#include <sys/wait.h>
#include <memory>
#include <boost/range/algorithm.hpp>
+#include "src/mc/mc_api.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_VisitedState, mc, "Logging specific to state equality detection mechanisms");
+using mcapi = simgrid::mc::mc_api;
+
namespace simgrid {
namespace mc {
/** @brief Save the current state */
VisitedState::VisitedState(unsigned long state_number) : num(state_number)
-{
- simgrid::mc::RemoteSimulation* process = &(mc_model_checker->get_remote_simulation());
- this->heap_bytes_used = mmalloc_get_bytes_used_remote(
- process->get_heap()->heaplimit,
- process->get_malloc_info());
-
- this->actors_count = mc_model_checker->get_remote_simulation().actors().size();
-
+{
+ this->heap_bytes_used = mcapi::get().get_remote_heap_bytes();
+ this->actors_count = mcapi::get().mc_get_remote_simulation().actors().size();
this->system_state = std::make_shared<simgrid::mc::Snapshot>(state_number);
}
if (compare_snapshots)
for (auto i = range.first; i != range.second; ++i) {
auto& visited_state = *i;
- if (snapshot_equal(visited_state->system_state.get(), new_state->system_state.get())) {
+ if (mcapi::get().snapshot_equal(visited_state->system_state.get(), new_state->system_state.get())) {
// The state has been visited:
std::unique_ptr<simgrid::mc::VisitedState> old_state =
#include "src/mc/mc_private.hpp"
#include "src/mc/mc_request.hpp"
#include "src/mc/mc_smx.hpp"
+#include "src/mc/mc_api.hpp"
#if HAVE_SMPI
#include "smpi_request.hpp"
#include <cstdint>
using simgrid::mc::remote;
+using mcapi = simgrid::mc::mc_api;
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_comm_determinism, mc, "Logging specific to MC communication determinism detection");
void CommunicationDeterminismChecker::prepare()
{
- const int maxpid = MC_smx_get_maxpid();
+ const int maxpid = mcapi::get().get_maxpid();
initial_communications_pattern.resize(maxpid);
incomplete_communications_pattern.resize(maxpid);
XBT_DEBUG("********* Start communication determinism verification *********");
/* Get an enabled actor and insert it in the interleave set of the initial state */
- for (auto& actor : mc_model_checker->get_remote_simulation().actors())
- if (mc::actor_is_enabled(actor.copy.get_buffer()))
+ auto actors = mcapi::get().get_actors();
+ for (auto& actor : actors)
+ if (mcapi::get().actor_is_enabled(actor.copy.get_buffer()->get_pid()))
initial_state->add_interleaving_set(actor.copy.get_buffer());
stack_.push_back(std::move(initial_state));
static inline bool all_communications_are_finished()
{
- for (size_t current_actor = 1; current_actor < MC_smx_get_maxpid(); current_actor++) {
+ for (size_t current_actor = 1; current_actor < mcapi::get().get_maxpid(); current_actor++) {
if (not incomplete_communications_pattern[current_actor].empty()) {
XBT_DEBUG("Some communications are not finished, cannot stop the exploration! State not visited.");
return false;
/* Intermediate backtracking */
State* last_state = stack_.back().get();
if (last_state->system_state_) {
- last_state->system_state_->restore(&mc_model_checker->get_remote_simulation());
+ last_state->system_state_->restore(&mcapi::get().mc_get_remote_simulation());
MC_restore_communications_pattern(last_state);
return;
}
cur_state->interleave_size());
/* Update statistics */
- mc_model_checker->visited_states++;
+ mcapi::get().mc_inc_visited_states();
if (stack_.size() <= (std::size_t)_sg_mc_max_depth)
- req = MC_state_choose_request(cur_state);
+ req = mcapi::get().mc_state_choose_request(cur_state);
else
req = nullptr;
if (req != nullptr && visited_state == nullptr) {
int req_num = cur_state->transition_.argument_;
- XBT_DEBUG("Execute: %s", request_to_string(req, req_num, RequestType::simix).c_str());
+ XBT_DEBUG("Execute: %s", mcapi::get().request_to_string(req, req_num, RequestType::simix).c_str());
std::string req_str;
if (dot_output != nullptr)
- req_str = request_get_dot_output(req, req_num);
+ req_str = mcapi::get().request_get_dot_output(req, req_num);
- mc_model_checker->executed_transitions++;
+ mcapi::get().mc_inc_executed_trans();
/* TODO : handle test and testany simcalls */
e_mc_call_type_t call = MC_CALL_TYPE_NONE;
call = MC_get_call_type(req);
/* Answer the request */
- mc_model_checker->handle_simcall(cur_state->transition_);
+ mcapi::get().handle_simcall(cur_state->transition_);
/* After this call req is no longer useful */
MC_handle_comm_pattern(call, req, req_num, 0);
+
/* Wait for requests (schedules processes) */
- mc_model_checker->wait_for_requests();
+ mcapi::get().mc_wait_for_requests();
/* Create the new expanded state */
