X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/002c591623abdaa8c94a3b434a2f179c35d29cb9..08e94eb0482589e4b287cbea301b84daf52635bd:/src/simix/ActorImpl.cpp diff --git a/src/simix/ActorImpl.cpp b/src/simix/ActorImpl.cpp index 2fb512e81a..2a664f42e5 100644 --- a/src/simix/ActorImpl.cpp +++ b/src/simix/ActorImpl.cpp @@ -16,8 +16,6 @@ #include "src/mc/mc_replay.hpp" #include "src/mc/remote/Client.hpp" #include "src/simix/smx_host_private.hpp" -#include "src/simix/smx_io_private.hpp" -#include "src/simix/smx_synchro_private.hpp" #include "src/surf/HostImpl.hpp" #include "src/surf/cpu_interface.hpp" @@ -50,35 +48,11 @@ int SIMIX_process_has_pending_comms(smx_actor_t process) { return process->comms.size() > 0; } -/** - * @brief Moves a process to the list of processes to destroy. - */ -void SIMIX_process_cleanup(smx_actor_t process) -{ - XBT_DEBUG("Cleanup process %s (%p), waiting synchro %p", process->get_cname(), process, - process->waiting_synchro.get()); - - simix_global->mutex.lock(); - - simix_global->process_list.erase(process->pid_); - if (process->host_ && process->host_process_list_hook.is_linked()) - simgrid::xbt::intrusive_erase(process->host_->pimpl_->process_list_, *process); - if (not process->smx_destroy_list_hook.is_linked()) { -#if SIMGRID_HAVE_MC - xbt_dynar_push_as(simix_global->dead_actors_vector, smx_actor_t, process); -#endif - simix_global->actors_to_destroy.push_back(*process); - } - process->context_->iwannadie = false; - - simix_global->mutex.unlock(); -} - namespace simgrid { namespace kernel { namespace actor { -ActorImpl::ActorImpl(simgrid::xbt::string name, simgrid::s4u::Host* host) : name_(name), host_(host), piface_(this) +ActorImpl::ActorImpl(simgrid::xbt::string name, s4u::Host* host) : host_(host), name_(name), piface_(this) { pid_ = simix_process_maxpid++; simcall.issuer = this; @@ -88,17 +62,109 @@ ActorImpl::~ActorImpl() { delete this->context_; } +/* Become an actor in the simulation + * + * Currently this can only be called by the main thread (once) and only work with some thread factories + * (currently ThreadContextFactory). + * + * In the future, it might be extended in order to attach other threads created by a third party library. + */ + +ActorImplPtr ActorImpl::attach(std::string name, void* data, s4u::Host* host, + std::unordered_map* properties) +{ + // This is mostly a copy/paste from create(), it'd be nice to share some code between those two functions. + + XBT_DEBUG("Attach process %s on host '%s'", name.c_str(), host->get_cname()); + + if (not host->is_on()) { + XBT_WARN("Cannot launch process '%s' on failed host '%s'", name.c_str(), host->get_cname()); + std::rethrow_exception( + std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Cannot attach actor on failed host."))); + } + + ActorImpl* actor = new ActorImpl(xbt::string(name), host); + /* Actor data */ + actor->set_user_data(data); + actor->code = nullptr; + + XBT_VERB("Create context %s", actor->get_cname()); + xbt_assert(simix_global != nullptr, "simix is not initialized, please call MSG_init first"); + actor->context_ = simix_global->context_factory->attach(actor); + + /* Add properties */ + if (properties != nullptr) + for (auto const& kv : *properties) + actor->set_property(kv.first, kv.second); + + /* Add the process to it's host process list */ + host->pimpl_->process_list_.push_back(*actor); + + /* Now insert it in the global process list and in the process to run list */ + simix_global->process_list[actor->get_pid()] = actor; + XBT_DEBUG("Inserting [%p] %s(%s) in the to_run