1 /* Copyright (c) 2007-2019. 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. */
7 #include "simgrid/Exception.hpp"
8 #include "smx_private.hpp"
9 #include "src/kernel/activity/CommImpl.hpp"
10 #include "src/kernel/activity/ExecImpl.hpp"
11 #include "src/kernel/activity/IoImpl.hpp"
12 #include "src/kernel/activity/SleepImpl.hpp"
13 #include "src/kernel/activity/SynchroRaw.hpp"
14 #include "src/mc/mc_replay.hpp"
15 #include "src/mc/remote/Client.hpp"
16 #include "src/simix/smx_host_private.hpp"
17 #include "src/simix/smx_io_private.hpp"
18 #include "src/simix/smx_synchro_private.hpp"
19 #include "src/surf/HostImpl.hpp"
20 #include "src/surf/cpu_interface.hpp"
22 #include <boost/range/algorithm.hpp>
24 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_process, simix, "Logging specific to SIMIX (process)");
26 static unsigned long simix_process_maxpid = 0;
29 * @brief Returns the current agent.
31 * This functions returns the currently running SIMIX process.
33 * @return The SIMIX process
35 smx_actor_t SIMIX_process_self()
37 smx_context_t self_context = simgrid::kernel::context::Context::self();
39 return (self_context != nullptr) ? self_context->get_actor() : nullptr;
43 * @brief Returns whether a process has pending asynchronous communications.
44 * @return true if there are asynchronous communications in this process
46 int SIMIX_process_has_pending_comms(smx_actor_t process) {
48 return process->comms.size() > 0;
52 * @brief Moves a process to the list of processes to destroy.
54 void SIMIX_process_cleanup(smx_actor_t process)
56 XBT_DEBUG("Cleanup process %s (%p), waiting synchro %p", process->get_cname(), process,
57 process->waiting_synchro.get());
59 /* Unregister from the kill timer if any */
60 if (process->kill_timer != nullptr) {
61 SIMIX_timer_remove(process->kill_timer);
62 process->kill_timer = nullptr;
65 simix_global->mutex.lock();
67 simix_global->process_list.erase(process->pid_);
68 if (process->host_ && process->host_process_list_hook.is_linked())
69 simgrid::xbt::intrusive_erase(process->host_->pimpl_->process_list_, *process);
70 if (not process->smx_destroy_list_hook.is_linked()) {
72 xbt_dynar_push_as(simix_global->dead_actors_vector, smx_actor_t, process);
74 simix_global->process_to_destroy.push_back(*process);
76 process->context_->iwannadie = false;
78 simix_global->mutex.unlock();
84 * Should be called some time to time to free the memory allocated for processes that have finished (or killed).
86 void SIMIX_process_empty_trash()
88 while (not simix_global->process_to_destroy.empty()) {
89 smx_actor_t process = &simix_global->process_to_destroy.front();
90 simix_global->process_to_destroy.pop_front();
91 XBT_DEBUG("Getting rid of %p",process);
92 intrusive_ptr_release(process);
95 xbt_dynar_reset(simix_global->dead_actors_vector);
104 ActorImpl::ActorImpl(simgrid::xbt::string name, simgrid::s4u::Host* host) : name_(name), host_(host), piface_(this)
106 pid_ = simix_process_maxpid++;
107 simcall.issuer = this;
110 ActorImpl::~ActorImpl()
112 delete this->context_;
115 static void dying_daemon(int /*exit_status*/, void* data)
117 std::vector<ActorImpl*>* vect = &simix_global->daemons;
119 auto it = std::find(vect->begin(), vect->end(), static_cast<ActorImpl*>(data));
120 xbt_assert(it != vect->end(), "The dying daemon is not a daemon after all. Please report that bug.");
122 /* Don't move the whole content since we don't really care about the order */
123 std::swap(*it, vect->back());
127 /** This process will be terminated automatically when the last non-daemon process finishes */
128 void ActorImpl::daemonize()
132 simix_global->daemons.push_back(this);
133 SIMIX_process_on_exit(this, dying_daemon, this);
137 simgrid::s4u::Actor* ActorImpl::restart()
139 XBT_DEBUG("Restarting process %s on %s", get_cname(), host_->get_cname());
