-/* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "mc/mc.h"
#include "simgrid/Exception.hpp"
+#include "simgrid/s4u/Actor.hpp"
+#include "simgrid/s4u/Exec.hpp"
#include "smx_private.hpp"
#include "src/kernel/activity/CommImpl.hpp"
#include "src/kernel/activity/ExecImpl.hpp"
#include "src/kernel/activity/SynchroRaw.hpp"
#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"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_process, simix, "Logging specific to SIMIX (process)");
-unsigned long simix_process_maxpid = 0;
+static unsigned long simix_process_maxpid = 0;
/**
* @brief Returns the current agent.
{
smx_context_t self_context = simgrid::kernel::context::Context::self();
- return (self_context != nullptr) ? self_context->process() : nullptr;
+ return (self_context != nullptr) ? self_context->get_actor() : nullptr;
}
/**
* @brief Returns whether a process has pending asynchronous communications.
* @return true if there are asynchronous communications in this process
+ * @deprecated
*/
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.
+namespace simgrid {
+namespace kernel {
+namespace actor {
+
+ActorImpl::ActorImpl(simgrid::xbt::string name, s4u::Host* host) : host_(host), name_(name), piface_(this)
+{
+ pid_ = simix_process_maxpid++;
+ simcall.issuer = this;
+}
+
+ActorImpl::~ActorImpl() = default;
+
+/* 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.
*/
-void SIMIX_process_cleanup(smx_actor_t process)
+
+ActorImplPtr ActorImpl::attach(std::string name, void* data, s4u::Host* host,
+ std::unordered_map<std::string, std::string>* properties)
{
- XBT_DEBUG("Cleanup process %s (%p), waiting synchro %p", process->get_cname(), process,
- process->waiting_synchro.get());
+ // This is mostly a copy/paste from create(), it'd be nice to share some code between those two functions.
- process->finished_ = true;
- SIMIX_process_on_exit_runall(process);
+ XBT_DEBUG("Attach process %s on host '%s'", name.c_str(), host->get_cname());
- /* Unregister from the kill timer if any */
- if (process->kill_timer != nullptr) {
- SIMIX_timer_remove(process->kill_timer);
- process->kill_timer = nullptr;
+ 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.")));
}
- simix_global->mutex.lock();
+ ActorImpl* actor = new ActorImpl(xbt::string(name), host);
+ /* Actor data */
+ actor->set_user_data(data);
+ actor->code = nullptr;
- /* cancel non-blocking communications */
- while (not process->comms.empty()) {
- smx_activity_t synchro = process->comms.front();
- process->comms.pop_front();
- simgrid::kernel::activity::CommImplPtr comm =
- boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro);
+ XBT_VERB("Create context %s", actor->get_cname());
+ xbt_assert(simix_global != nullptr, "simix is not initialized, please call MSG_init first");
+ actor->context_.reset(simix_global->context_factory->attach(actor));
- /* make sure no one will finish the comm after this process is destroyed,
- * because src_proc or dst_proc would be an invalid pointer */
+ /* Add properties */
+ if (properties != nullptr)
+ for (auto const& kv : *properties)
+ actor->set_property(kv.first, kv.second);
- if (comm->src_proc == process) {
- XBT_DEBUG("Found an unfinished send comm %p (detached = %d), state %d, src = %p, dst = %p", comm.get(),
- comm->detached, (int)comm->state_, comm->src_proc, comm->dst_proc);
- comm->src_proc = nullptr;
+ /* Add the process to it's host process list */
+ host->pimpl_->process_list_.push_back(*actor);
- } else if (comm->dst_proc == process) {
- XBT_DEBUG("Found an unfinished recv comm %p, state %d, src = %p, dst = %p", comm.get(), (int)comm->state_,
- comm->src_proc, comm->dst_proc);
- comm->dst_proc = nullptr;
+ /* 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);
- if (comm->detached && comm->src_proc != nullptr) {
- /* the comm will be freed right now, remove it from the sender */
- comm->src_proc->comms.remove(comm);
- }
- } else {
- xbt_die("Communication synchro %p is in my list but I'm not the sender nor the receiver", synchro.get());
- }
- comm->cancel();
- }
+ auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(actor->context_.get());
+ xbt_assert(nullptr != context, "Not a suitable context");
+ context->attach_start();
- XBT_DEBUG("%s@%s(%ld) should not run anymore", process->get_cname(), process->iface()->get_host()->get_cname(),
- process->pid_);
- 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()) {
+ /* 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::AttachContext*>(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, process);
+ xbt_dynar_push_as(simix_global->dead_actors_vector, smx_actor_t, this);
#endif
- simix_global->process_to_destroy.push_back(*process);
+ simix_global->actors_to_destroy.push_back(*this);
}
- process->context_->iwannadie = false;
+ context_->iwannadie = false;
simix_global->mutex.unlock();
}
-/**
- * Garbage collection
- *
- * Should be called some time to time to free the memory allocated for processes that have finished (or killed).
