X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7dd253f0ff4dda733dd0f7c924a25df4b777f0d0..255700918582111f0aacaa7b7fed87dcedc1a840:/src/kernel/activity/IoImpl.cpp diff --git a/src/kernel/activity/IoImpl.cpp b/src/kernel/activity/IoImpl.cpp index d9d5719ed2..a6dcf3ae78 100644 --- a/src/kernel/activity/IoImpl.cpp +++ b/src/kernel/activity/IoImpl.cpp @@ -1,71 +1,58 @@ -/* 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 "src/kernel/activity/IoImpl.hpp" + +#include +#include +#include +#include + #include "mc/mc.h" -#include "simgrid/Exception.hpp" -#include "simgrid/kernel/resource/Action.hpp" -#include "simgrid/s4u/Host.hpp" +#include "src/kernel/activity/IoImpl.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" -#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, double timeout) -{ - XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro, (int)synchro->state_); - - /* Associate this simcall to the synchro */ - synchro->register_simcall(simcall); +namespace simgrid { +namespace kernel { +namespace activity { - if (MC_is_active() || MC_record_replay_is_active()) { - 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(); +IoImpl::IoImpl() +{ + piface_ = new s4u::Io(this); + actor::ActorImpl* self = actor::ActorImpl::self(); + if (self) { + actor_ = self; + self->activities_.emplace_back(this); } +} - /* If the synchro is already finished then perform the error handling */ - 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); - } +IoImpl& IoImpl::set_sharing_penalty(double sharing_penalty) +{ + sharing_penalty_ = sharing_penalty; + return *this; } -void simcall_HANDLER_io_test(smx_simcall_t simcall, simgrid::kernel::activity::IoImpl* synchro) +IoImpl& IoImpl::update_sharing_penalty(double sharing_penalty) { - 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); + sharing_penalty_ = sharing_penalty; + surf_action_->set_sharing_penalty(sharing_penalty); + return *this; } -namespace simgrid { -namespace kernel { -namespace activity { +IoImpl& IoImpl::set_timeout(double timeout) +{ + const s4u::Host* host = get_disk()->get_host(); + timeout_detector_ = host->get_cpu()->sleep(timeout); + timeout_detector_->set_activity(this); + return *this; +} IoImpl& IoImpl::set_type(s4u::Io::OpType type) { @@ -85,23 +72,15 @@ IoImpl& IoImpl::set_disk(resource::DiskImpl* disk) return *this; } -IoImpl& IoImpl::set_storage(resource::StorageImpl* storage) -{ - storage_ = storage; - return *this; -} - IoImpl* IoImpl::start() { state_ = State::RUNNING; - if (storage_) - surf_action_ = storage_->io_start(size_, type_); - else - surf_action_ = disk_->io_start(size_, type_); + 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()); - IoImpl::on_start(*this); return this; } @@ -110,62 +89,114 @@ void IoImpl::post() { performed_ioops_ = surf_action_->get_cost(); if (surf_action_->get_state() == resource::Action::State::FAILED) { - if ((storage_ && not storage_->is_on()) || (disk_ && not disk_->is_on())) + if (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 (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); - /* 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 State::CANCELED: + issuer->exception_ = std::make_exception_ptr(CancelException(XBT_THROW_POINT, "I/O Canceled")); + break; + 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()) { - const s_smx_simcall* simcall = simcalls_.front(); + smx_simcall_t simcall = simcalls_.front(); simcalls_.pop_front(); - switch (state_) { - case State::DONE: - /* do nothing, synchro done */ - break; - 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 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(state_)); + + /* 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); + } } - simcall->issuer_->waiting_synchro = nullptr; + set_exception(simcall->issuer_); + + simcall->issuer_->waiting_synchro_ = nullptr; simcall->issuer_->simcall_answer(); } } -/************* - * Callbacks * - *************/ -xbt::signal IoImpl::on_start; -xbt::signal IoImpl::on_completion; +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(); + }); + } + + 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; + } + } +} } // namespace activity } // namespace kernel