1 /* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #include <boost/range/algorithm.hpp>
15 #include "xbt/functional.hpp"
17 #include "xbt/sysdep.h"
18 #include "xbt/utility.hpp"
20 #include "simgrid/s4u/Host.hpp"
24 #include "smx_private.hpp"
25 #include "src/kernel/activity/SleepImpl.hpp"
26 #include "src/kernel/activity/SynchroIo.hpp"
27 #include "src/kernel/activity/SynchroRaw.hpp"
28 #include "src/mc/mc_replay.hpp"
29 #include "src/mc/remote/Client.hpp"
30 #include "src/msg/msg_private.hpp"
31 #include "src/surf/cpu_interface.hpp"
32 #include "src/surf/surf_interface.hpp"
35 #include "src/smpi/include/private.hpp"
38 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_process, simix, "Logging specific to SIMIX (process)");
40 unsigned long simix_process_maxpid = 0;
43 * \brief Returns the current agent.
45 * This functions returns the currently running SIMIX process.
47 * \return The SIMIX process
49 smx_actor_t SIMIX_process_self()
51 smx_context_t self_context = SIMIX_context_self();
53 return (self_context != nullptr) ? self_context->process() : nullptr;
57 * \brief Returns whether a process has pending asynchronous communications.
58 * \return true if there are asynchronous communications in this process
60 int SIMIX_process_has_pending_comms(smx_actor_t process) {
62 return process->comms.size() > 0;
66 * \brief Moves a process to the list of processes to destroy.
68 void SIMIX_process_cleanup(smx_actor_t process)
70 XBT_DEBUG("Cleanup process %s (%p), waiting synchro %p", process->name.c_str(), process,
71 process->waiting_synchro.get());
73 process->finished = true;
74 SIMIX_process_on_exit_runall(process);
76 /* Unregister from the kill timer if any */
77 if (process->kill_timer != nullptr) {
78 SIMIX_timer_remove(process->kill_timer);
79 process->kill_timer = nullptr;
82 xbt_os_mutex_acquire(simix_global->mutex);
84 /* cancel non-blocking communications */
85 while (not process->comms.empty()) {
86 smx_activity_t synchro = process->comms.front();
87 process->comms.pop_front();
88 simgrid::kernel::activity::CommImplPtr comm =
89 boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro);
91 /* make sure no one will finish the comm after this process is destroyed,
92 * because src_proc or dst_proc would be an invalid pointer */
94 if (comm->src_proc == process) {
95 XBT_DEBUG("Found an unfinished send comm %p (detached = %d), state %d, src = %p, dst = %p", comm.get(),
96 comm->detached, (int)comm->state, comm->src_proc, comm->dst_proc);
97 comm->src_proc = nullptr;
99 } else if (comm->dst_proc == process) {
100 XBT_DEBUG("Found an unfinished recv comm %p, state %d, src = %p, dst = %p", comm.get(), (int)comm->state,
101 comm->src_proc, comm->dst_proc);
102 comm->dst_proc = nullptr;
104 if (comm->detached && comm->src_proc != nullptr) {
105 /* the comm will be freed right now, remove it from the sender */
106 comm->src_proc->comms.remove(comm);
109 xbt_die("Communication synchro %p is in my list but I'm not the sender nor the receiver", synchro.get());
114 XBT_DEBUG("%p should not be run anymore",process);
115 simix_global->process_list.erase(process->pid);
116 if (process->host && process->host_process_list_hook.is_linked())
117 simgrid::xbt::intrusive_erase(process->host->extension<simgrid::simix::Host>()->process_list, *process);
118 if (not process->smx_destroy_list_hook.is_linked()) {
120 xbt_dynar_push_as(simix_global->dead_actors_vector, smx_actor_t, process);
122 simix_global->process_to_destroy.push_back(*process);
124 process->context->iwannadie = 0;
126 xbt_os_mutex_release(simix_global->mutex);
132 * Should be called some time to time to free the memory allocated for processes that have finished (or killed).
