-/* Copyright (c) 2007-2015. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2007-2017. 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 <stdlib.h>
-#include "src/portable.h"
+#include <functional>
+#include <memory>
+
+#include "src/internal_config.h"
+#include <csignal> /* Signal handling */
+#include <cstdlib>
+
+#include <xbt/algorithm.hpp>
+#include <xbt/functional.hpp>
+
+#include "simgrid/s4u/Engine.hpp"
+#include "simgrid/s4u/Host.hpp"
#include "src/surf/surf_interface.hpp"
-#include "src/surf/storage_interface.hpp"
#include "src/surf/xml/platf.hpp"
-#include "smx_private.h"
#include "smx_private.hpp"
-#include "xbt/str.h"
#include "xbt/ex.h" /* ex_backtrace_display */
+
#include "mc/mc.h"
-#include "src/mc/mc_replay.h"
#include "simgrid/sg_config.h"
+#include "src/mc/mc_replay.h"
+#include "src/surf/StorageImpl.hpp"
-#if HAVE_MC
-#include "src/mc/mc_private.h"
-#include "src/mc/mc_protocol.h"
-#include "src/mc/mc_client.h"
+#include "src/smpi/include/smpi_process.hpp"
-#include <stdlib.h>
-#include "src/mc/mc_protocol.h"
-#endif
+#include "src/kernel/activity/CommImpl.hpp"
+#include "src/kernel/activity/ExecImpl.hpp"
+#include "src/kernel/activity/SleepImpl.hpp"
+#include "src/kernel/activity/SynchroIo.hpp"
+#include "src/kernel/activity/SynchroRaw.hpp"
-#include "src/mc/mc_record.h"
+#if SIMGRID_HAVE_MC
+#include "src/mc/mc_private.hpp"
+#include "src/mc/remote/Client.hpp"
+#include "src/mc/remote/mc_protocol.h"
+#endif
+
+#include "src/mc/mc_record.hpp"
#if HAVE_SMPI
-#include "src/smpi/private.h"
+#include "src/smpi/include/private.hpp"
#endif
XBT_LOG_NEW_CATEGORY(simix, "All SIMIX categories");
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_kernel, simix, "Logging specific to SIMIX (kernel)");
-smx_global_t simix_global = NULL;
-static xbt_heap_t simix_timers = NULL;
+std::unique_ptr<simgrid::simix::Global> simix_global;
+static xbt_heap_t simix_timers = nullptr;
/** @brief Timer datatype */
-typedef struct s_smx_timer {
- double date;
- void(* func)(void*);
- void* args;
+typedef class s_smx_timer {
+ double date = 0.0;
+ s_smx_timer() = default;
+
+public:
+ simgrid::xbt::Task<void()> callback;
+ double getDate() { return date; }
+ s_smx_timer(double date, simgrid::xbt::Task<void()> callback) : date(date), callback(std::move(callback)) {}
} s_smx_timer_t;
-void (*SMPI_switch_data_segment)(int) = NULL;
-
-static void* SIMIX_synchro_mallocator_new_f(void);
-static void SIMIX_synchro_mallocator_free_f(void* synchro);
-static void SIMIX_synchro_mallocator_reset_f(void* synchro);
-
-/* FIXME: Yeah, I'll do it in a portable maner one day [Mt] */
-#include <signal.h>
+void (*SMPI_switch_data_segment)(int) = nullptr;
int _sg_do_verbose_exit = 1;
static void inthandler(int ignored)
static void segvhandler(int signum, siginfo_t *siginfo, void *context)
{
if (siginfo->si_signo == SIGSEGV && siginfo->si_code == SEGV_ACCERR) {
- fprintf(stderr,
- "Access violation detected.\n"
- "This can result from a programming error in your code or, although less likely,\n"
- "from a bug in SimGrid itself. This can also be the sign of a bug in the OS or\n"
- "in third-party libraries. Failing hardware can sometimes generate such errors\n"
- "too.\n"
- "Finally, if nothing of the above applies, this can result from a stack overflow.\n"
- "Try to increase stack size with --cfg=contexts/stack_size (current size is %d KiB).\n",
+ fprintf(stderr, "Access violation 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);
