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);
151 ActorImpl::~ActorImpl()
153 delete this->context;
156 static int dying_daemon(void* exit_status, void* data)
158 std::vector<ActorImpl*>* vect = &simix_global->daemons;
160 auto it = std::find(vect->begin(), vect->end(), static_cast<ActorImpl*>(data));
161 xbt_assert(it != vect->end(), "The dying daemon is not a daemon after all. Please report that bug.");
163 /* Don't move the whole content since we don't really care about the order */
164 std::swap(*it, vect->back());
169 /** This process will be terminated automatically when the last non-daemon process finishes */
170 void ActorImpl::daemonize()
174 simix_global->daemons.push_back(this);
175 SIMIX_process_on_exit(this, dying_daemon, this);
179 simgrid::s4u::Actor* ActorImpl::restart()
181 XBT_DEBUG("Restarting process %s on %s", getCname(), host->getCname());
183 // retrieve the arguments of the old process
184 // FIXME: Factorize this with SIMIX_host_add_auto_restart_process ?
185 simgrid::simix::ProcessArg arg;
189 arg.kill_time = SIMIX_timer_get_date(kill_timer);
191 arg.properties = nullptr;
192 arg.auto_restart = auto_restart;
194 // kill the old process
195 SIMIX_process_kill(this, (this == simix_global->maestro_process) ? this : SIMIX_process_self());
197 // start the new process
198 ActorImpl* actor = simix_global->create_process_function(arg.name.c_str(), std::move(arg.code), arg.data, arg.host,
199 arg.properties.get(), nullptr);
200 if (arg.kill_time >= 0)
201 simcall_process_set_kill_time(actor, arg.kill_time);
202 if (arg.auto_restart)
203 actor->auto_restart = arg.auto_restart;
205 return actor->ciface();
208 smx_activity_t ActorImpl::suspend(ActorImpl* issuer)
211 XBT_DEBUG("Actor '%s' is already suspended", name.c_str());
217 /* If we are suspending another actor that is waiting on a sync, suspend its synchronization. */
218 if (this != issuer) {
220 waiting_synchro->suspend();
221 /* If the other actor is not waiting, its suspension is delayed to when the actor is rescheduled. */
225 return SIMIX_execution_start("suspend", 0.0, 1.0, 0.0, this->host);
229 void ActorImpl::resume()
231 XBT_IN("process = %p", this);
233 if (context->iwannadie) {
234 XBT_VERB("Ignoring request to suspend an actor that is currently dying.");
242 /* resume the synchronization that was blocking the resumed actor. */
244 waiting_synchro->resume();
249 smx_activity_t ActorImpl::sleep(double duration)
252 THROWF(host_error, 0, "Host %s failed, you cannot sleep there.", host->getCname());
254 simgrid::kernel::activity::SleepImpl* synchro = new simgrid::kernel::activity::SleepImpl();
255 synchro->host = host;
256 synchro->surf_sleep = host->pimpl_cpu->sleep(duration);
257 synchro->surf_sleep->setData(synchro);
258 XBT_DEBUG("Create sleep synchronization %p", synchro);
263 void create_maestro(std::function<void()> code)
265 smx_actor_t maestro = nullptr;
266 /* Create maestro process and initialize it */
267 maestro = new simgrid::simix::ActorImpl();
268 maestro->pid = simix_process_maxpid++;
270 maestro->userdata = nullptr;
273 maestro->context = SIMIX_context_new(std::function<void()>(), nullptr, maestro);
275 if (not simix_global)
276 xbt_die("simix is not initialized, please call MSG_init first");
277 maestro->context = simix_global->context_factory->create_maestro(code, maestro);
280 maestro->simcall.issuer = maestro;
281 simix_global->maestro_process = maestro;
287 /** @brief Creates and runs the maestro process */
288 void SIMIX_maestro_create(void (*code)(void*), void* data)
290 simgrid::simix::create_maestro(std::bind(code, data));
294 * \brief Internal function to create a process.
296 * This function actually creates the process.
297 * It may be called when a SIMCALL_PROCESS_CREATE simcall occurs,
298 * or directly for SIMIX internal purposes. The sure thing is that it's called from maestro context.
