-/* Copyright (c) 2007-2020. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2021. 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 "src/kernel/activity/SleepImpl.hpp"
#include "src/kernel/activity/SynchroRaw.hpp"
#include "src/mc/mc_replay.hpp"
-#include "src/mc/remote/Client.hpp"
+#include "src/mc/remote/AppSide.hpp"
#include "src/simix/smx_private.hpp"
#include "src/surf/HostImpl.hpp"
#include "src/surf/cpu_interface.hpp"
-#include <boost/range/algorithm.hpp>
+#include <boost/core/demangle.hpp>
+#include <typeinfo>
#include <utility>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_process, simix, "Logging specific to SIMIX (process)");
namespace actor {
static unsigned long maxpid = 0;
-int get_maxpid()
+unsigned long get_maxpid()
{
return maxpid;
}
+unsigned long* get_maxpid_addr()
+{
+ return &maxpid;
+}
+ActorImpl* ActorImpl::by_pid(aid_t pid)
+{
+ auto item = simix_global->process_list.find(pid);
+ if (item != simix_global->process_list.end())
+ return item->second;
+
+ // Search the trash
+ for (auto& a : simix_global->actors_to_destroy)
+ if (a.get_pid() == pid)
+ return &a;
+ return nullptr; // Not found, even in the trash
+}
ActorImpl* ActorImpl::self()
{
- context::Context* self_context = context::Context::self();
+ const context::Context* self_context = context::Context::self();
return (self_context != nullptr) ? self_context->get_actor() : nullptr;
}
ActorImpl::ActorImpl(xbt::string name, s4u::Host* host) : host_(host), name_(std::move(name)), piface_(this)
{
- pid_ = maxpid++;
- simcall.issuer_ = this;
+ pid_ = maxpid++;
+ simcall_.issuer_ = this;
+ stacksize_ = smx_context_stack_size;
}
ActorImpl::~ActorImpl()
{
if (simix_global != nullptr && this != simix_global->maestro_)
- s4u::Actor::on_destruction(*ciface());
+ s4u::Actor::on_destruction(*get_ciface());
}
/* Become an actor in the simulation
* In the future, it might be extended in order to attach other threads created by a third party library.
*/
-ActorImplPtr ActorImpl::attach(const std::string& name, void* data, s4u::Host* host,
- const std::unordered_map<std::string, std::string>* properties)
+ActorImplPtr ActorImpl::attach(const std::string& name, void* data, s4u::Host* host)
{
// This is mostly a copy/paste from create(), it'd be nice to share some code between those two functions.
throw HostFailureException(XBT_THROW_POINT, "Cannot attach actor on failed host.");
}
- ActorImpl* actor = new ActorImpl(xbt::string(name), host);
+ auto* actor = new ActorImpl(xbt::string(name), host);
/* Actor data */
actor->set_user_data(data);
actor->code_ = nullptr;
xbt_assert(simix_global != nullptr, "simix is not initialized, please call MSG_init first");
actor->context_.reset(simix_global->context_factory->attach(actor));
- /* Add properties */
- if (properties != nullptr)
- actor->set_properties(*properties);
-
/* Add the actor to it's host actor list */
- host->pimpl_->add_actor(actor);
+ host->get_impl()->add_actor(actor);
/* Now insert it in the global actor list and in the actors to run list */
simix_global->process_list[actor->get_pid()] = actor;
context->attach_start();
/* The on_creation() signal must be delayed until there, where the pid and everything is set */
- s4u::Actor::on_creation(*actor->ciface());
+ s4u::Actor::on_creation(*actor->get_ciface());
return ActorImplPtr(actor);
}
void ActorImpl::detach()
{
auto* context = dynamic_cast<context::AttachContext*>(context::Context::self());
- if (context == nullptr)
- xbt_die("Not a suitable context");
+ xbt_assert(context != nullptr, "Not a suitable context");
context->get_actor()->cleanup();