134 void SIMIX_process_empty_trash()
136 while (not simix_global->process_to_destroy.empty()) {
137 smx_actor_t process = &simix_global->process_to_destroy.front();
138 simix_global->process_to_destroy.pop_front();
139 XBT_DEBUG("Getting rid of %p",process);
140 intrusive_ptr_release(process);
143 xbt_dynar_reset(simix_global->dead_actors_vector);
152 ActorImpl::~ActorImpl()
154 delete this->context;
157 static int dying_daemon(void* exit_status, void* data)
159 std::vector<ActorImpl*>* vect = &simix_global->daemons;
161 auto it = std::find(vect->begin(), vect->end(), static_cast<ActorImpl*>(data));
162 xbt_assert(it != vect->end(), "The dying daemon is not a daemon after all. Please report that bug.");
164 /* Don't move the whole content since we don't really care about the order */
165 std::swap(*it, vect->back());
170 /** This process will be terminated automatically when the last non-daemon process finishes */
171 void ActorImpl::daemonize()
175 simix_global->daemons.push_back(this);
176 SIMIX_process_on_exit(this, dying_daemon, this);
180 simgrid::s4u::Actor* ActorImpl::restart()
182 XBT_DEBUG("Restarting process %s on %s", getCname(), host->getCname());
184 // retrieve the arguments of the old process
185 // FIXME: Factorize this with SIMIX_host_add_auto_restart_process ?
186 simgrid::kernel::actor::ProcessArg arg;
190 arg.kill_time = SIMIX_timer_get_date(kill_timer);
192 arg.properties = nullptr;
193 arg.auto_restart = auto_restart;
195 // kill the old process
196 SIMIX_process_kill(this, (this == simix_global->maestro_process) ? this : SIMIX_process_self());
198 // start the new process
199 ActorImpl* actor = simix_global->create_process_function(arg.name.c_str(), std::move(arg.code), arg.data, arg.host,
200 arg.properties.get(), nullptr);
201 if (arg.kill_time >= 0)
202 simcall_process_set_kill_time(actor, arg.kill_time);
203 if (arg.auto_restart)
204 actor->auto_restart = arg.auto_restart;
206 return actor->ciface();
209 smx_activity_t ActorImpl::suspend(ActorImpl* issuer)
212 XBT_DEBUG("Actor '%s' is already suspended", name.c_str());
218 /* If we are suspending another actor that is waiting on a sync, suspend its synchronization. */
219 if (this != issuer) {
221 waiting_synchro->suspend();
222 /* If the other actor is not waiting, its suspension is delayed to when the actor is rescheduled. */
226 return SIMIX_execution_start("suspend", 0.0, 1.0, 0.0, this->host);
230 void ActorImpl::resume()
232 XBT_IN("process = %p", this);
234 if (context->iwannadie) {
235 XBT_VERB("Ignoring request to suspend an actor that is currently dying.");
243 /* resume the synchronization that was blocking the resumed actor. */
245 waiting_synchro->resume();
250 smx_activity_t ActorImpl::sleep(double duration)
253 THROWF(host_error, 0, "Host %s failed, you cannot sleep there.", host->getCname());
255 simgrid::kernel::activity::SleepImpl* synchro = new simgrid::kernel::activity::SleepImpl();
256 synchro->host = host;
257 synchro->surf_sleep = host->pimpl_cpu->sleep(duration);
258 synchro->surf_sleep->set_data(synchro);
259 XBT_DEBUG("Create sleep synchronization %p", synchro);
264 void create_maestro(std::function<void()> code)
266 smx_actor_t maestro = nullptr;
267 /* Create maestro process and initialize it */
268 maestro = new simgrid::kernel::actor::ActorImpl();
269 maestro->pid = simix_process_maxpid++;
271 maestro->userdata = nullptr;
274 maestro->context = SIMIX_context_new(std::function<void()>(), nullptr, maestro);
276 if (not simix_global)
277 xbt_die("simix is not initialized, please call MSG_init first");
278 maestro->context = simix_global->context_factory->create_maestro(code, maestro);
281 maestro->simcall.issuer = maestro;
282 simix_global->maestro_process = maestro;
289 /** @brief Creates and runs the maestro process */
290 void SIMIX_maestro_create(void (*code)(void*), void* data)
292 simgrid::kernel::actor::create_maestro(std::bind(code, data));
296 * \brief Internal function to create a process.
298 * This function actually creates the process.
299 * It may be called when a SIMCALL_PROCESS_CREATE simcall occurs,
300 * or directly for SIMIX internal purposes. The sure thing is that it's called from maestro context.