300 * \return the process created
302 smx_actor_t SIMIX_process_create(const char* name, std::function<void()> code, void* data, simgrid::s4u::Host* host,
303 std::map<std::string, std::string>* properties, smx_actor_t parent_process)
306 XBT_DEBUG("Start process %s on host '%s'", name, host->getCname());
309 XBT_WARN("Cannot launch process '%s' on failed host '%s'", name, host->getCname());
313 smx_actor_t process = new simgrid::simix::ActorImpl();
315 xbt_assert(code && host != nullptr, "Invalid parameters");
317 process->pid = simix_process_maxpid++;
318 process->name = simgrid::xbt::string(name);
319 process->host = host;
320 process->userdata = data;
321 process->simcall.issuer = process;
323 if (parent_process != nullptr) {
324 process->ppid = parent_process->pid;
327 process->code = code;
329 XBT_VERB("Create context %s", process->name.c_str());
330 process->context = SIMIX_context_new(std::move(code), simix_global->cleanup_process_function, process);
333 if (properties != nullptr)
334 for (auto const& kv : *properties)
335 process->setProperty(kv.first, kv.second);
337 /* Make sure that the process is initialized for simix, in case we are called from the Host::onCreation signal */
338 if (host->extension<simgrid::simix::Host>() == nullptr)
339 host->extension_set<simgrid::simix::Host>(new simgrid::simix::Host());
341 /* Add the process to its host's process list */
342 host->extension<simgrid::simix::Host>()->process_list.push_back(*process);
344 XBT_DEBUG("Start context '%s'", process->name.c_str());
346 /* Now insert it in the global process list and in the process to run list */
347 simix_global->process_list[process->pid] = process;
348 XBT_DEBUG("Inserting %s(%s) in the to_run list", process->getCname(), host->getCname());
349 simix_global->process_to_run.push_back(process);
350 intrusive_ptr_add_ref(process);
351 /* Tracing the process creation */
352 TRACE_msg_process_create(process->getName(), process->pid, process->host);
354 /* The onCreation() signal must be delayed until there, where the pid and everything is set */
355 simgrid::s4u::ActorPtr tmp = process->iface(); // Passing this directly to onCreation will lead to crashes
356 simgrid::s4u::Actor::onCreation(tmp);
361 smx_actor_t SIMIX_process_attach(const char* name, void* data, const char* hostname,
362 std::map<std::string, std::string>* properties, smx_actor_t parent_process)
364 // This is mostly a copy/paste from SIMIX_process_new(),
365 // it'd be nice to share some code between those two functions.
367 sg_host_t host = sg_host_by_name(hostname);
368 XBT_DEBUG("Attach process %s on host '%s'", name, hostname);
371 XBT_WARN("Cannot launch process '%s' on failed host '%s'", name, hostname);
375 smx_actor_t process = new simgrid::simix::ActorImpl();
377 process->pid = simix_process_maxpid++;
378 process->name = std::string(name);
379 process->host = host;
380 process->userdata = data;
381 process->simcall.issuer = process;
383 if (parent_process != nullptr) {
384 process->ppid = parent_process->pid;
387 /* Process data for auto-restart */
388 process->code = nullptr;
390 XBT_VERB("Create context %s", process->name.c_str());
391 if (not simix_global)
392 xbt_die("simix is not initialized, please call MSG_init first");
393 process->context = simix_global->context_factory->attach(simix_global->cleanup_process_function, process);
396 if (properties != nullptr)
397 for (auto const& kv : *properties)
398 process->setProperty(kv.first, kv.second);
400 /* Add the process to it's host process list */
401 host->extension<simgrid::simix::Host>()->process_list.push_back(*process);
403 /* Now insert it in the global process list and in the process to run list */
404 simix_global->process_list[process->pid] = process;
405 XBT_DEBUG("Inserting %s(%s) in the to_run list", process->getCname(), host->getCname());
406 simix_global->process_to_run.push_back(process);
407 intrusive_ptr_add_ref(process);
409 /* Tracing the process creation */
410 TRACE_msg_process_create(process->getName(), process->pid, process->host);
412 auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(process->context);
414 xbt_die("Not a suitable context");
416 context->attach_start();
420 void SIMIX_process_detach()
422 auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(SIMIX_context_self());
424 xbt_die("Not a suitable context");
426 auto process = context->process();
427 simix_global->cleanup_process_function(process);
428 context->attach_stop();
432 * \brief Executes the processes from simix_global->process_to_run.
434 * The processes of simix_global->process_to_run are run (in parallel if
435 * possible). On exit, simix_global->process_to_run is empty, and
436 * simix_global->process_that_ran contains the list of processes that just ran.
437 * The two lists are swapped so, be careful when using them before and after a
438 * call to this function.