141 // retrieve the arguments of the old process
142 simgrid::kernel::actor::ProcessArg arg = ProcessArg(host_, this);
144 // kill the old process
145 SIMIX_process_kill(this, (this == simix_global->maestro_process) ? this : SIMIX_process_self());
147 // start the new process
149 SIMIX_process_create(arg.name, std::move(arg.code), arg.data, arg.host, arg.properties.get(), nullptr);
150 simcall_process_set_kill_time(actor, arg.kill_time);
151 actor->set_auto_restart(arg.auto_restart);
153 return actor->ciface();
156 smx_activity_t ActorImpl::suspend(ActorImpl* issuer)
159 XBT_DEBUG("Actor '%s' is already suspended", get_cname());
165 /* If we are suspending another actor that is waiting on a sync, suspend its synchronization. */
166 if (this != issuer) {
168 waiting_synchro->suspend();
169 /* If the other actor is not waiting, its suspension is delayed to when the actor is rescheduled. */
173 return SIMIX_execution_start("suspend", "", 0.0, 1.0, 0.0, this->host_);
177 void ActorImpl::resume()
179 XBT_IN("process = %p", this);
181 if (context_->iwannadie) {
182 XBT_VERB("Ignoring request to suspend an actor that is currently dying.");
190 /* resume the synchronization that was blocking the resumed actor. */
192 waiting_synchro->resume();
197 smx_activity_t ActorImpl::sleep(double duration)
200 throw_exception(std::make_exception_ptr(simgrid::HostFailureException(
201 XBT_THROW_POINT, std::string("Host ") + std::string(host_->get_cname()) + " failed, you cannot sleep there.")));
203 simgrid::kernel::activity::SleepImpl* synchro = new simgrid::kernel::activity::SleepImpl();
204 synchro->host = host_;
205 synchro->surf_sleep = host_->pimpl_cpu->sleep(duration);
206 synchro->surf_sleep->set_data(synchro);
207 XBT_DEBUG("Create sleep synchronization %p", synchro);
212 void ActorImpl::throw_exception(std::exception_ptr e)
219 /* cancel the blocking synchro if any */
220 if (waiting_synchro) {
222 simgrid::kernel::activity::ExecImplPtr exec =
223 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(waiting_synchro);
224 if (exec != nullptr && exec->surf_action_)
225 exec->surf_action_->cancel();
227 simgrid::kernel::activity::CommImplPtr comm =
228 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(waiting_synchro);
229 if (comm != nullptr) {
234 simgrid::kernel::activity::SleepImplPtr sleep =
235 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(waiting_synchro);
236 if (sleep != nullptr) {
237 SIMIX_process_sleep_destroy(waiting_synchro);
238 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), this) ==
239 end(simix_global->process_to_run) &&
240 this != SIMIX_process_self()) {
241 XBT_DEBUG("Inserting %s in the to_run list", get_cname());
242 simix_global->process_to_run.push_back(this);
246 simgrid::kernel::activity::RawImplPtr raw =
247 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(waiting_synchro);
248 if (raw != nullptr) {
249 SIMIX_synchro_stop_waiting(this, &simcall);
252 simgrid::kernel::activity::IoImplPtr io =
253 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(waiting_synchro);
258 waiting_synchro = nullptr;
261 void create_maestro(simgrid::simix::ActorCode code)
263 /* Create maestro process and initialize it */
264 smx_actor_t maestro = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(""), /*host*/ nullptr);
267 maestro->context_ = SIMIX_context_new(simgrid::simix::ActorCode(), nullptr, maestro);
269 maestro->context_ = simix_global->context_factory->create_maestro(code, maestro);
272 maestro->simcall.issuer = maestro;
273 simix_global->maestro_process = maestro;
281 * @brief Internal function to create a process.
283 * This function actually creates the process.
284 * It may be called when a SIMCALL_PROCESS_CREATE simcall occurs,
285 * or directly for SIMIX internal purposes. The sure thing is that it's called from maestro context.