- if (XBT_LOG_ISENABLED(simix_kernel, xbt_log_priority_debug)) {
- fprintf(stderr,
- "siginfo = {si_signo = %d, si_errno = %d, si_code = %d, si_addr = %p}\n",
- siginfo->si_signo, siginfo->si_errno, siginfo->si_code, siginfo->si_addr);
- }
} else if (siginfo->si_signo == SIGSEGV) {
fprintf(stderr, "Segmentation fault.\n");
#if HAVE_SMPI
- if (smpi_enabled() && !smpi_privatize_global_variables) {
+ if (smpi_enabled() && smpi_privatize_global_variables == SMPI_PRIVATIZE_NONE) {
#if HAVE_PRIVATIZATION
- fprintf(stderr,
- "Try to enable SMPI variable privatization with --cfg=smpi/privatize_global_variables:yes.\n");
+ 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/privatize_global_variables:yes (yet).\n");
+ fprintf(stderr, "Sadly, your system does not support --cfg=smpi/privatization:yes (yet).\n");
#endif /* HAVE_PRIVATIZATION */
}
#endif /* HAVE_SMPI */
* 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(void)
+static void install_segvhandler()
{
- stack_t stack, old_stack;
+ stack_t stack;
+ stack_t old_stack;
stack.ss_sp = sigsegv_stack;
stack.ss_size = sizeof sigsegv_stack;
stack.ss_flags = 0;
XBT_WARN("Failed to register alternate signal stack: %s", strerror(errno));
return;
}
- if (!(old_stack.ss_flags & SS_DISABLE)) {
- XBT_DEBUG("An alternate stack was already installed (sp=%p, size=%zd, flags=%x). Restore it.",
- old_stack.ss_sp, old_stack.ss_size, old_stack.ss_flags);
- sigaltstack(&old_stack, NULL);
+ 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, old_action;
- action.sa_sigaction = segvhandler;
+ struct sigaction action;
+ struct sigaction old_action;
+ action.sa_sigaction = &segvhandler;
action.sa_flags = SA_ONSTACK | SA_RESETHAND | SA_SIGINFO;
sigemptyset(&action.sa_mask);
}
if ((old_action.sa_flags & SA_SIGINFO) || old_action.sa_handler != SIG_DFL) {
XBT_DEBUG("A signal handler was already installed for SIGSEGV (%p). Restore it.",
- (old_action.sa_flags & SA_SIGINFO) ?
- (void*)old_action.sa_sigaction : (void*)old_action.sa_handler);
- sigaction(SIGSEGV, &old_action, NULL);
+ (old_action.sa_flags & SA_SIGINFO) ? (void*)old_action.sa_sigaction : (void*)old_action.sa_handler);
+ sigaction(SIGSEGV, &old_action, nullptr);
}
}
#endif /* _WIN32 */
-/********************************* SIMIX **************************************/
-double SIMIX_timer_next(void)
+/********************************* SIMIX **************************************/
+double SIMIX_timer_next()
{
return xbt_heap_size(simix_timers) > 0 ? xbt_heap_maxkey(simix_timers) : -1.0;
}
-static void kill_process(smx_process_t process)
+static void kill_process(smx_actor_t process)
{
- SIMIX_process_kill(process, NULL);
-}
-
-static void SIMIX_storage_create_(smx_storage_t storage)
-{
- const char* key = xbt_dict_get_elm_key(storage);
- SIMIX_storage_create(key, storage, NULL);
+ SIMIX_process_kill(process, nullptr);
}
static std::function<void()> maestro_code;
namespace simgrid {
namespace simix {
+simgrid::xbt::signal<void()> onDeadlock;
+
XBT_PUBLIC(void) set_maestro(std::function<void()> code)
{
maestro_code = std::move(code);
void SIMIX_set_maestro(void (*code)(void*), void* data)
{
+#ifdef _WIN32
+ XBT_INFO("WARNING, SIMIX_set_maestro is believed to not work on windows. Please help us investigating this issue if you need that feature");
+#endif
maestro_code = std::bind(code, data);
}
*/
void SIMIX_global_init(int *argc, char **argv)
{
-#if HAVE_MC
- _sg_do_model_check = getenv(MC_ENV_VARIABLE) != NULL;
+#if SIMGRID_HAVE_MC
+ // The communication initialization is done ASAP.