302 * \return the process created
304 smx_actor_t SIMIX_process_create(const char* name, std::function<void()> code, void* data, simgrid::s4u::Host* host,
305 std::map<std::string, std::string>* properties, smx_actor_t parent_process)
308 XBT_DEBUG("Start process %s on host '%s'", name, host->getCname());
311 XBT_WARN("Cannot launch process '%s' on failed host '%s'", name, host->getCname());
315 smx_actor_t process = new simgrid::kernel::actor::ActorImpl();
317 xbt_assert(code && host != nullptr, "Invalid parameters");
319 process->pid = simix_process_maxpid++;
320 process->name = simgrid::xbt::string(name);
321 process->host = host;
322 process->userdata = data;
323 process->simcall.issuer = process;
325 if (parent_process != nullptr) {
326 process->ppid = parent_process->pid;
329 process->code = code;
331 XBT_VERB("Create context %s", process->name.c_str());
332 process->context = SIMIX_context_new(std::move(code), simix_global->cleanup_process_function, process);
335 if (properties != nullptr)
336 for (auto const& kv : *properties)
337 process->setProperty(kv.first, kv.second);
339 /* Make sure that the process is initialized for simix, in case we are called from the Host::onCreation signal */
340 if (host->extension<simgrid::simix::Host>() == nullptr)
341 host->extension_set<simgrid::simix::Host>(new simgrid::simix::Host());
343 /* Add the process to its host's process list */
344 host->extension<simgrid::simix::Host>()->process_list.push_back(*process);
346 XBT_DEBUG("Start context '%s'", process->name.c_str());
348 /* Now insert it in the global process list and in the process to run list */
349 simix_global->process_list[process->pid] = process;
350 XBT_DEBUG("Inserting %s(%s) in the to_run list", process->getCname(), host->getCname());
351 simix_global->process_to_run.push_back(process);
352 intrusive_ptr_add_ref(process);
353 /* Tracing the process creation */
354 if (TRACE_actor_is_enabled())
355 simgrid::instr::Container::byName(process->host->getName())->createChild(instr_pid(process->ciface()), "ACTOR");
356 /* The onCreation() signal must be delayed until there, where the pid and everything is set */
357 simgrid::s4u::ActorPtr tmp = process->iface(); // Passing this directly to onCreation will lead to crashes
358 simgrid::s4u::Actor::onCreation(tmp);
363 smx_actor_t SIMIX_process_attach(const char* name, void* data, const char* hostname,
364 std::map<std::string, std::string>* properties, smx_actor_t parent_process)
366 // This is mostly a copy/paste from SIMIX_process_new(),
367 // it'd be nice to share some code between those two functions.
369 sg_host_t host = sg_host_by_name(hostname);
370 XBT_DEBUG("Attach process %s on host '%s'", name, hostname);
373 XBT_WARN("Cannot launch process '%s' on failed host '%s'", name, hostname);
377 smx_actor_t process = new simgrid::kernel::actor::ActorImpl();
379 process->pid = simix_process_maxpid++;
380 process->name = std::string(name);
381 process->host = host;
382 process->userdata = data;
383 process->simcall.issuer = process;
385 if (parent_process != nullptr) {
386 process->ppid = parent_process->pid;
389 /* Process data for auto-restart */
390 process->code = nullptr;
392 XBT_VERB("Create context %s", process->name.c_str());
393 if (not simix_global)
394 xbt_die("simix is not initialized, please call MSG_init first");
395 process->context = simix_global->context_factory->attach(simix_global->cleanup_process_function, process);
398 if (properties != nullptr)
399 for (auto const& kv : *properties)
400 process->setProperty(kv.first, kv.second);
402 /* Add the process to it's host process list */
403 host->extension<simgrid::simix::Host>()->process_list.push_back(*process);
405 /* Now insert it in the global process list and in the process to run list */
406 simix_global->process_list[process->pid] = process;
407 XBT_DEBUG("Inserting %s(%s) in the to_run list", process->getCname(), host->getCname());
408 simix_global->process_to_run.push_back(process);
409 intrusive_ptr_add_ref(process);
411 /* Tracing the process creation */
412 if (TRACE_actor_is_enabled())
413 simgrid::instr::Container::byName(process->host->getName())->createChild(instr_pid(process->ciface()), "ACTOR");
415 auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(process->context);
417 xbt_die("Not a suitable context");
419 context->attach_start();
423 void SIMIX_process_detach()
425 auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(SIMIX_context_self());
427 xbt_die("Not a suitable context");
429 auto process = context->process();
430 simix_global->cleanup_process_function(process);
431 context->attach_stop();
435 * \brief Executes the processes from simix_global->process_to_run.
437 * The processes of simix_global->process_to_run are run (in parallel if
438 * possible). On exit, simix_global->process_to_run is empty, and
439 * simix_global->process_that_ran contains the list of processes that just ran.
