-/* Copyright (c) 2014. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2014-2023. 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 <stdio.h>
-#include <stdlib.h>
+#include "src/mc/mc_record.hpp"
+#include "src/kernel/EngineImpl.hpp"
+#include "src/kernel/activity/CommImpl.hpp"
+#include "src/mc/mc_base.hpp"
+#include "src/mc/mc_replay.hpp"
+#include "src/mc/transition/Transition.hpp"
-#include <xbt.h>
-#include <simgrid/simix.h>
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_record, mc, "Logging specific to MC record/replay facility");
-#include "mc_record.h"
-#include "mc_base.h"
+namespace simgrid::mc {
-#ifdef HAVE_MC
-#include "mc_private.h"
-#include "mc_state.h"
-#include "mc_smx.h"
-#endif
-
-extern "C" {
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_record, mc,
- " Logging specific to MC record/replay facility");
-
-char* MC_record_path = NULL;
-
-void MC_record_replay(mc_record_item_t start, size_t len)
+void RecordTrace::replay() const
{
- MC_wait_for_requests();
- mc_record_item_t end = start + len;
-
- // Choose the recorded simcall and execute it:
- for (mc_record_item_t item=start;item!=end; ++item) {
-
- XBT_DEBUG("Executing %i$%i", item->pid, item->value);
-/*
- if (xbt_dynar_is_empty(simix_global->process_to_run))
- xbt_die("Unexpected end of application.");
-*/
-
- // Choose a request:
- smx_process_t process = SIMIX_process_from_PID(item->pid);
- if (!process)
- xbt_die("Unexpected process.");
- smx_simcall_t simcall = &(process->simcall);
- if(!simcall || simcall->call == SIMCALL_NONE)
- xbt_die("No simcall for this process.");
- if (!MC_request_is_visible(simcall) || !MC_request_is_enabled(simcall))
- xbt_die("Unexpected simcall.");
+ simgrid::mc::execute_actors();
+ auto* engine = kernel::EngineImpl::get_instance();
+
+ int frame_count = 1;
+ if (xbt_log_no_loc)
+ XBT_INFO("The backtrace of each transition will not be shown because of --log=no_loc");
+ else
+ simgrid_mc_replay_show_backtraces = true;
+
+ for (const simgrid::mc::Transition* transition : transitions_) {
+ kernel::actor::ActorImpl* actor = engine->get_actor_by_pid(transition->aid_);
+ xbt_assert(actor != nullptr, "Unexpected actor (id:%ld).", transition->aid_);
+ const kernel::actor::Simcall* simcall = &(actor->simcall_);
+ xbt_assert(simgrid::mc::request_is_visible(simcall), "Simcall %s of actor %s is not visible.", simcall->get_cname(),
+ actor->get_cname());
+
+ XBT_INFO("***********************************************************************************");
+ XBT_INFO("* Path chunk #%d '%ld/%i' Actor %s(pid:%ld): %s", frame_count++, transition->aid_,
+ transition->times_considered_, simcall->issuer_->get_cname(), simcall->issuer_->get_pid(),
+ simcall->observer_->to_string().c_str());
+ XBT_INFO("***********************************************************************************");
+ if (not mc::actor_is_enabled(actor))
+ simgrid::kernel::EngineImpl::get_instance()->display_all_actor_status();
+
+ xbt_assert(simgrid::mc::actor_is_enabled(actor), "Actor %s (simcall %s) is not enabled.", actor->get_cname(),
+ simcall->get_cname());
// Execute the request:
- SIMIX_simcall_handle(simcall, item->value);
- MC_wait_for_requests();
+ simcall->issuer_->simcall_handle(transition->times_considered_);
+ simgrid::mc::execute_actors();
+ }
+
+ const auto& actor_list = engine->get_actor_list();
+ if (actor_list.empty()) {
+ XBT_INFO("The replay of the trace is complete. The application is terminating.");
+ } else if (std::none_of(std::begin(actor_list), std::end(actor_list),
+ [](const auto& kv) { return mc::actor_is_enabled(kv.second); })) {
