X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/595e59c568ff5f8510de201bfd800951cdc2adcb..c139b4e36702f58bd8a75e87cf537959da82dbc9:/src/s4u/s4u_actor.cpp

diff --git a/src/s4u/s4u_actor.cpp b/src/s4u/s4u_actor.cpp
index 48412257b0..8960fb8366 100644
--- a/src/s4u/s4u_actor.cpp
+++ b/src/s4u/s4u_actor.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2006-2017. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2006-2018. 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. */
@@ -7,16 +7,23 @@
 
 #include "simgrid/s4u/Actor.hpp"
 #include "simgrid/s4u/Comm.hpp"
+#include "simgrid/s4u/Exec.hpp"
 #include "simgrid/s4u/Host.hpp"
 #include "simgrid/s4u/Mailbox.hpp"
 
 #include "src/kernel/context/Context.hpp"
+#include "src/simix/smx_private.hpp"
+
+#include <sstream>
 
 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_actor, "S4U actors");
 
 namespace simgrid {
 namespace s4u {
 
+simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::onCreation;
+simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::onDestruction;
+
 // ***** Actor creation *****
 ActorPtr Actor::self()
 {
@@ -29,7 +36,7 @@ ActorPtr Actor::self()
 
 ActorPtr Actor::createActor(const char* name, s4u::Host* host, std::function<void()> code)
 {
-  smx_actor_t actor = simcall_process_create(name, std::move(code), nullptr, host, nullptr);
+  simgrid::kernel::actor::ActorImpl* actor = simcall_process_create(name, std::move(code), nullptr, host, nullptr);
   return actor->iface();
 }
 
@@ -37,18 +44,32 @@ ActorPtr Actor::createActor(const char* name, s4u::Host* host, const char* funct
 {
   simgrid::simix::ActorCodeFactory& factory = SIMIX_get_actor_code_factory(function);
   simgrid::simix::ActorCode code = factory(std::move(args));
-  smx_actor_t actor                         = simcall_process_create(name, std::move(code), nullptr, host, nullptr);
+  simgrid::kernel::actor::ActorImpl* actor  = simcall_process_create(name, std::move(code), nullptr, host, nullptr);
   return actor->iface();
 }
 
+void intrusive_ptr_add_ref(Actor* actor)
+{
+  intrusive_ptr_add_ref(actor->pimpl_);
+}
+void intrusive_ptr_release(Actor* actor)
+{
+  intrusive_ptr_release(actor->pimpl_);
+}
+
 // ***** Actor methods *****
 
 void Actor::join() {
   simcall_process_join(this->pimpl_, -1);
 }
 
+void Actor::join(double timeout)
+{
+  simcall_process_join(this->pimpl_, timeout);
+}
+
 void Actor::setAutoRestart(bool autorestart) {
-  simcall_process_auto_restart_set(pimpl_,autorestart);
+  simgrid::simix::kernelImmediate([this, autorestart]() { pimpl_->auto_restart = autorestart; });
 }
 
 void Actor::onExit(int_f_pvoid_pvoid_t fun, void* data)
@@ -56,78 +77,141 @@ void Actor::onExit(int_f_pvoid_pvoid_t fun, void* data)
   simcall_process_on_exit(pimpl_, fun, data);
 }
 
