1 /* Copyright (c) 2007-2019. 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 "src/mc/mc_replay.hpp"
11 #include "src/simix/smx_private.hpp"
12 #include "src/surf/StorageImpl.hpp"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
16 void simcall_HANDLER_io_wait(smx_simcall_t simcall, simgrid::kernel::activity::IoImpl* synchro)
18 XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro, (int)synchro->state_);
20 /* Associate this simcall to the synchro */
21 synchro->simcalls_.push_back(simcall);
22 simcall->issuer->waiting_synchro = synchro;
24 /* set surf's synchro */
25 if (MC_is_active() || MC_record_replay_is_active()) {
26 synchro->state_ = SIMIX_DONE;
31 /* If the synchro is already finished then perform the error handling */
32 if (synchro->state_ != SIMIX_RUNNING)
40 IoImpl& IoImpl::set_type(s4u::Io::OpType type)
46 IoImpl& IoImpl::set_size(sg_size_t size)
52 IoImpl& IoImpl::set_storage(resource::StorageImpl* storage)
58 IoImpl* IoImpl::start()
60 state_ = SIMIX_RUNNING;
61 surf_action_ = storage_->io_start(size_, type_);
62 surf_action_->set_data(this);
64 XBT_DEBUG("Create IO synchro %p %s", this, get_cname());
65 IoImpl::on_start(*this);
72 XBT_VERB("This exec %p is canceled", this);
73 if (surf_action_ != nullptr)
74 surf_action_->cancel();
75 state_ = SIMIX_CANCELED;
78 double IoImpl::get_remaining()
80 return surf_action_ ? surf_action_->get_remains() : 0;
85 performed_ioops_ = surf_action_->get_cost();
86 switch (surf_action_->get_state()) {
87 case resource::Action::State::FAILED:
88 state_ = SIMIX_FAILED;
90 case resource::Action::State::FINISHED:
101 void IoImpl::finish()
103 for (smx_simcall_t const& simcall : simcalls_) {
106 /* do nothing, synchro done */
109 simcall->issuer->exception_ =
110 std::make_exception_ptr(simgrid::StorageFailureException(XBT_THROW_POINT, "Storage failed"));
113 simcall->issuer->exception_ =
114 std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "I/O Canceled"));
117 xbt_die("Internal error in IoImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
120 simcall->issuer->waiting_synchro = nullptr;
121 if (simcall->issuer->get_host()->is_on())
122 SIMIX_simcall_answer(simcall);
124 simcall->issuer->context_->iwannadie = true;
131 xbt::signal<void(IoImpl const&)> IoImpl::on_start;
132 xbt::signal<void(IoImpl const&)> IoImpl::on_completion;
134 } // namespace activity
135 } // namespace kernel
136 } // namespace simgrid