list", actor, actor->get_cname(), host->get_cname()); + simix_global->actors_to_run.push_back(actor); + intrusive_ptr_add_ref(actor); + + auto* context = dynamic_cast(actor->context_); + xbt_assert(nullptr != context, "Not a suitable context"); + context->attach_start(); + + /* The on_creation() signal must be delayed until there, where the pid and everything is set */ + simgrid::s4u::ActorPtr tmp = actor->iface(); // Passing this directly to on_creation will lead to crashes + simgrid::s4u::Actor::on_creation(tmp); + + return ActorImplPtr(actor); +} +/** @brief Detach an actor attached with `attach()` + * + * This is called when the current actor has finished its job. + * Used in the main thread, it waits for the simulation to finish before returning. When it returns, the other + * simulated actors and the maestro are destroyed. + */ +void ActorImpl::detach() +{ + auto* context = dynamic_cast(context::Context::self()); + if (context == nullptr) + xbt_die("Not a suitable context"); + + context->get_actor()->cleanup(); + context->attach_stop(); +} + +void ActorImpl::cleanup() +{ + if (this == simix_global->maestro_process) /* Do not cleanup maestro */ + return; + + XBT_DEBUG("Cleanup actor %s (%p), waiting synchro %p", get_cname(), this, waiting_synchro.get()); + + simix_global->mutex.lock(); + + simix_global->process_list.erase(pid_); + if (host_ && host_process_list_hook.is_linked()) + simgrid::xbt::intrusive_erase(host_->pimpl_->process_list_, *this); + if (not smx_destroy_list_hook.is_linked()) { +#if SIMGRID_HAVE_MC + xbt_dynar_push_as(simix_global->dead_actors_vector, smx_actor_t, this); +#endif + simix_global->actors_to_destroy.push_back(*this); + } + context_->iwannadie = false; + + simix_global->mutex.unlock(); +} void ActorImpl::exit() { context_->iwannadie = true; blocked_ = false; suspended_ = false; - exception = nullptr; + exception_ = nullptr; // Forcefully kill the actor if its host is turned off. Not a HostFailureException because you should not survive that if (not host_->is_on()) - this->throw_exception(std::make_exception_ptr(simgrid::kernel::context::StopRequest("host failed"))); + this->throw_exception(std::make_exception_ptr(ForcefulKillException("host failed"))); /* destroy the blocking synchro if any */ if (waiting_synchro != nullptr) { @@ -116,7 +182,7 @@ void ActorImpl::exit() } else if (comm != nullptr) { comms.remove(waiting_synchro); comm->cancel(); - // Remove first occurrence of &process->simcall: + // Remove first occurrence of &actor->simcall: auto i = boost::range::find(waiting_synchro->simcalls_, &simcall); if (i != waiting_synchro->simcalls_.end()) waiting_synchro->simcalls_.remove(&simcall); @@ -125,7 +191,7 @@ void ActorImpl::exit() sleep->surf_action_->cancel(); sleep->post(); } else if (raw != nullptr) { - SIMIX_synchro_stop_waiting(this, &simcall); + raw->finish(); } else if (io != nullptr) { io->cancel(); } else { @@ -138,16 +204,16 @@ void ActorImpl::exit() } } -void ActorImpl::kill(smx_actor_t actor) +void ActorImpl::kill(ActorImpl* actor) { if (actor->finished_) { - XBT_DEBUG("Ignoring request to kill process %s@%s that is already dead", actor->get_cname(), + XBT_DEBUG("Ignoring request to kill actor %s@%s that is already dead", actor->get_cname(), actor->host_->get_cname()); return; } - XBT_DEBUG("Actor '%s'@%s is killing actor '%s'@%s", get_cname(), host_->get_cname(), actor->get_cname(), - actor->host_->get_cname()); + XBT_DEBUG("Actor '%s'@%s is killing actor '%s'@%s", get_cname(), host_ ? host_->get_cname() : "", actor->get_cname(), + actor->host_ ? actor->host_->get_cname() : ""); actor->exit(); @@ -170,13 +236,18 @@ void ActorImpl::set_kill_time(double kill_time) { if (kill_time <= SIMIX_get_clock()) return; - XBT_DEBUG("Set kill time %f for process %s@%s", kill_time, get_cname(), host_->get_cname()); - kill_timer = SIMIX_timer_set(kill_time, [this] { + XBT_DEBUG("Set kill time %f for actor %s@%s", kill_time, get_cname(), host_->get_cname()); + kill_timer = simix::Timer::set(kill_time, [this] { this->exit(); kill_timer = nullptr; }); } +double ActorImpl::get_kill_time() +{ + return kill_timer ? kill_timer->get_date() : 0; +} + static void dying_daemon(int /*exit_status*/, void* data) { std::vector* vect = &simix_global->daemons; @@ -189,7 +260,45 @@ static void dying_daemon(int /*exit_status*/, void* data) vect->pop_back(); } -/** This process will be terminated automatically when the last non-daemon process finishes */ +void ActorImpl::yield() +{ + XBT_DEBUG("Yield actor '%s'", get_cname()); + + /* Go into sleep and return control to maestro */ + context_->suspend(); + + /* Ok, maestro returned control to us */ + XBT_DEBUG("Control returned to me: '%s'", get_cname()); + + if (context_->iwannadie) { + + XBT_DEBUG("Actor %s@%s is dead", get_cname(), host_->get_cname()); + // throw simgrid::kernel::context::ForcefulKillException(); Does not seem to properly kill the actor + context_->stop(); + THROW_IMPOSSIBLE; + } + + if (suspended_) { + XBT_DEBUG("Hey! I'm suspended."); + + xbt_assert(exception_ == nullptr, "Gasp! This exception may be lost by subsequent calls."); + suspended_ = false; + suspend(this); + } + + if (exception_ != nullptr) { + XBT_DEBUG("Wait, maestro left me an exception"); + std::exception_ptr exception = std::move(exception_); + exception_ = nullptr; + std::rethrow_exception(std::move(exception)); + } + + if (SMPI_switch_data_segment && not finished_) { + SMPI_switch_data_segment(iface()); + } +} + +/** This actor will be terminated automatically when the last non-daemon actor finishes */ void ActorImpl::daemonize() { if (not daemon_) { @@ -199,17 +308,17 @@ void ActorImpl::daemonize() } } -simgrid::s4u::Actor* ActorImpl::restart() +s4u::Actor* ActorImpl::restart() { - XBT_DEBUG("Restarting process %s on %s", get_cname(), host_->get_cname()); + XBT_DEBUG("Restarting actor %s on %s", get_cname(), host_->get_cname()); - // retrieve the arguments of the old process - simgrid::kernel::actor::ProcessArg arg = ProcessArg(host_, this); + // retrieve the arguments of the old actor + ProcessArg arg = ProcessArg(host_, this); - // kill the old process + // kill the old actor (this == simix_global->maestro_process) ? this->exit() : SIMIX_process_self()->kill(this); - // start the new process + // start the new actor ActorImplPtr actor = ActorImpl::create(arg.name, std::move(arg.code), arg.data, arg.host, arg.properties.get(), nullptr); actor->set_kill_time(arg.kill_time); @@ -218,7 +327,7 @@ simgrid::s4u::Actor* ActorImpl::restart() return actor->ciface(); } -smx_activity_t ActorImpl::suspend(ActorImpl* issuer) +activity::ActivityImplPtr ActorImpl::suspend(ActorImpl* issuer) { if (suspended_) { XBT_DEBUG("Actor '%s' is already suspended", get_cname()); @@ -235,7 +344,7 @@ smx_activity_t ActorImpl::suspend(ActorImpl* issuer) return nullptr; } else { - return activity::ExecImplPtr(new activity::ExecImpl("suspend", "", nullptr, this->host_))->start(0.0, 1.0, 0.0); + return activity::ExecImplPtr(new activity::ExecImpl("suspend", "", this->host_))->start(0.0, 1.0, 0.0); } } @@ -259,9 +368,9 @@ void ActorImpl::resume() XBT_OUT(); } -smx_activity_t