X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/d07491b881cc0dd542507d598e1099f178b79c59..255700918582111f0aacaa7b7fed87dcedc1a840:/src/kernel/activity/IoImpl.cpp diff --git a/src/kernel/activity/IoImpl.cpp b/src/kernel/activity/IoImpl.cpp index 0f8a3ed701..a6dcf3ae78 100644 --- a/src/kernel/activity/IoImpl.cpp +++ b/src/kernel/activity/IoImpl.cpp @@ -1,78 +1,202 @@ -/* Copyright (c) 2007-2019. 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 +#include +#include +#include + +#include "mc/mc.h" #include "src/kernel/activity/IoImpl.hpp" -#include "simgrid/kernel/resource/Action.hpp" -#include "src/simix/smx_io_private.hpp" -#include "src/surf/StorageImpl.hpp" +#include "src/kernel/actor/ActorImpl.hpp" +#include "src/kernel/actor/SimcallObserver.hpp" +#include "src/kernel/context/Context.hpp" +#include "src/kernel/resource/CpuImpl.hpp" +#include "src/kernel/resource/DiskImpl.hpp" +#include "src/mc/mc_replay.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() { - this->state_ = SIMIX_RUNNING; + piface_ = new s4u::Io(this); + actor::ActorImpl* self = actor::ActorImpl::self(); + if (self) { + actor_ = self; + self->activities_.emplace_back(this); + } +} - XBT_DEBUG("Create io impl %p", this); +IoImpl& IoImpl::set_sharing_penalty(double sharing_penalty) +{ + sharing_penalty_ = sharing_penalty; + return *this; } -IoImpl::~IoImpl() +IoImpl& IoImpl::update_sharing_penalty(double sharing_penalty) { - if (surf_action_ != nullptr) - surf_action_->unref(); - XBT_DEBUG("Destroy io %p", this); + sharing_penalty_ = sharing_penalty; + surf_action_->set_sharing_penalty(sharing_penalty); + return *this; } -IoImpl* IoImpl::start(sg_size_t size, simgrid::s4u::Io::OpType type) +IoImpl& IoImpl::set_timeout(double timeout) { - surf_action_ = storage_->io_start(size, type); - surf_action_->set_data(this); + const s4u::Host* host = get_disk()->get_host(); + timeout_detector_ = host->get_cpu()->sleep(timeout); + timeout_detector_->set_activity(this); + return *this; +} - XBT_DEBUG("Create IO synchro %p %s", this, get_cname()); - simgrid::kernel::activity::IoImpl::on_start(this); +IoImpl& IoImpl::set_type(s4u::Io::OpType type) +{ + type_ = type; + return *this; +} - return this; +IoImpl& IoImpl::set_size(sg_size_t size) +{ + size_ = size; + return *this; } -void IoImpl::cancel() +IoImpl& IoImpl::set_disk(resource::DiskImpl* disk) { - XBT_VERB("This exec %p is canceled", this); - if (surf_action_ != nullptr) - surf_action_->cancel(); + disk_ = disk; + return *this; } -double IoImpl::get_remaining() +IoImpl* IoImpl::start() { - return surf_action_ ? surf_action_->get_remains() : 0; + state_ = State::RUNNING; + surf_action_ = + disk_->get_host()->get_netpoint()->get_englobing_zone()->get_disk_model()->io_start(disk_, size_, type_); + surf_action_->set_sharing_penalty(sharing_penalty_); + surf_action_->set_activity(this); + + XBT_DEBUG("Create IO synchro %p %s", this, get_cname()); + + 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; + 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; + } + + /* Answer all simcalls associated with the synchro */ + finish(); +} +void IoImpl::set_exception(actor::ActorImpl* issuer) +{ + switch (state_) { + case State::FAILED: + issuer->context_->set_wannadie(); + piface_->complete(s4u::Activity::State::FAILED); + issuer->exception_ = std::make_exception_ptr(StorageFailureException(XBT_THROW_POINT, "Storage failed")); break; - case simgrid::kernel::resource::Action::State::FINISHED: - state_ = SIMIX_DONE; + case State::CANCELED: + issuer->exception_ = std::make_exception_ptr(CancelException(XBT_THROW_POINT, "I/O Canceled")); break; - default: - THROW_IMPOSSIBLE; + case State::TIMEOUT: + issuer->exception_ = std::make_exception_ptr(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_)); + } +} + +void IoImpl::finish() +{ + XBT_DEBUG("IoImpl::finish() in state %s", to_c_str(state_)); + while (not simcalls_.empty()) { + smx_simcall_t simcall = simcalls_.front(); + simcalls_.pop_front(); + + /* If a waitany simcall is waiting for this synchro to finish, then remove it from the other synchros in the waitany + * list. Afterwards, get the position of the actual synchro in the waitany list and return it as the result of the + * simcall */ + + if (simcall->call_ == simix::Simcall::NONE) // FIXME: maybe a better way to handle this case + continue; // if process handling comm is killed + if (auto* observer = dynamic_cast(simcall->observer_)) { // simcall is a wait_any? + const auto& ios = observer->get_ios(); + + for (auto* io : ios) { + io->unregister_simcall(simcall); + + if (simcall->timeout_cb_) { + simcall->timeout_cb_->remove(); + simcall->timeout_cb_ = nullptr; + } + } + + if (not MC_is_active() && not MC_record_replay_is_active()) { + auto element = std::find(ios.begin(), ios.end(), this); + int rank = element != ios.end() ? static_cast(std::distance(ios.begin(), element)) : -1; + observer->set_result(rank); + } + } + + set_exception(simcall->issuer_); + + simcall->issuer_->waiting_synchro_ = nullptr; + simcall->issuer_->simcall_answer(); + } +} + +void IoImpl::wait_any_for(actor::ActorImpl* issuer, const std::vector& ios, double timeout) +{ + if (timeout < 0.0) { + issuer->simcall_.timeout_cb_ = nullptr; + } else { + issuer->simcall_.timeout_cb_ = timer::Timer::set(s4u::Engine::get_clock() + timeout, [issuer, &ios]() { + issuer->simcall_.timeout_cb_ = nullptr; + for (auto* io : ios) + io->unregister_simcall(&issuer->simcall_); + // default result (-1) is set in actor::IoWaitanySimcall + issuer->simcall_answer(); + }); } - on_completion(this); - SIMIX_io_finish(this); + for (auto* io : ios) { + /* associate this simcall to the the synchro */ + io->simcalls_.push_back(&issuer->simcall_); + + /* see if the synchro is already finished */ + if (io->state_ != State::WAITING && io->state_ != State::RUNNING) { + io->finish(); + break; + } + } } -/************* - * Callbacks * - *************/ -xbt::signal IoImpl::on_start; -xbt::signal IoImpl::on_completion; } // namespace activity } // namespace kernel