#include "simgrid/sg_config.hpp"
#include "src/kernel/EngineImpl.hpp"
-#include "src/kernel/activity/ExecImpl.hpp"
-#include "src/kernel/activity/IoImpl.hpp"
-#include "src/kernel/activity/MailboxImpl.hpp"
-#include "src/kernel/activity/SleepImpl.hpp"
-#include "src/kernel/activity/SynchroRaw.hpp"
#include "src/mc/mc_record.hpp"
#include "src/mc/mc_replay.hpp"
-#include "src/simix/smx_private.hpp"
#include "src/surf/xml/platf.hpp"
#include "simgrid/kernel/resource/Model.hpp"
-#if SIMGRID_HAVE_MC
-#include "src/mc/remote/AppSide.hpp"
-#endif
-
#include <memory>
XBT_LOG_NEW_CATEGORY(simix, "All SIMIX categories");
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_kernel, simix, "Logging specific to SIMIX (kernel)");
-std::unique_ptr<simgrid::simix::Global> simix_global;
-
-void (*SMPI_switch_data_segment)(simgrid::s4u::ActorPtr) = nullptr;
-
namespace simgrid {
namespace simix {
-config::Flag<bool> cfg_verbose_exit{"debug/verbose-exit", "Display the actor status at exit", true};
xbt_dynar_t simix_global_get_actors_addr()
{
#if SIMGRID_HAVE_MC
- return simix_global->actors_vector;
+ return kernel::EngineImpl::get_instance()->get_actors_vector();
#else
xbt_die("This function is intended to be used when compiling with MC");
#endif
xbt_dynar_t simix_global_get_dead_actors_addr()
{
#if SIMGRID_HAVE_MC
- return simix_global->dead_actors_vector;
+ return kernel::EngineImpl::get_instance()->get_dead_actors_vector();
#else
xbt_die("This function is intended to be used when compiling with MC");
#endif
} // namespace simix
} // namespace simgrid
-XBT_ATTRIB_NORETURN static void inthandler(int)
-{
- if (simgrid::simix::cfg_verbose_exit) {
- XBT_INFO("CTRL-C pressed. The current status will be displayed before exit (disable that behavior with option "
- "'debug/verbose-exit').");
- simix_global->display_all_actor_status();
- } else {
- XBT_INFO("CTRL-C pressed, exiting. Hiding the current process status since 'debug/verbose-exit' is set to false.");
- }
- exit(1);
-}
-
-#ifndef _WIN32
-static void segvhandler(int signum, siginfo_t* siginfo, void* /*context*/)
-{
- if ((siginfo->si_signo == SIGSEGV && siginfo->si_code == SEGV_ACCERR) || siginfo->si_signo == SIGBUS) {
- fprintf(stderr,
- "Access violation or Bus error detected.\n"
- "This probably comes from a programming error in your code, or from a stack\n"
- "overflow. If you are certain of your code, try increasing the stack size\n"
- " --cfg=contexts/stack-size=XXX (current size is %u KiB).\n"
- "\n"
- "If it does not help, this may have one of the following causes:\n"
- "a bug in SimGrid, a bug in the OS or a bug in a third-party libraries.\n"
- "Failing hardware can sometimes generate such errors too.\n"
- "\n"
- "If you think you've found a bug in SimGrid, please report it along with a\n"
- "Minimal Working Example (MWE) reproducing your problem and a full backtrace\n"
- "of the fault captured with gdb or valgrind.\n",
- smx_context_stack_size / 1024);
- } else if (siginfo->si_signo == SIGSEGV) {
- fprintf(stderr, "Segmentation fault.\n");
-#if HAVE_SMPI
- if (smpi_enabled() && smpi_cfg_privatization() == SmpiPrivStrategies::NONE) {
-#if HAVE_PRIVATIZATION
- fprintf(stderr, "Try to enable SMPI variable privatization with --cfg=smpi/privatization:yes.\n");
-#else
- fprintf(stderr, "Sadly, your system does not support --cfg=smpi/privatization:yes (yet).\n");
-#endif /* HAVE_PRIVATIZATION */
- }
-#endif /* HAVE_SMPI */
- }
- std::raise(signum);
-}
-
-/**
- * Install signal handler for SIGSEGV. Check that nobody has already installed
- * its own handler. For example, the Java VM does this.
