#include "simgrid/Exception.hpp"
#include "simgrid/kernel/resource/Action.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)");
-void simcall_HANDLER_io_wait(smx_simcall_t simcall, simgrid::kernel::activity::IoImpl* synchro)
+void simcall_HANDLER_io_wait(smx_simcall_t simcall, simgrid::kernel::activity::IoImpl* synchro, double timeout)
{
XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro, (int)synchro->state_);
/* Associate this simcall to the synchro */
- synchro->simcalls_.push_back(simcall);
- simcall->issuer->waiting_synchro = synchro;
+ synchro->register_simcall(simcall);
- /* set surf's synchro */
if (MC_is_active() || MC_record_replay_is_active()) {
- synchro->state_ = SIMIX_DONE;
+ int idx = SIMCALL_GET_MC_VALUE(*simcall);
+ if (idx == 0) {
+ synchro->state_ = simgrid::kernel::activity::State::DONE;
+ } else {
+ /* If we reached this point, the wait simcall must have a timeout */
+ /* Otherwise it shouldn't be enabled and executed by the MC */
+ if (timeout < 0.0)
+ THROW_IMPOSSIBLE;
+ synchro->state_ = simgrid::kernel::activity::State::TIMEOUT;
+ }
synchro->finish();
- return;
}
/* If the synchro is already finished then perform the error handling */
- if (synchro->state_ != SIMIX_RUNNING)
+ if (synchro->state_ != simgrid::kernel::activity::State::RUNNING)
+ synchro->finish();
+ else {
+ /* we need a sleep action (even when there is no timeout) to be notified of host failures */
+ if (synchro->get_disk() != nullptr)
+ synchro->timeout_detector_ = synchro->get_disk()->get_host()->pimpl_cpu->sleep(timeout);
+ else
+ synchro->timeout_detector_ =
+ simgrid::s4u::Host::by_name(synchro->get_storage()->get_host())->pimpl_cpu->sleep(timeout);
+ synchro->timeout_detector_->set_activity(synchro);
+ }
+}
+
+void simcall_HANDLER_io_test(smx_simcall_t simcall, simgrid::kernel::activity::IoImpl* synchro)
+{
+ bool res = (synchro->state_ != simgrid::kernel::activity::State::WAITING &&
+ synchro->state_ != simgrid::kernel::activity::State::RUNNING);
+ if (res) {
+ synchro->simcalls_.push_back(simcall);
synchro->finish();
+ } else {
+ simcall->issuer_->simcall_answer();
+ }
+ simcall_io_test__set__result(simcall, res);
}
namespace simgrid {
namespace kernel {
namespace activity {
-IoImplPtr IoImpl::set_name(const std::string& name)
+IoImpl& IoImpl::set_type(s4u::Io::OpType type)
{
- ActivityImpl::set_name(name);
- return this;
+ type_ = type;
+ return *this;
}
-IoImplPtr IoImpl::set_type(s4u::Io::OpType type)
+IoImpl& IoImpl::set_size(sg_size_t size)
{
- type_ = type;
- return this;
+ size_ = size;
+ return *this;
}
-IoImplPtr IoImpl::set_size(sg_size_t size)
+IoImpl& IoImpl::set_disk(resource::DiskImpl* disk)
{
- size_ = size;
- return this;
+ disk_ = disk;
+ return *this;
}
-IoImplPtr IoImpl::set_storage(resource::StorageImpl* storage)
+IoImpl& IoImpl::set_storage(resource::StorageImpl* storage)
{
storage_ = storage;
- return this;
+ return *this;
}
IoImpl* IoImpl::start()
{
- state_ = SIMIX_RUNNING;
- surf_action_ = storage_->io_start(size_, type_);
- surf_action_->set_data(this);
+ 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);
+ IoImpl::on_start(*this);
return this;
}
-void IoImpl::cancel()
-{
- XBT_VERB("This exec %p is canceled", this);
- if (surf_action_ != nullptr)
- surf_action_->cancel();
- state_ = SIMIX_CANCELED;
-}
-
-double IoImpl::get_remaining()
-{
- return surf_action_ ? surf_action_->get_remains() : 0;
-}
-
void IoImpl::post()
{
performed_ioops_ = surf_action_->get_cost();
- switch (surf_action_->get_state()) {
- case resource::Action::State::FAILED:
- state_ = SIMIX_FAILED;
- break;
- case resource::Action::State::FINISHED:
- state_ = SIMIX_DONE;
- break;
- default:
- THROW_IMPOSSIBLE;
+ 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;
+ }
+
+ if (timeout_detector_) {
+ timeout_detector_->unref();
+ timeout_detector_ = nullptr;
}
- on_completion(this);
+ on_completion(*this);
+
+ /* Answer all simcalls associated with the synchro */
finish();
}
void IoImpl::finish()
{
- for (smx_simcall_t const& simcall : simcalls_) {
+ while (not simcalls_.empty()) {
+ const s_smx_simcall* simcall = simcalls_.front();
+ simcalls_.pop_front();
switch (state_) {
- case SIMIX_DONE:
+ case State::DONE:
/* do nothing, synchro done */
break;
- case SIMIX_FAILED:
- simcall->issuer->exception_ =
- std::make_exception_ptr(simgrid::StorageFailureException(XBT_THROW_POINT, "Storage failed"));
+ case State::FAILED:
+ simcall->issuer_->context_->iwannadie = true;
+ 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 SIMIX_CANCELED:
- simcall->issuer->exception_ =
- std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "I/O Canceled"));
+ 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;
- if (simcall->issuer->get_host()->is_on())
- SIMIX_simcall_answer(simcall);
- else
- simcall->issuer->context_->iwannadie = true;
+ 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