+ XBT_INFO("The replay of the trace is complete. DEADLOCK detected.");
+ engine->display_all_actor_status();
+ } else {
+ XBT_INFO("The replay of the trace is complete. The application could run further.");
}
}
-xbt_dynar_t MC_record_from_string(const char* data)
+void simgrid::mc::RecordTrace::replay(const std::string& path_string)
{
- XBT_INFO("path=%s", data);
- if (!data || !data[0])
- return NULL;
+ simgrid::mc::processes_time.resize(kernel::actor::ActorImpl::get_maxpid());
+ simgrid::mc::RecordTrace trace(path_string.c_str());
+ trace.replay();
+ for (auto* item : trace.transitions_)
+ delete item;
+ simgrid::mc::processes_time.clear();
+}
- xbt_dynar_t dynar = xbt_dynar_new(sizeof(s_mc_record_item_t), NULL);
+simgrid::mc::RecordTrace::RecordTrace(const char* data)
+{
+ XBT_INFO("path=%s", data);
+ if (data == nullptr || data[0] == '\0')
+ throw std::invalid_argument("Could not parse record path");
const char* current = data;
while (*current) {
+ long aid;
+ int times_considered = 0;
- s_mc_record_item_t item = { 0, 0 };
- int count = sscanf(current, "%u/%u", &item.pid, &item.value);
- if(count != 2 && count != 1)
- goto fail;
- xbt_dynar_push(dynar, &item);
+ if (int count = sscanf(current, "%ld/%d", &aid, ×_considered); count != 2 && count != 1)
+ throw std::invalid_argument("Could not parse record path");
+ push_back(new simgrid::mc::Transition(simgrid::mc::Transition::Type::UNKNOWN, aid, times_considered));
// Find next chunk:
- const char* end = strchr(current, ';');
- if(end==NULL)
+ const char* end = std::strchr(current, ';');
+ if(end == nullptr)
break;
else
current = end + 1;
}
-
- return dynar;
-
-fail:
- xbt_dynar_free(&dynar);
- return NULL;
-}
-
-#ifdef HAVE_MC
-char* MC_record_stack_to_string(xbt_fifo_t stack)
-{
- xbt_fifo_item_t start = xbt_fifo_get_last_item(stack);
-
- if (!start) {
- char* res = (char*) malloc(1 * sizeof(char));
- res[0] = '\0';
- return res;
- }
-
- char* buffer;
- size_t size;
- FILE* file = open_memstream(&buffer, &size);
-
- xbt_fifo_item_t item;
- for (item = start; item; item = xbt_fifo_get_prev_item(item)) {
-
- // Find (pid, value):
- mc_state_t state = (mc_state_t) xbt_fifo_get_item_content(item);
- int value = 0;
- smx_simcall_t saved_req = MC_state_get_executed_request(state, &value);
- const smx_process_t issuer = MC_smx_simcall_get_issuer(saved_req);
- const int pid = issuer->pid;
-
- // Serialization the (pid, value) pair:
- const char* sep = (item!=start) ? ";" : "";
- if (value)
- fprintf(file, "%s%u/%u", sep, pid, value);
- else
- fprintf(file, "%s%u", sep, pid);
- }
-
- fclose(file);
- return buffer;
}
-void MC_record_dump_path(xbt_fifo_t stack)
+std::string simgrid::mc::RecordTrace::to_string() const
{
- if (MC_record_is_active()) {
- char* path = MC_record_stack_to_string(stack);
- XBT_INFO("Path = %s", path);
- free(path);
+ std::ostringstream stream;
+ for (auto i = transitions_.begin(); i != transitions_.end(); ++i) {
+ if (*i == nullptr)
+ continue;
+ if (i != transitions_.begin())
+ stream << ';';
+ stream << (*i)->aid_;
+ if ((*i)->times_considered_ > 0)
+ stream << '/' << (*i)->times_considered_;
}
+ return stream.str();
}
-#endif
-
-void MC_record_replay_from_string(const char* path_string)
-{
- xbt_dynar_t path = MC_record_from_string(path_string);
- mc_record_item_t start = &xbt_dynar_get_as(path, 0, s_mc_record_item_t);
- MC_record_replay(start, xbt_dynar_length(path));
- xbt_dynar_free(&path);
-}
-
-void MC_record_replay_init()
-{
- mc_time = xbt_new0(double, simix_process_maxpid);
-}
-
-}
+} // namespace simgrid::mc