- */
-void SIMIX_process_empty_trash()
+void ActorImpl::exit()
{
- while (not simix_global->process_to_destroy.empty()) {
- smx_actor_t process = &simix_global->process_to_destroy.front();
- simix_global->process_to_destroy.pop_front();
- XBT_DEBUG("Getting rid of %p",process);
- intrusive_ptr_release(process);
+ context_->iwannadie = true;
+ blocked_ = false;
+ suspended_ = false;
+ 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(ForcefulKillException("host failed")));
+
+ /* destroy the blocking synchro if any */
+ if (waiting_synchro != nullptr) {
+
+ activity::ExecImplPtr exec = boost::dynamic_pointer_cast<activity::ExecImpl>(waiting_synchro);
+ activity::CommImplPtr comm = boost::dynamic_pointer_cast<activity::CommImpl>(waiting_synchro);
+ activity::SleepImplPtr sleep = boost::dynamic_pointer_cast<activity::SleepImpl>(waiting_synchro);
+ activity::RawImplPtr raw = boost::dynamic_pointer_cast<activity::RawImpl>(waiting_synchro);
+ activity::IoImplPtr io = boost::dynamic_pointer_cast<activity::IoImpl>(waiting_synchro);
+
+ if (exec != nullptr && exec->surf_action_) {
+ exec->cancel();
+ exec->surf_action_->unref();
+ exec->surf_action_ = nullptr;
+ } else if (comm != nullptr) {
+ comms.remove(waiting_synchro);
+ comm->cancel();
+ // 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);
+ } else if (sleep != nullptr) {
+ if (sleep->surf_action_)
+ sleep->surf_action_->cancel();
+ sleep->post();
+ } else if (raw != nullptr) {
+ raw->finish();
+ } else if (io != nullptr) {
+ io->cancel();
+ } else {
+ simgrid::kernel::activity::ActivityImplPtr activity = waiting_synchro;
+ xbt_die("Activity %s is of unknown type %s", activity->get_cname(),
+ simgrid::xbt::demangle(typeid(activity).name()).get());
+ }
+
+ waiting_synchro = nullptr;
}
-#if SIMGRID_HAVE_MC
- xbt_dynar_reset(simix_global->dead_actors_vector);
-#endif
}
-namespace simgrid {
+void ActorImpl::kill(ActorImpl* actor)
+{
+ if (actor->finished_) {
+ XBT_DEBUG("Ignoring request to kill actor %s@%s that is already dead", actor->get_cname(),
+ actor->host_->get_cname());
+ return;
+ }
-namespace kernel {
-namespace actor {
+ 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();
-ActorImpl::ActorImpl(simgrid::xbt::string name, simgrid::s4u::Host* host) : name_(name), host_(host), piface_(this)
+ if (std::find(begin(simix_global->actors_to_run), end(simix_global->actors_to_run), actor) ==
+ end(simix_global->actors_to_run) &&
+ actor != this) {
+ XBT_DEBUG("Inserting %s in the to_run list", actor->get_cname());
+ simix_global->actors_to_run.push_back(actor);
+ }
+}
+
+void ActorImpl::kill_all()
{
- pid_ = simix_process_maxpid++;
- simcall.issuer = this;
+ for (auto const& kv : simix_global->process_list)
+ if (kv.second != this)
+ this->kill(kv.second);
}
-ActorImpl::~ActorImpl()
+void ActorImpl::set_kill_time(double kill_time)
{
- delete this->context_;
+ if (kill_time <= SIMIX_get_clock())
+ return;
+ 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)
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_) {
}
}
-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
- SIMIX_process_kill(this, (this == simix_global->maestro_process) ? this : SIMIX_process_self());
+ // kill the old actor
+ (this == simix_global->maestro_process) ? this->exit() : SIMIX_process_self()->kill(this);
- // start the new process
- ActorImpl* actor =
- SIMIX_process_create(arg.name, std::move(arg.code), arg.data, arg.host, arg.properties.get(), nullptr);
- simcall_process_set_kill_time(actor, arg.kill_time);
+ // 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);
actor->set_auto_restart(arg.auto_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());
return nullptr;
} else {
