- /* reset the outgoing transition */
- simgrid::mc::ActorState* procstate = &state->actor_states_[actor->get_pid()];
- state->transition_.aid_ = -1;
- state->transition_.times_considered_ = -1;
- state->transition_.textual[0] = '\0';
- state->executed_req_.call_ = Simcall::NONE;
-
- if (not simgrid::mc::actor_is_enabled(actor))
- return nullptr; // Not executable in the application
-
- smx_simcall_t req = nullptr;
- if (actor->simcall_.observer_ != nullptr) {
- state->transition_.times_considered_ = procstate->get_times_considered_and_inc();
- if (actor->simcall_.mc_max_consider_ <= procstate->get_times_considered())
- procstate->set_done();
- req = &actor->simcall_;
- } else
- switch (actor->simcall_.call_) {
- case Simcall::COMM_WAITANY:
- while (procstate->get_times_considered() < simcall_comm_waitany__get__count(&actor->simcall_)) {
- if (simgrid::mc::request_is_enabled_by_idx(process, &actor->simcall_, procstate->get_times_considered())) {
- state->transition_.times_considered_ = procstate->get_times_considered_and_inc();
- break;
- }
- procstate->get_times_considered_and_inc();
- }
-
- if (procstate->get_times_considered() >= simcall_comm_waitany__get__count(&actor->simcall_))
- procstate->set_done();
- if (state->transition_.times_considered_ != -1)
- req = &actor->simcall_;
- break;
-
- case Simcall::COMM_TESTANY:
- while (procstate->get_times_considered() < simcall_comm_testany__get__count(&actor->simcall_)) {
- if (simgrid::mc::request_is_enabled_by_idx(process, &actor->simcall_, procstate->get_times_considered())) {
- state->transition_.times_considered_ = procstate->get_times_considered_and_inc();
- break;
- }
- procstate->get_times_considered_and_inc();
- }
-
- if (procstate->get_times_considered() >= simcall_comm_testany__get__count(&actor->simcall_))
- procstate->set_done();
- if (state->transition_.times_considered_ != -1)
- req = &actor->simcall_;
- break;
-
- case Simcall::COMM_WAIT: {
- simgrid::mc::RemotePtr<simgrid::kernel::activity::CommImpl> remote_act =
- remote(simcall_comm_wait__get__comm(&actor->simcall_));
- simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_act;
- process.read(temp_act, remote_act);
- const simgrid::kernel::activity::CommImpl* act = temp_act.get_buffer();
- if (act->src_actor_.get() && act->dst_actor_.get())
- state->transition_.times_considered_ = 0; // OK
- else if (act->src_actor_.get() == nullptr && act->state_ == simgrid::kernel::activity::State::READY &&
- act->detached())
- state->transition_.times_considered_ = 0; // OK
- procstate->set_done();
- req = &actor->simcall_;
- break;
- }
-
- default:
- procstate->set_done();
- state->transition_.times_considered_ = 0;
- req = &actor->simcall_;
- break;
- }
- if (not req)
- return nullptr;
-
- state->transition_.aid_ = actor->get_pid();
- state->executed_req_ = *req;
-
- // Fetch the data of the request and translate it:
- state->internal_req_ = *req;
- state->internal_req_.mc_value_ = state->transition_.times_considered_;
- simcall_translate(&state->internal_req_, state->internal_comm_);
-
- return req;
-}
-
-static void simcall_translate(smx_simcall_t req,
- simgrid::mc::Remote<simgrid::kernel::activity::CommImpl>& buffered_comm)
-{
- simgrid::kernel::activity::CommImpl* chosen_comm;
-
- /* The waitany and testany request are transformed into a wait or test request over the corresponding communication
- * action so it can be treated later by the dependence function. */
- switch (req->call_) {
- case Simcall::COMM_WAITANY:
- req->call_ = Simcall::COMM_WAIT;
- chosen_comm =
- mc_model_checker->get_remote_process().read(remote(simcall_comm_waitany__get__comms(req) + req->mc_value_));
-
- mc_model_checker->get_remote_process().read(buffered_comm, remote(chosen_comm));
- simcall_comm_wait__set__comm(req, buffered_comm.get_buffer());
- simcall_comm_wait__set__timeout(req, 0);
- break;
-
- case Simcall::COMM_TESTANY:
- req->call_ = Simcall::COMM_TEST;
- chosen_comm =
- mc_model_checker->get_remote_process().read(remote(simcall_comm_testany__get__comms(req) + req->mc_value_));
-
- mc_model_checker->get_remote_process().read(buffered_comm, remote(chosen_comm));
- simcall_comm_test__set__comm(req, buffered_comm.get_buffer());
- simcall_comm_test__set__result(req, req->mc_value_);
- break;
-
- case Simcall::COMM_WAIT:
- chosen_comm = simcall_comm_wait__get__comm(req);
- mc_model_checker->get_remote_process().read(buffered_comm, remote(chosen_comm));
- simcall_comm_wait__set__comm(req, buffered_comm.get_buffer());
- break;
-
- case Simcall::COMM_TEST:
- chosen_comm = simcall_comm_test__get__comm(req);
- mc_model_checker->get_remote_process().read(buffered_comm, remote(chosen_comm));
- simcall_comm_test__set__comm(req, buffered_comm.get_buffer());
- break;
-
- default:
- /* No translation needed */
- break;
- }
-}
-
-simgrid::kernel::activity::CommImpl* Api::get_comm_or_nullptr(smx_simcall_t const r) const
-{
- if (r->call_ == Simcall::COMM_WAIT)
- return simcall_comm_wait__get__comm(r);
- if (r->call_ == Simcall::COMM_TEST)
- return simcall_comm_test__get__comm(r);
- return nullptr;
-}
-
-/** Statically "upcast" a s_smx_actor_t into an ActorInformation
- *
- * This gets 'actorInfo' from '&actorInfo->copy'. It upcasts in the
- * sense that we could achieve the same thing by having ActorInformation
- * inherit from s_smx_actor_t but we don't really want to do that.
