-/* Copyright (c) 2008-2017. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2008-2021. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include <assert.h>
+#include "src/mc/mc_state.hpp"
+#include "src/mc/mc_config.hpp"
+#include "src/mc/mc_api.hpp"
#include <boost/range/algorithm.hpp>
-#include "xbt/log.h"
-#include "xbt/sysdep.h"
-
-#include "src/mc/Transition.hpp"
-#include "src/mc/mc_comm_pattern.hpp"
-#include "src/mc/mc_private.h"
-#include "src/mc/mc_request.h"
-#include "src/mc/mc_smx.h"
-#include "src/mc/mc_state.h"
-#include "src/mc/mc_xbt.hpp"
-#include "src/simix/smx_private.h"
-
using simgrid::mc::remote;
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_state, mc, "Logging specific to MC (state)");
+using mcapi = simgrid::mc::mc_api;
namespace simgrid {
namespace mc {
-State::State(unsigned long state_number) : num(state_number)
+State::State(unsigned long state_number) : num_(state_number)
{
- this->internal_comm.clear();
- std::memset(&this->internal_req, 0, sizeof(this->internal_req));
- std::memset(&this->executed_req, 0, sizeof(this->executed_req));
-
- actorStates.resize(MC_smx_get_maxpid());
+ this->internal_comm_.clear();
+ auto maxpid = mcapi::get().get_maxpid();
+ actor_states_.resize(maxpid);
/* Stateful model checking */
if ((_sg_mc_checkpoint > 0 && (state_number % _sg_mc_checkpoint == 0)) || _sg_mc_termination) {
- system_state = simgrid::mc::take_snapshot(num);
+ auto snapshot_ptr = mcapi::get().take_snapshot(num_);
+ system_state_ = std::shared_ptr<simgrid::mc::Snapshot>(snapshot_ptr);
if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
- MC_state_copy_incomplete_communications_pattern(this);
- MC_state_copy_index_communications_pattern(this);
+ copy_incomplete_comm_pattern();
+ copy_index_comm_pattern();
}
}
}
-std::size_t State::interleaveSize() const
+std::size_t State::interleave_size() const
{
- return boost::range::count_if(this->actorStates, [](simgrid::mc::ProcessState const& p) { return p.isTodo(); });
+ return boost::range::count_if(this->actor_states_, [](simgrid::mc::ActorState const& a) { return a.is_todo(); });
}
-Transition State::getTransition() const
+Transition State::get_transition() const
{
- return this->transition;
+ return this->transition_;
}
-}
-}
-
-/* Search an enabled transition for the given process.
- *
- * This can be seen as an iterator returning the next transition of the process.
- *
- * We only consider the processes that are both
- * - marked "to be interleaved" in their ProcessState (controlled by the checker algorithm).
- * - which simcall can currently be executed (like a comm where the other partner is already known)
- * Once we returned the last enabled transition of a process, it is marked done.
- *
- * Things can get muddled with the WAITANY and TESTANY simcalls, that are rewritten on the fly to a bunch of WAIT
- * (resp TEST) transitions using the transition.argument field to remember what was the last returned sub-transition.
- */
-static inline smx_simcall_t MC_state_get_request_for_process(simgrid::mc::State* state, smx_actor_t actor)
+void State::copy_incomplete_comm_pattern()
{
- /* reset the outgoing transition */
- simgrid::mc::ProcessState* procstate = &state->actorStates[actor->pid];
- state->transition.pid = -1;
- state->transition.argument = -1;
- 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;
- switch (actor->simcall.call) {
- case SIMCALL_COMM_WAITANY:
- state->transition.argument = -1;
- while (procstate->times_considered <
- read_length(mc_model_checker->process(), remote(simcall_comm_waitany__get__comms(&actor->simcall)))) {
- if (simgrid::mc::request_is_enabled_by_idx(&actor->simcall, procstate->times_considered++)) {
- state->transition.argument = procstate->times_considered - 1;
- break;
- }
- }
-
- if (procstate->times_considered >=
- simgrid::mc::read_length(mc_model_checker->process(),
- simgrid::mc::remote(simcall_comm_waitany__get__comms(&actor->simcall))))
- procstate->setDone();
- if (state->transition.argument != -1)
- req = &actor->simcall;
- break;
-
- case SIMCALL_COMM_TESTANY: {
- unsigned start_count = procstate->times_considered;
- state->transition.argument = -1;
- while (procstate->times_considered < simcall_comm_testany__get__count(&actor->simcall))
- if (simgrid::mc::request_is_enabled_by_idx(&actor->simcall, procstate->times_considered++)) {
- state->transition.argument = procstate->times_considered - 1;
- break;
- }
-