- return SIMIX_execution_start("suspend", "", 0.0, 1.0, 0.0, this->host_);
+ return activity::ExecImplPtr(new activity::ExecImpl("suspend", ""))->set_host(host_)->start(0.0, 1.0, 0.0);
}
}
void ActorImpl::resume()
{
- XBT_IN("process = %p", this);
+ XBT_IN("actor = %p", this);
if (context_->iwannadie) {
XBT_VERB("Ignoring request to suspend an actor that is currently dying.");
XBT_OUT();
}
-smx_activity_t ActorImpl::sleep(double duration)
+activity::ActivityImplPtr ActorImpl::join(smx_actor_t actor, double timeout)
{
- if (host_->is_off())
- throw_exception(std::make_exception_ptr(simgrid::HostFailureException(
- XBT_THROW_POINT, std::string("Host ") + std::string(host_->get_cname()) + " failed, you cannot sleep there.")));
+ activity::ActivityImplPtr res = this->sleep(timeout);
+ intrusive_ptr_add_ref(res.get());
+ SIMIX_process_on_exit(actor,
+ [](int, void* arg) {
+ auto sleep = static_cast<simgrid::kernel::activity::SleepImpl*>(arg);
+ if (sleep->surf_action_)
+ sleep->surf_action_->finish(simgrid::kernel::resource::Action::State::FINISHED);
+ intrusive_ptr_release(sleep);
+ },
+ res.get());
+ return res;
+}
- simgrid::kernel::activity::SleepImpl* synchro = new simgrid::kernel::activity::SleepImpl();
- synchro->host = host_;
- synchro->surf_sleep = host_->pimpl_cpu->sleep(duration);
- synchro->surf_sleep->set_data(synchro);
- XBT_DEBUG("Create sleep synchronization %p", synchro);
+activity::ActivityImplPtr ActorImpl::sleep(double duration)
+{
+ if (not host_->is_on())
+ throw_exception(std::make_exception_ptr(simgrid::HostFailureException(
+ XBT_THROW_POINT, std::string("Host ") + host_->get_cname() + " failed, you cannot sleep there.")));
- return synchro;
+ return simgrid::kernel::activity::SleepImplPtr(new simgrid::kernel::activity::SleepImpl("sleep", host_))
+ ->start(duration);
}
void ActorImpl::throw_exception(std::exception_ptr e)
{
- exception = e;
+ exception_ = e;
if (suspended_)
resume();
/* cancel the blocking synchro if any */
if (waiting_synchro) {
- simgrid::kernel::activity::ExecImplPtr exec =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(waiting_synchro);
- if (exec != nullptr && exec->surf_action_)
- exec->surf_action_->cancel();
+ activity::ExecImplPtr exec = boost::dynamic_pointer_cast<activity::ExecImpl>(waiting_synchro);
+ if (exec != nullptr)
+ exec->cancel();
- simgrid::kernel::activity::CommImplPtr comm =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(waiting_synchro);
+ activity::CommImplPtr comm = boost::dynamic_pointer_cast<activity::CommImpl>(waiting_synchro);
if (comm != nullptr) {
comms.remove(comm);
comm->cancel();
}
- simgrid::kernel::activity::SleepImplPtr sleep =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(waiting_synchro);
+ activity::SleepImplPtr sleep = boost::dynamic_pointer_cast<activity::SleepImpl>(waiting_synchro);
if (sleep != nullptr) {
SIMIX_process_sleep_destroy(waiting_synchro);
- if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), this) ==
- end(simix_global->process_to_run) &&
+ if (std::find(begin(simix_global->actors_to_run), end(simix_global->actors_to_run), this) ==
+ end(simix_global->actors_to_run) &&
this != SIMIX_process_self()) {
- XBT_DEBUG("Inserting %s in the to_run list", get_cname());
- simix_global->process_to_run.push_back(this);
+ XBT_DEBUG("Inserting [%p] %s in the to_run list", this, get_cname());
+ simix_global->actors_to_run.push_back(this);
}
}
- simgrid::kernel::activity::RawImplPtr raw =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(waiting_synchro);
+ activity::RawImplPtr raw = boost::dynamic_pointer_cast<activity::RawImpl>(waiting_synchro);
if (raw != nullptr) {
- SIMIX_synchro_stop_waiting(this, &simcall);
+ raw->finish();
}