+ // We need to communicate initialization of the different layers to the model-checker.
+ simgrid::mc::Client::initialize();
#endif
- s_smx_process_t proc;
+ if (not simix_global) {
+ simix_global = std::unique_ptr<simgrid::simix::Global>(new simgrid::simix::Global());
- if (!simix_global) {
- simix_global = xbt_new0(s_smx_global_t, 1);
-
-#ifdef TIME_BENCH_AMDAHL
- simix_global->timer_seq = xbt_os_timer_new();
- simix_global->timer_par = xbt_os_timer_new();
- xbt_os_cputimer_start(simix_global->timer_seq);
-#endif
- simix_global->process_to_run = xbt_dynar_new(sizeof(smx_process_t), NULL);
- simix_global->process_that_ran = xbt_dynar_new(sizeof(smx_process_t), NULL);
- simix_global->process_list = xbt_swag_new(xbt_swag_offset(proc, process_hookup));
+ simgrid::simix::ActorImpl proc;
simix_global->process_to_destroy = xbt_swag_new(xbt_swag_offset(proc, destroy_hookup));
-
- simix_global->maestro_process = NULL;
- simix_global->registered_functions = xbt_dict_new_homogeneous(NULL);
-
- simix_global->create_process_function = SIMIX_process_create;
- simix_global->kill_process_function = kill_process;
- simix_global->cleanup_process_function = SIMIX_process_cleanup;
- simix_global->synchro_mallocator = xbt_mallocator_new(65536,
- SIMIX_synchro_mallocator_new_f, SIMIX_synchro_mallocator_free_f,
- SIMIX_synchro_mallocator_reset_f);
+ simix_global->maestro_process = nullptr;
+ simix_global->create_process_function = &SIMIX_process_create;
+ simix_global->kill_process_function = &kill_process;
+ simix_global->cleanup_process_function = &SIMIX_process_cleanup;
simix_global->mutex = xbt_os_mutex_init();
surf_init(argc, argv); /* Initialize SURF structures */
// a context object with the current context mestro):
simgrid::simix::create_maestro(maestro_code);
- /* context exception handlers */
- __xbt_running_ctx_fetch = SIMIX_process_get_running_context;
- __xbt_ex_terminate = SIMIX_process_exception_terminate;
-
- SIMIX_network_init();
-
/* Prepare to display some more info when dying on Ctrl-C pressing */
signal(SIGINT, inthandler);
#endif
/* register a function to be called by SURF after the environment creation */
sg_platf_init();
- simgrid::surf::on_postparse.connect(SIMIX_post_create_environment);
+ simgrid::s4u::onPlatformCreated.connect(SIMIX_post_create_environment);
simgrid::s4u::Host::onCreation.connect([](simgrid::s4u::Host& host) {
- SIMIX_host_create(&host);
+ if (host.extension<simgrid::simix::Host>() == nullptr) // another callback to the same signal may have created it
+ host.extension_set<simgrid::simix::Host>(new simgrid::simix::Host());
});
- SIMIX_HOST_LEVEL = simgrid::s4u::Host::extension_create(SIMIX_host_destroy);
- simgrid::surf::storageCreatedCallbacks.connect([](simgrid::surf::Storage* storage) {
- const char* id = storage->getName();
- // TODO, create sg_storage_by_name
- sg_storage_t s = xbt_lib_get_elm_or_null(storage_lib, id);
- xbt_assert(s != NULL, "Storage not found for name %s", id);
- SIMIX_storage_create_(s);
- });
-
- SIMIX_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, SIMIX_storage_destroy);
- }
- if (!simix_timers) {
- simix_timers = xbt_heap_new(8, &free);
+ simgrid::surf::storageCreatedCallbacks.connect([](simgrid::surf::StorageImpl* storage) {
+ sg_storage_t s = simgrid::s4u::Storage::byName(storage->cname());
+ xbt_assert(s != nullptr, "Storage not found for name %s", storage->cname());
+ });
}
- if (sg_cfg_get_boolean("clean_atexit"))
- atexit(SIMIX_clean);
+ if (not simix_timers)
+ simix_timers = xbt_heap_new(8, [](void* p) {
+ delete static_cast<smx_timer_t>(p);
+ });
-#if HAVE_MC
- // The communication initialization is done ASAP.