440 void SIMIX_process_runall()
442 SIMIX_context_runall();
444 simix_global->process_to_run.swap(simix_global->process_that_ran);
445 simix_global->process_to_run.clear();
449 * \brief Internal function to kill a SIMIX process.
451 * This function may be called when a SIMCALL_PROCESS_KILL simcall occurs,
452 * or directly for SIMIX internal purposes.
454 * \param process poor victim
455 * \param issuer the process which has sent the PROCESS_KILL. Important to not schedule twice the same process.
457 void SIMIX_process_kill(smx_actor_t process, smx_actor_t issuer) {
459 if (process->finished) {
460 XBT_DEBUG("Ignoring request to kill process %s@%s that is already dead", process->getCname(),
461 process->host->getCname());
465 XBT_DEBUG("Killing process %s@%s", process->getCname(), process->host->getCname());
467 process->context->iwannadie = 1;
468 process->blocked = 0;
469 process->suspended = 0;
470 process->exception = nullptr;
472 /* destroy the blocking synchro if any */
473 if (process->waiting_synchro != nullptr) {
475 simgrid::kernel::activity::ExecImplPtr exec =
476 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(process->waiting_synchro);
477 simgrid::kernel::activity::CommImplPtr comm =
478 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(process->waiting_synchro);
479 simgrid::kernel::activity::SleepImplPtr sleep =
480 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(process->waiting_synchro);
481 simgrid::kernel::activity::RawImplPtr raw =
482 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(process->waiting_synchro);
483 simgrid::kernel::activity::IoImplPtr io =
484 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(process->waiting_synchro);
486 if (exec != nullptr) {
487 if (exec->surfAction_) {
488 exec->surfAction_->cancel();
489 exec->surfAction_->unref();
490 exec->surfAction_ = nullptr;
492 } else if (comm != nullptr) {
493 process->comms.remove(process->waiting_synchro);
495 // Remove first occurrence of &process->simcall:
496 auto i = boost::range::find(process->waiting_synchro->simcalls, &process->simcall);
497 if (i != process->waiting_synchro->simcalls.end())
498 process->waiting_synchro->simcalls.remove(&process->simcall);
499 } else if (sleep != nullptr) {
500 SIMIX_process_sleep_destroy(process->waiting_synchro);
502 } else if (raw != nullptr) {
503 SIMIX_synchro_stop_waiting(process, &process->simcall);
505 } else if (io != nullptr) {
506 SIMIX_io_destroy(process->waiting_synchro);
508 xbt_die("Unknown type of activity");
511 process->waiting_synchro = nullptr;
513 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), process) ==
514 end(simix_global->process_to_run) &&
516 XBT_DEBUG("Inserting %s in the to_run list", process->name.c_str());
517 simix_global->process_to_run.push_back(process);
521 /** @brief Ask another process to raise the given exception
523 * @param process The process that should raise that exception
524 * @param cat category of exception
525 * @param value value associated to the exception
526 * @param msg string information associated to the exception
528 void SIMIX_process_throw(smx_actor_t process, xbt_errcat_t cat, int value, const char *msg) {
529 SMX_EXCEPTION(process, cat, value, msg);
531 if (process->suspended)
534 /* cancel the blocking synchro if any */
535 if (process->waiting_synchro) {
537 simgrid::kernel::activity::ExecImplPtr exec =
538 boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(process->waiting_synchro);
539 if (exec != nullptr && exec->surfAction_)
540 exec->surfAction_->cancel();
542 simgrid::kernel::activity::CommImplPtr comm =
543 boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(process->waiting_synchro);
544 if (comm != nullptr) {
545 process->comms.remove(comm);
549 simgrid::kernel::activity::SleepImplPtr sleep =
550 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(process->waiting_synchro);
551 if (sleep != nullptr) {
552 SIMIX_process_sleep_destroy(process->waiting_synchro);
553 if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), process) ==
554 end(simix_global->process_to_run) &&
555 process != SIMIX_process_self()) {
556 XBT_DEBUG("Inserting %s in the to_run list", process->name.c_str());
557 simix_global->process_to_run.push_back(process);
561 simgrid::kernel::activity::RawImplPtr raw =
562 boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(process->waiting_synchro);
563 if (raw != nullptr) {
564 SIMIX_synchro_stop_waiting(process, &process->simcall);
567 simgrid::kernel::activity::IoImplPtr io =
568 boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(process->waiting_synchro);
570 SIMIX_io_destroy(process->waiting_synchro);
573 process->waiting_synchro = nullptr;
577 void simcall_HANDLER_process_killall(smx_simcall_t simcall, int reset_pid) {
578 SIMIX_process_killall(simcall->issuer, reset_pid);
581 * \brief Kills all running processes.