- simgrid::kernel::activity::IoImplPtr io =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(waiting_synchro);
+ activity::IoImplPtr io = boost::dynamic_pointer_cast<activity::IoImpl>(waiting_synchro);
if (io != nullptr) {
- delete io.get();
+ io->cancel();
}
}
waiting_synchro = nullptr;
}
-void create_maestro(simgrid::simix::ActorCode code)
+void ActorImpl::set_host(s4u::Host* dest)
{
- /* Create maestro process and initialize it */
- smx_actor_t maestro = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(""), /*host*/ nullptr);
-
- if (not code) {
- maestro->context_ = SIMIX_context_new(simgrid::simix::ActorCode(), nullptr, maestro);
- } else {
- if (not simix_global)
- xbt_die("simix is not initialized, please call MSG_init first");
- maestro->context_ = simix_global->context_factory->create_maestro(code, maestro);
- }
-
- maestro->simcall.issuer = maestro;
- simix_global->maestro_process = maestro;
+ simgrid::xbt::intrusive_erase(host_->pimpl_->process_list_, *this);
+ host_ = dest;
+ dest->pimpl_->process_list_.push_back(*this);
}
-} // namespace actor
-}
-}
-
-/** @brief Creates and runs the maestro process */
-void SIMIX_maestro_create(void (*code)(void*), void* data)
+ActorImplPtr ActorImpl::init(std::string name, s4u::Host* host)
{
- simgrid::kernel::actor::create_maestro(std::bind(code, data));
+ ActorImpl* actor = new ActorImpl(simgrid::xbt::string(name), host);
+ actor->set_ppid(this->pid_);
+
+ intrusive_ptr_add_ref(actor);
+ /* The on_creation() signal must be delayed until there, where the pid and everything is set */
+ s4u::Actor::on_creation(actor->iface());
+
+ return ActorImplPtr(actor);
}
-/**
- * @brief Internal function to create a process.
- *
- * This function actually creates the process.
- * It may be called when a SIMCALL_PROCESS_CREATE simcall occurs,
- * or directly for SIMIX internal purposes. The sure thing is that it's called from maestro context.
- *
- * @return the process created
- */
-smx_actor_t SIMIX_process_create(std::string name, simgrid::simix::ActorCode code, void* data, simgrid::s4u::Host* host,
- std::unordered_map<std::string, std::string>* properties, smx_actor_t parent_process)
+ActorImpl* ActorImpl::start(const simix::ActorCode& code)
{
+ xbt_assert(code && host_ != nullptr, "Invalid parameters");
- XBT_DEBUG("Start actor %s@'%s'", name.c_str(), host->get_cname());
-
- if (host->is_off()) {
- XBT_WARN("Cannot launch process '%s' on failed host '%s'", name.c_str(), host->get_cname());
- return nullptr;
+ if (not host_->is_on()) {
+ XBT_WARN("Cannot launch actor '%s' on failed host '%s'", name_.c_str(), host_->get_cname());
+ intrusive_ptr_release(this);
+ std::rethrow_exception(
+ std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Cannot start actor on failed host.")));
}
- smx_actor_t process = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(name), host);
-
- xbt_assert(code && host != nullptr, "Invalid parameters");
- /* Process data */
- process->set_user_data(data);
- process->code = code;
+ this->code = code;
+ XBT_VERB("Create context %s", get_cname());
+ context_.reset(simix_global->context_factory->create_context(simix::ActorCode(code), this));
- if (parent_process != nullptr)
- process->ppid_ = parent_process->pid_;
+ XBT_DEBUG("Start context '%s'", get_cname());
- XBT_VERB("Create context %s", process->get_cname());
- process->context_ = SIMIX_context_new(std::move(code), &SIMIX_process_cleanup, process);
+ /* Add the actor to its host's actor list */
+ host_->pimpl_->process_list_.push_back(*this);
+ simix_global->process_list[pid_] = this;
- /* Add properties */
- if (properties != nullptr)
- for (auto const& kv : *properties)
- process->set_property(kv.first, kv.second);
-
- /* Add the process to its host's process list */