- // We need to communicate initialization of the different layers to the model-checker.
- MC_client_init();
-#endif
+ if (xbt_cfg_get_boolean("clean-atexit"))
+ atexit(SIMIX_clean);
if (_sg_cfg_exit_asap)
exit(0);
*
* This functions remove the memory used by SIMIX
*/
-void SIMIX_clean(void)
+void SIMIX_clean()
{
-#ifdef TIME_BENCH_PER_SR
- smx_ctx_raw_new_sr();
+ if (smx_cleaned)
+ return; // to avoid double cleaning by java and C
+
+#if HAVE_SMPI
+ if (SIMIX_process_count()>0){
+ 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
- if (smx_cleaned) return; // to avoid double cleaning by java and C
+
smx_cleaned = 1;
XBT_DEBUG("SIMIX_clean called. Simulation's over.");
- if (!xbt_dynar_is_empty(simix_global->process_to_run) && SIMIX_get_clock() == 0.0) {
+ if (not simix_global->process_to_run.empty() && 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.");
}
/* Kill all processes (but maestro) */
SIMIX_process_killall(simix_global->maestro_process, 1);
+ SIMIX_context_runall();
+ SIMIX_process_empty_trash();
/* Exit the SIMIX network module */
- SIMIX_network_exit();
+ SIMIX_mailbox_exit();
xbt_heap_free(simix_timers);
- simix_timers = NULL;
+ simix_timers = nullptr;
/* Free the remaining data structures */
- xbt_dynar_free(&simix_global->process_to_run);
- xbt_dynar_free(&simix_global->process_that_ran);
+ simix_global->process_to_run.clear();
+ simix_global->process_that_ran.clear();
xbt_swag_free(simix_global->process_to_destroy);
- xbt_swag_free(simix_global->process_list);
- simix_global->process_list = NULL;
- simix_global->process_to_destroy = NULL;
- xbt_dict_free(&(simix_global->registered_functions));
+ simix_global->process_list.clear();
+ simix_global->process_to_destroy = nullptr;
xbt_os_mutex_destroy(simix_global->mutex);
- simix_global->mutex = NULL;
+ simix_global->mutex = nullptr;
+#if SIMGRID_HAVE_MC
+ xbt_dynar_free(&simix_global->actors_vector);
+#endif
/* Let's free maestro now */
- SIMIX_context_free(simix_global->maestro_process->context);
- xbt_free(simix_global->maestro_process->running_ctx);
- xbt_free(simix_global->maestro_process);
- simix_global->maestro_process = NULL;
-
- /* Restore the default exception setup */
- __xbt_running_ctx_fetch = &__xbt_ex_ctx_default;
- __xbt_ex_terminate = &__xbt_ex_terminate_default;
+ delete simix_global->maestro_process->context;
+ simix_global->maestro_process->context = nullptr;
+ delete simix_global->maestro_process;
+ simix_global->maestro_process = nullptr;
/* Finish context module and SURF */
SIMIX_context_mod_exit();
surf_exit();
-#ifdef TIME_BENCH_AMDAHL
- xbt_os_cputimer_stop(simix_global->timer_seq);
- XBT_INFO("Amdahl timing informations. Sequential time: %f; Parallel time: %f",
- xbt_os_timer_elapsed(simix_global->timer_seq),
- xbt_os_timer_elapsed(simix_global->timer_par));
- xbt_os_timer_free(simix_global->timer_seq);
- xbt_os_timer_free(simix_global->timer_par);
-#endif
-
- xbt_mallocator_free(simix_global->synchro_mallocator);
- xbt_free(simix_global);
- simix_global = NULL;
-
- return;
+ simix_global = nullptr;
}
*
* \return Return the clock.
