-/* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2021. 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"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_io);
+#include "simgrid/s4u/Host.hpp"
+#include "simgrid/s4u/Io.hpp"
+#include "src/kernel/resource/DiskImpl.hpp"
+#include "src/mc/mc_replay.hpp"
+#include "src/simix/smx_private.hpp"
+#include "src/surf/cpu_interface.hpp"
-simgrid::kernel::activity::IoImpl::IoImpl(std::string name, resource::Action* surf_action, s4u::Storage* storage)
- : ActivityImpl(name), storage_(storage), surf_action_(surf_action)
-{
- this->state_ = SIMIX_RUNNING;
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
- surf_action_->set_data(this);
+namespace simgrid {
+namespace kernel {
+namespace activity {
- XBT_DEBUG("Create exec %p", this);
+IoImpl::IoImpl()
+{
+ piface_ = new s4u::Io(this);
}
-simgrid::kernel::activity::IoImpl::~IoImpl()
+IoImpl& IoImpl::set_timeout(double timeout)
{
- if (surf_action_ != nullptr)
- surf_action_->unref();
- XBT_DEBUG("Destroy exec %p", this);
+ const s4u::Host* host = get_disk()->get_host();
+ timeout_detector_ = host->pimpl_cpu->sleep(timeout);
+ timeout_detector_->set_activity(this);
+ return *this;
}
-void simgrid::kernel::activity::IoImpl::cancel()
+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_disk(resource::DiskImpl* disk)
{
- if (surf_action_ != nullptr)
- surf_action_->resume();
+ disk_ = disk;
+ return *this;
}
-double simgrid::kernel::activity::IoImpl::get_remaining()
+IoImpl* IoImpl::start()
{
- return surf_action_ ? surf_action_->get_remains() : 0;
+ state_ = State::RUNNING;
+ surf_action_ = disk_->io_start(size_, type_);
+ surf_action_->set_activity(this);
+
+ XBT_DEBUG("Create IO synchro %p %s", this, get_cname());
+
+ return this;
}
-void simgrid::kernel::activity::IoImpl::post()
+void IoImpl::post()
{
performed_ioops_ = surf_action_->get_cost();
- switch (surf_action_->get_state()) {
- case simgrid::kernel::resource::Action::State::FAILED:
- state_ = SIMIX_FAILED;
- break;
- case simgrid::kernel::resource::Action::State::FINISHED:
- state_ = SIMIX_DONE;
- break;
- default:
- THROW_IMPOSSIBLE;
- break;
+ if (surf_action_->get_state() == resource::Action::State::FAILED) {
+ if (disk_ && not disk_->is_on())
+ state_ = State::FAILED;
+ else
+ state_ = State::CANCELED;
+ } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
+ if (surf_action_->get_remains() > 0.0) {
+ surf_action_->set_state(resource::Action::State::FAILED);
+ state_ = State::TIMEOUT;
+ } else {
+ state_ = State::DONE;
+ }
+ } else {
+ state_ = State::DONE;
+ }
+
+ clean_action();
+ if (timeout_detector_) {
+ timeout_detector_->unref();
+ timeout_detector_ = nullptr;
}
- on_completion(this);
- SIMIX_io_finish(this);
+ /* Answer all simcalls associated with the synchro */
+ finish();
}
-/*************
- * 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;
+
+void IoImpl::finish()
+{
+ XBT_DEBUG("IoImpl::finish() in state %s", to_c_str(state_));
+ while (not simcalls_.empty()) {
+ const s_smx_simcall* simcall = simcalls_.front();
+ simcalls_.pop_front();
+ switch (state_) {
+ case State::FAILED:
+ simcall->issuer_->context_->set_wannadie();
+ simcall->issuer_->exception_ =
+ std::make_exception_ptr(StorageFailureException(XBT_THROW_POINT, "Storage failed"));
+ break;
+ case State::CANCELED:
+ simcall->issuer_->exception_ = std::make_exception_ptr(CancelException(XBT_THROW_POINT, "I/O Canceled"));
+ break;
+ case State::TIMEOUT:
+ simcall->issuer_->exception_ = std::make_exception_ptr(simgrid::TimeoutException(XBT_THROW_POINT, "Timeouted"));
+ break;
+ default:
+ xbt_assert(state_ == State::DONE, "Internal error in IoImpl::finish(): unexpected synchro state %s",
+ to_c_str(state_));
+ }
+
+ simcall->issuer_->waiting_synchro_ = nullptr;
+ simcall->issuer_->simcall_answer();
+ }
+}
+
+} // namespace activity
+} // namespace kernel
+} // namespace simgrid