++expanded_states_count_;
if (visited_state == nullptr) {
/* Get enabled actors and insert them in the interleave set of the next state */
- for (auto& actor : mc_model_checker->get_remote_simulation().actors())
- if (simgrid::mc::actor_is_enabled(actor.copy.get_buffer()))
+ auto actors = mcapi::get().mc_get_remote_simulation().actors();
+ for (auto& actor : actors)
+ if (mcapi::get().actor_is_enabled(actor.copy.get_buffer()->get_pid()))
next_state->add_interleaving_set(actor.copy.get_buffer());
if (dot_output != nullptr)
visited_state = nullptr;
/* Check for deadlocks */
- if (mc_model_checker->checkDeadlock()) {
- MC_show_deadlock();
+ if (mcapi::get().mc_check_deadlock()) {
+ mcapi::get().mc_show_deadlock();
throw simgrid::mc::DeadlockError();
}
}
}
- mc::session->log_state();
+ mcapi::get().s_log_state();
}
void CommunicationDeterminismChecker::run()
{
XBT_INFO("Check communication determinism");
- mc::session->initialize();
+ mcapi::get().s_initialize();
this->prepare();
this->real_run();
#include "src/mc/mc_private.hpp"
#include "src/mc/mc_request.hpp"
#include "src/mc/mc_smx.hpp"
+#include "src/mc/mc_api.hpp"
#include <boost/range/algorithm.hpp>
#include <cstring>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_liveness, mc, "Logging specific to algorithms for liveness properties verification");
+using mcapi = simgrid::mc::mc_api;
+
/********* Static functions *********/
namespace simgrid {
}
}
- smx_simcall_t req = MC_state_choose_request(current_pair->graph_state.get());
+ smx_simcall_t req = mcapi::get().mc_state_choose_request(current_pair->graph_state.get());
int req_num = current_pair->graph_state->transition_.argument_;
if (dot_output != nullptr) {
#include "src/mc/mc_record.hpp"
#include "src/mc/mc_request.hpp"
#include "src/mc/mc_smx.hpp"
+#include "src/mc/mc_api.hpp"
#include "src/xbt/mmalloc/mmprivate.h"
+using mcapi = simgrid::mc::mc_api;
+
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_safety, mc, "Logging specific to MC safety verification ");
namespace simgrid {
void SafetyChecker::check_non_termination(const State* current_state)
{
for (auto state = stack_.rbegin(); state != stack_.rend(); ++state)
- if (snapshot_equal((*state)->system_state_.get(), current_state->system_state_.get())) {
+ if (mcapi::get().snapshot_equal((*state)->system_state_.get(), current_state->system_state_.get())) {
XBT_INFO("Non-progressive cycle: state %d -> state %d", (*state)->num_, current_state->num_);
XBT_INFO("******************************************");
XBT_INFO("*** NON-PROGRESSIVE CYCLE DETECTED ***");
XBT_INFO("******************************************");
XBT_INFO("Counter-example execution trace:");
- for (auto const& s : mc_model_checker->getChecker()->get_textual_trace())
+ auto checker = mcapi::get().mc_get_checker();
+ for (auto const& s : checker->get_textual_trace())
XBT_INFO(" %s", s.c_str());
- dumpRecordPath();
- session->log_state();
+ mcapi::get().mc_dump_record_path();
+ mcapi::get().s_log_state();
throw TerminationError();
}
int value = state->transition_.argument_;
smx_simcall_t req = &state->executed_req_;
if (req)
- trace.push_back(request_to_string(req, value, RequestType::executed));
+ trace.push_back(mcapi::get().request_to_string(req, value, RequestType::executed));
}
return trace;
}
void SafetyChecker::log_state() // override
{
XBT_INFO("Expanded states = %lu", expanded_states_count_);
- XBT_INFO("Visited states = %lu", mc_model_checker->visited_states);
- XBT_INFO("Executed transitions = %lu", mc_model_checker->executed_transitions);
+ XBT_INFO("Visited states = %lu", mcapi::get().mc_get_visited_states());
+ XBT_INFO("Executed transitions = %lu", mcapi::get().mc_get_executed_trans());
}
void SafetyChecker::run()
XBT_VERB("Exploration depth=%zu (state=%p, num %d)(%zu interleave)", stack_.size(), state, state->num_,
state->interleave_size());
- mc_model_checker->visited_states++;
+ mcapi::get().mc_inc_visited_states();
// Backtrack if we reached the maximum depth
if (stack_.size() > (std::size_t)_sg_mc_max_depth) {
// Search an enabled transition in the current state; backtrack if the interleave set is empty
// get_request also sets state.transition to be the one corresponding to the returned req
- smx_simcall_t req = MC_state_choose_request(state);
+ smx_simcall_t req = mcapi::get().mc_state_choose_request(state);
// req is now the transition of the process that was selected to be executed
if (req == nullptr) {
// If there are processes to interleave and the maximum depth has not been
// reached then perform one step of the exploration algorithm.
