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 "simgrid/s4u/Actor.hpp"
9 #include "simgrid/s4u/Exec.hpp"
10 #include "smx_private.hpp"
11 #include "src/kernel/activity/CommImpl.hpp"
12 #include "src/kernel/activity/ExecImpl.hpp"
13 #include "src/kernel/activity/IoImpl.hpp"
14 #include "src/kernel/activity/SleepImpl.hpp"
15 #include "src/kernel/activity/SynchroRaw.hpp"
16 #include "src/mc/mc_replay.hpp"
17 #include "src/mc/remote/Client.hpp"
18 #include "src/simix/smx_host_private.hpp"
19 #include "src/simix/smx_io_private.hpp"
20 #include "src/simix/smx_synchro_private.hpp"
21 #include "src/surf/HostImpl.hpp"
22 #include "src/surf/cpu_interface.hpp"
24 #include <boost/range/algorithm.hpp>
26 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_process, simix, "Logging specific to SIMIX (process)");
28 static unsigned long simix_process_maxpid = 0;
31 * @brief Returns the current agent.
33 * This functions returns the currently running SIMIX process.
35 * @return The SIMIX process
37 smx_actor_t SIMIX_process_self()
39 smx_context_t self_context = simgrid::kernel::context::Context::self();
41 return (self_context != nullptr) ? self_context->get_actor() : nullptr;
45 * @brief Returns whether a process has pending asynchronous communications.
46 * @return true if there are asynchronous communications in this process
48 int SIMIX_process_has_pending_comms(smx_actor_t process) {
50 return process->comms.size() > 0;
54 * @brief Moves a process to the list of processes to destroy.
56 void SIMIX_process_cleanup(smx_actor_t process)
58 XBT_DEBUG("Cleanup process %s (%p), waiting synchro %p", process->get_cname(), process,
59 process->waiting_synchro.get());
61 simix_global->mutex.lock();
63 simix_global->process_list.erase(process->pid_);
64 if (process->host_ && process->host_process_list_hook.is_linked())
65 simgrid::xbt::intrusive_erase(process->host_->pimpl_->process_list_, *process);
66 if (not process->smx_destroy_list_hook.is_linked()) {
68 xbt_dynar_push_as(simix_global->dead_actors_vector, smx_actor_t, process);
70 simix_global->process_to_destroy.push_back(*process);
72 process->context_->iwannadie = false;
74 simix_global->mutex.unlock();
80 * Should be called some time to time to free the memory allocated for processes that have finished (or killed).
82 void SIMIX_process_empty_trash()
84 while (not simix_global->process_to_destroy.empty()) {
85 smx_actor_t process = &simix_global->process_to_destroy.front();
86 simix_global->process_to_destroy.pop_front();
87 XBT_DEBUG("Getting rid of %p",process);
88 intrusive_ptr_release(process);
91 xbt_dynar_reset(simix_global->dead_actors_vector);
99 ActorImpl::ActorImpl(simgrid::xbt::string name, simgrid::s4u::Host* host) : name_(name), host_(host), piface_(this)
101 pid_ = simix_process_maxpid++;
102 simcall.issuer = this;
105 ActorImpl::~ActorImpl()
107 delete this->context_;
110 void ActorImpl::set_kill_time(double kill_time)
112 if (kill_time <= SIMIX_get_clock())
114 XBT_DEBUG("Set kill time %f for process %s@%s", kill_time, get_cname(), host_->get_cname());
115 kill_timer = SIMIX_timer_set(kill_time, [this] {
116 SIMIX_process_kill(this, nullptr);
117 kill_timer = nullptr;
121 static void dying_daemon(int /*exit_status*/, void* data)
123 std::vector<ActorImpl*>* vect = &simix_global->daemons;
125 auto it = std::find(vect->begin(), vect->end(), static_cast<ActorImpl*>(data));
126 xbt_assert(it != vect->end(), "The dying daemon is not a daemon after all. Please report that bug.");
128 /* Don't move the whole content since we don't really care about the order */
129 std::swap(*it, vect->back());
133 /** This process will be terminated automatically when the last non-daemon process finishes */
134 void ActorImpl::daemonize()
138 simix_global->daemons.push_back(this);