- host->pimpl_->process_list_.push_back(*process);
-
- XBT_DEBUG("Start context '%s'", process->get_cname());
-
- /* Now insert it in the global process list and in the process to run list */
- simix_global->process_list[process->pid_] = process;
- XBT_DEBUG("Inserting %s(%s) in the to_run list", process->get_cname(), host->get_cname());
- simix_global->process_to_run.push_back(process);
- intrusive_ptr_add_ref(process);
-
- /* The onCreation() signal must be delayed until there, where the pid and everything is set */
- simgrid::s4u::ActorPtr tmp = process->iface(); // Passing this directly to onCreation will lead to crashes
- simgrid::s4u::Actor::on_creation(tmp);
+ /* Now insert it in the global actor list and in the actor to run list */
+ XBT_DEBUG("Inserting [%p] %s(%s) in the to_run list", this, get_cname(), host_->get_cname());
+ simix_global->actors_to_run.push_back(this);
- return process;
+ return this;
}
-smx_actor_t SIMIX_process_attach(const char* name, void* data, const char* hostname,
- std::unordered_map<std::string, std::string>* properties, smx_actor_t parent_process)
+ActorImplPtr ActorImpl::create(std::string name, const simix::ActorCode& code, void* data, s4u::Host* host,
+ std::unordered_map<std::string, std::string>* properties, ActorImpl* parent_actor)
{
- // 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);
+ XBT_DEBUG("Start actor %s@'%s'", name.c_str(), host->get_cname());
- if (host->is_off()) {
- XBT_WARN("Cannot launch process '%s' on failed host '%s'", name, hostname);
- return nullptr;
- }
+ ActorImplPtr actor;
+ if (parent_actor != nullptr)
+ actor = parent_actor->init(simgrid::xbt::string(name), host);
+ else
+ actor = SIMIX_process_self()->init(simgrid::xbt::string(name), host);
- smx_actor_t actor = new simgrid::kernel::actor::ActorImpl(simgrid::xbt::string(name), host);
- /* Actor data */
+ /* 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 %s(%s) in the to_run list", actor->get_cname(), host->get_cname());
- simix_global->process_to_run.push_back(actor);
- intrusive_ptr_add_ref(actor);
-
- auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(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);
+ actor->start(code);
return actor;
}
-void SIMIX_process_detach()
+void create_maestro(const std::function<void()>& code)
{
- auto* context = dynamic_cast<simgrid::kernel::context::AttachContext*>(simgrid::kernel::context::Context::self());
- if (context == nullptr)
- xbt_die("Not a suitable context");
+ /* Create maestro actor and initialize it */
+ ActorImpl* maestro = new ActorImpl(xbt::string(""), /*host*/ nullptr);
- SIMIX_process_cleanup(context->process());
- context->attach_stop();
-}
+ if (not code) {
+ maestro->context_.reset(simix_global->context_factory->create_context(simix::ActorCode(), maestro));
+ } else {
+ maestro->context_.reset(simix_global->context_factory->create_maestro(simix::ActorCode(code), maestro));
+ }
-/**
- * @brief Executes the processes from simix_global->process_to_run.
- *
- * The processes of simix_global->process_to_run are run (in parallel if
- * possible). On exit, simix_global->process_to_run is empty, and
- * simix_global->process_that_ran contains the list of processes that just ran.
- * The two lists are swapped so, be careful when using them before and after a
- * call to this function.
- */
-void SIMIX_process_runall()
-{
- SIMIX_context_runall();
+ maestro->simcall.issuer = maestro;
+ simix_global->maestro_process = maestro;
+}
- simix_global->process_to_run.swap(simix_global->process_that_ran);
- simix_global->process_to_run.clear();
+} // namespace actor
+} // namespace kernel
}
-/**
- * @brief Internal function to kill a SIMIX process.