582 * \param issuer this one will not be killed
584 void SIMIX_process_killall(smx_actor_t issuer, int reset_pid)
586 for (auto const& kv : simix_global->process_list)
587 if (kv.second != issuer)
588 SIMIX_process_kill(kv.second, issuer);
591 simix_process_maxpid = reset_pid;
594 void SIMIX_process_change_host(smx_actor_t actor, sg_host_t dest)
596 xbt_assert((actor != nullptr), "Invalid parameters");
597 simgrid::xbt::intrusive_erase(actor->host->extension<simgrid::simix::Host>()->process_list, *actor);
599 dest->extension<simgrid::simix::Host>()->process_list.push_back(*actor);
602 void simcall_HANDLER_process_suspend(smx_simcall_t simcall, smx_actor_t process)
604 smx_activity_t sync_suspend = process->suspend(simcall->issuer);
606 if (process != simcall->issuer) {
607 SIMIX_simcall_answer(simcall);
609 sync_suspend->simcalls.push_back(simcall);
610 process->waiting_synchro = sync_suspend;
611 process->waiting_synchro->suspend();
613 /* If we are suspending ourselves, then just do not finish the simcall now */
616 int SIMIX_process_get_maxpid() {
617 return simix_process_maxpid;
620 int SIMIX_process_count()
622 return simix_global->process_list.size();
625 void* SIMIX_process_self_get_data()
627 smx_actor_t self = SIMIX_process_self();
632 return self->getUserData();
635 void SIMIX_process_self_set_data(void *data)
637 SIMIX_process_self()->setUserData(data);
641 /* needs to be public and without simcall because it is called
642 by exceptions and logging events */
643 const char* SIMIX_process_self_get_name() {
645 smx_actor_t process = SIMIX_process_self();
646 if (process == nullptr || process == simix_global->maestro_process)
649 return process->name.c_str();
652 void simcall_HANDLER_process_join(smx_simcall_t simcall, smx_actor_t process, double timeout)
654 if (process->finished) {
655 // The joined process is already finished, just wake up the issuer process right away
656 simcall_process_sleep__set__result(simcall, SIMIX_DONE);
657 SIMIX_simcall_answer(simcall);
660 smx_activity_t sync = SIMIX_process_join(simcall->issuer, process, timeout);
661 sync->simcalls.push_back(simcall);
662 simcall->issuer->waiting_synchro = sync;
665 smx_activity_t SIMIX_process_join(smx_actor_t issuer, smx_actor_t process, double timeout)
667 smx_activity_t res = issuer->sleep(timeout);
668 intrusive_ptr_add_ref(res.get());
669 SIMIX_process_on_exit(process,
670 [](void*, void* arg) {
671 auto sleep = static_cast<simgrid::kernel::activity::SleepImpl*>(arg);
672 if (sleep->surf_sleep)
673 sleep->surf_sleep->finish(simgrid::surf::Action::State::done);
674 intrusive_ptr_release(sleep);
681 void simcall_HANDLER_process_sleep(smx_simcall_t simcall, double duration)
683 if (MC_is_active() || MC_record_replay_is_active()) {
684 MC_process_clock_add(simcall->issuer, duration);
685 simcall_process_sleep__set__result(simcall, SIMIX_DONE);
686 SIMIX_simcall_answer(simcall);
689 smx_activity_t sync = simcall->issuer->sleep(duration);
690 sync->simcalls.push_back(simcall);
691 simcall->issuer->waiting_synchro = sync;
694 void SIMIX_process_sleep_destroy(smx_activity_t synchro)
696 XBT_DEBUG("Destroy sleep synchro %p", synchro.get());
697 simgrid::kernel::activity::SleepImplPtr sleep =
698 boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(synchro);
700 if (sleep->surf_sleep) {
701 sleep->surf_sleep->unref();
702 sleep->surf_sleep = nullptr;
707 * \brief Calling this function makes the process to yield.
709 * Only the current process can call this function, giving back the control to maestro.