139 SIMIX_process_on_exit(this, dying_daemon, this);
143 simgrid::s4u::Actor* ActorImpl::restart()
145 XBT_DEBUG("Restarting process %s on %s", get_cname(), host_->get_cname());
147 // retrieve the arguments of the old process
148 simgrid::kernel::actor::ProcessArg arg = ProcessArg(host_, this);
150 // kill the old process
151 SIMIX_process_kill(this, (this == simix_global->maestro_process) ? this : SIMIX_process_self());
153 // start the new process
155 ActorImpl::create(arg.name, std::move(arg.code), arg.data, arg.host, arg.properties.get(), nullptr);
156 actor->set_kill_time(arg.kill_time);
157 actor->set_auto_restart(arg.auto_restart);
159 return actor->ciface();
162 smx_activity_t ActorImpl::suspend(ActorImpl* issuer)
165 XBT_DEBUG("Actor '%s' is already suspended", get_cname());
171 /* If we are suspending another actor that is waiting on a sync, suspend its synchronization. */
172 if (this != issuer) {
174 waiting_synchro->suspend();
175 /* If the other actor is not waiting, its suspension is delayed to when the actor is rescheduled. */
179 return activity::ExecImplPtr(new activity::ExecImpl("suspend", "", nullptr, this->host_))->start(0.0, 1.0, 0.0);
183 void ActorImpl::resume()
185 XBT_IN("actor = %p", this);
187 if (context_->iwannadie) {
188 XBT_VERB("Ignoring request to suspend an actor that is currently dying.");
196 /* resume the synchronization that was blocking the resumed actor. */
198 waiting_synchro->resume();
203 smx_activity_t ActorImpl::sleep(double duration)
206 throw_exception(std::make_exception_ptr(simgrid::HostFailureException(
207 XBT_THROW_POINT, std::string("Host ") + std::string(host_->get_cname()) + " failed, you cannot sleep there.")));
209 return simgrid::kernel::activity::SleepImplPtr(new simgrid::kernel::activity::SleepImpl("sleep", host_))
213 void ActorImpl::throw_exception(std::exception_ptr e)
220 /* cancel the blocking synchro if any */
221 if (waiting_synchro) {
223 simgrid::kernel::activity::ExecImplPtr exec =
224 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(waiting_synchro);
228 simgrid::kernel::activity::CommImplPtr comm =
229 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(waiting_synchro);
230 if (comm != nullptr) {
235 simgrid::kernel::activity::SleepImplPtr sleep =
236 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(waiting_synchro);
237 if (sleep != nullptr) {
238 SIMIX_process_sleep_destroy(waiting_synchro);
239 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), this) ==
240 end(simix_global->process_to_run) &&
241 this != SIMIX_process_self()) {
242 XBT_DEBUG("Inserting %s in the to_run list", get_cname());
243 simix_global->process_to_run.push_back(this);
247 simgrid::kernel::activity::RawImplPtr raw =
248 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(waiting_synchro);
249 if (raw != nullptr) {
250 SIMIX_synchro_stop_waiting(this, &simcall);
253 simgrid::kernel::activity::IoImplPtr io =
254 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(waiting_synchro);
259 waiting_synchro = nullptr;
262 void ActorImpl::set_host(sg_host_t dest)
264 simgrid::xbt::intrusive_erase(host_->pimpl_->process_list_, *this);
266 dest->pimpl_->process_list_.push_back(*this);
269 ActorImplPtr ActorImpl::create(std::string name, simgrid::simix::ActorCode code, void* data, simgrid::s4u::Host* host,
270 std::unordered_map<std::string, std::string>* properties, smx_actor_t parent_actor)
273 XBT_DEBUG("Start actor %s@'%s'", name.c_str(), host->get_cname());
275 if (host->is_off()) {
276 XBT_WARN("Cannot launch actor '%s' on failed host '%s'", name.c_str(), host->get_cname());
280 ActorImpl* actor = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(name), host);
282 xbt_assert(code && host != nullptr, "Invalid parameters");
284 actor->set_user_data(data);