- *
- * This function may be called when a SIMCALL_PROCESS_KILL simcall occurs,
- * or directly for SIMIX internal purposes.
- *
- * @param actor poor victim
- * @param issuer the actor which has sent the PROCESS_KILL. Important to not schedule twice the same actor.
- */
-void SIMIX_process_kill(smx_actor_t actor, smx_actor_t issuer)
+void SIMIX_process_detach()
{
+ simgrid::kernel::actor::ActorImpl::detach();
+}
- if (actor->finished_) {
- XBT_DEBUG("Ignoring request to kill process %s@%s that is already dead", actor->get_cname(),
- actor->host_->get_cname());
- return;
- }
-
- XBT_DEBUG("Actor '%s'@%s is killing actor '%s'@%s", issuer->get_cname(),
- (issuer->host_ == nullptr ? "(null)" : issuer->host_->get_cname()), actor->get_cname(),
- actor->host_->get_cname());
-
- actor->context_->iwannadie = true;
- actor->blocked_ = false;
- actor->suspended_ = false;
- actor->exception = nullptr;
-
- // Forcefully kill the actor if its host is turned off. Not an HostFailureException because you should not survive that
- if (actor->host_->is_off()) {
- /* HORRIBLE HACK: Don't throw an StopRequest exception in Java, because it breaks sometimes.
- *
- * It seems to break for the actors started from the Java world, with new Process()
- * while it works for the ones started from the C world, with the deployment file.
- * When it happens, the simulation stops brutally with a message "untrapped exception StopRequest".
- *
- * From what I understand, it works for the native actors because they have a nice try/catch block around their main
- * but I fail to have something like that for pure Java actors. That's probably a story of C->Java vs Java->C
- * calling conventions. The right solution may be to have try/catch(StopRequest) blocks around each native call in
- * JNI. ie, protect every Java->C++ call from C++ exceptions. But this sounds long and painful to do before we
- * switch to an automatic generator such as SWIG. For now, we don't throw here that exception that we sometimes fail
- * to catch.
- *
- * One of the unfortunate outcome is that the threads started from the deployment file are not stopped anymore.
- * Or maybe this is the actors stopping gracefully as opposed to the killed ones? Or maybe this is absolutely all
- * actors of the Java simulation? I'm not sure. Anyway. Because of them, the simulation hangs at the end, waiting
- * for them to stop but they won't. The current answer to that is very brutal:
- * we do a "exit(0)" to kill the JVM from the C code after the call to MSG_run(). Definitely unpleasant.
- */
-
- if (simgrid::kernel::context::factory_initializer == nullptr) // Only Java sets a factory_initializer, for now
- actor->throw_exception(std::make_exception_ptr(simgrid::kernel::context::Context::StopRequest("host failed")));
- }
-
- /* destroy the blocking synchro if any */
- if (actor->waiting_synchro != nullptr) {
-
- simgrid::kernel::activity::ExecImplPtr exec =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(actor->waiting_synchro);
- simgrid::kernel::activity::CommImplPtr comm =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(actor->waiting_synchro);
- simgrid::kernel::activity::SleepImplPtr sleep =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(actor->waiting_synchro);
- simgrid::kernel::activity::RawImplPtr raw =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(actor->waiting_synchro);