*/
-double SIMIX_get_clock(void)
+double SIMIX_get_clock()
{
if(MC_is_active() || MC_record_replay_is_active()){
return MC_process_clock_get(SIMIX_process_self());
}
}
-static int process_syscall_color(void *p)
+/** Wake up all processes waiting for a Surf action to finish */
+static void SIMIX_wake_processes()
{
- switch ((*(smx_process_t *)p)->simcall.call) {
- case SIMCALL_NONE:
- case SIMCALL_PROCESS_KILL:
- return 2;
- case SIMCALL_PROCESS_RESUME:
- return 1;
- default:
- return 0;
+ surf_action_t action;
+
+ for (auto const& model : *all_existing_models) {
+ XBT_DEBUG("Handling the processes whose action failed (if any)");
+ while ((action = surf_model_extract_failed_action_set(model))) {
+ XBT_DEBUG(" Handling Action %p",action);
+ SIMIX_simcall_exit(static_cast<simgrid::kernel::activity::ActivityImpl*>(action->getData()));
+ }
+ XBT_DEBUG("Handling the processes whose action terminated normally (if any)");
+ while ((action = surf_model_extract_done_action_set(model))) {
+ XBT_DEBUG(" Handling Action %p",action);
+ if (action->getData() == nullptr)
+ XBT_DEBUG("probably vcpu's action %p, skip", action);
+ else
+ SIMIX_simcall_exit(static_cast<simgrid::kernel::activity::ActivityImpl*>(action->getData()));
+ }
}
}
+/** Handle any pending timer */
+static bool SIMIX_execute_timers()
+{
+ bool result = false;
+ while (xbt_heap_size(simix_timers) > 0 && SIMIX_get_clock() >= SIMIX_timer_next()) {
+ result = true;
+ //FIXME: make the timers being real callbacks
+ // (i.e. provide dispatchers that read and expand the args)
+ smx_timer_t timer = (smx_timer_t) xbt_heap_pop(simix_timers);
+ try {
+ timer->callback();
+ }
+ catch(...) {
+ xbt_die("Exception throwed ouf of timer callback");
+ }
+ delete timer;
+ }
+ return result;
+}
+
+/** Execute all the tasks that are queued
+ *
+ * e.g. `.then()` callbacks of futures.
+ **/
+static bool SIMIX_execute_tasks()
+{
+ xbt_assert(simix_global->tasksTemp.empty());
+
+ if (simix_global->tasks.empty())
+ return false;
+
+ using std::swap;
+ do {
+ // We don't want the callbacks to modify the vector we are iterating over:
+ swap(simix_global->tasks, simix_global->tasksTemp);
+
+ // Execute all the queued tasks:
+ for (auto& task : simix_global->tasksTemp)
+ task();
+
+ simix_global->tasksTemp.clear();
+ } while (not simix_global->tasks.empty());
+
+ return true;
+}
+
/**
* \ingroup SIMIX_API
* \brief Run the main simulation loop.
*/
-void SIMIX_run(void)
+void SIMIX_run()
{
- if(MC_record_path) {
- MC_record_replay_init();
- MC_record_replay_from_string(MC_record_path);
+ if (MC_record_path) {
+ simgrid::mc::replay(MC_record_path);
return;
}
double time = 0;
- smx_process_t process;
- surf_action_t action;
- smx_timer_t timer;
- surf_model_t model;
- unsigned int iter;
do {
- XBT_DEBUG("New Schedule Round; size(queue)=%lu",
- xbt_dynar_length(simix_global->process_to_run));
-#ifdef TIME_BENCH_PER_SR
- smx_ctx_raw_new_sr();
-#endif
- while (!xbt_dynar_is_empty(simix_global->process_to_run)) {
- XBT_DEBUG("New Sub-Schedule Round; size(queue)=%lu",
- xbt_dynar_length(simix_global->process_to_run));
+ XBT_DEBUG("New Schedule Round; size(queue)=%zu", simix_global->process_to_run.size());
+
+ SIMIX_execute_tasks();
+
+ while (not simix_global->process_to_run.empty()) {
+ XBT_DEBUG("New Sub-Schedule Round; size(queue)=%zu", simix_global->process_to_run.size());
/* Run all processes that are ready to run, possibly in parallel */
-#ifdef TIME_BENCH_AMDAHL
- xbt_os_cputimer_stop(simix_global->timer_seq);
- xbt_os_cputimer_resume(simix_global->timer_par);
-#endif
SIMIX_process_runall();
-#ifdef TIME_BENCH_AMDAHL
- xbt_os_cputimer_stop(simix_global->timer_par);
- xbt_os_cputimer_resume(simix_global->timer_seq);
-#endif
-
- /* Move all killer processes to the end of the list, because killing a process that have an ongoing simcall is a bad idea */
- xbt_dynar_three_way_partition(simix_global->process_that_ran, process_syscall_color);
/* answer sequentially and in a fixed arbitrary order all the simcalls that were issued during that sub-round */
* That would thus be a pure waste of time.