- */
-static void install_segvhandler()
-{
- stack_t old_stack;
-
- if (simgrid::kernel::context::Context::install_sigsegv_stack(&old_stack, true) == -1) {
- XBT_WARN("Failed to register alternate signal stack: %s", strerror(errno));
- return;
- }
- if (not(old_stack.ss_flags & SS_DISABLE)) {
- XBT_DEBUG("An alternate stack was already installed (sp=%p, size=%zu, flags=%x). Restore it.", old_stack.ss_sp,
- old_stack.ss_size, (unsigned)old_stack.ss_flags);
- sigaltstack(&old_stack, nullptr);
- }
-
- struct sigaction action;
- struct sigaction old_action;
- action.sa_sigaction = &segvhandler;
- action.sa_flags = SA_ONSTACK | SA_RESETHAND | SA_SIGINFO;
- sigemptyset(&action.sa_mask);
-
- /* Linux tend to raise only SIGSEGV where other systems also raise SIGBUS on severe error */
- for (int sig : {SIGSEGV, SIGBUS}) {
- if (sigaction(sig, &action, &old_action) == -1) {
- XBT_WARN("Failed to register signal handler for signal %d: %s", sig, strerror(errno));
- continue;
- }
- if ((old_action.sa_flags & SA_SIGINFO) || old_action.sa_handler != SIG_DFL) {
- XBT_DEBUG("A signal handler was already installed for signal %d (%p). Restore it.", sig,
- (old_action.sa_flags & SA_SIGINFO) ? (void*)old_action.sa_sigaction : (void*)old_action.sa_handler);
- sigaction(sig, &old_action, nullptr);
- }
- }
-}
-
-#endif /* _WIN32 */
-
-/********************************* SIMIX **************************************/
-namespace simgrid {
-namespace simix {
-
-void Global::empty_trash()
-{
- while (not actors_to_destroy.empty()) {
- kernel::actor::ActorImpl* actor = &actors_to_destroy.front();
- actors_to_destroy.pop_front();
- XBT_DEBUG("Getting rid of %s (refcount: %d)", actor->get_cname(), actor->get_refcount());
- intrusive_ptr_release(actor);
- }
-#if SIMGRID_HAVE_MC
- xbt_dynar_reset(dead_actors_vector);
-#endif
-}
-
-void Global::display_all_actor_status() const
-{
- XBT_INFO("%zu actors are still running, waiting for something.", process_list.size());
- /* List the actors and their state */
- XBT_INFO("Legend of the following listing: \"Actor <pid> (<name>@<host>): <status>\"");
- for (auto const& kv : process_list) {
- kernel::actor::ActorImpl* actor = kv.second;
-
- if (actor->waiting_synchro_) {
- const char* synchro_description = "unknown";
-
- if (boost::dynamic_pointer_cast<kernel::activity::ExecImpl>(actor->waiting_synchro_) != nullptr)
- synchro_description = "execution";
-
- if (boost::dynamic_pointer_cast<kernel::activity::CommImpl>(actor->waiting_synchro_) != nullptr)
- synchro_description = "communication";
-
- if (boost::dynamic_pointer_cast<kernel::activity::SleepImpl>(actor->waiting_synchro_) != nullptr)
- synchro_description = "sleeping";
-
- if (boost::dynamic_pointer_cast<kernel::activity::RawImpl>(actor->waiting_synchro_) != nullptr)
- synchro_description = "synchronization";
-
- if (boost::dynamic_pointer_cast<kernel::activity::IoImpl>(actor->waiting_synchro_) != nullptr)
- synchro_description = "I/O";
-
- XBT_INFO("Actor %ld (%s@%s): waiting for %s activity %#zx (%s) in state %d to finish", actor->get_pid(),
- actor->get_cname(), actor->get_host()->get_cname(), synchro_description,
- (xbt_log_no_loc ? (size_t)0xDEADBEEF : (size_t)actor->waiting_synchro_.get()),
- actor->waiting_synchro_->get_cname(), (int)actor->waiting_synchro_->state_);
- } else {
- XBT_INFO("Actor %ld (%s@%s) simcall %s", actor->get_pid(), actor->get_cname(), actor->get_host()->get_cname(),
- SIMIX_simcall_name(actor->simcall_));
- }
- }
-}
-
-} // namespace simix
-} // namespace simgrid
static simgrid::kernel::actor::ActorCode maestro_code;
void SIMIX_set_maestro(void (*code)(void*), void* data)
void SIMIX_global_init(int* argc, char** argv)
{
- if (simix_global != nullptr)
- return;
- simix_global = std::make_unique<simgrid::simix::Global>();
-
-#if SIMGRID_HAVE_MC
- // The communication initialization is done ASAP, as we need to get some init parameters from the MC for different
- // layers. But simix_global needs to be created, as we send the address of some of its fields to the MC that wants to
- // read them directly.