287 * @return the process created
289 smx_actor_t SIMIX_process_create(std::string name, simgrid::simix::ActorCode code, void* data, simgrid::s4u::Host* host,
290 std::unordered_map<std::string, std::string>* properties, smx_actor_t parent_process)
293 XBT_DEBUG("Start actor %s@'%s'", name.c_str(), host->get_cname());
295 if (host->is_off()) {
296 XBT_WARN("Cannot launch process '%s' on failed host '%s'", name.c_str(), host->get_cname());
300 smx_actor_t process = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(name), host);
302 xbt_assert(code && host != nullptr, "Invalid parameters");
304 process->set_user_data(data);
305 process->code = code;
307 if (parent_process != nullptr)
308 process->ppid_ = parent_process->pid_;
310 XBT_VERB("Create context %s", process->get_cname());
311 process->context_ = SIMIX_context_new(std::move(code), &SIMIX_process_cleanup, process);
314 if (properties != nullptr)
315 for (auto const& kv : *properties)
316 process->set_property(kv.first, kv.second);
318 /* Add the process to its host's process list */
319 host->pimpl_->process_list_.push_back(*process);
321 XBT_DEBUG("Start context '%s'", process->get_cname());
323 /* Now insert it in the global process list and in the process to run list */
324 simix_global->process_list[process->pid_] = process;
325 XBT_DEBUG("Inserting %s(%s) in the to_run list", process->get_cname(), host->get_cname());
326 simix_global->process_to_run.push_back(process);
327 intrusive_ptr_add_ref(process);
329 /* The on_creation() signal must be delayed until there, where the pid and everything is set */
330 simgrid::s4u::Actor::on_creation(process->iface());
335 smx_actor_t SIMIX_process_attach(const char* name, void* data, const char* hostname,
336 std::unordered_map<std::string, std::string>* properties, smx_actor_t parent_process)
338 // This is mostly a copy/paste from SIMIX_process_new(),
339 // it'd be nice to share some code between those two functions.
341 sg_host_t host = sg_host_by_name(hostname);
342 XBT_DEBUG("Attach process %s on host '%s'", name, hostname);
344 if (host->is_off()) {
345 XBT_WARN("Cannot launch process '%s' on failed host '%s'", name, hostname);
349 smx_actor_t actor = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(name), host);
351 actor->set_user_data(data);
352 actor->code = nullptr;
354 if (parent_process != nullptr)
355 actor->ppid_ = parent_process->pid_;
357 XBT_VERB("Create context %s", actor->get_cname());
358 xbt_assert(simix_global != nullptr, "simix is not initialized, please call MSG_init first");
359 actor->context_ = simix_global->context_factory->attach(&SIMIX_process_cleanup, actor);
362 if (properties != nullptr)
363 for (auto const& kv : *properties)
364 actor->set_property(kv.first, kv.second);
366 /* Add the process to it's host process list */
367 host->pimpl_->process_list_.push_back(*actor);
369 /* Now insert it in the global process list and in the process to run list */
370 simix_global->process_list[actor->pid_] = actor;
371 XBT_DEBUG("Inserting %s(%s) in the to_run list", actor->get_cname(), host->get_cname());
372 simix_global->process_to_run.push_back(actor);
373 intrusive_ptr_add_ref(actor);
375 auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(actor->context_);
376 xbt_assert(nullptr != context, "Not a suitable context");
377 context->attach_start();
379 /* The on_creation() signal must be delayed until there, where the pid and everything is set */
380 simgrid::s4u::ActorPtr tmp = actor->iface(); // Passing this directly to on_creation will lead to crashes
381 simgrid::s4u::Actor::on_creation(tmp);
386 void SIMIX_process_detach()
388 auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(simgrid::kernel::context::Context::self());
389 if (context == nullptr)
390 xbt_die("Not a suitable context");
392 SIMIX_process_cleanup(context->get_actor());
393 context->attach_stop();
397 * @brief Executes the processes from simix_global->process_to_run.
399 * The processes of simix_global->process_to_run are run (in parallel if
400 * possible). On exit, simix_global->process_to_run is empty, and
401 * simix_global->process_that_ran contains the list of processes that just ran.
402 * The two lists are swapped so, be careful when using them before and after a
403 * call to this function.
405 void SIMIX_process_runall()
407 SIMIX_context_runall();
409 simix_global->process_to_run.swap(simix_global->process_that_ran);
410 simix_global->process_to_run.clear();
414 * @brief Internal function to kill a SIMIX process.