- XBT_DEBUG("Execute: %s", request_to_string(req, state->transition_.argument_, RequestType::simix).c_str());
+ XBT_DEBUG("Execute: %s", mcapi::get().request_to_string(req, state->transition_.argument_, RequestType::simix).c_str());
std::string req_str;
if (dot_output != nullptr)
- req_str = request_get_dot_output(req, state->transition_.argument_);
+ req_str = mcapi::get().request_get_dot_output(req, state->transition_.argument_);
- mc_model_checker->executed_transitions++;
+ mcapi::get().mc_inc_executed_trans();
/* Actually answer the request: let execute the selected request (MCed does one step) */
- this->get_session().execute(state->transition_);
+ mcapi::get().execute(state->transition_);
/* Create the new expanded state (copy the state of MCed into our MCer data) */
++expanded_states_count_;
/* If this is a new state (or if we don't care about state-equality reduction) */
if (visited_state_ == nullptr) {
/* Get an enabled process and insert it in the interleave set of the next state */
- for (auto& remoteActor : mc_model_checker->get_remote_simulation().actors()) {
+ auto actors = mcapi::get().mc_get_remote_simulation().actors();
+ for (auto& remoteActor : actors) {
auto actor = remoteActor.copy.get_buffer();
- if (actor_is_enabled(actor)) {
+ if (mcapi::get().actor_is_enabled(actor->get_pid())) {
next_state->add_interleaving_set(actor);
if (reductionMode_ == ReductionMode::dpor)
break; // With DPOR, we take the first enabled transition
}
XBT_INFO("No property violation found.");
- session->log_state();
+ mcapi::get().s_log_state();
}
void SafetyChecker::backtrack()
stack_.pop_back();
/* Check for deadlocks */
- if (mc_model_checker->checkDeadlock()) {
- MC_show_deadlock();
+ if (mcapi::get().mc_check_deadlock()) {
+ mcapi::get().mc_show_deadlock();
throw DeadlockError();
}
if (req->call_ == SIMCALL_MUTEX_LOCK || req->call_ == SIMCALL_MUTEX_TRYLOCK)
xbt_die("Mutex is currently not supported with DPOR, use --cfg=model-check/reduction:none");
- const kernel::actor::ActorImpl* issuer = MC_smx_simcall_get_issuer(req);
+ const kernel::actor::ActorImpl* issuer = mcapi::get().mc_smx_simcall_get_issuer(req);
for (auto i = stack_.rbegin(); i != stack_.rend(); ++i) {
State* prev_state = i->get();
- if (request_depend(req, &prev_state->internal_req_)) {
+ if (mcapi::get().request_depend(req, &prev_state->internal_req_)) {
if (XBT_LOG_ISENABLED(mc_safety, xbt_log_priority_debug)) {
XBT_DEBUG("Dependent Transitions:");
int value = prev_state->transition_.argument_;
smx_simcall_t prev_req = &prev_state->executed_req_;
- XBT_DEBUG("%s (state=%d)", simgrid::mc::request_to_string(prev_req, value, RequestType::internal).c_str(),
+ XBT_DEBUG("%s (state=%d)", mcapi::get().request_to_string(prev_req, value, RequestType::internal).c_str(),
prev_state->num_);
value = state->transition_.argument_;
prev_req = &state->executed_req_;
- XBT_DEBUG("%s (state=%d)", simgrid::mc::request_to_string(prev_req, value, RequestType::executed).c_str(),
+ XBT_DEBUG("%s (state=%d)", mcapi::get().request_to_string(prev_req, value, RequestType::executed).c_str(),
state->num_);
}
XBT_DEBUG("Process %p is in done set", req->issuer_);
break;
} else if (req->issuer_ == prev_state->internal_req_.issuer_) {
- XBT_DEBUG("Simcall %s and %s with same issuer", SIMIX_simcall_name(req->call_),
- SIMIX_simcall_name(prev_state->internal_req_.call_));
+ XBT_DEBUG("Simcall %s and %s with same issuer", mcapi::get().simix_simcall_name(req->call_),
+ mcapi::get().simix_simcall_name(prev_state->internal_req_.call_));
break;
} else {
- const kernel::actor::ActorImpl* previous_issuer = MC_smx_simcall_get_issuer(&prev_state->internal_req_);
+ const kernel::actor::ActorImpl* previous_issuer = mcapi::get().mc_smx_simcall_get_issuer(&prev_state->internal_req_);
XBT_DEBUG("Simcall %s, process %ld (state %d) and simcall %s, process %ld (state %d) are independent",
- SIMIX_simcall_name(req->call_), issuer->get_pid(), state->num_,
- SIMIX_simcall_name(prev_state->internal_req_.call_), previous_issuer->get_pid(), prev_state->num_);