+/** @brief Moves the actor to another host
+ *
+ * If the actor is currently blocked on an execution activity, the activity is also
+ * migrated to the new host. If it's blocked on another kind of activity, an error is
+ * raised as the mandated code is not written yet. Please report that bug if you need it.
+ *
+ * Asynchronous activities started by the actor are not migrated automatically, so you have
+ * to take care of this yourself (only you knows which ones should be migrated).
+ */
 void Actor::migrate(Host* new_host)
 {
-  simcall_process_set_host(pimpl_, new_host);
+  std::string key;
+  simgrid::instr::LinkType* link = nullptr;
+  if (TRACE_actor_is_enabled()) {
+    static long long int counter = 0;
+
+    key = std::to_string(counter);
+    counter++;
+
+    // start link
+    container_t actor_container = simgrid::instr::Container::byName(instr_pid(this));
+    link                        = simgrid::instr::Container::getRoot()->getLink("ACTOR_LINK");
+    link->startEvent(actor_container, "M", key);
+
+    // destroy existing container of this process
+    actor_container->removeFromParent();
+  }
+
+  simgrid::simix::kernelImmediate([this, new_host]() {
+    if (pimpl_->waiting_synchro != nullptr) {
+      // The actor is blocked on an activity. If it's an exec, migrate it too.
+      // FIXME: implement the migration of other kind of activities
+      simgrid::kernel::activity::ExecImplPtr exec =
+          boost::dynamic_pointer_cast<simgrid::kernel::activity::ExecImpl>(pimpl_->waiting_synchro);
+      xbt_assert(exec.get() != nullptr, "We can only migrate blocked actors when they are blocked on executions.");
+      exec->migrate(new_host);
+    }
+    SIMIX_process_change_host(this->pimpl_, new_host);
+  });
+
+  if (TRACE_actor_is_enabled()) {
+    // create new container on the new_host location
+    simgrid::instr::Container::byName(new_host->get_name())->createChild(instr_pid(this), "ACTOR");
+    // end link
+    link->endEvent(simgrid::instr::Container::byName(instr_pid(this)), "M", key);
+  }
 }
 
-s4u::Host* Actor::host()
+s4u::Host* Actor::getHost()
 {
   return this->pimpl_->host;
 }
 
-const char* Actor::cname()
+void Actor::daemonize()
+{
+  simgrid::simix::kernelImmediate([this]() { pimpl_->daemonize(); });
+}
+
+bool Actor::isDaemon()
+{
+  return this->pimpl_->isDaemon();
+}
+
+const simgrid::xbt::string& Actor::get_name() const
 {
-  return this->pimpl_->name.c_str();
+  return this->pimpl_->get_name();
 }
 
-simgrid::xbt::string Actor::name()
+const char* Actor::get_cname() const
 {
-  return this->pimpl_->name;
+  return this->pimpl_->get_cname();
 }
 
-aid_t Actor::pid()
+aid_t Actor::getPid()
 {
   return this->pimpl_->pid;
 }
 
-aid_t Actor::ppid()
+aid_t Actor::getPpid()
 {
   return this->pimpl_->ppid;
 }
 
 void Actor::suspend()
 {
+  if (TRACE_actor_is_enabled())
+    simgrid::instr::Container::byName(instr_pid(this))->getState("ACTOR_STATE")->pushEvent("suspend");
+
   simcall_process_suspend(pimpl_);
 }
 
 void Actor::resume()
 {
-  simcall_process_resume(pimpl_);
+  simgrid::simix::kernelImmediate([this] { pimpl_->resume(); });
+  if (TRACE_actor_is_enabled())
+    simgrid::instr::Container::byName(instr_pid(this))->getState("ACTOR_STATE")->popEvent();
 }
 
 int Actor::isSuspended()
 {
-  return simcall_process_is_suspended(pimpl_);
+  return simgrid::simix::kernelImmediate([this] { return pimpl_->suspended; });
 }
 
 void Actor::setKillTime(double time) {
   simcall_process_set_kill_time(pimpl_,time);
 }
 
-double Actor::killTime()
+/** \brief Get the kill time of an actor(or 0 if unset). */
+double Actor::getKillTime()
 {
-  return simcall_process_get_kill_time(pimpl_);
+  return SIMIX_timer_get_date(pimpl_->kill_timer);
 }
 
 void Actor::kill(aid_t pid)
 {
+  smx_actor_t killer  = SIMIX_process_self();
   smx_actor_t process = SIMIX_process_from_PID(pid);
   if(process != nullptr) {
-    simcall_process_kill(process);
+    simgrid::simix::kernelImmediate([killer, process] { SIMIX_process_kill(process, killer); });
   } else {
     std::ostringstream oss;
-    oss << "kill: ("<< pid <<") - No such process" << std::endl;
+    oss << "kill: (" << pid << ") - No such actor" << std::endl;
     throw std::runtime_error(oss.str());
   }
 }
 
-smx_actor_t Actor::getImpl() {
-  return pimpl_;
+void Actor::kill() {
+  smx_actor_t process = SIMIX_process_self();
+  simgrid::simix::kernelImmediate(
+      [this, process] { SIMIX_process_kill(pimpl_, (pimpl_ == simix_global->maestro_process) ? pimpl_ : process); });
 }
 