context->attach_stop();
const std::lock_guard<std::mutex> lock(simix_global->mutex);
simix_global->process_list.erase(pid_);
if (host_ && host_actor_list_hook.is_linked())
- host_->pimpl_->remove_actor(this);
+ host_->get_impl()->remove_actor(this);
if (not smx_destroy_list_hook.is_linked()) {
#if SIMGRID_HAVE_MC
xbt_dynar_push_as(simix_global->dead_actors_vector, ActorImpl*, this);
if (has_to_auto_restart() && not get_host()->is_on()) {
XBT_DEBUG("Insert host %s to watched_hosts because it's off and %s needs to restart", get_host()->get_cname(),
get_cname());
- watched_hosts.insert(get_host()->get_name());
+ watched_hosts().insert(get_host()->get_name());
}
if (on_exit) {
// Execute the termination callbacks
- bool failed = context_->iwannadie;
+ bool failed = context_->wannadie();
for (auto exit_fun = on_exit->crbegin(); exit_fun != on_exit->crend(); ++exit_fun)
(*exit_fun)(failed);
on_exit.reset();
undaemonize();
/* cancel non-blocking activities */
- for (auto activity : comms)
- boost::static_pointer_cast<activity::CommImpl>(activity)->cancel();
- comms.clear();
+ for (auto activity : activities_)
+ activity->cancel();
+ activities_.clear();
XBT_DEBUG("%s@%s(%ld) should not run anymore", get_cname(), get_host()->get_cname(), get_pid());
if (this == simix_global->maestro_) /* Do not cleanup maestro */
return;
- XBT_DEBUG("Cleanup actor %s (%p), waiting synchro %p", get_cname(), this, waiting_synchro.get());
+ XBT_DEBUG("Cleanup actor %s (%p), waiting synchro %p", get_cname(), this, waiting_synchro_.get());
- /* Unregister from the kill timer if any */
- if (kill_timer != nullptr) {
- kill_timer->remove();
- kill_timer = nullptr;
+ /* Unregister associated timers if any */
+ if (kill_timer_ != nullptr) {
+ kill_timer_->remove();
+ kill_timer_ = nullptr;
+ }
+ if (simcall_.timeout_cb_) {
+ simcall_.timeout_cb_->remove();
+ simcall_.timeout_cb_ = nullptr;
}
+
cleanup_from_simix();
- context_->iwannadie = false; // don't let the simcall's yield() do a Context::stop(), to avoid infinite loops
- actor::simcall([this] { s4u::Actor::on_termination(*ciface()); });
- context_->iwannadie = true;
+ context_->set_wannadie(false); // don't let the simcall's yield() do a Context::stop(), to avoid infinite loops
+ actor::simcall([this] { s4u::Actor::on_termination(*get_ciface()); });
+ context_->set_wannadie();
}
void ActorImpl::exit()
{
- context_->iwannadie = true;
+ context_->set_wannadie();
suspended_ = false;
exception_ = nullptr;
/* destroy the blocking synchro if any */
- if (waiting_synchro != nullptr) {
- waiting_synchro->cancel();
- waiting_synchro->state_ = activity::State::FAILED;
+ if (waiting_synchro_ != nullptr) {
+ waiting_synchro_->cancel();
+ waiting_synchro_->state_ = activity::State::FAILED;
- activity::ExecImplPtr exec = boost::dynamic_pointer_cast<activity::ExecImpl>(waiting_synchro);
- activity::CommImplPtr comm = boost::dynamic_pointer_cast<activity::CommImpl>(waiting_synchro);
+ activity::ExecImplPtr exec = boost::dynamic_pointer_cast<activity::ExecImpl>(waiting_synchro_);
+ activity::CommImplPtr comm = boost::dynamic_pointer_cast<activity::CommImpl>(waiting_synchro_);
if (exec != nullptr) {
exec->clean_action();
} else if (comm != nullptr) {
- comms.remove(waiting_synchro);
- // 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);
+ comm->unregister_simcall(&simcall_);
} else {
- activity::ActivityImplPtr(waiting_synchro)->finish();
+ activity::ActivityImplPtr(waiting_synchro_)->finish();
}
- waiting_synchro = nullptr;
+ activities_.remove(waiting_synchro_);
+ waiting_synchro_ = nullptr;
}
+ for (auto const& activity : activities_)