+ mcapi::get().simix_simcall_name(req->call_), issuer->get_pid(), state->num_,
+ mcapi::get().simix_simcall_name(prev_state->internal_req_.call_), previous_issuer->get_pid(), prev_state->num_);
}
}
}
/* Intermediate backtracking */
const State* last_state = stack_.back().get();
if (last_state->system_state_) {
- last_state->system_state_->restore(&mc_model_checker->get_remote_simulation());
+ last_state->system_state_->restore(&mcapi::get().mc_get_remote_simulation());
return;
}
/* Restore the initial state */
- session->restore_initial_state();
+ mcapi::get().s_restore_initial_state();
/* Traverse the stack from the state at position start and re-execute the transitions */
for (std::unique_ptr<State> const& state : stack_) {
if (state == stack_.back())
break;
- session->execute(state->transition_);
+ mcapi::get().execute(state->transition_);
/* Update statistics */
- mc_model_checker->visited_states++;
- mc_model_checker->executed_transitions++;
+ mcapi::get().mc_inc_visited_states();
+ mcapi::get().mc_inc_executed_trans();
}
}
XBT_INFO("Check a safety property. Reduction is: %s.",
(reductionMode_ == ReductionMode::none ? "none"
: (reductionMode_ == ReductionMode::dpor ? "dpor" : "unknown")));
- session->initialize();
+
+ mcapi::get().s_initialize();
XBT_DEBUG("Starting the safety algorithm");
XBT_DEBUG("Initial state");
/* Get an enabled actor and insert it in the interleave set of the initial state */
- for (auto& actor : mc_model_checker->get_remote_simulation().actors())
- if (actor_is_enabled(actor.copy.get_buffer())) {
+ auto actors = mcapi::get().get_actors();
+ for (auto& actor : actors)
+ if (mcapi::get().actor_is_enabled(actor.copy.get_buffer()->get_pid())) {
initial_state->add_interleaving_set(actor.copy.get_buffer());
if (reductionMode_ != ReductionMode::none)
break;
#include "src/mc/mc_config.hpp"
#include "src/mc/mc_exit.hpp"
#include "src/internal_config.h"
+#include "src/mc/mc_api.hpp"
#if HAVE_SMPI
#include "smpi/smpi.h"
#include <memory>
#include <unistd.h>
+using mcapi = simgrid::mc::mc_api;
+
static inline
char** argvdup(int argc, char** argv)
{
smpi_init_options(); // only performed once
#endif
sg_config_init(&argc, argv);
- simgrid::mc::session = new simgrid::mc::Session([argv_copy] {
- int i = 1;
- while (argv_copy[i] != nullptr && argv_copy[i][0] == '-')
- i++;
- xbt_assert(argv_copy[i] != nullptr,
- "Unable to find a binary to exec on the command line. Did you only pass config flags?");
- execvp(argv_copy[i], argv_copy + i);
- xbt_die("The model-checked process failed to exec(): %s", strerror(errno));
- });
+ mcapi::get().initialize(argv_copy);
delete[] argv_copy;
auto checker = create_checker(*simgrid::mc::session);
res = SIMGRID_MC_EXIT_LIVENESS;
}
checker = nullptr;
- simgrid::mc::session->close();
+ mcapi::get().s_close();
return res;
}
--- /dev/null
+#include "mc_api.hpp"
+
+#include "src/mc/Session.hpp"
+#include "src/mc/mc_comm_pattern.hpp"
+#include "src/mc/mc_private.hpp"
+#include "src/mc/mc_record.hpp"
+#include "src/mc/mc_smx.hpp"
+#include "src/mc/remote/RemoteSimulation.hpp"
+
+#include <xbt/asserts.h>
+#include <xbt/log.h>
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_api, mc, "Logging specific to MC Fasade APIs ");
+
+namespace simgrid {
+namespace mc {
+
+/* 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 ActorState (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_choose_request_for_process(simgrid::mc::State* state, smx_actor_t actor)
+{
+ /* reset the outgoing transition */
+ simgrid::mc::ActorState* procstate = &state->actor_states_[actor->get_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 < simcall_comm_waitany__get__count(&actor->simcall_)) {
+ if (simgrid::mc::request_is_enabled_by_idx(&actor->simcall_, procstate->times_considered)) {
+ state->transition_.argument_ = procstate->times_considered;
+ ++procstate->times_considered;
+ break;
+ }
+ ++procstate->times_considered;
+ }
+
+ if (procstate->times_considered >= simcall_comm_waitany__get__count(&actor->simcall_))
+ procstate->set_done();
+ 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;
