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 IoImplPtr IoImpl::set_name(const std::string& name)
42 ActivityImpl::set_name(name);
46 IoImplPtr IoImpl::set_type(s4u::Io::OpType type)
52 IoImplPtr IoImpl::set_size(sg_size_t size)
58 IoImplPtr IoImpl::set_storage(resource::StorageImpl* storage)
64 IoImpl* IoImpl::start()
66 state_ = SIMIX_RUNNING;
67 surf_action_ = storage_->io_start(size_, type_);
68 surf_action_->set_data(this);
70 XBT_DEBUG("Create IO synchro %p %s", this, get_cname());
71 IoImpl::on_start(this);
78 XBT_VERB("This exec %p is canceled", this);
79 if (surf_action_ != nullptr)
80 surf_action_->cancel();
81 state_ = SIMIX_CANCELED;
84 double IoImpl::get_remaining()
86 return surf_action_ ? surf_action_->get_remains() : 0;
91 performed_ioops_ = surf_action_->get_cost();
92 switch (surf_action_->get_state()) {
93 case resource::Action::State::FAILED:
94 state_ = SIMIX_FAILED;
96 case resource::Action::State::FINISHED:
107 void IoImpl::finish()
109 for (smx_simcall_t const& simcall : simcalls_) {
112 /* do nothing, synchro done */
115 simcall->issuer->exception_ =
116 std::make_exception_ptr(simgrid::StorageFailureException(XBT_THROW_POINT, "Storage failed"));
119 simcall->issuer->exception_ =
120 std::make_exception_ptr(simgrid::CancelException(XBT_THROW_POINT, "I/O Canceled"));
123 xbt_die("Internal error in IoImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
126 simcall->issuer->waiting_synchro = nullptr;
127 if (simcall->issuer->get_host()->is_on())
128 SIMIX_simcall_answer(simcall);
130 simcall->issuer->context_->iwannadie = true;
137 xbt::signal<void(IoImplPtr)> IoImpl::on_start;
138 xbt::signal<void(IoImplPtr)> IoImpl::on_completion;
140 } // namespace activity
141 } // namespace kernel
142 } // namespace simgrid