-void Actor::kill() {
-  simcall_process_kill(pimpl_);
+smx_actor_t Actor::getImpl()
+{
+  return pimpl_;
 }
 
 // ***** Static functions *****
@@ -143,122 +227,161 @@ ActorPtr Actor::byPid(aid_t pid)
 
 void Actor::killAll()
 {
-  simcall_process_killall(1);
+  simcall_process_killall();
 }
 
-void Actor::killAll(int resetPid)
+std::map<std::string, std::string>* Actor::getProperties()
 {
-  simcall_process_killall(resetPid);
+  return simgrid::simix::kernelImmediate([this] { return this->pimpl_->getProperties(); });
 }
 
 /** Retrieve the property value (or nullptr if not set) */
-const char* Actor::property(const char* key)
+const char* Actor::getProperty(const char* key)
 {
-  return (char*)xbt_dict_get_or_null(simcall_process_get_properties(pimpl_), key);
+  return simgrid::simix::kernelImmediate([this, key] { return pimpl_->getProperty(key); });
 }
+
 void Actor::setProperty(const char* key, const char* value)
 {
-  simgrid::simix::kernelImmediate([this, key, value] {
-    xbt_dict_set(simcall_process_get_properties(pimpl_), key, (char*)value, (void_f_pvoid_t) nullptr);
-  });
+  simgrid::simix::kernelImmediate([this, key, value] { pimpl_->setProperty(key, value); });
+}
+
+Actor* Actor::restart()
+{
+  return simgrid::simix::kernelImmediate([this]() { return pimpl_->restart(); });
 }
 
 // ***** this_actor *****
 
 namespace this_actor {
 
+/** Returns true if run from the kernel mode, and false if run from a real actor
+ *
+ * Everything that is run out of any actor (simulation setup before the engine is run,
+ * computing the model evolutions as a result to the actors' action, etc) is run in
+ * kernel mode, just as in any operating systems.
+ *
+ * In SimGrid, the actor in charge of doing the stuff in kernel mode is called Maestro,
+ * because it is the one scheduling when the others should move or wait.
+ */
+bool isMaestro()
+{
+  smx_actor_t process = SIMIX_process_self();
+  return process == nullptr || process == simix_global->maestro_process;
+}
+
 void sleep_for(double duration)
 {
   if (duration > 0)
     simcall_process_sleep(duration);
 }
 
-XBT_PUBLIC(void) sleep_until(double timeout)
+void yield()
+{
+  simgrid::simix::kernelImmediate([] { /* do nothing*/ });
+}
+
+XBT_PUBLIC void sleep_until(double timeout)
 {
   double now = SIMIX_get_clock();
   if (timeout > now)
     simcall_process_sleep(timeout - now);
 }
 
-e_smx_state_t execute(double flops) {
-  smx_activity_t s = simcall_execution_start(nullptr,flops,1.0/*priority*/,0./*bound*/);
-  return simcall_execution_wait(s);
+void execute(double flops)
+{
+  smx_activity_t s = simcall_execution_start(nullptr, flops, 1.0 /*priority*/, 0. /*bound*/, getHost());
+  simcall_execution_wait(s);
 }
 
-void* recv(MailboxPtr chan) {
-  void *res = nullptr;
-  Comm& c = Comm::recv_init(chan);
-  c.setDstData(&res,sizeof(res));
-  c.wait();
-  return res;
+void execute(double flops, double priority)
+{
+  smx_activity_t s = simcall_execution_start(nullptr, flops, 1 / priority /*priority*/, 0. /*bound*/, getHost());
+  simcall_execution_wait(s);
 }
 
-void send(MailboxPtr chan, void* payload, double simulatedSize)
+void parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount, double timeout)
 {
-  Comm& c = Comm::send_init(chan);
-  c.setRemains(simulatedSize);
-  c.setSrcData(payload);
-  // c.start() is optional.
-  c.wait();
+  smx_activity_t s =
+      simcall_execution_parallel_start(nullptr, host_nb, host_list, flops_amount, bytes_amount, -1, timeout);
+  simcall_execution_wait(s);
 }
 
