#include "mc_api.hpp"
+#include "src/kernel/activity/MailboxImpl.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 "src/mc/mc_record.hpp"
+#include "src/mc/mc_pattern.hpp"
#include <xbt/asserts.h>
#include <xbt/log.h>
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] {
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);
+}
+
+kernel::activity::CommImpl* mc_api::get_pattern_comm_addr(smx_simcall_t request) const
+{
+ auto comm_addr = simcall_comm_isend__getraw__result(request);
+ return static_cast<kernel::activity::CommImpl*>(comm_addr);
+}
+std::string mc_api::get_pattern_comm_rdv(void* addr) const
+{
+ Remote<kernel::activity::CommImpl> temp_synchro;
+ mc_model_checker->get_remote_simulation().read(temp_synchro, remote((simgrid::kernel::activity::CommImpl*)addr));
+ const kernel::activity::CommImpl* synchro = temp_synchro.get_buffer();
+
+ char* remote_name = mc_model_checker->get_remote_simulation().read<char*>(RemotePtr<char*>(
+ (uint64_t)(synchro->get_mailbox() ? &synchro->get_mailbox()->get_name() : &synchro->mbox_cpy->get_name())));
+ auto rdv = mc_model_checker->get_remote_simulation().read_string(RemotePtr<char>(remote_name));
+ return rdv;
+}
+
+unsigned long mc_api::get_pattern_comm_src_proc(void* addr) const
+{
+ Remote<kernel::activity::CommImpl> temp_synchro;
+ mc_model_checker->get_remote_simulation().read(temp_synchro, remote((simgrid::kernel::activity::CommImpl*)addr));
+ const kernel::activity::CommImpl* synchro = temp_synchro.get_buffer();
+ auto src_proc = mc_model_checker->get_remote_simulation().resolve_actor(mc::remote(synchro->src_actor_.get()))->get_pid();
+ return src_proc;
+}
+
+std::vector<char> mc_api::get_pattern_comm_data(void* addr) const
+{
+ Remote<kernel::activity::CommImpl> temp_synchro;
+ mc_model_checker->get_remote_simulation().read(temp_synchro, remote((simgrid::kernel::activity::CommImpl*)addr));
+ const kernel::activity::CommImpl* synchro = temp_synchro.get_buffer();
+
+ std::vector<char> buffer {};
+ if (synchro->src_buff_ != nullptr) {
+ buffer.resize(synchro->src_buff_size_);
+ mc_model_checker->get_remote_simulation().read_bytes(buffer.data(), buffer.size(),
+ remote(synchro->src_buff_));
+ }
+ return buffer;
+}
+
+const char* mc_api::get_actor_host_name(smx_actor_t actor) const
+{
+ const char* host_name = MC_smx_actor_get_host_name(actor);
+ return host_name;
+}
+
+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();
smx_simcall_t mc_api::mc_state_choose_request(simgrid::mc::State* state) const
{
- return MC_state_choose_request(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;
}
bool mc_api::request_depend(smx_simcall_t req1, smx_simcall_t req2) const