440 * The two lists are swapped so, be careful when using them before and after a
441 * call to this function.
443 void SIMIX_process_runall()
445 SIMIX_context_runall();
447 simix_global->process_to_run.swap(simix_global->process_that_ran);
448 simix_global->process_to_run.clear();
452 * \brief Internal function to kill a SIMIX process.
454 * This function may be called when a SIMCALL_PROCESS_KILL simcall occurs,
455 * or directly for SIMIX internal purposes.
457 * \param process poor victim
458 * \param issuer the process which has sent the PROCESS_KILL. Important to not schedule twice the same process.
460 void SIMIX_process_kill(smx_actor_t process, smx_actor_t issuer) {
462 if (process->finished) {
463 XBT_DEBUG("Ignoring request to kill process %s@%s that is already dead", process->getCname(),
464 process->host->getCname());
468 XBT_DEBUG("Actor '%s'@%s is killing actor '%s'@%s", issuer->getCname(), issuer->host->getCname(), process->getCname(),
469 process->host->getCname());
471 process->context->iwannadie = 1;
472 process->blocked = 0;
473 process->suspended = 0;
474 process->exception = nullptr;
476 /* destroy the blocking synchro if any */
477 if (process->waiting_synchro != nullptr) {
479 simgrid::kernel::activity::ExecImplPtr exec =
480 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(process->waiting_synchro);
481 simgrid::kernel::activity::CommImplPtr comm =
482 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(process->waiting_synchro);
483 simgrid::kernel::activity::SleepImplPtr sleep =
484 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(process->waiting_synchro);
485 simgrid::kernel::activity::RawImplPtr raw =
486 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(process->waiting_synchro);
487 simgrid::kernel::activity::IoImplPtr io =
488 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(process->waiting_synchro);
490 if (exec != nullptr) {
491 if (exec->surfAction_) {
492 exec->surfAction_->cancel();
493 exec->surfAction_->unref();
494 exec->surfAction_ = nullptr;
496 } else if (comm != nullptr) {
497 process->comms.remove(process->waiting_synchro);
499 // Remove first occurrence of &process->simcall:
500 auto i = boost::range::find(process->waiting_synchro->simcalls, &process->simcall);
501 if (i != process->waiting_synchro->simcalls.end())
502 process->waiting_synchro->simcalls.remove(&process->simcall);
503 } else if (sleep != nullptr) {
504 SIMIX_process_sleep_destroy(process->waiting_synchro);
506 } else if (raw != nullptr) {
507 SIMIX_synchro_stop_waiting(process, &process->simcall);
509 } else if (io != nullptr) {
510 SIMIX_io_destroy(process->waiting_synchro);
512 xbt_die("Unknown type of activity");
515 process->waiting_synchro = nullptr;
517 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), process) ==
518 end(simix_global->process_to_run) &&
520 XBT_DEBUG("Inserting %s in the to_run list", process->name.c_str());
521 simix_global->process_to_run.push_back(process);
525 /** @brief Ask another process to raise the given exception
527 * @param process The process that should raise that exception
528 * @param cat category of exception
529 * @param value value associated to the exception
530 * @param msg string information associated to the exception
532 void SIMIX_process_throw(smx_actor_t process, xbt_errcat_t cat, int value, const char *msg) {
533 SMX_EXCEPTION(process, cat, value, msg);
535 if (process->suspended)
538 /* cancel the blocking synchro if any */
539 if (process->waiting_synchro) {
541 simgrid::kernel::activity::ExecImplPtr exec =
542 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(process->waiting_synchro);
543 if (exec != nullptr && exec->surfAction_)
544 exec->surfAction_->cancel();
546 simgrid::kernel::activity::CommImplPtr comm =
547 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(process->waiting_synchro);
548 if (comm != nullptr) {
549 process->comms.remove(comm);
553 simgrid::kernel::activity::SleepImplPtr sleep =
554 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(process->waiting_synchro);
555 if (sleep != nullptr) {
556 SIMIX_process_sleep_destroy(process->waiting_synchro);
557 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), process) ==
558 end(simix_global->process_to_run) &&
559 process != SIMIX_process_self()) {
560 XBT_DEBUG("Inserting %s in the to_run list", process->name.c_str());
561 simix_global->process_to_run.push_back(process);
565 simgrid::kernel::activity::RawImplPtr raw =
566 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(process->waiting_synchro);
567 if (raw != nullptr) {
568 SIMIX_synchro_stop_waiting(process, &process->simcall);
571 simgrid::kernel::activity::IoImplPtr io =
572 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(process->waiting_synchro);
574 SIMIX_io_destroy(process->waiting_synchro);
577 process->waiting_synchro = nullptr;
581 void simcall_HANDLER_process_killall(smx_simcall_t simcall)
583 SIMIX_process_killall(simcall->issuer);
586 * \brief Kills all running processes.