287 if (parent_actor != nullptr)
288 actor->ppid_ = parent_actor->pid_;
290 XBT_VERB("Create context %s", actor->get_cname());
291 actor->context_ = SIMIX_context_new(std::move(code), &SIMIX_process_cleanup, actor);
294 if (properties != nullptr)
295 for (auto const& kv : *properties)
296 actor->set_property(kv.first, kv.second);
298 /* Add the process to its host's process list */
299 host->pimpl_->process_list_.push_back(*actor);
301 XBT_DEBUG("Start context '%s'", actor->get_cname());
303 /* Now insert it in the global process list and in the process to run list */
304 simix_global->process_list[actor->pid_] = actor;
305 XBT_DEBUG("Inserting %s(%s) in the to_run list", actor->get_cname(), host->get_cname());
306 simix_global->process_to_run.push_back(actor);
307 intrusive_ptr_add_ref(actor);
309 /* The on_creation() signal must be delayed until there, where the pid and everything is set */
310 simgrid::s4u::Actor::on_creation(actor->iface());
312 return ActorImplPtr(actor);
315 void create_maestro(simgrid::simix::ActorCode code)
317 /* Create maestro process and initialize it */
318 smx_actor_t maestro = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(""), /*host*/ nullptr);
321 maestro->context_ = SIMIX_context_new(simgrid::simix::ActorCode(), nullptr, maestro);
323 maestro->context_ = simix_global->context_factory->create_maestro(code, maestro);
326 maestro->simcall.issuer = maestro;
327 simix_global->maestro_process = maestro;
331 } // namespace kernel
334 smx_actor_t SIMIX_process_attach(const char* name, void* data, const char* hostname,
335 std::unordered_map<std::string, std::string>* properties, smx_actor_t parent_process)
337 // This is mostly a copy/paste from SIMIX_process_new(),
338 // it'd be nice to share some code between those two functions.
340 sg_host_t host = sg_host_by_name(hostname);
341 XBT_DEBUG("Attach process %s on host '%s'", name, hostname);
343 if (host->is_off()) {
344 XBT_WARN("Cannot launch process '%s' on failed host '%s'", name, hostname);
348 smx_actor_t actor = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(name), host);
350 actor->set_user_data(data);
351 actor->code = nullptr;
353 if (parent_process != nullptr)
354 actor->ppid_ = parent_process->pid_;
356 XBT_VERB("Create context %s", actor->get_cname());
357 xbt_assert(simix_global != nullptr, "simix is not initialized, please call MSG_init first");
358 actor->context_ = simix_global->context_factory->attach(&SIMIX_process_cleanup, actor);
361 if (properties != nullptr)
362 for (auto const& kv : *properties)
363 actor->set_property(kv.first, kv.second);
365 /* Add the process to it's host process list */
366 host->pimpl_->process_list_.push_back(*actor);
368 /* Now insert it in the global process list and in the process to run list */
369 simix_global->process_list[actor->pid_] = actor;
370 XBT_DEBUG("Inserting %s(%s) in the to_run list", actor->get_cname(), host->get_cname());
371 simix_global->process_to_run.push_back(actor);
372 intrusive_ptr_add_ref(actor);
374 auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(actor->context_);
375 xbt_assert(nullptr != context, "Not a suitable context");
376 context->attach_start();
378 /* The on_creation() signal must be delayed until there, where the pid and everything is set */
379 simgrid::s4u::ActorPtr tmp = actor->iface(); // Passing this directly to on_creation will lead to crashes
380 simgrid::s4u::Actor::on_creation(tmp);
385 void SIMIX_process_detach()
387 auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(simgrid::kernel::context::Context::self());
388 if (context == nullptr)
389 xbt_die("Not a suitable context");
391 SIMIX_process_cleanup(context->get_actor());
392 context->attach_stop();
396 * @brief Executes the processes from simix_global->process_to_run.