*/
- xbt_dynar_foreach(simix_global->process_that_ran, iter, process) {
+ for (smx_actor_t const& process : simix_global->process_that_ran) {
if (process->simcall.call != SIMCALL_NONE) {
SIMIX_simcall_handle(&process->simcall, 0);
}
}
- /* Wake up all processes waiting for a Surf action to finish */
- xbt_dynar_foreach(all_existing_models, iter, model) {
- XBT_DEBUG("Handling process whose action failed");
- while ((action = surf_model_extract_failed_action_set(model))) {
- XBT_DEBUG(" Handling Action %p",action);
- SIMIX_simcall_exit((smx_synchro_t) action->getData());
- }
- XBT_DEBUG("Handling process whose action terminated normally");
- while ((action = surf_model_extract_done_action_set(model))) {
- XBT_DEBUG(" Handling Action %p",action);
- if (action->getData() == NULL)
- XBT_DEBUG("probably vcpu's action %p, skip", action);
- else
- SIMIX_simcall_exit((smx_synchro_t) action->getData());
+
+ SIMIX_execute_tasks();
+ do {
+ SIMIX_wake_processes();
+ } while (SIMIX_execute_tasks());
+
+ /* If only daemon processes remain, cancel their actions, mark them to die and reschedule them */
+ if (simix_global->process_list.size() == simix_global->daemons.size())
+ for (auto const& dmon : simix_global->daemons) {
+ XBT_DEBUG("Kill %s", dmon->cname());
+ SIMIX_process_kill(dmon, simix_global->maestro_process);
}
- }
}
time = SIMIX_timer_next();
- if (time != -1.0 || xbt_swag_size(simix_global->process_list) != 0) {
+ if (time > -1.0 || not simix_global->process_list.empty()) {
XBT_DEBUG("Calling surf_solve");
time = surf_solve(time);
XBT_DEBUG("Moving time ahead : %g", time);
}
+
/* Notify all the hosts that have failed */
/* FIXME: iterate through the list of failed host and mark each of them */
/* as failed. On each host, signal all the running processes with host_fail */
- /* Handle any pending timer */
- while (xbt_heap_size(simix_timers) > 0 && SIMIX_get_clock() >= SIMIX_timer_next()) {
- //FIXME: make the timers being real callbacks
- // (i.e. provide dispatchers that read and expand the args)
- timer = (smx_timer_t) xbt_heap_pop(simix_timers);
- if (timer->func)
- timer->func(timer->args);
- xbt_free(timer);
- }
-
- /* Wake up all processes waiting for a Surf action to finish */
- xbt_dynar_foreach(all_existing_models, iter, model) {
- XBT_DEBUG("Handling process whose action failed");
- while ((action = surf_model_extract_failed_action_set(model))) {
- XBT_DEBUG(" Handling Action %p",action);
- SIMIX_simcall_exit((smx_synchro_t) action->getData());
- }
- XBT_DEBUG("Handling process whose action terminated normally");
- while ((action = surf_model_extract_done_action_set(model))) {
- XBT_DEBUG(" Handling Action %p",action);
- if (action->getData() == NULL)
- XBT_DEBUG("probably vcpu's action %p, skip", action);
- else
- SIMIX_simcall_exit((smx_synchro_t) action->getData());
- }
- }
+ // Execute timers and tasks until there isn't anything to be done:
+ bool again = false;
+ do {
+ again = SIMIX_execute_timers();
+ if (SIMIX_execute_tasks())
+ again = true;
+ SIMIX_wake_processes();
+ } while (again);
/* Autorestart all process */
- char *hostname = NULL;
- xbt_dynar_foreach(host_that_restart,iter,hostname) {
- XBT_INFO("Restart processes on host: %s",hostname);
- SIMIX_host_autorestart(sg_host_by_name(hostname));
+ for (auto const& host : host_that_restart) {
+ XBT_INFO("Restart processes on host %s", host->getCname());
+ SIMIX_host_autorestart(host);