587 * \param issuer this one will not be killed
589 void SIMIX_process_killall(smx_actor_t issuer)
591 for (auto const& kv : simix_global->process_list)
592 if (kv.second != issuer)
593 SIMIX_process_kill(kv.second, issuer);
596 void SIMIX_process_change_host(smx_actor_t actor, sg_host_t dest)
598 xbt_assert((actor != nullptr), "Invalid parameters");
599 simgrid::xbt::intrusive_erase(actor->host->extension<simgrid::simix::Host>()->process_list, *actor);
601 dest->extension<simgrid::simix::Host>()->process_list.push_back(*actor);
604 void simcall_HANDLER_process_suspend(smx_simcall_t simcall, smx_actor_t process)
606 smx_activity_t sync_suspend = process->suspend(simcall->issuer);
608 if (process != simcall->issuer) {
609 SIMIX_simcall_answer(simcall);
611 sync_suspend->simcalls.push_back(simcall);
612 process->waiting_synchro = sync_suspend;
613 process->waiting_synchro->suspend();
615 /* If we are suspending ourselves, then just do not finish the simcall now */
618 int SIMIX_process_get_maxpid() {
619 return simix_process_maxpid;
622 int SIMIX_process_count()
624 return simix_global->process_list.size();
627 void* SIMIX_process_self_get_data()
629 smx_actor_t self = SIMIX_process_self();
634 return self->getUserData();
637 void SIMIX_process_self_set_data(void *data)
639 SIMIX_process_self()->setUserData(data);
643 /* needs to be public and without simcall because it is called
644 by exceptions and logging events */
645 const char* SIMIX_process_self_get_name() {
647 smx_actor_t process = SIMIX_process_self();
648 if (process == nullptr || process == simix_global->maestro_process)
651 return process->name.c_str();
654 void simcall_HANDLER_process_join(smx_simcall_t simcall, smx_actor_t process, double timeout)
656 if (process->finished) {
657 // The joined process is already finished, just wake up the issuer process right away
658 simcall_process_sleep__set__result(simcall, SIMIX_DONE);
659 SIMIX_simcall_answer(simcall);
662 smx_activity_t sync = SIMIX_process_join(simcall->issuer, process, timeout);
663 sync->simcalls.push_back(simcall);
664 simcall->issuer->waiting_synchro = sync;
667 smx_activity_t SIMIX_process_join(smx_actor_t issuer, smx_actor_t process, double timeout)
669 smx_activity_t res = issuer->sleep(timeout);
670 intrusive_ptr_add_ref(res.get());
671 SIMIX_process_on_exit(process,
672 [](void*, void* arg) {
673 auto sleep = static_cast<simgrid::kernel::activity::SleepImpl*>(arg);
674 if (sleep->surf_sleep)
675 sleep->surf_sleep->finish(simgrid::kernel::resource::Action::State::done);
676 intrusive_ptr_release(sleep);
683 void simcall_HANDLER_process_sleep(smx_simcall_t simcall, double duration)
685 if (MC_is_active() || MC_record_replay_is_active()) {
686 MC_process_clock_add(simcall->issuer, duration);
687 simcall_process_sleep__set__result(simcall, SIMIX_DONE);
688 SIMIX_simcall_answer(simcall);
691 smx_activity_t sync = simcall->issuer->sleep(duration);
692 sync->simcalls.push_back(simcall);
693 simcall->issuer->waiting_synchro = sync;
696 void SIMIX_process_sleep_destroy(smx_activity_t synchro)
698 XBT_DEBUG("Destroy sleep synchro %p", synchro.get());
699 simgrid::kernel::activity::SleepImplPtr sleep =
700 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(synchro);
702 if (sleep->surf_sleep) {
703 sleep->surf_sleep->unref();
704 sleep->surf_sleep = nullptr;
709 * \brief Calling this function makes the process to yield.
711 * Only the current process can call this function, giving back the control to maestro.