398 * The processes of simix_global->process_to_run are run (in parallel if
399 * possible). On exit, simix_global->process_to_run is empty, and
400 * simix_global->process_that_ran contains the list of processes that just ran.
401 * The two lists are swapped so, be careful when using them before and after a
402 * call to this function.
404 void SIMIX_process_runall()
406 SIMIX_context_runall();
408 simix_global->process_to_run.swap(simix_global->process_that_ran);
409 simix_global->process_to_run.clear();
413 * @brief Internal function to kill a SIMIX process.
415 * This function may be called when a SIMCALL_PROCESS_KILL simcall occurs,
416 * or directly for SIMIX internal purposes.
418 * @param actor poor victim
419 * @param issuer the actor which has sent the PROCESS_KILL. Important to not schedule twice the same actor.
421 void SIMIX_process_kill(smx_actor_t actor, smx_actor_t issuer)
424 if (actor->finished_) {
425 XBT_DEBUG("Ignoring request to kill process %s@%s that is already dead", actor->get_cname(),
426 actor->host_->get_cname());
430 XBT_DEBUG("Actor '%s'@%s is killing actor '%s'@%s", issuer == nullptr ? "(null)" : issuer->get_cname(),
431 (issuer == nullptr || issuer->host_ == nullptr ? "(null)" : issuer->host_->get_cname()), actor->get_cname(),
432 actor->host_->get_cname());
434 actor->context_->iwannadie = true;
435 actor->blocked_ = false;
436 actor->suspended_ = false;
437 actor->exception = nullptr;
439 // Forcefully kill the actor if its host is turned off. Not an HostFailureException because you should not survive that
440 if (actor->host_->is_off())
441 actor->throw_exception(std::make_exception_ptr(simgrid::kernel::context::StopRequest("host failed")));
443 /* destroy the blocking synchro if any */
444 if (actor->waiting_synchro != nullptr) {
446 simgrid::kernel::activity::ExecImplPtr exec =
447 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(actor->waiting_synchro);
448 simgrid::kernel::activity::CommImplPtr comm =
449 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(actor->waiting_synchro);
450 simgrid::kernel::activity::SleepImplPtr sleep =
451 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(actor->waiting_synchro);
452 simgrid::kernel::activity::RawImplPtr raw =
453 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(actor->waiting_synchro);
454 simgrid::kernel::activity::IoImplPtr io =
455 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(actor->waiting_synchro);
457 if (exec != nullptr) {
458 if (exec->surf_action_) {
459 exec->surf_action_->cancel();
460 exec->surf_action_->unref();
461 exec->surf_action_ = nullptr;
463 } else if (comm != nullptr) {
464 actor->comms.remove(actor->waiting_synchro);
466 // Remove first occurrence of &process->simcall:
467 auto i = boost::range::find(actor->waiting_synchro->simcalls_, &actor->simcall);
468 if (i != actor->waiting_synchro->simcalls_.end())
469 actor->waiting_synchro->simcalls_.remove(&actor->simcall);
470 } else if (sleep != nullptr) {
471 if (sleep->surf_action_)
472 sleep->surf_action_->cancel();
474 } else if (raw != nullptr) {
475 SIMIX_synchro_stop_waiting(actor, &actor->simcall);
477 } else if (io != nullptr) {
480 simgrid::kernel::activity::ActivityImplPtr activity = actor->waiting_synchro;
481 xbt_die("Activity %s is of unknown type %s", activity->name_.c_str(),
482 simgrid::xbt::demangle(typeid(activity).name()).get());
485 actor->waiting_synchro = nullptr;
487 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), actor) ==
488 end(simix_global->process_to_run) &&
490 XBT_DEBUG("Inserting %s in the to_run list", actor->get_cname());
491 simix_global->process_to_run.push_back(actor);
495 /** @deprecated When this function gets removed, also remove the xbt_ex class, that is only there to help users to
497 void SIMIX_process_throw(smx_actor_t actor, xbt_errcat_t cat, int value, const char* msg)
499 SMX_EXCEPTION(actor, cat, value, msg);
501 if (actor->suspended_)
504 /* cancel the blocking synchro if any */
505 if (actor->waiting_synchro) {
507 simgrid::kernel::activity::ExecImplPtr exec =
508 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(actor->waiting_synchro);
512 simgrid::kernel::activity::CommImplPtr comm =