- simgrid::kernel::activity::IoImplPtr io =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(actor->waiting_synchro);
-
- if (exec != nullptr) {
- if (exec->surf_action_) {
- exec->surf_action_->cancel();
- exec->surf_action_->unref();
- exec->surf_action_ = nullptr;
- }
- } else if (comm != nullptr) {
- actor->comms.remove(actor->waiting_synchro);
- comm->cancel();
- // Remove first occurrence of &process->simcall:
- auto i = boost::range::find(actor->waiting_synchro->simcalls_, &actor->simcall);
- if (i != actor->waiting_synchro->simcalls_.end())
- actor->waiting_synchro->simcalls_.remove(&actor->simcall);
- } else if (sleep != nullptr) {
- if (sleep->surf_sleep)
- sleep->surf_sleep->cancel();
- sleep->post();
- } else if (raw != nullptr) {
- SIMIX_synchro_stop_waiting(actor, &actor->simcall);
-
- } else if (io != nullptr) {
- delete io.get();
- } else {
- simgrid::kernel::activity::ActivityImplPtr activity = actor->waiting_synchro;
- xbt_die("Activity %s is of unknown type %s", activity->name_.c_str(),
- simgrid::xbt::demangle(typeid(activity).name()).get());
- }
-
- actor->waiting_synchro = nullptr;
- }
- if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), actor) ==
- end(simix_global->process_to_run) &&
- actor != issuer) {
- XBT_DEBUG("Inserting %s in the to_run list", actor->get_cname());
- simix_global->process_to_run.push_back(actor);
- }
+smx_actor_t SIMIX_process_attach(const char* name, void* data, const char* hostname,
+ std::unordered_map<std::string, std::string>* properties,
+ smx_actor_t /*parent_process*/)
+{
+ 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
{
SMX_EXCEPTION(actor, cat, value, msg);
- if (actor->suspended_)
+ if (actor->is_suspended())
actor->resume();
/* cancel the blocking synchro if any */
simgrid::kernel::activity::ExecImplPtr exec =
boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(actor->waiting_synchro);
- if (exec != nullptr && exec->surf_action_)
- exec->surf_action_->cancel();
+ if (exec != nullptr)
+ exec->cancel();
simgrid::kernel::activity::CommImplPtr comm =
boost::dynamic_pointer_cast<simgrid::kernel::activity::CommImpl>(actor->waiting_synchro);
boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(actor->waiting_synchro);
if (sleep != nullptr) {
SIMIX_process_sleep_destroy(actor->waiting_synchro);
- if (std::find(begin(simix_global->process_to_run), end(simix_global->process_to_run), actor) ==
- end(simix_global->process_to_run) &&
+ if (std::find(begin(simix_global->actors_to_run), end(simix_global->actors_to_run), actor) ==
+ end(simix_global->actors_to_run) &&
actor != SIMIX_process_self()) {
- XBT_DEBUG("Inserting %s in the to_run list", actor->get_cname());
- simix_global->process_to_run.push_back(actor);
+ XBT_DEBUG("Inserting [%p] %s in the to_run list", actor, actor->get_cname());
+ simix_global->actors_to_run.push_back(actor);
}
}
simgrid::kernel::activity::RawImplPtr raw =
boost::dynamic_pointer_cast<simgrid::kernel::activity::RawImpl>(actor->waiting_synchro);
if (raw != nullptr) {
- SIMIX_synchro_stop_waiting(actor, &actor->simcall);
+ raw->finish();
}
simgrid::kernel::activity::IoImplPtr io =
boost::dynamic_pointer_cast<simgrid::kernel::activity::IoImpl>(actor->waiting_synchro);
if (io != nullptr) {
- delete io.get();
+ io->cancel();
}
}
actor->waiting_synchro = nullptr;
}
-/**
- * @brief Kills all running processes.