713 * \param self the current process
715 void SIMIX_process_yield(smx_actor_t self)
717 XBT_DEBUG("Yield actor '%s'", self->getCname());
719 /* Go into sleep and return control to maestro */
720 self->context->suspend();
722 /* Ok, maestro returned control to us */
723 XBT_DEBUG("Control returned to me: '%s'", self->name.c_str());
725 if (self->context->iwannadie){
726 XBT_DEBUG("I wanna die!");
727 self->finished = true;
728 /* execute the on_exit functions */
729 SIMIX_process_on_exit_runall(self);
730 /* Add the process to the list of process to restart, only if the host is down */
731 if (self->auto_restart && self->host->isOff()) {
732 SIMIX_host_add_auto_restart_process(self->host, self->getCname(), self->code, self->userdata,
733 SIMIX_timer_get_date(self->kill_timer), self->getProperties(),
736 XBT_DEBUG("Process %s@%s is dead", self->getCname(), self->host->getCname());
737 self->context->stop();
740 if (self->suspended) {
741 XBT_DEBUG("Hey! I'm suspended.");
742 xbt_assert(self->exception != nullptr, "Gasp! This exception may be lost by subsequent calls.");
747 if (self->exception != nullptr) {
748 XBT_DEBUG("Wait, maestro left me an exception");
749 std::exception_ptr exception = std::move(self->exception);
750 self->exception = nullptr;
751 std::rethrow_exception(std::move(exception));
754 if (SMPI_switch_data_segment && not self->finished) {
755 SMPI_switch_data_segment(self->iface());
759 /** @brief Returns the list of processes to run. */
760 const std::vector<smx_actor_t>& simgrid::simix::process_get_runnable()
762 return simix_global->process_to_run;
765 /** @brief Returns the process from PID. */
766 smx_actor_t SIMIX_process_from_PID(aid_t PID)
768 auto process = simix_global->process_list.find(PID);
769 return process == simix_global->process_list.end() ? nullptr : process->second;
772 void SIMIX_process_on_exit_runall(smx_actor_t process) {
773 simgrid::s4u::Actor::onDestruction(process->iface());
774 smx_process_exit_status_t exit_status = (process->context->iwannadie) ? SMX_EXIT_FAILURE : SMX_EXIT_SUCCESS;
775 while (not process->on_exit.empty()) {
776 s_smx_process_exit_fun_t exit_fun = process->on_exit.back();
777 process->on_exit.pop_back();
778 (exit_fun.fun)((void*)exit_status, exit_fun.arg);
782 void SIMIX_process_on_exit(smx_actor_t process, int_f_pvoid_pvoid_t fun, void *data) {
783 xbt_assert(process, "current process not found: are you in maestro context ?");
785 s_smx_process_exit_fun_t exit_fun = {fun, data};
787 process->on_exit.push_back(exit_fun);
791 * \brief Sets the auto-restart status of the process.
792 * If set to 1, the process will be automatically restarted when its host comes back.
794 void SIMIX_process_auto_restart_set(smx_actor_t process, int auto_restart) {
795 process->auto_restart = auto_restart;
798 /** @brief Restart a process, starting it again from the beginning. */
800 * \ingroup simix_process_management
801 * \brief Creates and runs a new SIMIX process.
803 * The structure and the corresponding thread are created and put in the list of ready processes.
805 * \param name a name for the process. It is for user-level information and can be nullptr.
806 * \param code the main function of the process
807 * \param data a pointer to any data one may want to attach to the new object. It is for user-level information and can
809 * It can be retrieved with the function \ref simcall_process_get_data.
810 * \param host where the new agent is executed.
811 * \param kill_time time when the process is killed
812 * \param argc first argument passed to \a code
813 * \param argv second argument passed to \a code
814 * \param properties the properties of the process
815 * \param auto_restart either it is autorestarting or not.
817 smx_actor_t simcall_process_create(const char* name, xbt_main_func_t code, void* data, sg_host_t host, int argc,
818 char** argv, std::map<std::string, std::string>* properties)
822 auto wrapped_code = simgrid::xbt::wrapMain(code, argc, argv);
823 for (int i = 0; i != argc; ++i)
826 smx_actor_t res = simcall_process_create(name, std::move(wrapped_code), data, host, properties);
830 smx_actor_t simcall_process_create(const char* name, std::function<void()> code, void* data, sg_host_t host,
831 std::map<std::string, std::string>* properties)
835 smx_actor_t self = SIMIX_process_self();
836 return simgrid::simix::kernelImmediate([name, code, data, host, properties, self] {
837 return SIMIX_process_create(name, std::move(code), data, host, properties, self);