+ ++procstate->times_considered;
+ break;
+ }
+ ++procstate->times_considered;
+ }
+
+ if (procstate->times_considered >= simcall_comm_testany__get__count(&actor->simcall_))
+ procstate->set_done();
+
+ 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(simcall_comm_wait__getraw__comm(&actor->simcall_));
+ simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_act;
+ mc_model_checker->get_remote_simulation().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_.argument_ = 0; // OK
+ else if (act->src_actor_.get() == nullptr && act->type_ == simgrid::kernel::activity::CommImpl::Type::READY &&
+ act->detached())
+ state->transition_.argument_ = 0; // OK
+ else
+ state->transition_.argument_ = -1; // timeout
+ procstate->set_done();
+ 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->set_done();
+ req = &actor->simcall_;
+ break;
+ }
+
+ default:
+ procstate->set_done();
+ state->transition_.argument_ = 0;
+ req = &actor->simcall_;
+ break;
+ }
+ if (not req)
+ return nullptr;
+
+ state->transition_.pid_ = actor->get_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::CommImpl* remote_comm;
+ remote_comm = mc_model_checker->get_remote_simulation().read(
+ remote(simcall_comm_waitany__get__comms(req) + state->transition_.argument_));
+ mc_model_checker->get_remote_simulation().read(state->internal_comm_, remote(remote_comm));
+ simcall_comm_wait__set__comm(&state->internal_req_, state->internal_comm_.get_buffer());
+ simcall_comm_wait__set__timeout(&state->internal_req_, 0);
+ break;
+ }
+
+ case SIMCALL_COMM_TESTANY:
+ state->internal_req_.call_ = SIMCALL_COMM_TEST;
+
+ if (state->transition_.argument_ > 0) {
+ simgrid::kernel::activity::CommImpl* remote_comm = mc_model_checker->get_remote_simulation().read(
+ remote(simcall_comm_testany__get__comms(req) + state->transition_.argument_));
+ mc_model_checker->get_remote_simulation().read(state->internal_comm_, remote(remote_comm));
+ }
+
+ simcall_comm_test__set__comm(&state->internal_req_, state->internal_comm_.get_buffer());
+ simcall_comm_test__set__result(&state->internal_req_, state->transition_.argument_);
+ break;
+
+ case SIMCALL_COMM_WAIT:
+ mc_model_checker->get_remote_simulation().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_.get_buffer());
+ simcall_comm_wait__set__comm(&state->internal_req_, state->internal_comm_.get_buffer());
+ break;
+
+ case SIMCALL_COMM_TEST:
+ mc_model_checker->get_remote_simulation().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_.get_buffer());
+ simcall_comm_test__set__comm(&state->internal_req_, state->internal_comm_.get_buffer());
+ break;
+
+ default:
+ /* No translation needed */
+ break;
+ }
+
+ return req;
+}
+
+void mc_api::initialize(char** argv)
+{
+ simgrid::mc::session = new simgrid::mc::Session([argv] {
+ int i = 1;
+ while (argv[i] != nullptr && argv[i][0] == '-')
+ i++;
+ xbt_assert(argv[i] != nullptr,
+ "Unable to find a binary to exec on the command line. Did you only pass config flags?");
+ execvp(argv[i], argv + i);
+ xbt_die("The model-checked process failed to exec(): %s", strerror(errno));
+ });
+}
+
+std::vector<simgrid::mc::ActorInformation>& mc_api::get_actors() const
+{
+ return mc_model_checker->get_remote_simulation().actors();
+}
+
+bool mc_api::actor_is_enabled(aid_t pid) const
+{
+ return session->actor_is_enabled(pid);
+}
+
+unsigned long mc_api::get_maxpid() const
+{
+ return MC_smx_get_maxpid();
+}
+
+void mc_api::copy_incomplete_comm_pattern(const simgrid::mc::State* state) const
+{
+ MC_state_copy_incomplete_communications_pattern((simgrid::mc::State*)state);
+}
+
+void mc_api::copy_index_comm_pattern(const simgrid::mc::State* state) const
+{
+ MC_state_copy_index_communications_pattern((simgrid::mc::State*)state);
+}
+
+std::size_t mc_api::get_remote_heap_bytes() const
+{
+ RemoteSimulation& process = mc_model_checker->get_remote_simulation();
+ auto heap_bytes_used = mmalloc_get_bytes_used_remote(process.get_heap()->heaplimit, process.get_malloc_info());
+ return heap_bytes_used;
+}
+
+void mc_api::s_initialize() const
+{
+ session->initialize();