513 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(actor->waiting_synchro);
514 if (comm != nullptr) {
515 actor->comms.remove(comm);
519 simgrid::kernel::activity::SleepImplPtr sleep =
520 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(actor->waiting_synchro);
521 if (sleep != nullptr) {
522 SIMIX_process_sleep_destroy(actor->waiting_synchro);
523 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), actor) ==
524 end(simix_global->process_to_run) &&
525 actor != SIMIX_process_self()) {
526 XBT_DEBUG("Inserting %s in the to_run list", actor->get_cname());
527 simix_global->process_to_run.push_back(actor);
531 simgrid::kernel::activity::RawImplPtr raw =
532 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(actor->waiting_synchro);
533 if (raw != nullptr) {
534 SIMIX_synchro_stop_waiting(actor, &actor->simcall);
537 simgrid::kernel::activity::IoImplPtr io =
538 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(actor->waiting_synchro);
543 actor->waiting_synchro = nullptr;
547 * @brief Kills all running processes.
548 * @param issuer this one will not be killed
550 void SIMIX_process_killall(smx_actor_t issuer)
552 for (auto const& kv : simix_global->process_list)
553 if (kv.second != issuer)
554 SIMIX_process_kill(kv.second, issuer);
558 void simcall_HANDLER_process_suspend(smx_simcall_t simcall, smx_actor_t actor)
560 smx_activity_t sync_suspend = actor->suspend(simcall->issuer);
562 if (actor != simcall->issuer) {
563 SIMIX_simcall_answer(simcall);
565 sync_suspend->simcalls_.push_back(simcall);
566 actor->waiting_synchro = sync_suspend;
567 actor->waiting_synchro->suspend();
569 /* If we are suspending ourselves, then just do not finish the simcall now */
572 int SIMIX_process_get_maxpid() {
573 return simix_process_maxpid;
576 int SIMIX_process_count()
578 return simix_global->process_list.size();
581 void* SIMIX_process_self_get_data()
583 smx_actor_t self = SIMIX_process_self();
585 if (self == nullptr) {
588 return self->get_user_data();
591 void SIMIX_process_self_set_data(void *data)
593 SIMIX_process_self()->set_user_data(data);
597 /* needs to be public and without simcall because it is called
598 by exceptions and logging events */
599 const char* SIMIX_process_self_get_name() {
601 smx_actor_t process = SIMIX_process_self();
602 if (process == nullptr || process == simix_global->maestro_process)
605 return process->get_cname();
608 void simcall_HANDLER_process_join(smx_simcall_t simcall, smx_actor_t process, double timeout)
610 if (process->finished_) {
611 // The joined process is already finished, just wake up the issuer process right away
612 simcall_process_sleep__set__result(simcall, SIMIX_DONE);
613 SIMIX_simcall_answer(simcall);
616 smx_activity_t sync = SIMIX_process_join(simcall->issuer, process, timeout);
617 sync->simcalls_.push_back(simcall);
618 simcall->issuer->waiting_synchro = sync;
621 smx_activity_t SIMIX_process_join(smx_actor_t issuer, smx_actor_t process, double timeout)
623 smx_activity_t res = issuer->sleep(timeout);
624 intrusive_ptr_add_ref(res.get());
625 SIMIX_process_on_exit(process,
627 auto sleep = static_cast<simgrid::kernel::activity::SleepImpl*>(arg);
628 if (sleep->surf_action_)
629 sleep->surf_action_->finish(simgrid::kernel::resource::Action::State::FINISHED);
630 intrusive_ptr_release(sleep);
636 void simcall_HANDLER_process_sleep(smx_simcall_t simcall, double duration)
638 if (MC_is_active() || MC_record_replay_is_active()) {
639 MC_process_clock_add(simcall->issuer, duration);
640 simcall_process_sleep__set__result(simcall, SIMIX_DONE);
641 SIMIX_simcall_answer(simcall);
644 smx_activity_t sync = simcall->issuer->sleep(duration);
645 sync->simcalls_.push_back(simcall);
646 simcall->issuer->waiting_synchro = sync;
649 void SIMIX_process_sleep_destroy(smx_activity_t synchro)
651 XBT_DEBUG("Destroy sleep synchro %p", synchro.get());
652 simgrid::kernel::activity::SleepImplPtr sleep =
653 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(synchro);
655 if (sleep->surf_action_) {
656 sleep->surf_action_->unref();
657 sleep->surf_action_ = nullptr;
662 * @brief Calling this function makes the process to yield.