}
- xbt_dynar_reset(host_that_restart);
+ host_that_restart.clear();
/* Clean processes to destroy */
SIMIX_process_empty_trash();
+ XBT_DEBUG("### time %f, #processes %zu, #to_run %zu", time, simix_global->process_list.size(),
+ simix_global->process_to_run.size());
- XBT_DEBUG("### time %f, empty %d", time, xbt_dynar_is_empty(simix_global->process_to_run));
+ if (simix_global->process_to_run.empty() && not simix_global->process_list.empty())
+ simgrid::simix::onDeadlock();
- } while (time != -1.0 || !xbt_dynar_is_empty(simix_global->process_to_run));
+ } while (time > -1.0 || not simix_global->process_to_run.empty());
- if (xbt_swag_size(simix_global->process_list) != 0) {
+ if (not simix_global->process_list.empty()) {
- TRACE_end();
+ TRACE_end();
XBT_CRITICAL("Oops ! Deadlock or code not perfectly clean.");
SIMIX_display_process_status();
xbt_abort();
}
+ simgrid::s4u::onSimulationEnd();
}
/**
*
* Set the date to execute the function on the surf.
* \param date Date to execute function
- * \param function Function to be executed
+ * \param callback Function to be executed
* \param arg Parameters of the function
*
*/
-smx_timer_t SIMIX_timer_set(double date, void (*function)(void*), void *arg)
+smx_timer_t SIMIX_timer_set(double date, void (*callback)(void*), void *arg)
{
- smx_timer_t timer = xbt_new0(s_smx_timer_t, 1);
+ smx_timer_t timer = new s_smx_timer_t(date, [callback, arg]() { callback(arg); });
+ xbt_heap_push(simix_timers, timer, date);
+ return timer;
+}
- timer->date = date;
- timer->func = function;
- timer->args = arg;
+smx_timer_t SIMIX_timer_set(double date, simgrid::xbt::Task<void()> callback)
+{
+ smx_timer_t timer = new s_smx_timer_t(date, std::move(callback));
xbt_heap_push(simix_timers, timer, date);
return timer;
}
+
/** @brief cancels a timer that was added earlier */
void SIMIX_timer_remove(smx_timer_t timer) {
- xbt_heap_rm_elm(simix_timers, timer, timer->date);
+ delete static_cast<smx_timer_t>(xbt_heap_rm_elm(simix_timers, timer, timer->getDate()));
}
-/** @brief Returns the date at which the timer will trigger (or 0 if NULL timer) */
+/** @brief Returns the date at which the timer will trigger (or 0 if nullptr timer) */
double SIMIX_timer_get_date(smx_timer_t timer) {
- return timer?timer->date:0;
+ return timer ? timer->getDate() : 0;
}
/**
* to call SIMIX_process_create().
* \param function create process function
*/
-void SIMIX_function_register_process_create(smx_creation_func_t
- function)
+void SIMIX_function_register_process_create(smx_creation_func_t function)
{
simix_global->create_process_function = function;
}
/**
* \brief Registers a function to kill a process.
*
- * This function registers a function to be called when a
- * process is killed. The function has to call the SIMIX_process_kill().
+ * This function registers a function to be called when a process is killed. The function has to call the
+ * SIMIX_process_kill().
*
* \param function Kill process function
*/
-void SIMIX_function_register_process_kill(void_pfn_smxprocess_t
- function)
+void SIMIX_function_register_process_kill(void_pfn_smxprocess_t function)
{
simix_global->kill_process_function = function;
}
/**
* \brief Registers a function to cleanup a process.
*
- * This function registers a user function to be called when
- * a process ends properly.
+ * This function registers a user function to be called when a process ends properly.