+ activity->cancel();
+ activities_.clear();
// Forcefully kill the actor if its host is turned off. Not a HostFailureException because you should not survive that
this->throw_exception(std::make_exception_ptr(ForcefulKillException(host_->is_on() ? "exited" : "host failed")));
}
-void ActorImpl::kill(ActorImpl* actor)
+void ActorImpl::kill(ActorImpl* actor) const
{
xbt_assert(actor != simix_global->maestro_, "Killing maestro is a rather bad idea");
if (actor->finished_) {
actor->exit();
- if (std::find(begin(simix_global->actors_to_run), end(simix_global->actors_to_run), actor) ==
- end(simix_global->actors_to_run) &&
- actor != this) {
+ if (actor == this) {
+ XBT_DEBUG("Go on, this is a suicide,");
+ } else if (std::find(begin(simix_global->actors_to_run), end(simix_global->actors_to_run), actor) !=
+ end(simix_global->actors_to_run)) {
+ XBT_DEBUG("Actor %s is already in the to_run list", actor->get_cname());
+ } else {
XBT_DEBUG("Inserting %s in the to_run list", actor->get_cname());
simix_global->actors_to_run.push_back(actor);
}
}
-void ActorImpl::kill_all()
+void ActorImpl::kill_all() const
{
for (auto const& kv : simix_global->process_list)
if (kv.second != this)
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] {
+ kill_timer_ = simix::Timer::set(kill_time, [this] {
this->exit();
- kill_timer = nullptr;
+ kill_timer_ = nullptr;
});
}
-double ActorImpl::get_kill_time()
+double ActorImpl::get_kill_time() const
{
- return kill_timer ? kill_timer->get_date() : 0;
+ return kill_timer_ ? kill_timer_->date : 0.0;
}
void ActorImpl::yield()
/* Ok, maestro returned control to us */
XBT_DEBUG("Control returned to me: '%s'", get_cname());
- if (context_->iwannadie) {
+ if (context_->wannadie()) {
XBT_DEBUG("Actor %s@%s is dead", get_cname(), host_->get_cname());
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();
+ yield(); // Yield back to maestro without proceeding with my execution. I'll get rescheduled by resume()
}
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));
+ try {
+ std::rethrow_exception(std::move(exception));
+ } catch (const simgrid::Exception& e) {
+ e.rethrow_nested(XBT_THROW_POINT, boost::core::demangle(typeid(e).name()) + " raised in kernel mode.");
+ }
}
if (SMPI_switch_data_segment && not finished_) {
- SMPI_switch_data_segment(iface());
+ SMPI_switch_data_segment(get_iface());
}
}
XBT_DEBUG("Restarting actor %s on %s", get_cname(), host_->get_cname());
// retrieve the arguments of the old actor
- ProcessArg arg = ProcessArg(host_, this);
+ ProcessArg arg(host_, this);
// kill the old actor
context::Context::self()->get_actor()->kill(this);
// start the new actor
- ActorImplPtr actor =
- ActorImpl::create(arg.name, std::move(arg.code), arg.data, arg.host, arg.properties.get(), nullptr);
+ ActorImplPtr actor = ActorImpl::create(arg.name, arg.code, arg.data, arg.host, nullptr);
+ actor->set_properties(arg.properties);
*actor->on_exit = std::move(*arg.on_exit);
actor->set_kill_time(arg.kill_time);
actor->set_auto_restart(arg.auto_restart);
- return actor->ciface();
+ return actor->get_ciface();
}
void ActorImpl::suspend()
suspended_ = true;
- /* If the suspended actor is waiting on a sync, suspend its synchronization. */
- if (waiting_synchro == nullptr) {
- auto exec = new activity::ExecImpl();
- exec->set_name("suspend").set_host(host_).set_flops_amount(0.0).start();
- waiting_synchro = activity::ExecImplPtr(exec);
-
- waiting_synchro->simcalls_.push_back(&simcall);
- }
- waiting_synchro->suspend();
+ /* Suspend the activities associated with this actor. */