+}
+
+ModelChecker* mc_api::get_model_checker() const
+{
+ return mc_model_checker;
+}
+
+void mc_api::mc_inc_visited_states() const
+{
+ mc_model_checker->visited_states++;
+}
+
+void mc_api::mc_inc_executed_trans() const
+{
+ mc_model_checker->executed_transitions++;
+}
+
+unsigned long mc_api::mc_get_visited_states() const
+{
+ return mc_model_checker->visited_states;
+}
+
+unsigned long mc_api::mc_get_executed_trans() const
+{
+ return mc_model_checker->executed_transitions;
+}
+
+bool mc_api::mc_check_deadlock() const
+{
+ return mc_model_checker->checkDeadlock();
+}
+
+void mc_api::mc_show_deadlock() const
+{
+ MC_show_deadlock();
+}
+
+smx_actor_t mc_api::mc_smx_simcall_get_issuer(s_smx_simcall const* req) const
+{
+ return MC_smx_simcall_get_issuer(req);
+}
+
+bool mc_api::mc_is_null() const
+{
+ auto is_null = (mc_model_checker == nullptr) ? true : false;
+ return is_null;
+}
+
+Checker* mc_api::mc_get_checker() const
+{
+ return mc_model_checker->getChecker();
+}
+
+RemoteSimulation& mc_api::mc_get_remote_simulation() const
+{
+ return mc_model_checker->get_remote_simulation();
+}
+
+void mc_api::handle_simcall(Transition const& transition) const
+{
+ mc_model_checker->handle_simcall(transition);
+}
+
+void mc_api::mc_wait_for_requests() const
+{
+ mc_model_checker->wait_for_requests();
+}
+
+void mc_api::mc_exit(int status) const
+{
+ mc_model_checker->exit(status);
+}
+
+std::string const& mc_api::mc_get_host_name(std::string const& hostname) const
+{
+ return mc_model_checker->get_host_name(hostname);
+}
+
+void mc_api::mc_dump_record_path() const
+{
+ simgrid::mc::dumpRecordPath();
+}
+
+smx_simcall_t mc_api::mc_state_choose_request(simgrid::mc::State* state) const
+{
+ for (auto& actor : mc_model_checker->get_remote_simulation().actors()) {
+ /* Only consider the actors that were marked as interleaving by the checker algorithm */
+ if (not state->actor_states_[actor.copy.get_buffer()->get_pid()].is_todo())
+ continue;
+
+ smx_simcall_t res = MC_state_choose_request_for_process(state, actor.copy.get_buffer());
+ if (res)
+ return res;
+ }
+ return nullptr;
+}
+
+bool mc_api::request_depend(smx_simcall_t req1, smx_simcall_t req2) const
+{
+ return simgrid::mc::request_depend(req1, req2);
+}
+
+std::string mc_api::request_to_string(smx_simcall_t req, int value, RequestType request_type) const
+{
+ return simgrid::mc::request_to_string(req, value, request_type).c_str();
+}
+
+std::string mc_api::request_get_dot_output(smx_simcall_t req, int value) const
+{
+ return simgrid::mc::request_get_dot_output(req, value);
+}
+
+const char* mc_api::simix_simcall_name(e_smx_simcall_t kind) const
+{
+ return SIMIX_simcall_name(kind);
+}
+
+bool mc_api::snapshot_equal(const Snapshot* s1, const Snapshot* s2) const
+{
+ return simgrid::mc::snapshot_equal(s1, s2);
+}
+
+simgrid::mc::Snapshot* mc_api::take_snapshot(int num_state) const
+{
+ auto snapshot = new simgrid::mc::Snapshot(num_state);
+ return snapshot;
+}
+
+void mc_api::s_close() const
+{
+ session->close();
+}
+
+void mc_api::s_restore_initial_state() const
+{
+ session->restore_initial_state();
+}
+
+void mc_api::execute(Transition const& transition)
+{
+ session->execute(transition);
+}
+
+void mc_api::s_log_state() const
+{
+ session->log_state();
+}
+
+} // namespace mc
+} // namespace simgrid
--- /dev/null
+#ifndef SIMGRID_MC_API_HPP
+#define SIMGRID_MC_API_HPP
+
+#include <memory>
+#include <vector>
+
+#include "simgrid/forward.h"
+#include "src/mc/mc_forward.hpp"
+#include "src/mc/mc_request.hpp"
+#include "src/mc/mc_state.hpp"
+#include "xbt/base.h"
+
+namespace simgrid {
+namespace mc {
+
+/*
+** This class aimes to implement FACADE APIs for simgrid. The FACADE layer sits between the CheckerSide
+** (Unfolding_Checker, DPOR, ...) layer and the
+** AppSide layer. The goal is to drill down into the entagled details in the CheckerSide layer and break down the
+** detailes in a way that the CheckerSide eventually
+** be capable to acquire the required information through the FACADE layer rather than the direct access to the AppSide.