ActorImpl::join(smx_actor_t actor, double timeout) +activity::ActivityImplPtr ActorImpl::join(smx_actor_t actor, double timeout) { - smx_activity_t res = this->sleep(timeout); + activity::ActivityImplPtr res = this->sleep(timeout); intrusive_ptr_add_ref(res.get()); SIMIX_process_on_exit(actor, [](int, void* arg) { @@ -273,7 +382,8 @@ smx_activity_t ActorImpl::join(smx_actor_t actor, double timeout) res.get()); return res; } -smx_activity_t ActorImpl::sleep(double duration) + +activity::ActivityImplPtr ActorImpl::sleep(double duration) { if (not host_->is_on()) throw_exception(std::make_exception_ptr(simgrid::HostFailureException( @@ -285,7 +395,7 @@ smx_activity_t ActorImpl::sleep(double duration) void ActorImpl::throw_exception(std::exception_ptr e) { - exception = e; + exception_ = e; if (suspended_) resume(); @@ -293,20 +403,17 @@ void ActorImpl::throw_exception(std::exception_ptr e) /* cancel the blocking synchro if any */ if (waiting_synchro) { - simgrid::kernel::activity::ExecImplPtr exec = - boost::dynamic_pointer_cast(waiting_synchro); + activity::ExecImplPtr exec = boost::dynamic_pointer_cast(waiting_synchro); if (exec != nullptr) exec->cancel(); - simgrid::kernel::activity::CommImplPtr comm = - boost::dynamic_pointer_cast(waiting_synchro); + activity::CommImplPtr comm = boost::dynamic_pointer_cast(waiting_synchro); if (comm != nullptr) { comms.remove(comm); comm->cancel(); } - simgrid::kernel::activity::SleepImplPtr sleep = - boost::dynamic_pointer_cast(waiting_synchro); + activity::SleepImplPtr sleep = boost::dynamic_pointer_cast(waiting_synchro); if (sleep != nullptr) { SIMIX_process_sleep_destroy(waiting_synchro); if (std::find(begin(simix_global->actors_to_run), end(simix_global->actors_to_run), this) == @@ -317,14 +424,12 @@ void ActorImpl::throw_exception(std::exception_ptr e) } } - simgrid::kernel::activity::RawImplPtr raw = - boost::dynamic_pointer_cast(waiting_synchro); + activity::RawImplPtr raw = boost::dynamic_pointer_cast(waiting_synchro); if (raw != nullptr) { - SIMIX_synchro_stop_waiting(this, &simcall); + raw->finish(); } - simgrid::kernel::activity::IoImplPtr io = - boost::dynamic_pointer_cast(waiting_synchro); + activity::IoImplPtr io = boost::dynamic_pointer_cast(waiting_synchro); if (io != nullptr) { io->cancel(); } @@ -332,25 +437,26 @@ void ActorImpl::throw_exception(std::exception_ptr e) waiting_synchro = nullptr; } -void ActorImpl::set_host(sg_host_t dest) +void ActorImpl::set_host(s4u::Host* dest) { simgrid::xbt::intrusive_erase(host_->pimpl_->process_list_, *this); host_ = dest; dest->pimpl_->process_list_.push_back(*this); } -ActorImplPtr ActorImpl::create(std::string name, simgrid::simix::ActorCode code, void* data, simgrid::s4u::Host* host, - std::unordered_map* properties, smx_actor_t parent_actor) +ActorImplPtr ActorImpl::create(std::string name, simix::ActorCode code, void* data, s4u::Host* host, + std::unordered_map* properties, ActorImpl* parent_actor) { XBT_DEBUG("Start actor %s@'%s'", name.c_str(), host->get_cname()); if (not host->is_on()) { XBT_WARN("Cannot launch actor '%s' on failed host '%s'", name.c_str(), host->get_cname()); - return nullptr; + std::rethrow_exception( + std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Cannot create actor on failed host."))); } - ActorImpl* actor = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(name), host); + ActorImpl* actor = new ActorImpl(simgrid::xbt::string(name), host); xbt_assert(code && host != nullptr, "Invalid parameters"); /* actor data */ @@ -358,40 +464,40 @@ ActorImplPtr ActorImpl::create(std::string