+ for (auto const& activity : activities_)
+ activity->suspend();
}
void ActorImpl::resume()
{
XBT_IN("actor = %p", this);
- if (context_->iwannadie) {
+ if (context_->wannadie()) {
XBT_VERB("Ignoring request to suspend an actor that is currently dying.");
return;
}
return;
suspended_ = false;
- /* resume the synchronization that was blocking the resumed actor. */
- if (waiting_synchro)
- waiting_synchro->resume();
+ /* resume the activities that were blocked when suspending the actor. */
+ for (auto const& activity : activities_)
+ activity->resume();
+ if (not waiting_synchro_) // Reschedule the actor if it was forcefully unscheduled in yield()
+ simix_global->actors_to_run.push_back(this);
XBT_OUT();
}
resume();
/* cancel the blocking synchro if any */
- if (waiting_synchro) {
- waiting_synchro->cancel();
-
- activity::CommImplPtr comm = boost::dynamic_pointer_cast<activity::CommImpl>(waiting_synchro);
-
- if (comm != nullptr)
- comms.remove(comm);
-
- waiting_synchro = nullptr;
+ if (waiting_synchro_) {
+ waiting_synchro_->cancel();
+ activities_.remove(waiting_synchro_);
+ waiting_synchro_ = nullptr;
}
}
void ActorImpl::simcall_answer()
{
if (this != simix_global->maestro_) {
- XBT_DEBUG("Answer simcall %s (%d) issued by %s (%p)", SIMIX_simcall_name(simcall.call_), (int)simcall.call_,
- get_cname(), this);
- simcall.call_ = SIMCALL_NONE;
+ XBT_DEBUG("Answer simcall %s issued by %s (%p)", SIMIX_simcall_name(simcall_), get_cname(), this);
+ xbt_assert(simcall_.call_ != simix::Simcall::NONE);
+ simcall_.call_ = simix::Simcall::NONE;
xbt_assert(not XBT_LOG_ISENABLED(simix_process, xbt_log_priority_debug) ||
std::find(begin(simix_global->actors_to_run), end(simix_global->actors_to_run), this) ==
end(simix_global->actors_to_run),
void ActorImpl::set_host(s4u::Host* dest)
{
- host_->pimpl_->remove_actor(this);
+ host_->get_impl()->remove_actor(this);
host_ = dest;
- dest->pimpl_->add_actor(this);
+ dest->get_impl()->add_actor(this);
}
-ActorImplPtr ActorImpl::init(const std::string& name, s4u::Host* host)
+ActorImplPtr ActorImpl::init(const std::string& name, s4u::Host* host) const
{
- ActorImpl* actor = new ActorImpl(xbt::string(name), host);
+ auto* actor = new ActorImpl(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->ciface());
+ s4u::Actor::on_creation(*actor->get_ciface());
return ActorImplPtr(actor);
}
-ActorImpl* ActorImpl::start(const simix::ActorCode& code)
+ActorImpl* ActorImpl::start(const ActorCode& code)
{
xbt_assert(code && host_ != nullptr, "Invalid parameters");
this->code_ = code;
XBT_VERB("Create context %s", get_cname());
- context_.reset(simix_global->context_factory->create_context(simix::ActorCode(code), this));
+ context_.reset(simix_global->context_factory->create_context(ActorCode(code), this));
XBT_DEBUG("Start context '%s'", get_cname());
/* Add the actor to its host's actor list */
- host_->pimpl_->add_actor(this);
+ host_->get_impl()->add_actor(this);
simix_global->process_list[pid_] = this;
/* Now insert it in the global actor list and in the actor to run list */
return this;
}
-ActorImplPtr ActorImpl::create(const std::string& name, const simix::ActorCode& code, void* data, s4u::Host* host,
- const std::unordered_map<std::string, std::string>* properties, ActorImpl* parent_actor)
+ActorImplPtr ActorImpl::create(const std::string& name, const ActorCode& code, void* data, s4u::Host* host,
+ const ActorImpl* parent_actor)
{
XBT_DEBUG("Start actor %s@'%s'", name.c_str(), host->get_cname());
/* actor data */
actor->set_user_data(data);
- /* Add properties */
- if (properties != nullptr)
- actor->set_properties(*properties);