416 * This function may be called when a SIMCALL_PROCESS_KILL simcall occurs,
417 * or directly for SIMIX internal purposes.
419 * @param actor poor victim
420 * @param issuer the actor which has sent the PROCESS_KILL. Important to not schedule twice the same actor.
422 void SIMIX_process_kill(smx_actor_t actor, smx_actor_t issuer)
425 if (actor->finished_) {
426 XBT_DEBUG("Ignoring request to kill process %s@%s that is already dead", actor->get_cname(),
427 actor->host_->get_cname());
431 XBT_DEBUG("Actor '%s'@%s is killing actor '%s'@%s", issuer == nullptr ? "(null)" : issuer->get_cname(),
432 (issuer == nullptr || issuer->host_ == nullptr ? "(null)" : issuer->host_->get_cname()), actor->get_cname(),
433 actor->host_->get_cname());
435 actor->context_->iwannadie = true;
436 actor->blocked_ = false;
437 actor->suspended_ = false;
438 actor->exception = nullptr;
440 // Forcefully kill the actor if its host is turned off. Not an HostFailureException because you should not survive that
441 if (actor->host_->is_off())
442 actor->throw_exception(std::make_exception_ptr(simgrid::kernel::context::StopRequest("host failed")));
444 /* destroy the blocking synchro if any */
445 if (actor->waiting_synchro != nullptr) {
447 simgrid::kernel::activity::ExecImplPtr exec =
448 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(actor->waiting_synchro);
449 simgrid::kernel::activity::CommImplPtr comm =
450 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(actor->waiting_synchro);
451 simgrid::kernel::activity::SleepImplPtr sleep =
452 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(actor->waiting_synchro);
453 simgrid::kernel::activity::RawImplPtr raw =
454 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(actor->waiting_synchro);
455 simgrid::kernel::activity::IoImplPtr io =
456 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(actor->waiting_synchro);
458 if (exec != nullptr) {
459 if (exec->surf_action_) {
460 exec->surf_action_->cancel();
461 exec->surf_action_->unref();
462 exec->surf_action_ = nullptr;
464 } else if (comm != nullptr) {
465 actor->comms.remove(actor->waiting_synchro);
467 // Remove first occurrence of &process->simcall:
468 auto i = boost::range::find(actor->waiting_synchro->simcalls_, &actor->simcall);
469 if (i != actor->waiting_synchro->simcalls_.end())
470 actor->waiting_synchro->simcalls_.remove(&actor->simcall);
471 } else if (sleep != nullptr) {
472 if (sleep->surf_sleep)
473 sleep->surf_sleep->cancel();
475 } else if (raw != nullptr) {
476 SIMIX_synchro_stop_waiting(actor, &actor->simcall);
478 } else if (io != nullptr) {
481 simgrid::kernel::activity::ActivityImplPtr activity = actor->waiting_synchro;
482 xbt_die("Activity %s is of unknown type %s", activity->name_.c_str(),
483 simgrid::xbt::demangle(typeid(activity).name()).get());
486 actor->waiting_synchro = nullptr;
488 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), actor) ==
489 end(simix_global->process_to_run) &&
491 XBT_DEBUG("Inserting %s in the to_run list", actor->get_cname());
492 simix_global->process_to_run.push_back(actor);
496 /** @deprecated When this function gets removed, also remove the xbt_ex class, that is only there to help users to
498 void SIMIX_process_throw(smx_actor_t actor, xbt_errcat_t cat, int value, const char* msg)
500 SMX_EXCEPTION(actor, cat, value, msg);
502 if (actor->suspended_)
505 /* cancel the blocking synchro if any */
506 if (actor->waiting_synchro) {
508 simgrid::kernel::activity::ExecImplPtr exec =
509 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(actor->waiting_synchro);
510 if (exec != nullptr && exec->surf_action_)
511 exec->surf_action_->cancel();
513 simgrid::kernel::activity::CommImplPtr comm =
514 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(actor->waiting_synchro);
515 if (comm != nullptr) {
516 actor->comms.remove(comm);
520 simgrid::kernel::activity::SleepImplPtr sleep =
521 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(actor->waiting_synchro);
522 if (sleep != nullptr) {
523 SIMIX_process_sleep_destroy(actor->waiting_synchro);
524 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), actor) ==
525 end(simix_global->process_to_run) &&
526 actor != SIMIX_process_self()) {
527 XBT_DEBUG("Inserting %s in the to_run list", actor->get_cname());
528 simix_global->process_to_run.push_back(actor);
532 simgrid::kernel::activity::RawImplPtr raw =
533 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(actor->waiting_synchro);
534 if (raw != nullptr) {
535 SIMIX_synchro_stop_waiting(actor, &actor->simcall);
538 simgrid::kernel::activity::IoImplPtr io =
539 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(actor->waiting_synchro);
544 actor->waiting_synchro = nullptr;
548 * @brief Kills all running processes.