- */
-simgrid::mc::ActorInformation* Api::actor_info_cast(smx_actor_t actor) const
-{
- simgrid::mc::ActorInformation temp;
- std::size_t offset = (char*)temp.copy.get_buffer() - (char*)&temp;
-
- auto* process_info = reinterpret_cast<simgrid::mc::ActorInformation*>((char*)actor - offset);
- return process_info;
-}
-
-bool Api::simcall_check_dependency(smx_simcall_t req1, smx_simcall_t req2) const
-{
- const auto IRECV = Simcall::COMM_IRECV;
- const auto ISEND = Simcall::COMM_ISEND;
- const auto TEST = Simcall::COMM_TEST;
- const auto WAIT = Simcall::COMM_WAIT;
-
- if (req1->issuer_ == req2->issuer_)
- return false;
-
- /* The independence theorem only consider 4 simcalls. All others are dependent with anything. */
- if (req1->call_ != ISEND && req1->call_ != IRECV && req1->call_ != TEST && req1->call_ != WAIT)
- return true;
- if (req2->call_ != ISEND && req2->call_ != IRECV && req2->call_ != TEST && req2->call_ != WAIT)
- return true;
-
- /* Timeouts in wait transitions are not considered by the independence theorem, thus assumed dependent */
- if ((req1->call_ == WAIT && simcall_comm_wait__get__timeout(req1) > 0) ||
- (req2->call_ == WAIT && simcall_comm_wait__get__timeout(req2) > 0))
- return true;
-
- /* Make sure that req1 and req2 are in alphabetic order */
- if (req1->call_ > req2->call_) {
- auto temp = req1;
- req1 = req2;
- req2 = temp;
- }
-
- auto comm1 = get_comm_or_nullptr(req1);
- auto comm2 = get_comm_or_nullptr(req2);
-
- /* First case: that's not the same kind of request (we also know that req1 < req2 alphabetically) */
- if (req1->call_ != req2->call_) {
- if (req1->call_ == IRECV && req2->call_ == ISEND)
- return false;
-
- if ((req1->call_ == IRECV || req1->call_ == ISEND) && req2->call_ == WAIT) {
- auto mbox1 = get_mbox_remote_addr(req1);
- auto mbox2 = remote(comm2->mbox_cpy);
-
- if (mbox1 != mbox2 && simcall_comm_wait__get__timeout(req2) <= 0)
- return false;
-
- if ((req1->issuer_ != comm2->src_actor_.get()) && (req1->issuer_ != comm2->dst_actor_.get()) &&
- simcall_comm_wait__get__timeout(req2) <= 0)
- return false;
-
- if ((req1->call_ == ISEND) && (comm2->type_ == kernel::activity::CommImpl::Type::SEND) &&
- (comm2->src_buff_ != simcall_comm_isend__get__src_buff(req1)) && simcall_comm_wait__get__timeout(req2) <= 0)
- return false;
-
- if ((req1->call_ == IRECV) && (comm2->type_ == kernel::activity::CommImpl::Type::RECEIVE) &&
- (comm2->dst_buff_ != simcall_comm_irecv__get__dst_buff(req1)) && simcall_comm_wait__get__timeout(req2) <= 0)
- return false;
- }
-
- /* FIXME: the following rule assumes that the result of the isend/irecv call is not stored in a buffer used in the
- * test call. */
-#if 0
- if((req1->call == ISEND || req1->call == IRECV)
- && req2->call == TEST)
- return false;
-#endif
-
- if (req1->call_ == TEST && req2->call_ == WAIT &&
- (comm1->src_actor_.get() == nullptr || comm1->dst_actor_.get() == nullptr))
- return false;
-
- if (req1->call_ == TEST &&
- (simcall_comm_test__get__comm(req1) == nullptr || comm1->src_buff_ == nullptr || comm1->dst_buff_ == nullptr))
- return false;
- if (req2->call_ == TEST &&
- (simcall_comm_test__get__comm(req2) == nullptr || comm2->src_buff_ == nullptr || comm2->dst_buff_ == nullptr))
- return false;
-
- if (req1->call_ == TEST && req2->call_ == WAIT && comm1->src_buff_ == comm2->src_buff_ &&