- * @param issuer this one will not be killed
- */
-void SIMIX_process_killall(smx_actor_t issuer)
-{
- for (auto const& kv : simix_global->process_list)
- if (kv.second != issuer)
- SIMIX_process_kill(kv.second, issuer);
-}
-
-void SIMIX_process_change_host(smx_actor_t actor, sg_host_t dest)
-{
- xbt_assert((actor != nullptr), "Invalid parameters");
- simgrid::xbt::intrusive_erase(actor->host_->pimpl_->process_list_, *actor);
- actor->host_ = dest;
- dest->pimpl_->process_list_.push_back(*actor);
-}
-
void simcall_HANDLER_process_suspend(smx_simcall_t simcall, smx_actor_t actor)
{
smx_activity_t sync_suspend = actor->suspend(simcall->issuer);
return simix_global->process_list.size();
}
-void* SIMIX_process_self_get_data()
+void* SIMIX_process_self_get_data() // deprecated
{
smx_actor_t self = SIMIX_process_self();
return self->get_user_data();
}
-void SIMIX_process_self_set_data(void *data)
+void SIMIX_process_self_set_data(void* data) // deprecated
{
SIMIX_process_self()->set_user_data(data);
}
SIMIX_simcall_answer(simcall);
return;
}
- smx_activity_t sync = SIMIX_process_join(simcall->issuer, process, timeout);
+ smx_activity_t sync = simcall->issuer->join(process, timeout);
sync->simcalls_.push_back(simcall);
simcall->issuer->waiting_synchro = sync;
}
-smx_activity_t SIMIX_process_join(smx_actor_t issuer, smx_actor_t process, double timeout)
-{
- smx_activity_t res = issuer->sleep(timeout);
- intrusive_ptr_add_ref(res.get());
- SIMIX_process_on_exit(process,
- [](int, void* arg) {
- auto sleep = static_cast<simgrid::kernel::activity::SleepImpl*>(arg);
- if (sleep->surf_sleep)
- sleep->surf_sleep->finish(simgrid::kernel::resource::Action::State::FINISHED);
- intrusive_ptr_release(sleep);
- },
- res.get());
- return res;
-}
-
void simcall_HANDLER_process_sleep(smx_simcall_t simcall, double duration)
{
if (MC_is_active() || MC_record_replay_is_active()) {
{
XBT_DEBUG("Destroy sleep synchro %p", synchro.get());
simgrid::kernel::activity::SleepImplPtr sleep =
- boost::dynamic_pointer_cast<simgrid::kernel::activity::SleepImpl>(synchro);
+ boost::static_pointer_cast<simgrid::kernel::activity::SleepImpl>(synchro);
- if (sleep->surf_sleep) {
- sleep->surf_sleep->unref();
- sleep->surf_sleep = nullptr;
+ if (sleep->surf_action_) {
+ sleep->surf_action_->unref();
+ sleep->surf_action_ = nullptr;
}
}
*
* @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("I wanna die!");
- self->finished_ = true;
- /* execute the on_exit functions */
- SIMIX_process_on_exit_runall(self);
-
- if (self->auto_restart_ && self->host_->is_off() &&
- watched_hosts.find(self->host_->get_cname()) == watched_hosts.end()) {
- XBT_DEBUG("Push host %s to watched_hosts because it's off and %s needs to restart", self->host_->get_cname(),
- self->get_cname());
- watched_hosts.insert(self->host_->get_cname());
- }
-
- XBT_DEBUG("Process %s@%s is dead", self->get_cname(), self->host_->get_cname());
- self->context_->stop();
- xbt_backtrace_display_current();
- xbt_die("I should be dead by now.");
- }
- 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. */
+/** @brief Returns the list of processes to run.
+ * @deprecated
+ */
const std::vector<smx_actor_t>& simgrid::simix::process_get_runnable()
{
- return simix_global->process_to_run;
+ return simix_global->actors_to_run;
}
/** @brief Returns the process from PID. */
return actor == simix_global->process_list.end() ? nullptr : actor->second;
}
-void SIMIX_process_on_exit_runall(smx_actor_t actor)
-{
- simgrid::s4u::Actor::on_destruction(actor->iface());
- smx_process_exit_status_t exit_status = (actor->context_->iwannadie) ? SMX_EXIT_FAILURE : SMX_EXIT_SUCCESS;
- while (not actor->on_exit.empty()) {
- s_smx_process_exit_fun_t exit_fun = actor->on_exit.back();
- actor->on_exit.pop_back();
- (exit_fun.fun)(exit_status, exit_fun.arg);
- }
-}
-
void SIMIX_process_on_exit(smx_actor_t actor, int_f_pvoid_pvoid_t fun, void* data)
{
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<void(int, void*)> fun, void* data)
+void SIMIX_process_on_exit(smx_actor_t actor, const std::function<void(bool, void*)>& fun, void* data)
{
xbt_assert(actor, "current process not found: are you in maestro context ?");
{
smx_actor_t self = SIMIX_process_self();
return simgrid::simix::simcall([name, code, data, host, properties, self] {
- return SIMIX_process_create(name, std::move(code), data, host, properties, self);
+ return simgrid::kernel::actor::ActorImpl::create(std::move(name), std::move(code), data, host, properties, self)
+ .get();
});
}
+
+void simcall_process_set_data(smx_actor_t process, void* data)
+{
+ simgrid::simix::simcall([process, data] { process->set_user_data(data); });
+}