711 * \param self the current process
713 void SIMIX_process_yield(smx_actor_t self)
715 XBT_DEBUG("Yield actor '%s'", self->getCname());
717 /* Go into sleep and return control to maestro */
718 self->context->suspend();
720 /* Ok, maestro returned control to us */
721 XBT_DEBUG("Control returned to me: '%s'", self->name.c_str());
723 if (self->context->iwannadie){
724 XBT_DEBUG("I wanna die!");
725 self->finished = true;
726 /* execute the on_exit functions */
727 SIMIX_process_on_exit_runall(self);
728 /* Add the process to the list of process to restart, only if the host is down */
729 if (self->auto_restart && self->host->isOff()) {
730 SIMIX_host_add_auto_restart_process(self->host, self->getCname(), self->code, self->userdata,
731 SIMIX_timer_get_date(self->kill_timer), self->getProperties(),
734 XBT_DEBUG("Process %s@%s is dead", self->getCname(), self->host->getCname());
735 self->context->stop();
738 if (self->suspended) {
739 XBT_DEBUG("Hey! I'm suspended.");
740 xbt_assert(self->exception != nullptr, "Gasp! This exception may be lost by subsequent calls.");
745 if (self->exception != nullptr) {
746 XBT_DEBUG("Wait, maestro left me an exception");
747 std::exception_ptr exception = std::move(self->exception);
748 self->exception = nullptr;
749 std::rethrow_exception(std::move(exception));
752 if(SMPI_switch_data_segment){
753 SMPI_switch_data_segment(self->pid);
757 /** @brief Returns the list of processes to run. */
758 const std::vector<smx_actor_t>& simgrid::simix::process_get_runnable()
760 return simix_global->process_to_run;
763 /** @brief Returns the process from PID. */
764 smx_actor_t SIMIX_process_from_PID(aid_t PID)
766 auto process = simix_global->process_list.find(PID);
767 return process == simix_global->process_list.end() ? nullptr : process->second;
770 void SIMIX_process_on_exit_runall(smx_actor_t process) {
771 simgrid::s4u::Actor::onDestruction(process->iface());
772 smx_process_exit_status_t exit_status = (process->context->iwannadie) ? SMX_EXIT_FAILURE : SMX_EXIT_SUCCESS;
773 while (not process->on_exit.empty()) {
774 s_smx_process_exit_fun_t exit_fun = process->on_exit.back();
775 process->on_exit.pop_back();
776 (exit_fun.fun)((void*)exit_status, exit_fun.arg);
780 void SIMIX_process_on_exit(smx_actor_t process, int_f_pvoid_pvoid_t fun, void *data) {
781 xbt_assert(process, "current process not found: are you in maestro context ?");
783 s_smx_process_exit_fun_t exit_fun = {fun, data};
785 process->on_exit.push_back(exit_fun);
789 * \brief Sets the auto-restart status of the process.
790 * If set to 1, the process will be automatically restarted when its host comes back.
792 void SIMIX_process_auto_restart_set(smx_actor_t process, int auto_restart) {
793 process->auto_restart = auto_restart;
796 /** @brief Restart a process, starting it again from the beginning. */
798 * \ingroup simix_process_management
799 * \brief Creates and runs a new SIMIX process.
801 * The structure and the corresponding thread are created and put in the list of ready processes.
803 * \param name a name for the process. It is for user-level information and can be nullptr.
804 * \param code the main function of the process
805 * \param data a pointer to any data one may want to attach to the new object. It is for user-level information and can
807 * It can be retrieved with the function \ref simcall_process_get_data.
808 * \param host where the new agent is executed.
809 * \param kill_time time when the process is killed
810 * \param argc first argument passed to \a code
811 * \param argv second argument passed to \a code
812 * \param properties the properties of the process
813 * \param auto_restart either it is autorestarting or not.
815 extern "C" smx_actor_t simcall_process_create(const char* name, xbt_main_func_t code, void* data, sg_host_t host,
816 int argc, char** argv, std::map<std::string, std::string>* properties)
820 auto wrapped_code = simgrid::xbt::wrapMain(code, argc, argv);
821 for (int i = 0; i != argc; ++i)
824 smx_actor_t res = simcall_process_create(name, std::move(wrapped_code), data, host, properties);
828 smx_actor_t simcall_process_create(const char* name, std::function<void()> code, void* data, sg_host_t host,
829 std::map<std::string, std::string>* properties)
833 smx_actor_t self = SIMIX_process_self();
834 return simgrid::simix::kernelImmediate([name, code, data, host, properties, self] {
835 return SIMIX_process_create(name, std::move(code), data, host, properties, self);