#include "src/surf/cpu_interface.hpp"
#include <boost/range/algorithm.hpp>
+#include <utility>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_process, simix, "Logging specific to SIMIX (process)");
-static unsigned long simix_process_maxpid = 0;
-
/**
* @brief Returns the current agent.
*
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;
-}
-
namespace simgrid {
namespace kernel {
namespace actor {
-ActorImpl::ActorImpl(const simgrid::xbt::string& name, s4u::Host* host) : host_(host), name_(name), piface_(this)
+static unsigned long maxpid = 0;
+int get_maxpid()
+{
+ return maxpid;
+}
+
+ActorImpl::ActorImpl(simgrid::xbt::string name, s4u::Host* host) : host_(host), name_(std::move(name)), piface_(this)
{
- pid_ = simix_process_maxpid++;
- simcall.issuer = this;
+ pid_ = maxpid++;
+ simcall.issuer_ = this;
}
-ActorImpl::~ActorImpl() = default;
+ActorImpl::~ActorImpl()
+{
+ if (simix_global != nullptr && this != simix_global->maestro_process) {
+ if (context_.get() != nullptr) /* the actor was not start()ed yet. This happens if its host was initially off */
+ context_->iwannadie = false; // don't let the simcall's yield() do a Context::stop(), to avoid infinite loops
+ simgrid::kernel::actor::simcall([this] { simgrid::s4u::Actor::on_destruction(*ciface()); });
+ if (context_.get() != nullptr)
+ context_->iwannadie = true;
+ }
+}
/* Become an actor in the simulation
*
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.")));
+ throw 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;
+ 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");
/* Add properties */
if (properties != nullptr)
- for (auto const& kv : *properties)
- actor->set_property(kv.first, kv.second);
+ actor->set_properties(*properties);
/* Add the process to it's host process list */
host->pimpl_->process_list_.push_back(*actor);
watched_hosts.insert(get_host()->get_name());
}
- // Execute the termination callbacks
- bool failed = context_->iwannadie;
- while (not on_exit.empty()) {
- auto exit_fun = on_exit.back();
- on_exit.pop_back();
- exit_fun(failed);
+ if (on_exit) {
+ // Execute the termination callbacks
+ bool failed = context_->iwannadie;
+ 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)
simix_global->mutex.unlock();
context_->iwannadie = false; // don't let the simcall's yield() do a Context::stop(), to avoid infinite loops
- simgrid::simix::simcall([this] { simgrid::s4u::Actor::on_destruction(*ciface()); });
+ simgrid::kernel::actor::simcall([this] { simgrid::s4u::Actor::on_termination(*ciface()); });
context_->iwannadie = true;
}
void ActorImpl::exit()
{
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) {
waiting_synchro->cancel();
waiting_synchro = nullptr;
}
+
+ // 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)
xbt_assert(exception_ == nullptr, "Gasp! This exception may be lost by subsequent calls.");
suspended_ = false;
- suspend(this);
+ suspend();
}
if (exception_ != nullptr) {
if (not daemon_) {
daemon_ = true;
simix_global->daemons.push_back(this);
- SIMIX_process_on_exit(this, [this](bool) {
- auto& vect = simix_global->daemons;
- auto it = std::find(vect.begin(), vect.end(), this);
- xbt_assert(it != vect.end(), "The dying daemon is not a daemon after all. Please report that bug.");
-
- /* Don't move the whole content since we don't really care about the order */
- std::swap(*it, vect.back());
- vect.pop_back();
- });
+ }
+}
+
+void ActorImpl::undaemonize()
+{
+ if (daemon_) {
+ auto& vect = simix_global->daemons;
+ auto it = std::find(vect.begin(), vect.end(), this);
+ xbt_assert(it != vect.end(), "The dying daemon is not a daemon after all. Please report that bug.");
+ /* Don't move the whole content since we don't really care about the order */
+
+ std::swap(*it, vect.back());
+ vect.pop_back();
+ daemon_ = false;
}
}
// start the new actor
ActorImplPtr actor =
ActorImpl::create(arg.name, std::move(arg.code), arg.data, arg.host, arg.properties.get(), nullptr);
+ *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();
}
-activity::ActivityImplPtr ActorImpl::suspend(ActorImpl* issuer)
+void ActorImpl::suspend()
{
if (suspended_) {
XBT_DEBUG("Actor '%s' is already suspended", get_cname());
- return nullptr;
+ return;
}
suspended_ = true;
- /* If we are suspending another actor that is waiting on a sync, suspend its synchronization. */
- if (this != issuer) {
- if (waiting_synchro)
- waiting_synchro->suspend();
- /* If the other actor is not waiting, its suspension is delayed to when the actor is rescheduled. */
+ /* 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);
- return nullptr;
- } else {
- activity::ExecImpl* exec = new activity::ExecImpl();
- (*exec).set_name("suspend").set_host(host_).set_flops_amount(0.0).start();
- return activity::ExecImplPtr(exec);
+ waiting_synchro->simcalls_.push_back(&simcall);
}
+ waiting_synchro->suspend();
}
void ActorImpl::resume()
throw_exception(std::make_exception_ptr(simgrid::HostFailureException(
XBT_THROW_POINT, std::string("Host ") + host_->get_cname() + " failed, you cannot sleep there.")));
- activity::SleepImpl* sleep = new activity::SleepImpl();
- (*sleep).set_name("sleep").set_host(host_).set_duration(duration).start();
+ auto sleep = new activity::SleepImpl();
+ sleep->set_name("sleep").set_host(host_).set_duration(duration).start();