*
* \param function cleanup process function
*/
-void SIMIX_function_register_process_cleanup(void_pfn_smxprocess_t
- function)
+void SIMIX_function_register_process_cleanup(void_pfn_smxprocess_t function)
{
simix_global->cleanup_process_function = function;
}
-void SIMIX_display_process_status(void)
+void SIMIX_display_process_status()
{
- if (simix_global->process_list == NULL) {
- return;
- }
-
- smx_process_t process = NULL;
- int nbprocess = xbt_swag_size(simix_global->process_list);
+ int nbprocess = simix_global->process_list.size();
XBT_INFO("%d processes are still running, waiting for something.", nbprocess);
/* List the process and their state */
- XBT_INFO
- ("Legend of the following listing: \"Process <pid> (<name>@<host>): <status>\"");
- xbt_swag_foreach(process, simix_global->process_list) {
+ XBT_INFO("Legend of the following listing: \"Process <pid> (<name>@<host>): <status>\"");
+ for (auto const& kv : simix_global->process_list) {
+ smx_actor_t process = kv.second;
if (process->waiting_synchro) {
const char* synchro_description = "unknown";
- switch (process->waiting_synchro->type) {
- case SIMIX_SYNC_EXECUTE:
+ if (boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(process->waiting_synchro) != nullptr)
synchro_description = "execution";
- break;
- case SIMIX_SYNC_PARALLEL_EXECUTE:
- synchro_description = "parallel execution";
- break;
-
- case SIMIX_SYNC_COMMUNICATE:
+ if (boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(process->waiting_synchro) != nullptr)
synchro_description = "communication";
- break;
- case SIMIX_SYNC_SLEEP:
+ if (boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(process->waiting_synchro) != nullptr)
synchro_description = "sleeping";
- break;
-
- case SIMIX_SYNC_JOIN:
- synchro_description = "joining";
- break;
- case SIMIX_SYNC_SYNCHRO:
+ if (boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(process->waiting_synchro) != nullptr)
synchro_description = "synchronization";
- break;
- case SIMIX_SYNC_IO:
+ if (boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(process->waiting_synchro) != nullptr)
synchro_description = "I/O";
- break;
- }
- XBT_INFO("Process %lu (%s@%s): waiting for %s synchro %p (%s) in state %d to finish",
- process->pid, process->name, sg_host_get_name(process->host),
- synchro_description, process->waiting_synchro,
- process->waiting_synchro->name, (int)process->waiting_synchro->state);
+
+ XBT_INFO("Process %lu (%s@%s): waiting for %s synchro %p (%s) in state %d to finish", process->pid,
+ process->cname(), process->host->getCname(), synchro_description, process->waiting_synchro.get(),
+ process->waiting_synchro->name.c_str(), (int)process->waiting_synchro->state);
}
else {
- XBT_INFO("Process %lu (%s@%s)", process->pid, process->name, sg_host_get_name(process->host));
+ XBT_INFO("Process %lu (%s@%s)", process->pid, process->cname(), process->host->getCname());
}
}
}
-static void* SIMIX_synchro_mallocator_new_f(void) {
- smx_synchro_t synchro = xbt_new(s_smx_synchro_t, 1);
- synchro->simcalls = xbt_fifo_new();
- return synchro;
-}
-
-static void SIMIX_synchro_mallocator_free_f(void* synchro) {
- xbt_fifo_free(((smx_synchro_t) synchro)->simcalls);
- xbt_free(synchro);
-}
-
-static void SIMIX_synchro_mallocator_reset_f(void* synchro) {
-
- // we also recycle the simcall list
- xbt_fifo_t fifo = ((smx_synchro_t) synchro)->simcalls;
- xbt_fifo_reset(fifo);
- memset(synchro, 0, sizeof(s_smx_synchro_t));
- ((smx_synchro_t) synchro)->simcalls = fifo;
-}
-
-xbt_dict_t simcall_HANDLER_asr_get_properties(smx_simcall_t simcall, const char *name){
- return SIMIX_asr_get_properties(name);
-}
-xbt_dict_t SIMIX_asr_get_properties(const char *name)
-{
- return (xbt_dict_t) xbt_lib_get_or_null(as_router_lib, name, ROUTING_PROP_ASR_LEVEL);
-}
-
int SIMIX_is_maestro()
{
- return simix_global==NULL /*SimDag*/|| SIMIX_process_self() == simix_global->maestro_process;
+ smx_actor_t self = SIMIX_process_self();
+ return simix_global == nullptr /*SimDag*/ || self == nullptr || self == simix_global->maestro_process;
}