-void send(MailboxPtr chan, void* payload, double simulatedSize, double timeout)
+void parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount)
 {
-  Comm& c = Comm::send_init(chan);
-  c.setRemains(simulatedSize);
-  c.setSrcData(payload);
-  // c.start() is optional.
-  c.wait(timeout);
+  smx_activity_t s = simcall_execution_parallel_start(nullptr, host_nb, host_list, flops_amount, bytes_amount, -1, -1);
+  simcall_execution_wait(s);
 }
 
-Comm& isend(MailboxPtr chan, void* payload, double simulatedSize)
+ExecPtr exec_init(double flops_amount)
 {
-  return Comm::send_async(chan, payload, simulatedSize);
+  ExecPtr res        = ExecPtr(new Exec());
+  res->host_         = getHost();
+  res->flops_amount_ = flops_amount;
+  res->setRemains(flops_amount);
+  return res;
 }
 
-Comm& irecv(MailboxPtr chan, void** data)
+ExecPtr exec_async(double flops)
 {
-  return Comm::recv_async(chan, data);
+  ExecPtr res = exec_init(flops);
+  res->start();
+  return res;
 }
 
-aid_t pid()
+aid_t getPid()
 {
   return SIMIX_process_self()->pid;
 }
 
-aid_t ppid()
+aid_t getPpid()
 {
   return SIMIX_process_self()->ppid;
 }
 
-std::string name()
+std::string get_name()
 {
-  return SIMIX_process_self()->name;
+  return SIMIX_process_self()->get_name();
 }
 
-Host* host()
+const char* get_cname()
+{
+  return SIMIX_process_self()->get_cname();
+}
+
+Host* getHost()
 {
   return SIMIX_process_self()->host;
 }
 
 void suspend()
 {
+  if (TRACE_actor_is_enabled())
+    instr::Container::byName(get_name() + "-" + std::to_string(getPid()))
+        ->getState("ACTOR_STATE")
+        ->pushEvent("suspend");
   simcall_process_suspend(SIMIX_process_self());
 }
 
 void resume()
 {
-  simcall_process_resume(SIMIX_process_self());
+  smx_actor_t process = SIMIX_process_self();
+  simgrid::simix::kernelImmediate([process] { process->resume(); });
+
+  if (TRACE_actor_is_enabled())
+    instr::Container::byName(get_name() + "-" + std::to_string(getPid()))->getState("ACTOR_STATE")->popEvent();
 }
 
-int isSuspended()
+bool isSuspended()
 {
-  return simcall_process_is_suspended(SIMIX_process_self());
+  smx_actor_t process = SIMIX_process_self();
+  return simgrid::simix::kernelImmediate([process] { return process->suspended; });
 }
 
 void kill()
 {
-  simcall_process_kill(SIMIX_process_self());
+  smx_actor_t process = SIMIX_process_self();
+  simgrid::simix::kernelImmediate([process] { SIMIX_process_kill(process, process); });
 }
 
 void onExit(int_f_pvoid_pvoid_t fun, void* data)
@@ -266,10 +389,171 @@ void onExit(int_f_pvoid_pvoid_t fun, void* data)
   simcall_process_on_exit(SIMIX_process_self(), fun, data);
 }
 