664 * Only the current process can call this function, giving back the control to maestro.
666 * @param self the current process
668 void SIMIX_process_yield(smx_actor_t self)
670 XBT_DEBUG("Yield actor '%s'", self->get_cname());
672 /* Go into sleep and return control to maestro */
673 self->context_->suspend();
675 /* Ok, maestro returned control to us */
676 XBT_DEBUG("Control returned to me: '%s'", self->get_cname());
678 if (self->context_->iwannadie) {
680 XBT_DEBUG("Process %s@%s is dead", self->get_cname(), self->host_->get_cname());
681 // throw simgrid::kernel::context::StopRequest(); Does not seem to properly kill the actor
682 self->context_->stop();
686 if (self->suspended_) {
687 XBT_DEBUG("Hey! I'm suspended.");
688 xbt_assert(self->exception != nullptr, "Gasp! This exception may be lost by subsequent calls.");
689 self->suspended_ = false;
693 if (self->exception != nullptr) {
694 XBT_DEBUG("Wait, maestro left me an exception");
695 std::exception_ptr exception = std::move(self->exception);
696 self->exception = nullptr;
697 std::rethrow_exception(std::move(exception));
700 if (SMPI_switch_data_segment && not self->finished_) {
701 SMPI_switch_data_segment(self->iface());
705 /** @brief Returns the list of processes to run. */
706 const std::vector<smx_actor_t>& simgrid::simix::process_get_runnable()
708 return simix_global->process_to_run;
711 /** @brief Returns the process from PID. */
712 smx_actor_t SIMIX_process_from_PID(aid_t PID)
714 auto actor = simix_global->process_list.find(PID);
715 return actor == simix_global->process_list.end() ? nullptr : actor->second;
718 void SIMIX_process_on_exit(smx_actor_t actor, int_f_pvoid_pvoid_t fun, void* data)
720 SIMIX_process_on_exit(actor, [fun](int a, void* b) { fun((void*)(intptr_t)a, b); }, data);
723 void SIMIX_process_on_exit(smx_actor_t actor, std::function<void(int, void*)> fun, void* data)
725 xbt_assert(actor, "current process not found: are you in maestro context ?");
727 actor->on_exit.emplace_back(s_smx_process_exit_fun_t{fun, data});
730 /** @brief Restart a process, starting it again from the beginning. */
732 * @ingroup simix_process_management
733 * @brief Creates and runs a new SIMIX process.
735 * The structure and the corresponding thread are created and put in the list of ready processes.
737 * @param name a name for the process. It is for user-level information and can be nullptr.
738 * @param code the main function of the process
739 * @param data a pointer to any data one may want to attach to the new object. It is for user-level information and can
741 * It can be retrieved with the method ActorImpl::getUserData().
742 * @param host where the new agent is executed.
743 * @param properties the properties of the process
745 smx_actor_t simcall_process_create(std::string name, simgrid::simix::ActorCode code, void* data, sg_host_t host,
746 std::unordered_map<std::string, std::string>* properties)
748 smx_actor_t self = SIMIX_process_self();
749 return simgrid::simix::simcall([name, code, data, host, properties, self] {
750 return simgrid::kernel::actor::ActorImpl::create(name, std::move(code), data, host, properties, self).get();
754 void simcall_process_set_data(smx_actor_t process, void* data)
756 simgrid::simix::simcall([process, data] { process->set_user_data(data); });