1 /* Copyright (c) 2007-2021. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
5 #include "src/kernel/activity/IoImpl.hpp"
7 #include "simgrid/Exception.hpp"
8 #include "simgrid/kernel/resource/Action.hpp"
9 #include "simgrid/s4u/Host.hpp"
10 #include "simgrid/s4u/Io.hpp"
11 #include "src/kernel/resource/DiskImpl.hpp"
12 #include "src/mc/mc_replay.hpp"
13 #include "src/simix/smx_private.hpp"
14 #include "src/surf/cpu_interface.hpp"
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
24 piface_ = new s4u::Io(this);
27 IoImpl& IoImpl::set_timeout(double timeout)
29 const s4u::Host* host = get_disk()->get_host();
30 timeout_detector_ = host->pimpl_cpu->sleep(timeout);
31 timeout_detector_->set_activity(this);
35 IoImpl& IoImpl::set_type(s4u::Io::OpType type)
41 IoImpl& IoImpl::set_size(sg_size_t size)
47 IoImpl& IoImpl::set_disk(resource::DiskImpl* disk)
53 IoImpl* IoImpl::start()
55 state_ = State::RUNNING;
56 surf_action_ = disk_->io_start(size_, type_);
57 surf_action_->set_activity(this);
59 XBT_DEBUG("Create IO synchro %p %s", this, get_cname());
66 performed_ioops_ = surf_action_->get_cost();
67 if (surf_action_->get_state() == resource::Action::State::FAILED) {
68 if (disk_ && not disk_->is_on())
69 state_ = State::FAILED;
71 state_ = State::CANCELED;
72 } else if (timeout_detector_ && timeout_detector_->get_state() == resource::Action::State::FINISHED) {
73 if (surf_action_->get_remains() > 0.0) {
74 surf_action_->set_state(resource::Action::State::FAILED);
75 state_ = State::TIMEOUT;
84 if (timeout_detector_) {
85 timeout_detector_->unref();
86 timeout_detector_ = nullptr;
89 /* Answer all simcalls associated with the synchro */
95 XBT_DEBUG("IoImpl::finish() in state %s", to_c_str(state_));
96 while (not simcalls_.empty()) {
97 const s_smx_simcall* simcall = simcalls_.front();
98 simcalls_.pop_front();
101 simcall->issuer_->context_->set_wannadie();
102 simcall->issuer_->exception_ =
103 std::make_exception_ptr(StorageFailureException(XBT_THROW_POINT, "Storage failed"));
105 case State::CANCELED:
106 simcall->issuer_->exception_ = std::make_exception_ptr(CancelException(XBT_THROW_POINT, "I/O Canceled"));
109 simcall->issuer_->exception_ = std::make_exception_ptr(TimeoutException(XBT_THROW_POINT, "Timeouted"));
112 xbt_assert(state_ == State::DONE, "Internal error in IoImpl::finish(): unexpected synchro state %s",
116 simcall->issuer_->waiting_synchro_ = nullptr;
117 simcall->issuer_->simcall_answer();
121 } // namespace activity
122 } // namespace kernel
123 } // namespace simgrid