-/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2020. 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/kernel/resource/DiskImpl.hpp"
+#include "src/mc/mc_replay.hpp"
+#include "src/simix/smx_private.hpp"
#include "src/surf/StorageImpl.hpp"
+#include "src/surf/cpu_interface.hpp"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_io);
namespace simgrid {
namespace kernel {
namespace activity {
-IoImpl::IoImpl(std::string name, surf::StorageImpl* storage) : ActivityImpl(std::move(name)), storage_(storage)
+IoImpl& IoImpl::set_timeout(double timeout)
{
- this->state_ = SIMIX_RUNNING;
-
- XBT_DEBUG("Create io impl %p", this);
+ const s4u::Host* host = get_disk() ? get_disk()->get_host() : s4u::Host::by_name(get_storage()->get_host());
+ timeout_detector_ = host->pimpl_cpu->sleep(timeout);
+ timeout_detector_->set_activity(this);
+ return *this;
}
-IoImpl::~IoImpl()
+IoImpl& IoImpl::set_type(s4u::Io::OpType type)
{
- if (surf_action_ != nullptr)
- surf_action_->unref();
- XBT_DEBUG("Destroy io %p", this);
+ type_ = type;
+ return *this;
}
-IoImpl* IoImpl::start(sg_size_t size, simgrid::s4u::Io::OpType type)
+IoImpl& IoImpl::set_size(sg_size_t size)
{
- surf_action_ = storage_->io_start(size, type);
- surf_action_->set_data(this);
-
- XBT_DEBUG("Create IO synchro %p %s", this, get_cname());
- simgrid::kernel::activity::IoImpl::on_start(this);
+ size_ = size;
+ return *this;
+}
- return this;
+IoImpl& IoImpl::set_disk(resource::DiskImpl* disk)
+{
+ disk_ = disk;
+ return *this;
}
-void IoImpl::cancel()
+IoImpl& IoImpl::set_storage(resource::StorageImpl* storage)
{
- XBT_VERB("This exec %p is canceled", this);
- if (surf_action_ != nullptr)
- surf_action_->cancel();
- state_ = SIMIX_CANCELED;
+ storage_ = storage;
+ return *this;
}
-double IoImpl::get_remaining()
+IoImpl* IoImpl::start()
{
- return surf_action_ ? surf_action_->get_remains() : 0;
+ state_ = State::RUNNING;
+ if (storage_)
+ surf_action_ = storage_->io_start(size_, type_);
+ else
+ surf_action_ = disk_->io_start(size_, type_);
+ surf_action_->set_activity(this);
+
+ XBT_DEBUG("Create IO synchro %p %s", this, get_cname());
+ IoImpl::on_start(*this);
+
+ return this;
}
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 ((storage_ && not storage_->is_on()) || (disk_ && not disk_->is_on()))
+ state_ = State::FAILED;
+ else
+ state_ = State::CANCELED;
+ } else if (surf_action_->get_state() == resource::Action::State::FINISHED) {
+ state_ = State::DONE;
+ } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
+ state_ = State::TIMEOUT;
+ }
+
+ clean_action();
+ if (timeout_detector_) {
+ timeout_detector_->unref();
+ timeout_detector_ = nullptr;
}
- on_completion(this);
- SIMIX_io_finish(this);
+ on_completion(*this);
+
+ /* Answer all simcalls associated with the synchro */
+ finish();
+}
+
+void IoImpl::finish()
+{
+ while (not simcalls_.empty()) {
+ const s_smx_simcall* simcall = simcalls_.front();
+ simcalls_.pop_front();
+ switch (state_) {
+ case State::DONE:
+ /* do nothing, synchro done */
+ break;
+ 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:
+ XBT_DEBUG("IoImpl::finish(): execution timeouted");
+ simcall->issuer_->exception_ = std::make_exception_ptr(simgrid::TimeoutException(XBT_THROW_POINT, "Timeouted"));
+ break;
+ default:
+ xbt_die("Internal error in IoImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
+ }
+
+ simcall->issuer_->waiting_synchro_ = nullptr;
+ simcall->issuer_->simcall_answer();
+ }
}
+
/*************
* Callbacks *
*************/
-xbt::signal<void(IoImplPtr)> IoImpl::on_start;
-xbt::signal<void(IoImplPtr)> IoImpl::on_completion;
+xbt::signal<void(IoImpl const&)> IoImpl::on_start;
+xbt::signal<void(IoImpl const&)> IoImpl::on_completion;
} // namespace activity
} // namespace kernel