549 * @param issuer this one will not be killed
551 void SIMIX_process_killall(smx_actor_t issuer)
553 for (auto const& kv : simix_global->process_list)
554 if (kv.second != issuer)
555 SIMIX_process_kill(kv.second, issuer);
558 void SIMIX_process_change_host(smx_actor_t actor, sg_host_t dest)
560 xbt_assert((actor != nullptr), "Invalid parameters");
561 simgrid::xbt::intrusive_erase(actor->host_->pimpl_->process_list_, *actor);
563 dest->pimpl_->process_list_.push_back(*actor);
566 void simcall_HANDLER_process_suspend(smx_simcall_t simcall, smx_actor_t actor)
568 smx_activity_t sync_suspend = actor->suspend(simcall->issuer);
570 if (actor != simcall->issuer) {
571 SIMIX_simcall_answer(simcall);
573 sync_suspend->simcalls_.push_back(simcall);
574 actor->waiting_synchro = sync_suspend;
575 actor->waiting_synchro->suspend();
577 /* If we are suspending ourselves, then just do not finish the simcall now */
580 int SIMIX_process_get_maxpid() {
581 return simix_process_maxpid;
584 int SIMIX_process_count()
586 return simix_global->process_list.size();
589 void* SIMIX_process_self_get_data()
591 smx_actor_t self = SIMIX_process_self();
593 if (self == nullptr) {
596 return self->get_user_data();
599 void SIMIX_process_self_set_data(void *data)
601 SIMIX_process_self()->set_user_data(data);
605 /* needs to be public and without simcall because it is called
606 by exceptions and logging events */
607 const char* SIMIX_process_self_get_name() {
609 smx_actor_t process = SIMIX_process_self();
610 if (process == nullptr || process == simix_global->maestro_process)
613 return process->get_cname();
616 void simcall_HANDLER_process_join(smx_simcall_t simcall, smx_actor_t process, double timeout)
618 if (process->finished_) {
619 // The joined process is already finished, just wake up the issuer process right away
620 simcall_process_sleep__set__result(simcall, SIMIX_DONE);
621 SIMIX_simcall_answer(simcall);
624 smx_activity_t sync = SIMIX_process_join(simcall->issuer, process, timeout);
625 sync->simcalls_.push_back(simcall);
626 simcall->issuer->waiting_synchro = sync;
629 smx_activity_t SIMIX_process_join(smx_actor_t issuer, smx_actor_t process, double timeout)
631 smx_activity_t res = issuer->sleep(timeout);
632 intrusive_ptr_add_ref(res.get());
633 SIMIX_process_on_exit(process,
635 auto sleep = static_cast<simgrid::kernel::activity::SleepImpl*>(arg);
636 if (sleep->surf_sleep)
637 sleep->surf_sleep->finish(simgrid::kernel::resource::Action::State::FINISHED);
638 intrusive_ptr_release(sleep);
644 void simcall_HANDLER_process_sleep(smx_simcall_t simcall, double duration)
646 if (MC_is_active() || MC_record_replay_is_active()) {
647 MC_process_clock_add(simcall->issuer, duration);
648 simcall_process_sleep__set__result(simcall, SIMIX_DONE);
649 SIMIX_simcall_answer(simcall);
652 smx_activity_t sync = simcall->issuer->sleep(duration);
653 sync->simcalls_.push_back(simcall);
654 simcall->issuer->waiting_synchro = sync;
657 void SIMIX_process_sleep_destroy(smx_activity_t synchro)
659 XBT_DEBUG("Destroy sleep synchro %p", synchro.get());
660 simgrid::kernel::activity::SleepImplPtr sleep =
661 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(synchro);
663 if (sleep->surf_sleep) {
664 sleep->surf_sleep->unref();
665 sleep->surf_sleep = nullptr;
670 * @brief Calling this function makes the process to yield.
