1 /* Copyright (c) 2007-2022. 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. */
6 #include <simgrid/Exception.hpp>
7 #include <simgrid/s4u/Host.hpp>
9 #include "src/kernel/activity/SynchroRaw.hpp"
10 #include "src/kernel/actor/ActorImpl.hpp"
11 #include "src/kernel/context/Context.hpp"
12 #include "src/kernel/resource/CpuImpl.hpp"
13 #include "src/simix/popping_private.hpp"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ker_synchro, kernel,
16 "Kernel synchronization mechanisms (mutex, semaphores and conditions)");
22 RawImpl& RawImpl::set_host(s4u::Host* host)
27 RawImpl& RawImpl::set_timeout(double timeout)
33 RawImpl* RawImpl::start()
35 surf_action_ = host_->get_cpu()->sleep(timeout_);
36 surf_action_->set_activity(this);
40 void RawImpl::suspend()
42 /* The suspension of raw synchros is delayed to when the actor is rescheduled. */
45 void RawImpl::resume()
47 /* I cannot resume raw synchros directly. This is delayed to when the actor is rescheduled at
48 * the end of the synchro. */
51 void RawImpl::cancel()
53 /* I cannot cancel raw synchros directly. */
58 if (surf_action_->get_state() == resource::Action::State::FAILED)
59 set_state(State::FAILED);
60 else if (surf_action_->get_state() == resource::Action::State::FINISHED)
61 set_state(State::SRC_TIMEOUT);
64 /* Answer all simcalls associated with the synchro */
67 void RawImpl::set_exception(actor::ActorImpl* issuer)
69 if (get_state() == State::FAILED) {
70 issuer->context_->set_wannadie();
71 issuer->exception_ = std::make_exception_ptr(HostFailureException(XBT_THROW_POINT, "Host failed"));
73 xbt_assert(get_state() == State::SRC_TIMEOUT, "Internal error in RawImpl::finish() unexpected synchro state %s",
78 void RawImpl::finish()
80 XBT_DEBUG("RawImpl::finish() in state %s", get_state_str());
81 xbt_assert(simcalls_.size() == 1, "Unexpected number of simcalls waiting: %zu", simcalls_.size());
82 smx_simcall_t simcall = simcalls_.front();
83 simcalls_.pop_front();
85 set_exception(simcall->issuer_);
88 simcall->issuer_->waiting_synchro_ = nullptr;
89 simcall->issuer_->simcall_answer();
92 } // namespace activity
94 } // namespace simgrid