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. */
6 #include "src/kernel/activity/SynchroRaw.hpp"
7 #include "simgrid/Exception.hpp"
8 #include "simgrid/kernel/resource/Action.hpp"
9 #include "src/kernel/activity/ConditionVariableImpl.hpp"
10 #include "src/kernel/activity/MutexImpl.hpp"
11 #include "src/kernel/activity/SemaphoreImpl.hpp"
12 #include "src/kernel/context/Context.hpp"
13 #include "src/surf/cpu_interface.hpp"
14 #include "src/surf/surf_interface.hpp"
15 #include <simgrid/s4u/Host.hpp>
17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_synchro, simix, "SIMIX Synchronization (mutex, semaphores and conditions)");
23 RawImpl* RawImpl::start(s4u::Host* host, double timeout)
25 surf_action_ = host->pimpl_cpu->sleep(timeout);
26 surf_action_->set_data(this);
32 surf_action_->unref();
35 void RawImpl::suspend()
37 /* The suspension of raw synchros is delayed to when the process is rescheduled. */
40 void RawImpl::resume()
42 /* I cannot resume raw synchros directly. This is delayed to when the process is rescheduled at
43 * the end of the synchro. */
47 if (surf_action_->get_state() == resource::Action::State::FAILED) {
48 state_ = SIMIX_FAILED;
49 } else if (surf_action_->get_state() == resource::Action::State::FINISHED) {
50 state_ = SIMIX_SRC_TIMEOUT;
55 void RawImpl::finish()
57 smx_simcall_t simcall = simcalls_.front();
58 simcalls_.pop_front();
62 /* do nothing, synchro done */
63 XBT_DEBUG("RawImpl::finish(): execution successful");
67 XBT_DEBUG("RawImpl::finish(): host '%s' failed", simcall->issuer->get_host()->get_cname());
68 simcall->issuer->context_->iwannadie = true;
69 simcall->issuer->exception_ =
70 std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed"));
72 case SIMIX_SRC_TIMEOUT:
73 simcall->issuer->exception_ =
74 std::make_exception_ptr(simgrid::TimeoutError(XBT_THROW_POINT, "Synchronization timeout"));
77 xbt_die("Internal error in RawImpl::finish() unexpected synchro state %d", static_cast<int>(state_));
80 switch (simcall->call) {
82 case SIMCALL_MUTEX_LOCK:
83 simgrid::xbt::intrusive_erase(simcall_mutex_lock__get__mutex(simcall)->sleeping, *simcall->issuer);
86 case SIMCALL_COND_WAIT:
87 simgrid::xbt::intrusive_erase(simcall_cond_wait__get__cond(simcall)->sleeping_, *simcall->issuer);
90 case SIMCALL_COND_WAIT_TIMEOUT:
91 simgrid::xbt::intrusive_erase(simcall_cond_wait_timeout__get__cond(simcall)->sleeping_, *simcall->issuer);
92 simcall_cond_wait_timeout__set__result(simcall, 1); // signal a timeout
95 case SIMCALL_SEM_ACQUIRE:
96 simgrid::xbt::intrusive_erase(simcall_sem_acquire__get__sem(simcall)->sleeping_, *simcall->issuer);
99 case SIMCALL_SEM_ACQUIRE_TIMEOUT:
100 simgrid::xbt::intrusive_erase(simcall_sem_acquire_timeout__get__sem(simcall)->sleeping_, *simcall->issuer);
101 simcall_sem_acquire_timeout__set__result(simcall, 1); // signal a timeout
107 simcall->issuer->waiting_synchro = nullptr;
108 SIMIX_simcall_answer(simcall);
111 } // namespace activity
112 } // namespace kernel
113 } // namespace simgrid