSIBLE;
- break;
}
+ on_completion(*this);
- SIMIX_io_finish(this);
+ finish();
}
+
+void IoImpl::finish()
+{
+ for (smx_simcall_t const& simcall : simcalls_) {
+ switch (state_) {
+ case SIMIX_DONE:
+ /* do nothing, synchro done */
+ break;
+ case SIMIX_FAILED:
+ simcall->issuer->exception_ =
+ std::make_exception_ptr(simgrid::StorageFailureException(XBT_THROW_POINT, "Storage failed"));
+ break;
+ case SIMIX_CANCELED:
+ simcall->issuer->exception_ =
+ std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "I/O Canceled"));
+ break;
+ default:
+ xbt_die("Internal error in IoImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
+ }
+
+ simcall->issuer->waiting_synchro = nullptr;
+ if (simcall->issuer->get_host()->is_on())
+ SIMIX_simcall_answer(simcall);
+ else
+ simcall->issuer->context_->iwannadie = true;
+ }
+}
+
/*************
* Callbacks *
*************/
-simgrid::xbt::signal<void(simgrid::kernel::activity::IoImplPtr)> simgrid::kernel::activity::IoImpl::on_creation;
-simgrid::xbt::signal<void(simgrid::kernel::activity::IoImplPtr)> simgrid::kernel::activity::IoImpl::on_completion;
+xbt::signal<void(IoImpl const&)> IoImpl::on_start;
+xbt::signal<void(IoImpl const&)> IoImpl::on_completion;
+
+} // namespace activity
+} // namespace kernel
+} // namespace simgrid