+/** @brief Moves the current actor to another host
+ *
+ * @see simgrid::s4u::Actor::migrate() for more information
+ */
 void migrate(Host* new_host)
 {
-  simcall_process_set_host(SIMIX_process_self(), new_host);
+  SIMIX_process_self()->iface()->migrate(new_host);
+}
+
+} // namespace this_actor
+} // namespace s4u
+} // namespace simgrid
+
+/* **************************** Public C interface *************************** */
+
+/** \ingroup m_actor_management
+ * \brief Returns the process ID of \a actor.
+ *
+ * This function checks whether \a actor is a valid pointer and return its PID (or 0 in case of problem).
+ */
+int sg_actor_get_PID(sg_actor_t actor)
+{
+  /* Do not raise an exception here: this function is called by the logs
+   * and the exceptions, so it would be called back again and again */
+  if (actor == nullptr || actor->getImpl() == nullptr)
+    return 0;
+  return actor->getPid();
+}
+
+/** \ingroup m_actor_management
+ * \brief Returns the process ID of the parent of \a actor.
+ *
+ * This function checks whether \a actor is a valid pointer and return its parent's PID.
+ * Returns -1 if the actor has not been created by any other actor.
+ */
+int sg_actor_get_PPID(sg_actor_t actor)
+{
+  return actor->getPpid();
+}
+
+/** \ingroup m_actor_management
+ * \brief Return the name of an actor.
+ */
+const char* sg_actor_get_name(sg_actor_t actor)
+{
+  return actor->get_cname();
+}
+
+sg_host_t sg_actor_get_host(sg_actor_t actor)
+{
+  return actor->getHost();
+}
+
+/** \ingroup m_actor_management
+ * \brief Returns the value of a given actor property
+ *
+ * \param actor an actor
+ * \param name a property name
+ * \return value of a property (or nullptr if the property is not set)
+ */
+const char* sg_actor_get_property_value(sg_actor_t actor, const char* name)
+{
+  return actor->getProperty(name);
 }
+
+/** \ingroup m_actor_management
+ * \brief Return the list of properties
+ *
+ * This function returns all the parameters associated with an actor
+ */
+xbt_dict_t sg_actor_get_properties(sg_actor_t actor)
+{
+  xbt_assert(actor != nullptr, "Invalid parameter: First argument must not be nullptr");
+  xbt_dict_t as_dict = xbt_dict_new_homogeneous(xbt_free_f);
+  std::map<std::string, std::string>* props = actor->getProperties();
+  if (props == nullptr)
+    return nullptr;
+  for (auto const& elm : *props) {
+    xbt_dict_set(as_dict, elm.first.c_str(), xbt_strdup(elm.second.c_str()), nullptr);
+  }
+  return as_dict;
 }
+
+/** \ingroup m_actor_management
+ * \brief Suspend the actor.
+ *
+ * This function suspends the actor by suspending the task on which it was waiting for the completion.
+ */
+void sg_actor_suspend(sg_actor_t actor)
+{
+  xbt_assert(actor != nullptr, "Invalid parameter: First argument must not be nullptr");
+  actor->suspend();
 }
+
+/** \ingroup m_actor_management
+ * \brief Resume a suspended actor.
+ *
+ * This function resumes a suspended actor by resuming the task on which it was waiting for the completion.
+ */
+void sg_actor_resume(sg_actor_t actor)
+{
+  xbt_assert(actor != nullptr, "Invalid parameter: First argument must not be nullptr");
+  actor->resume();
+}
+
+/** \ingroup m_actor_management
+ * \brief Returns true if the actor is suspended .
+ *
+ * This checks whether an actor is suspended or not by inspecting the task on which it was waiting for the completion.
+ */
+int sg_actor_is_suspended(sg_actor_t actor)
+{
+  return actor->isSuspended();
+}
+
+/**
+ * \ingroup m_actor_management
+ * \brief Restarts an actor from the beginning.
+ */
+sg_actor_t sg_actor_restart(sg_actor_t actor)
+{
+  return actor->restart();
+}
+
+/** @ingroup m_actor_management
+ * @brief This actor will be terminated automatically when the last non-daemon actor finishes
+ */
+void sg_actor_daemonize(sg_actor_t actor)
+{
+  actor->daemonize();
+}
+
+/** \ingroup m_actor_management
+ * \brief Migrates an actor to another location.
+ *
+ * This function changes the value of the #sg_host_t on  which \a actor is running.
+ */
+void sg_actor_migrate(sg_actor_t process, sg_host_t host)
+{
+  process->migrate(host);
+}
+
+/** \ingroup m_actor_management
+* \brief Wait for the completion of a #sg_actor_t.
+*
+* \param actor the actor to wait for
+* \param timeout wait until the actor is over, or the timeout expires
+*/
+void sg_actor_join(sg_actor_t actor, double timeout)
+{
+  actor->join(timeout);
+}
+
+void sg_actor_kill(sg_actor_t actor)
+{
+  actor->kill();
+}
+
+/** \ingroup m_actor_management
+ * \brief Set the kill time of an actor.
+ *
+ * \param actor an actor
+ * \param kill_time the time when the actor is killed.
+ */
+void sg_actor_set_kill_time(sg_actor_t actor, double kill_time)
+{
+  actor->setKillTime(kill_time);
 }