- comm1->dst_buff_ == comm2->dst_buff_)
- return false;
-
- if (req1->call_ == TEST && req2->call_ == WAIT && comm1->src_buff_ != nullptr && comm1->dst_buff_ != nullptr &&
- comm2->src_buff_ != nullptr && comm2->dst_buff_ != nullptr && comm1->dst_buff_ != comm2->src_buff_ &&
- comm1->dst_buff_ != comm2->dst_buff_ && comm2->dst_buff_ != comm1->src_buff_)
- return false;
-
- return true;
- }
-
- /* Second case: req1 and req2 are of the same call type */
- switch (req1->call_) {
- case ISEND:
- return simcall_comm_isend__get__mbox(req1) == simcall_comm_isend__get__mbox(req2);
- case IRECV:
- return simcall_comm_irecv__get__mbox(req1) == simcall_comm_irecv__get__mbox(req2);
- case WAIT:
- if (comm1->src_buff_ == comm2->src_buff_ && comm1->dst_buff_ == comm2->dst_buff_)
- return false;
- if (comm1->src_buff_ != nullptr && comm1->dst_buff_ != nullptr && comm2->src_buff_ != nullptr &&
- comm2->dst_buff_ != nullptr && comm1->dst_buff_ != comm2->src_buff_ && comm1->dst_buff_ != comm2->dst_buff_ &&
- comm2->dst_buff_ != comm1->src_buff_)
- return false;
- return true;
- default:
- return true;
- }
-}
-
-xbt::string const& Api::get_actor_host_name(smx_actor_t actor) const
-{
- if (mc_model_checker == nullptr)
- return actor->get_host()->get_name();
-
- const simgrid::mc::RemoteProcess* process = &mc_model_checker->get_remote_process();
-
- // Read the simgrid::xbt::string in the MCed process:
- simgrid::mc::ActorInformation* info = actor_info_cast(actor);
-
- if (not info->hostname) {
- Remote<s4u::Host> temp_host = process->read(remote(actor->get_host()));
- auto remote_string_address = remote(&xbt::string::to_string_data(temp_host.get_buffer()->get_impl()->get_name()));
- simgrid::xbt::string_data remote_string = process->read(remote_string_address);
- std::vector<char> hostname(remote_string.len + 1);
- // no need to read the terminating null byte, and thus hostname[remote_string.len] is guaranteed to be '\0'
- process->read_bytes(hostname.data(), remote_string.len, remote(remote_string.data));
- info->hostname = &mc_model_checker->get_host_name(hostname.data());
- }
- return *info->hostname;
-}
-
-xbt::string const& Api::get_actor_name(smx_actor_t actor) const
-{
- if (mc_model_checker == nullptr)
- return actor->get_name();
-
- simgrid::mc::ActorInformation* info = actor_info_cast(actor);
- if (info->name.empty()) {
- const simgrid::mc::RemoteProcess* process = &mc_model_checker->get_remote_process();
-
- simgrid::xbt::string_data string_data = simgrid::xbt::string::to_string_data(actor->name_);
- info->name = process->read_string(remote(string_data.data), string_data.len);
- }
- return info->name;
-}
-
-std::string Api::get_actor_string(smx_actor_t actor) const
-{
- std::string res;
- if (actor) {
- res = "(" + std::to_string(actor->get_pid()) + ")";
- if (actor->get_host())
- res += std::string(get_actor_host_name(actor)) + " (" + std::string(get_actor_name(actor)) + ")";
- else
- res += get_actor_name(actor);
- } else
- res = "(0) ()";
- return res;
-}
-
-std::string Api::get_actor_dot_label(smx_actor_t actor) const
-{
- std::string res = "(" + std::to_string(actor->get_pid()) + ")";
- if (actor->get_host())
- res += get_actor_host_name(actor);
- return res;
-}
-
-simgrid::mc::Checker* Api::initialize(char** argv, simgrid::mc::CheckerAlgorithm algo) const
-{
- auto session = new simgrid::mc::Session([argv] {