return activity::SleepImplPtr(sleep);
}
}
}
+void ActorImpl::simcall_answer()
+{
+ if (this != simix_global->maestro_process){
+ 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_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),
+ "Actor %p should not exist in actors_to_run!", this);
+ simix_global->actors_to_run.push_back(this);
+ }
+}
+
void ActorImpl::set_host(s4u::Host* dest)
{
xbt::intrusive_erase(host_->pimpl_->process_list_, *this);
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.")));
+ throw simgrid::HostFailureException(XBT_THROW_POINT, "Cannot start actor on failed host.");
}
- this->code = code;
+ this->code_ = code;
XBT_VERB("Create context %s", get_cname());
context_.reset(simix_global->context_factory->create_context(simix::ActorCode(code), this));
/* Add properties */
if (properties != nullptr)
- for (auto const& kv : *properties)
- actor->set_property(kv.first, kv.second);
+ actor->set_properties(*properties);
actor->start(code);
maestro->context_.reset(simix_global->context_factory->create_maestro(simix::ActorCode(code), maestro));
}
- maestro->simcall.issuer = maestro;
+ maestro->simcall.issuer_ = maestro;
simix_global->maestro_process = maestro;
}
} // namespace kernel
} // namespace simgrid
-void SIMIX_process_detach()
-{
- simgrid::kernel::actor::ActorImpl::detach();
-}
-
-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
- * transition */
-void SIMIX_process_throw(smx_actor_t actor, xbt_errcat_t cat, int value, const char* msg)
-{
- xbt_ex e(XBT_THROW_POINT, msg);
- e.category = cat;
- e.value = value;
- actor->throw_exception(std::make_exception_ptr(e));
-}
-
-void simcall_HANDLER_process_suspend(smx_simcall_t simcall, smx_actor_t actor)
-{
- smx_activity_t sync_suspend = actor->suspend(simcall->issuer);
-
- if (actor != simcall->issuer) {
- SIMIX_simcall_answer(simcall);
- } else {
- sync_suspend->simcalls_.push_back(simcall);
- actor->waiting_synchro = sync_suspend;
- actor->waiting_synchro->suspend();
- }
- /* If we are suspending ourselves, then just do not finish the simcall now */
-}
-
-int SIMIX_process_get_maxpid()
-{
- return simix_process_maxpid;
-}
-
int SIMIX_process_count()
{
return simix_global->process_list.size();
}
-void* SIMIX_process_self_get_data() // deprecated
+void* SIMIX_process_self_get_data()
{
smx_actor_t self = SIMIX_process_self();
return self->get_user_data();
}
-void SIMIX_process_self_set_data(void* data) // deprecated
+void SIMIX_process_self_set_data(void* data)
{
SIMIX_process_self()->set_user_data(data);
}
return process->get_cname();
}
-void simcall_HANDLER_process_join(smx_simcall_t simcall, smx_actor_t process, double timeout)
-{
- if (process->finished_) {
- // The joined process is already finished, just wake up the issuer process right away
- simcall_process_sleep__set__result(simcall, SIMIX_DONE);
- SIMIX_simcall_answer(simcall);
- return;
- }
- smx_activity_t sync = simcall->issuer->join(process, timeout);
- sync->simcalls_.push_back(simcall);
- simcall->issuer->waiting_synchro = sync;
-}
-
-void simcall_HANDLER_process_sleep(smx_simcall_t simcall, double duration)
-{
- if (MC_is_active() || MC_record_replay_is_active()) {
- MC_process_clock_add(simcall->issuer, duration);
- simcall_process_sleep__set__result(simcall, SIMIX_DONE);
- SIMIX_simcall_answer(simcall);
- return;
- }
- smx_activity_t sync = simcall->issuer->sleep(duration);
- sync->simcalls_.push_back(simcall);
- simcall->issuer->waiting_synchro = sync;
-}
-
/**
* @brief Calling this function makes the process to yield.
*
* @param self the current process
*/
-/** @brief Returns the list of processes to run.
- * @deprecated
- */
-const std::vector<smx_actor_t>& simgrid::simix::process_get_runnable()
-{
- return simix_global->actors_to_run;
-}
-
/** @brief Returns the process from PID. */
smx_actor_t SIMIX_process_from_PID(aid_t PID)
{
- auto actor = simix_global->process_list.find(PID);
- return actor == simix_global->process_list.end() ? nullptr : actor->second;
-}
-
-void SIMIX_process_on_exit(smx_actor_t actor, int_f_pvoid_pvoid_t fun, void* data)
-{
- SIMIX_process_on_exit(actor, [fun, data](bool failed) {
- intptr_t status = failed ? SMX_EXIT_FAILURE : SMX_EXIT_SUCCESS;
- fun(reinterpret_cast<void*>(status), data);
- });
-}
-
-void SIMIX_process_on_exit(smx_actor_t actor, const std::function<void(int, void*)>& fun, void* data)
-{
- SIMIX_process_on_exit(actor, [fun, data](bool failed) { fun(failed ? SMX_EXIT_FAILURE : SMX_EXIT_SUCCESS, data); });
+ 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;
}
void SIMIX_process_on_exit(smx_actor_t actor, const std::function<void(bool /*failed*/)>& fun)
{
xbt_assert(actor, "current process not found: are you in maestro context ?");
- actor->on_exit.emplace_back(fun);
+ actor->on_exit->emplace_back(fun);
}
/** @brief Restart a process, starting it again from the beginning. */
sg_host_t host, std::unordered_map<std::string, std::string>* properties)
{
smx_actor_t self = SIMIX_process_self();
- return simgrid::simix::simcall([&name, &code, data, host, properties, 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)
{
- simgrid::simix::simcall([process, data] { process->set_user_data(data); });
+ simgrid::kernel::actor::simcall([process, data] { process->set_user_data(data); });
}