+*/
+
+class mc_api {
+private:
+ mc_api() = default;
+
+public:
+ // No copy:
+ mc_api(mc_api const&) = delete;
+ void operator=(mc_api const&) = delete;
+
+ static mc_api& get()
+ {
+ static mc_api mcapi;
+ return mcapi;
+ }
+
+ void initialize(char** argv);
+
+ // ACTOR FUNCTIONS
+ std::vector<simgrid::mc::ActorInformation>& get_actors() const;
+ bool actor_is_enabled(aid_t pid) const;
+ unsigned long get_maxpid() const;
+
+ // COMM FUNCTIONS
+ void copy_incomplete_comm_pattern(const simgrid::mc::State* state) const;
+ void copy_index_comm_pattern(const simgrid::mc::State* state) const;
+
+ // REMOTE
+ std::size_t get_remote_heap_bytes() const;
+
+ // MODEL_CHECKER FUNCTIONS
+ ModelChecker* get_model_checker() const;
+ void mc_inc_visited_states() const;
+ void mc_inc_executed_trans() const;
+ unsigned long mc_get_visited_states() const;
+ unsigned long mc_get_executed_trans() const;
+ bool mc_check_deadlock() const;
+ void mc_show_deadlock() const;
+ smx_actor_t mc_smx_simcall_get_issuer(s_smx_simcall const* req) const;
+ bool mc_is_null() const;
+ Checker* mc_get_checker() const;
+ RemoteSimulation& mc_get_remote_simulation() const;
+ void handle_simcall(Transition const& transition) const;
+ void mc_wait_for_requests() const;
+ void mc_exit(int status) const;
+ std::string const& mc_get_host_name(std::string const& hostname) const;
+ void mc_dump_record_path() const;
+ smx_simcall_t mc_state_choose_request(simgrid::mc::State* state) const;
+
+ // SIMCALL FUNCTIONS
+ bool request_depend(smx_simcall_t req1, smx_simcall_t req2) const;
+ std::string request_to_string(smx_simcall_t req, int value, RequestType request_type) const;
+ std::string request_get_dot_output(smx_simcall_t req, int value) const;
+ const char *simix_simcall_name(e_smx_simcall_t kind) const;
+
+ // SNAPSHOT FUNCTIONS
+ bool snapshot_equal(const Snapshot* s1, const Snapshot* s2) const;
+ simgrid::mc::Snapshot* take_snapshot(int num_state) const;
+
+ // SESSION FUNCTIONS
+ void s_initialize() const;
+ void s_close() const;
+ void s_restore_initial_state() const;
+ void execute(Transition const& transition);
+ void s_log_state() const;
+};
+
+} // namespace mc
+} // namespace simgrid
+
+#endif
\ No newline at end of file
// Called from both MCer and MCed:
bool actor_is_enabled(smx_actor_t actor)
{
+// #del
#if SIMGRID_HAVE_MC
// If in the MCer, ask the client app since it has all the data
if (mc_model_checker != nullptr) {
return simgrid::mc::session->actor_is_enabled(actor->get_pid());
}
#endif
+// #
// Now, we are in the client app, no need for remote memory reading.