- if (procstate->times_considered >= simcall_comm_testany__get__count(&actor->simcall))
- procstate->setDone();
-
- if (state->transition.argument != -1 || start_count == 0)
- req = &actor->simcall;
-
- break;
- }
-
- case SIMCALL_COMM_WAIT: {
- simgrid::mc::RemotePtr<simgrid::kernel::activity::CommImpl> remote_act =
- remote(static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(&actor->simcall)));
- simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_act;
- mc_model_checker->process().read(temp_act, remote_act);
- simgrid::kernel::activity::CommImpl* act = temp_act.getBuffer();
- if (act->src_proc && act->dst_proc)
- state->transition.argument = 0;
- else if (act->src_proc == nullptr && act->type == SIMIX_COMM_READY && act->detached == 1)
- state->transition.argument = 0;
- else
- state->transition.argument = -1;
- procstate->setDone();
- req = &actor->simcall;
- break;
- }
-
- case SIMCALL_MC_RANDOM: {
- int min_value = simcall_mc_random__get__min(&actor->simcall);
- state->transition.argument = procstate->times_considered + min_value;
- procstate->times_considered++;
- if (state->transition.argument == simcall_mc_random__get__max(&actor->simcall))
- procstate->setDone();
- req = &actor->simcall;
- break;
- }
-
- default:
- procstate->setDone();
- state->transition.argument = 0;
- req = &actor->simcall;
- break;
- }
- if (not req)
- return nullptr;
-
- state->transition.pid = actor->pid;
- state->executed_req = *req;
- // Fetch the data of the request and translate it:
- state->internal_req = *req;
-
- /* 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: {
- state->internal_req.call = SIMCALL_COMM_WAIT;
- simgrid::kernel::activity::ActivityImpl* remote_comm;
- read_element(mc_model_checker->process(), &remote_comm, remote(simcall_comm_waitany__getraw__comms(req)),
- state->transition.argument, sizeof(remote_comm));
- mc_model_checker->process().read(state->internal_comm,
- remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_comm)));
- simcall_comm_wait__set__comm(&state->internal_req, state->internal_comm.getBuffer());
- simcall_comm_wait__set__timeout(&state->internal_req, 0);
- break;
+ incomplete_comm_pattern_.clear();
+ for (unsigned long i = 0; i < mcapi::get().get_maxpid(); i++) {
+ std::vector<simgrid::mc::PatternCommunication> res;
+ for (auto const& comm : incomplete_communications_pattern[i])
+ res.push_back(comm->dup());
+ incomplete_comm_pattern_.push_back(std::move(res));
}
-
- case SIMCALL_COMM_TESTANY:
- state->internal_req.call = SIMCALL_COMM_TEST;
-
- if (state->transition.argument > 0) {
- simgrid::kernel::activity::ActivityImpl* remote_comm = mc_model_checker->process().read(
- remote(simcall_comm_testany__getraw__comms(req) + state->transition.argument));
- mc_model_checker->process().read(state->internal_comm,
- remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_comm)));
- }
-
- simcall_comm_test__set__comm(&state->internal_req, state->internal_comm.getBuffer());
- simcall_comm_test__set__result(&state->internal_req, state->transition.argument);
- break;
-
- case SIMCALL_COMM_WAIT:
- mc_model_checker->process().read_bytes(&state->internal_comm, sizeof(state->internal_comm),
- remote(simcall_comm_wait__getraw__comm(req)));
- simcall_comm_wait__set__comm(&state->executed_req, state->internal_comm.getBuffer());
- simcall_comm_wait__set__comm(&state->internal_req, state->internal_comm.getBuffer());
- break;
-
- case SIMCALL_COMM_TEST:
- mc_model_checker->process().read_bytes(&state->internal_comm, sizeof(state->internal_comm),
- remote(simcall_comm_test__getraw__comm(req)));
- simcall_comm_test__set__comm(&state->executed_req, state->internal_comm.getBuffer());
- simcall_comm_test__set__comm(&state->internal_req, state->internal_comm.getBuffer());
- break;
-
- default:
- /* No translation needed */
- break;
- }
-
- return req;
}
-smx_simcall_t MC_state_get_request(simgrid::mc::State* state)
+void State::copy_index_comm_pattern()
{
- for (auto& actor : mc_model_checker->process().actors()) {
- /* Only consider the actors that were marked as interleaving by the checker algorithm */
- if (not state->actorStates[actor.copy.getBuffer()->pid].isTodo())
- continue;
+ communication_indices_.clear();
+ for (auto const& list_process_comm : initial_communications_pattern)
+ this->communication_indices_.push_back(list_process_comm.index_comm);
+}
- smx_simcall_t res = MC_state_get_request_for_process(state, actor.copy.getBuffer());
- if (res)
- return res;
- }
- return nullptr;
+}
}
