X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/29a3b2869c0075fc75e8ccc66fc1d9c4c8bf6a85..5ed37babb2fa9097abe82df299c0aa259ed84d5a:/src/kernel/activity/IoImpl.cpp diff --git a/src/kernel/activity/IoImpl.cpp b/src/kernel/activity/IoImpl.cpp index d762815da7..21b55c90ed 100644 --- a/src/kernel/activity/IoImpl.cpp +++ b/src/kernel/activity/IoImpl.cpp @@ -1,75 +1,197 @@ -/* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2007-2023. 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/kernel/actor/ActorImpl.hpp" +#include "src/kernel/actor/SimcallObserver.hpp" +#include "src/kernel/resource/CpuImpl.hpp" +#include "src/kernel/resource/DiskImpl.hpp" +#include "src/mc/mc_replay.hpp" +#include "src/surf/HostImpl.hpp" + +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ker_io, kernel, "Kernel io-related synchronization"); + +namespace simgrid::kernel::activity { -XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(simix_io); +IoImpl::IoImpl() +{ + piface_ = new s4u::Io(this); + actor::ActorImpl* self = actor::ActorImpl::self(); + if (self) { + set_actor(self); + self->activities_.insert(this); + } +} -simgrid::kernel::activity::IoImpl::IoImpl(std::string name, resource::Action* surf_action, s4u::Storage* storage) - : ActivityImpl(name), storage_(storage), surf_action_(surf_action) +IoImpl& IoImpl::set_sharing_penalty(double sharing_penalty) { - this->state_ = SIMIX_RUNNING; + sharing_penalty_ = sharing_penalty; + return *this; +} - surf_action_->set_data(this); +IoImpl& IoImpl::update_sharing_penalty(double sharing_penalty) +{ + sharing_penalty_ = sharing_penalty; + surf_action_->set_sharing_penalty(sharing_penalty); + return *this; +} - XBT_DEBUG("Create io %p", this); +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; } -simgrid::kernel::activity::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; } -void simgrid::kernel::activity::IoImpl::cancel() +IoImpl& IoImpl::set_size(sg_size_t size) { - XBT_VERB("This exec %p is canceled", this); - if (surf_action_ != nullptr) - surf_action_->cancel(); + size_ = size; + return *this; } -void simgrid::kernel::activity::IoImpl::suspend() +IoImpl& IoImpl::set_disk(resource::DiskImpl* disk) { - if (surf_action_ != nullptr) - surf_action_->suspend(); + disk_ = disk; + return *this; } -void simgrid::kernel::activity::IoImpl::resume() +IoImpl& IoImpl::set_host(s4u::Host* host) { - if (surf_action_ != nullptr) - surf_action_->resume(); + host_ = host; + return *this; } -double simgrid::kernel::activity::IoImpl::get_remaining() +IoImpl& IoImpl::set_dst_disk(resource::DiskImpl* disk) { - return surf_action_ ? surf_action_->get_remains() : 0; + dst_disk_ = disk; + return *this; } -void simgrid::kernel::activity::IoImpl::post() +IoImpl& IoImpl::set_dst_host(s4u::Host* host) +{ + dst_host_ = host; + return *this; +} + +IoImpl* IoImpl::start() +{ + set_state(State::RUNNING); + if (dst_host_ == nullptr) { + XBT_DEBUG("Starting regular I/O"); + surf_action_ = disk_->io_start(size_, type_); + surf_action_->set_sharing_penalty(sharing_penalty_); + } else { + XBT_DEBUG("Starting streaming I/O"); + auto host_model = dst_host_->get_netpoint()->get_englobing_zone()->get_host_model(); + surf_action_ = host_model->io_stream(host_, disk_, dst_host_, dst_disk_, size_); + } + + surf_action_->set_activity(this); + set_start_time(surf_action_->get_start_time()); + + 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 (host_ && dst_host_) { // this is an I/O stream + if (not host_->is_on()) + set_state(State::SRC_HOST_FAILURE); + else if (not dst_host_->is_on()) + set_state(State::DST_HOST_FAILURE); + } else if ((disk_ && not disk_->is_on()) || (dst_disk_ && not dst_disk_->is_on())) + set_state(State::FAILED); + else + set_state(State::CANCELED); + } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED && + surf_action_->get_remains() > 0.0) { + surf_action_->set_state(resource::Action::State::FAILED); + set_state(State::TIMEOUT); + } else { + set_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 (get_state()) { + case State::FAILED: + issuer->set_wannadie(); + static_cast(get_iface())->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::SRC_HOST_FAILURE: + case State::DST_HOST_FAILURE: + issuer->set_wannadie(); + static_cast(get_iface())->complete(s4u::Activity::State::FAILED); + issuer->exception_ = std::make_exception_ptr(StorageFailureException(XBT_THROW_POINT, "Host failed")); + break; + case State::TIMEOUT: + issuer->exception_ = std::make_exception_ptr(TimeoutException(XBT_THROW_POINT, "Timeouted")); break; + default: + xbt_assert(get_state() == State::DONE, "Internal error in IoImpl::finish(): unexpected synchro state %s", + get_state_str()); } - on_completion(this); +} + +void IoImpl::finish() +{ + XBT_DEBUG("IoImpl::finish() in state %s", get_state_str()); + while (not simcalls_.empty()) { + actor::Simcall* 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 */ - SIMIX_io_finish(this); + if (simcall->call_ == actor::Simcall::Type::NONE) // FIXME: maybe a better way to handle this case + continue; // if process handling comm is killed + + handle_activity_waitany(simcall); + + if (not simcall->issuer_->get_host()->is_on()) { + simcall->issuer_->set_wannadie(); + } else { + // Do not answer to dying actors + if (not simcall->issuer_->wannadie()) { + set_exception(simcall->issuer_); + simcall->issuer_->waiting_synchro_ = nullptr; + simcall->issuer_->simcall_answer(); + } + } + } } -/************* - * Callbacks * - *************/ -simgrid::xbt::signal simgrid::kernel::activity::IoImpl::on_creation; -simgrid::xbt::signal simgrid::kernel::activity::IoImpl::on_completion; + +} // namespace simgrid::kernel::activity