672 * Only the current process can call this function, giving back the control to maestro.
674 * @param self the current process
676 void SIMIX_process_yield(smx_actor_t self)
678 XBT_DEBUG("Yield actor '%s'", self->get_cname());
680 /* Go into sleep and return control to maestro */
681 self->context_->suspend();
683 /* Ok, maestro returned control to us */
684 XBT_DEBUG("Control returned to me: '%s'", self->get_cname());
686 if (self->context_->iwannadie) {
688 XBT_DEBUG("Process %s@%s is dead", self->get_cname(), self->host_->get_cname());
689 // throw simgrid::kernel::context::StopRequest(); Does not seem to properly kill the actor
690 self->context_->stop();
694 if (self->suspended_) {
695 XBT_DEBUG("Hey! I'm suspended.");
696 xbt_assert(self->exception != nullptr, "Gasp! This exception may be lost by subsequent calls.");
697 self->suspended_ = false;
701 if (self->exception != nullptr) {
702 XBT_DEBUG("Wait, maestro left me an exception");
703 std::exception_ptr exception = std::move(self->exception);
704 self->exception = nullptr;
705 std::rethrow_exception(std::move(exception));
708 if (SMPI_switch_data_segment && not self->finished_) {
709 SMPI_switch_data_segment(self->iface());
713 /** @brief Returns the list of processes to run. */
714 const std::vector<smx_actor_t>& simgrid::simix::process_get_runnable()
716 return simix_global->process_to_run;
719 /** @brief Returns the process from PID. */
720 smx_actor_t SIMIX_process_from_PID(aid_t PID)
722 auto actor = simix_global->process_list.find(PID);
723 return actor == simix_global->process_list.end() ? nullptr : actor->second;
726 void SIMIX_process_on_exit_runall(smx_actor_t actor)
728 simgrid::s4u::Actor::on_destruction(actor->iface());
729 smx_process_exit_status_t exit_status = (actor->context_->iwannadie) ? SMX_EXIT_FAILURE : SMX_EXIT_SUCCESS;
730 while (not actor->on_exit.empty()) {
731 s_smx_process_exit_fun_t exit_fun = actor->on_exit.back();
732 actor->on_exit.pop_back();
733 (exit_fun.fun)(exit_status, exit_fun.arg);
737 void SIMIX_process_on_exit(smx_actor_t actor, int_f_pvoid_pvoid_t fun, void* data)
739 SIMIX_process_on_exit(actor, [fun](int a, void* b) { fun((void*)(intptr_t)a, b); }, data);
742 void SIMIX_process_on_exit(smx_actor_t actor, std::function<void(int, void*)> fun, void* data)
744 xbt_assert(actor, "current process not found: are you in maestro context ?");
746 actor->on_exit.emplace_back(s_smx_process_exit_fun_t{fun, data});
749 /** @brief Restart a process, starting it again from the beginning. */
751 * @ingroup simix_process_management
752 * @brief Creates and runs a new SIMIX process.
754 * The structure and the corresponding thread are created and put in the list of ready processes.
756 * @param name a name for the process. It is for user-level information and can be nullptr.
757 * @param code the main function of the process
758 * @param data a pointer to any data one may want to attach to the new object. It is for user-level information and can
760 * It can be retrieved with the method ActorImpl::getUserData().
761 * @param host where the new agent is executed.
762 * @param properties the properties of the process
764 smx_actor_t simcall_process_create(std::string name, simgrid::simix::ActorCode code, void* data, sg_host_t host,
765 std::unordered_map<std::string, std::string>* properties)
767 smx_actor_t self = SIMIX_process_self();
768 return simgrid::simix::simcall([name, code, data, host, properties, self] {
769 return SIMIX_process_create(name, std::move(code), data, host, properties, self);