- simgrid::mc::AppSide::initialize();
-#endif
-
- surf_init(argc, argv); /* Initialize SURF structures */
-
- simix_global->maestro_ = nullptr;
SIMIX_context_mod_init();
// Either create a new context with maestro or create
// a context object with the current context maestro):
simgrid::kernel::actor::create_maestro(maestro_code);
-
- /* Prepare to display some more info when dying on Ctrl-C pressing */
- std::signal(SIGINT, inthandler);
-
-#ifndef _WIN32
- install_segvhandler();
-#endif
- /* register a function to be called by SURF after the environment creation */
- sg_platf_init();
- simgrid::s4u::Engine::on_platform_created.connect(surf_presolve);
-
- if (simgrid::config::get_value<bool>("debug/clean-atexit"))
- atexit(SIMIX_clean);
-}
-
-/**
- * @ingroup SIMIX_API
- * @brief Clean the SIMIX simulation
- *
- * This functions remove the memory used by SIMIX
- */
-void SIMIX_clean()
-{
- static bool smx_cleaned = false;
- if (smx_cleaned)
- return; // to avoid double cleaning by java and C
-
- smx_cleaned = true;
- XBT_DEBUG("SIMIX_clean called. Simulation's over.");
- auto* engine = simgrid::kernel::EngineImpl::get_instance();
- if (engine->has_actors_to_run() && SIMIX_get_clock() <= 0.0) {
- XBT_CRITICAL(" ");
- XBT_CRITICAL("The time is still 0, and you still have processes ready to run.");
- XBT_CRITICAL("It seems that you forgot to run the simulation that you setup.");
- xbt_die("Bailing out to avoid that stop-before-start madness. Please fix your code.");
- }
-
-#if HAVE_SMPI
- if (not simix_global->process_list.empty()) {
- if (smpi_process()->initialized()) {
- xbt_die("Process exited without calling MPI_Finalize - Killing simulation");
- } else {
- XBT_WARN("Process called exit when leaving - Skipping cleanups");
- return;
- }
- }
-#endif
-
- /* Kill all processes (but maestro) */
- simix_global->maestro_->kill_all();
- engine->run_all_actors();
- simix_global->empty_trash();
-
- /* Exit the SIMIX network module */
- SIMIX_mailbox_exit();
-
- while (not simgrid::kernel::timer::kernel_timers().empty()) {
- delete simgrid::kernel::timer::kernel_timers().top().second;
- simgrid::kernel::timer::kernel_timers().pop();
- }
- /* Free the remaining data structures */
- simix_global->actors_to_destroy.clear();
- simix_global->process_list.clear();
-
-#if SIMGRID_HAVE_MC
- xbt_dynar_free(&simix_global->actors_vector);
- xbt_dynar_free(&simix_global->dead_actors_vector);
-#endif
-
- /* Let's free maestro now */
- delete simix_global->maestro_;
- simix_global->maestro_ = nullptr;
-
- /* Finish context module and SURF */
- SIMIX_context_mod_exit();
-
- surf_exit();
-
- simix_global = nullptr;
}
/**
*
* @return Return the clock.
*/
-double SIMIX_get_clock()
+double SIMIX_get_clock() // XBT_ATTRIB_DEPRECATED_v332
{
- if (MC_is_active() || MC_record_replay_is_active()) {
- return MC_process_clock_get(SIMIX_process_self());
- } else {
- return surf_get_clock();
- }
+ return simgrid::s4u::Engine::get_clock();
}
void SIMIX_run() // XBT_ATTRIB_DEPRECATED_v332
simgrid::kernel::EngineImpl::get_instance()->run();
}
-double SIMIX_timer_next() // XBT_ATTRIB_DEPRECATED_v329
-{
- return simgrid::kernel::timer::Timer::next();
-}
-
-smx_timer_t SIMIX_timer_set(double date, void (*callback)(void*), void* arg) // XBT_ATTRIB_DEPRECATED_v329
-{
- return simgrid::kernel::timer::Timer::set(date, std::bind(callback, arg));
-}
-
-/** @brief cancels a timer that was added earlier */
-void SIMIX_timer_remove(smx_timer_t timer) // XBT_ATTRIB_DEPRECATED_v329
-{
- timer->remove();
-}
-
-/** @brief Returns the date at which the timer will trigger (or 0 if nullptr timer) */
-double SIMIX_timer_get_date(smx_timer_t timer) // XBT_ATTRIB_DEPRECATED_v329
-{
- return timer ? timer->get_date() : 0.0;
-}
-
-void SIMIX_display_process_status() // XBT_ATTRIB_DEPRECATED_v329
-{
- simix_global->display_all_actor_status();
-}
-
int SIMIX_is_maestro()
{
- if (simix_global == nullptr) // SimDag
- return true;
const simgrid::kernel::actor::ActorImpl* self = SIMIX_process_self();
- return self == nullptr || self == simix_global->maestro_;
+ return self == nullptr || simgrid::kernel::EngineImpl::get_instance()->is_maestro(self);
}