smx_simcall_t req = &actor->simcall_;
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "src/mc/mc_state.hpp"
-#include "src/mc/mc_comm_pattern.hpp"
#include "src/mc/mc_config.hpp"
-#include "src/mc/mc_request.hpp"
-#include "src/mc/mc_smx.hpp"
+#include "src/mc/mc_api.hpp"
#include <boost/range/algorithm.hpp>
using simgrid::mc::remote;
+using mcapi = simgrid::mc::mc_api;
namespace simgrid {
namespace mc {
State::State(unsigned long state_number) : num_(state_number)
{
this->internal_comm_.clear();
-
- actor_states_.resize(MC_smx_get_maxpid());
+ 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_ = std::make_shared<simgrid::mc::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);
+ mcapi::get().copy_incomplete_comm_pattern(this);
+ mcapi::get().copy_index_comm_pattern(this);
}
}
}
}
}
-
-/* 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 ActorState (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_choose_request_for_process(simgrid::mc::State* state, smx_actor_t actor)
-{
- /* reset the outgoing transition */
- simgrid::mc::ActorState* procstate = &state->actor_states_[actor->get_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 < simcall_comm_waitany__get__count(&actor->simcall_)) {
- if (simgrid::mc::request_is_enabled_by_idx(&actor->simcall_, procstate->times_considered)) {
- state->transition_.argument_ = procstate->times_considered;
- ++procstate->times_considered;
- break;
- }
- ++procstate->times_considered;
- }
-
- if (procstate->times_considered >= simcall_comm_waitany__get__count(&actor->simcall_))
- procstate->set_done();
- 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;
- ++procstate->times_considered;
- break;
- }
- ++procstate->times_considered;
- }
-
- if (procstate->times_considered >= simcall_comm_testany__get__count(&actor->simcall_))
- procstate->set_done();
-
- 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(simcall_comm_wait__getraw__comm(&actor->simcall_));
- simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_act;
- mc_model_checker->get_remote_simulation().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_.argument_ = 0; // OK
- else if (act->src_actor_.get() == nullptr && act->type_ == simgrid::kernel::activity::CommImpl::Type::READY &&
- act->detached())
- state->transition_.argument_ = 0; // OK
- else
- state->transition_.argument_ = -1; // timeout
- procstate->set_done();
- 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->set_done();
- req = &actor->simcall_;
- break;
- }
-
- default:
- procstate->set_done();
- state->transition_.argument_ = 0;
- req = &actor->simcall_;
- break;
- }
- if (not req)
- return nullptr;
-
- state->transition_.pid_ = actor->get_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::CommImpl* remote_comm;
- remote_comm = mc_model_checker->get_remote_simulation().read(
- remote(simcall_comm_waitany__get__comms(req) + state->transition_.argument_));
- mc_model_checker->get_remote_simulation().read(state->internal_comm_, remote(remote_comm));
- simcall_comm_wait__set__comm(&state->internal_req_, state->internal_comm_.get_buffer());
- simcall_comm_wait__set__timeout(&state->internal_req_, 0);
- break;
- }
-
- case SIMCALL_COMM_TESTANY:
- state->internal_req_.call_ = SIMCALL_COMM_TEST;
-
- if (state->transition_.argument_ > 0) {
- simgrid::kernel::activity::CommImpl* remote_comm = mc_model_checker->get_remote_simulation().read(
- remote(simcall_comm_testany__get__comms(req) + state->transition_.argument_));
- mc_model_checker->get_remote_simulation().read(state->internal_comm_, remote(remote_comm));
- }
-
- simcall_comm_test__set__comm(&state->internal_req_, state->internal_comm_.get_buffer());
- simcall_comm_test__set__result(&state->internal_req_, state->transition_.argument_);
- break;
-
- case SIMCALL_COMM_WAIT:
- mc_model_checker->get_remote_simulation().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_.get_buffer());
- simcall_comm_wait__set__comm(&state->internal_req_, state->internal_comm_.get_buffer());
- break;
-
- case SIMCALL_COMM_TEST:
- mc_model_checker->get_remote_simulation().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_.get_buffer());
- simcall_comm_test__set__comm(&state->internal_req_, state->internal_comm_.get_buffer());
- break;
-
- default:
- /* No translation needed */
- break;
- }
-
- return req;
-}
-
-smx_simcall_t MC_state_choose_request(simgrid::mc::State* state)
-{
- for (auto& actor : mc_model_checker->get_remote_simulation().actors()) {
- /* Only consider the actors that were marked as interleaving by the checker algorithm */
- if (not state->actor_states_[actor.copy.get_buffer()->get_pid()].is_todo())
- continue;
-
- smx_simcall_t res = MC_state_choose_request_for_process(state, actor.copy.get_buffer());
- if (res)
- return res;
- }
- return nullptr;
-}
src/mc/checker/SimcallInspector.hpp
src/mc/checker/LivenessChecker.cpp
src/mc/checker/LivenessChecker.hpp
-
+
src/mc/inspect/DwarfExpression.hpp
src/mc/inspect/DwarfExpression.cpp
src/mc/inspect/Frame.hpp
src/mc/mc_comm_pattern.cpp
src/mc/mc_comm_pattern.hpp
src/mc/compare.cpp
+ src/mc/mc_api.cpp
+ src/mc/mc_api.hpp
src/mc/mc_hash.hpp
src/mc/mc_hash.cpp
src/mc/mc_ignore.hpp