-
actor->start(code);
return actor;
void create_maestro(const std::function<void()>& code)
{
/* Create maestro actor and initialize it */
- ActorImpl* maestro = new ActorImpl(xbt::string(""), /*host*/ nullptr);
+ auto* maestro = new ActorImpl(xbt::string(""), /*host*/ nullptr);
if (not code) {
- maestro->context_.reset(simix_global->context_factory->create_context(simix::ActorCode(), maestro));
+ maestro->context_.reset(simix_global->context_factory->create_context(ActorCode(), maestro));
} else {
- maestro->context_.reset(simix_global->context_factory->create_maestro(simix::ActorCode(code), maestro));
+ maestro->context_.reset(simix_global->context_factory->create_maestro(ActorCode(code), maestro));
}
- maestro->simcall.issuer_ = maestro;
+ maestro->simcall_.issuer_ = maestro;
simix_global->maestro_ = maestro;
}
return simix_global->process_list.size();
}
-// XBT_DEPRECATED_v329
-void* SIMIX_process_self_get_data()
+void* SIMIX_process_self_get_data() // XBT_ATTRIB_DEPRECATED_v329
{
smx_actor_t self = simgrid::kernel::actor::ActorImpl::self();
return self->get_user_data();
}
-// XBT_DEPRECATED_v329
-void SIMIX_process_self_set_data(void* data)
+void SIMIX_process_self_set_data(void* data) // XBT_ATTRIB_DEPRECATED_v329
{
simgrid::kernel::actor::ActorImpl::self()->set_user_data(data);
}
return SIMIX_is_maestro() ? "maestro" : simgrid::kernel::actor::ActorImpl::self()->get_cname();
}
-/**
- * @brief Calling this function makes the process to yield.
- *
- * Only the current process can call this function, giving back the control to maestro.
- *
- * @param self the current process
- */
-
/** @brief Returns the process from PID. */
-smx_actor_t SIMIX_process_from_PID(aid_t PID)
-{
- auto item = simix_global->process_list.find(PID);
- if (item == simix_global->process_list.end()) {
- for (auto& a : simix_global->actors_to_destroy)
- if (a.get_pid() == PID)
- return &a;
- return nullptr; // Not found, even in the trash
- }
- return item->second;
+smx_actor_t SIMIX_process_from_PID(aid_t pid)
+{
+ return simgrid::kernel::actor::ActorImpl::by_pid(pid);
}
void SIMIX_process_on_exit(smx_actor_t actor,
actor->on_exit->emplace_back(fun);
}
-/** @brief Restart a process, starting it again from the beginning. */
-/**
- * @ingroup simix_process_management
- * @brief Creates and runs a new SIMIX process.
- *
- * The structure and the corresponding thread are created and put in the list of ready processes.
- *
- * @param name a name for the process. It is for user-level information and can be nullptr.
- * @param code the main function of the process
- * @param data a pointer to any data one may want to attach to the new object. It is for user-level information and can
- * be nullptr.
- * It can be retrieved with the method ActorImpl::getUserData().
- * @param host where the new agent is executed.
- * @param properties the properties of the process
- */
-smx_actor_t simcall_process_create(const std::string& name, const simgrid::simix::ActorCode& code, void* data,
- sg_host_t host, std::unordered_map<std::string, std::string>* properties)
-{
- smx_actor_t self = simgrid::kernel::actor::ActorImpl::self();
- return simgrid::kernel::actor::simcall([&name, &code, data, host, properties, self] {
- return simgrid::kernel::actor::ActorImpl::create(name, code, data, host, properties, self).get();
- });
-}
-
-void simcall_process_set_data(smx_actor_t process, void* data)
+void simcall_process_set_data(smx_actor_t process, void* data) // XBT_ATTRIB_DEPRECATED_v329
{
simgrid::kernel::actor::simcall([process, data] { process->set_user_data(data); });
}