name, simgrid::simix::ActorCode code, actor->code = code; if (parent_actor != nullptr) - actor->ppid_ = parent_actor->pid_; + actor->set_ppid(parent_actor->get_pid()); XBT_VERB("Create context %s", actor->get_cname()); - actor->context_ = SIMIX_context_new(std::move(code), &SIMIX_process_cleanup, actor); + actor->context_ = simix_global->context_factory->create_context(std::move(code), actor); /* Add properties */ if (properties != nullptr) for (auto const& kv : *properties) actor->set_property(kv.first, kv.second); - /* Add the process to its host's process list */ + /* Add the actor to its host's actor list */ host->pimpl_->process_list_.push_back(*actor); XBT_DEBUG("Start context '%s'", actor->get_cname()); - /* Now insert it in the global process list and in the process to run list */ - simix_global->process_list[actor->pid_] = actor; + /* Now insert it in the global actor list and in the actor to run list */ + simix_global->process_list[actor->get_pid()] = actor; XBT_DEBUG("Inserting [%p] %s(%s) in the to_run list", actor, actor->get_cname(), host->get_cname()); simix_global->actors_to_run.push_back(actor); intrusive_ptr_add_ref(actor); /* The on_creation() signal must be delayed until there, where the pid and everything is set */ - simgrid::s4u::Actor::on_creation(actor->iface()); + s4u::Actor::on_creation(actor->iface()); return ActorImplPtr(actor); } -void create_maestro(simgrid::simix::ActorCode code) +void create_maestro(simix::ActorCode code) { - /* Create maestro process and initialize it */ - smx_actor_t maestro = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(""), /*host*/ nullptr); + /* Create maestro actor and initialize it */ + ActorImpl* maestro = new ActorImpl(xbt::string(""), /*host*/ nullptr); if (not code) { - maestro->context_ = SIMIX_context_new(simgrid::simix::ActorCode(), nullptr, maestro); + maestro->context_ = simix_global->context_factory->create_context(simix::ActorCode(), maestro); } else { maestro->context_ = simix_global->context_factory->create_maestro(code, maestro); } @@ -404,75 +510,25 @@ void create_maestro(simgrid::simix::ActorCode code) } // namespace kernel } -smx_actor_t SIMIX_process_attach(const char* name, void* data, const char* hostname, - std::unordered_map* properties, smx_actor_t parent_process) +void SIMIX_process_detach() { - // This is mostly a copy/paste from SIMIX_process_new(), - // it'd be nice to share some code between those two functions. - - sg_host_t host = sg_host_by_name(hostname); - XBT_DEBUG("Attach process %s on host '%s'", name, hostname); - - if (not host->is_on()) { - XBT_WARN("Cannot launch process '%s' on failed host '%s'", name, hostname); - return nullptr; - } - - smx_actor_t actor = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(name), host); - /* Actor data */ - actor->set_user_data(data); - actor->code = nullptr; - - if (parent_process != nullptr) - actor->ppid_ = parent_process->pid_; - - XBT_VERB("Create context %s", actor->get_cname()); - xbt_assert(simix_global != nullptr, "simix is not initialized, please call MSG_init first"); - actor->context_ = simix_global->context_factory->attach(&SIMIX_process_cleanup, actor); - - /* Add properties */ - if (properties != nullptr) - for (auto const& kv : *properties) - actor->set_property(kv.first, kv.second); - - /* Add the process to it's host process list */ - host->pimpl_->process_list_.push_back(*actor); - - /* Now insert it in the global process list and in the process to run list */ - simix_global->process_list[actor->pid_] = actor; - XBT_DEBUG("Inserting [%p] %s(%s) in the to_run list", actor, actor->get_cname(), host->get_cname()); - simix_global->actors_to_run.push_back(actor); - intrusive_ptr_add_ref(actor); - - auto* context = dynamic_cast(actor->context_); - xbt_assert(nullptr != context, "Not a suitable context"); - context->attach_start(); - - /* The on_creation() signal must be delayed until there, where the pid and everything is set */ - simgrid::s4u::ActorPtr tmp = actor->iface(); // Passing this directly to on_creation will lead to crashes - simgrid::s4u::Actor::on_creation(tmp); - - return actor; + simgrid::kernel::actor::ActorImpl::detach(); } -void SIMIX_process_detach() +smx_actor_t SIMIX_process_attach(const char* name, void* data, const char* hostname, + std::unordered_map* properties, + smx_actor_t /*parent_process*/) { - auto* context = dynamic_cast(simgrid::kernel::context::Context::self()); - if (context == nullptr) - xbt_die("Not a suitable context"); - - SIMIX_process_cleanup(context->get_actor()); - context->attach_stop(); + return simgrid::kernel::actor::ActorImpl::attach(name, data, sg_host_by_name(hostname), properties).get(); } - /** @deprecated When this function gets removed, also remove the xbt_ex class, that is only there to help users to * transition */ void SIMIX_process_throw(smx_actor_t actor, xbt_errcat_t cat, int value, const char* msg) { SMX_EXCEPTION(actor, cat, value, msg); - if (actor->suspended_) + if (actor->is_suspended()) actor->resume(); /* cancel the blocking synchro if any */ @@ -505,7 +561,7 @@ void SIMIX_process_throw(smx_actor_t actor, xbt_errcat_t cat, int value, const c simgrid::kernel::activity::RawImplPtr raw = boost::dynamic_pointer_cast(actor->waiting_synchro); if (raw != nullptr) { - SIMIX_synchro_stop_waiting(actor, &actor->simcall); + raw->finish(); } simgrid::kernel::activity::IoImplPtr io = @@ -612,42 +668,6 @@ void SIMIX_process_sleep_destroy(smx_activity_t synchro) * * @param self the current process */ -void SIMIX_process_yield(smx_actor_t self) -{ - XBT_DEBUG("Yield actor '%s'", self->get_cname()); - - /* Go into sleep and return control to maestro */ - self->context_->suspend(); - - /* Ok, maestro returned control to us */ - XBT_DEBUG("Control returned to me: '%s'", self->get_cname()); - - if (self->context_->iwannadie) { - - XBT_DEBUG("Process %s@%s is dead", self->get_cname(), self->host_->get_cname()); - // throw simgrid::kernel::context::StopRequest(); Does not seem to properly kill the actor - self->context_->stop(); - THROW_IMPOSSIBLE; - } - - if (self->suspended_) { - XBT_DEBUG("Hey! I'm suspended."); - xbt_assert(self->exception != nullptr, "Gasp! This exception may be lost by subsequent calls."); - self->suspended_ = false; - self->suspend(self); - } - - if (self->exception != nullptr) { - XBT_DEBUG("Wait, maestro left me an exception"); - std::exception_ptr exception = std::move(self->exception); - self->exception = nullptr; - std::rethrow_exception(std::move(exception)); - } - - if (SMPI_switch_data_segment && not self->finished_) { - SMPI_switch_data_segment(self->iface()); - } -} /** @brief Returns the list of processes to run. * @deprecated @@ -669,7 +689,7 @@ void SIMIX_process_on_exit(smx_actor_t actor, int_f_pvoid_pvoid_t fun, void* dat SIMIX_process_on_exit(actor, [fun](int a, void* b) { fun((void*)(intptr_t)a, b); }, data); } -void SIMIX_process_on_exit(smx_actor_t actor, std::function fun, void* data) +void SIMIX_process_on_exit(smx_actor_t actor, std::function fun, void* data) { xbt_assert(actor, "current process not found: are you in maestro context ?");