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/kernel/resource/DiskImpl.hpp"
11 #include "src/mc/mc_replay.hpp"
12 #include "src/simix/smx_private.hpp"
13 #include "src/surf/StorageImpl.hpp"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_io, simix, "Logging specific to SIMIX (io)");
17 void simcall_HANDLER_io_wait(smx_simcall_t simcall, simgrid::kernel::activity::IoImpl* synchro)
19 XBT_DEBUG("Wait for execution of synchro %p, state %d", synchro, (int)synchro->state_);
21 /* Associate this simcall to the synchro */
22 synchro->register_simcall(simcall);
24 if (MC_is_active() || MC_record_replay_is_active())
25 synchro->state_ = SIMIX_DONE;
27 /* If the synchro is already finished then perform the error handling */
28 if (synchro->state_ != SIMIX_RUNNING)
36 IoImpl& IoImpl::set_type(s4u::Io::OpType type)
42 IoImpl& IoImpl::set_size(sg_size_t size)
48 IoImpl& IoImpl::set_disk(resource::DiskImpl* disk)
54 IoImpl& IoImpl::set_storage(resource::StorageImpl* storage)
60 IoImpl* IoImpl::start()
62 state_ = SIMIX_RUNNING;
64 surf_action_ = storage_->io_start(size_, type_);
66 surf_action_ = disk_->io_start(size_, type_);
67 surf_action_->set_activity(this);
69 XBT_DEBUG("Create IO synchro %p %s", this, get_cname());
70 IoImpl::on_start(*this);
77 performed_ioops_ = surf_action_->get_cost();
78 if (surf_action_->get_state() == resource::Action::State::FAILED) {
79 if ((storage_ && not storage_->is_on()) || (disk_ && not disk_->is_on()))
80 state_ = SIMIX_FAILED;
82 state_ = SIMIX_CANCELED;
83 } else if (surf_action_->get_state() == resource::Action::State::FINISHED) {
88 /* Answer all simcalls associated with the synchro */
94 while (not simcalls_.empty()) {
95 smx_simcall_t simcall = simcalls_.front();
96 simcalls_.pop_front();
99 /* do nothing, synchro done */
102 simcall->issuer_->context_->iwannadie = true;
103 simcall->issuer_->exception_ =
104 std::make_exception_ptr(StorageFailureException(XBT_THROW_POINT, "Storage failed"));
107 simcall->issuer_->exception_ = std::make_exception_ptr(CancelException(XBT_THROW_POINT, "I/O Canceled"));
110 xbt_die("Internal error in IoImpl::finish(): unexpected synchro state %d", static_cast<int>(state_));
113 simcall->issuer_->waiting_synchro = nullptr;
114 simcall->issuer_->simcall_answer();
121 xbt::signal<void(IoImpl const&)> IoImpl::on_start;
122 xbt::signal<void(IoImpl const&)> IoImpl::on_completion;
124 } // namespace activity
125 } // namespace kernel
126 } // namespace simgrid