X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/360d1e6510190d279551d9ca0510badccb1f8b37..c7c5def2870e604025be03b866967c0c5e293afe:/src/s4u/s4u_actor.cpp

diff --git a/src/s4u/s4u_actor.cpp b/src/s4u/s4u_actor.cpp
index c888fb3a6f..5e07894d8d 100644
--- a/src/s4u/s4u_actor.cpp
+++ b/src/s4u/s4u_actor.cpp
@@ -21,6 +21,8 @@ XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_actor, "S4U actors");
 namespace simgrid {
 namespace s4u {
 
+simgrid::xbt::signal<void(simgrid::s4u::ActorPtr)> s4u::Actor::onCreation;
+
 // ***** Actor creation *****
 ActorPtr Actor::self()
 {
@@ -74,9 +76,28 @@ 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)
 {
-  simgrid::simix::kernelImmediate([this, new_host]() { pimpl_->new_host = new_host; });
+  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);
+  });
 }
 
 s4u::Host* Actor::getHost()
@@ -111,12 +132,17 @@ aid_t Actor::getPpid()
 
 void Actor::suspend()
 {
+  if (TRACE_actor_is_enabled())
+    simgrid::instr::Container::byName(instr_pid(this))->getState("MSG_PROCESS_STATE")->pushEvent("suspend");
+
   simcall_process_suspend(pimpl_);
 }
 
 void Actor::resume()
 {
   simgrid::simix::kernelImmediate([this] { pimpl_->resume(); });
+  if (TRACE_actor_is_enabled())
+    simgrid::instr::Container::byName(instr_pid(this))->getState("MSG_PROCESS_STATE")->popEvent();
 }
 
 int Actor::isSuspended()
@@ -333,6 +359,10 @@ Host* getHost()
 
 void suspend()
 {
+  if (TRACE_actor_is_enabled())
+    instr::Container::byName(getName() + "-" + std::to_string(getPid()))
+        ->getState("MSG_PROCESS_STATE")
+        ->pushEvent("suspend");
   simcall_process_suspend(SIMIX_process_self());
 }
 
@@ -340,6 +370,9 @@ void resume()
 {
   smx_actor_t process = SIMIX_process_self();
   simgrid::simix::kernelImmediate([process] { process->resume(); });
+
+  if (TRACE_actor_is_enabled())
+    instr::Container::byName(getName() + "-" + std::to_string(getPid()))->getState("MSG_PROCESS_STATE")->popEvent();
 }
 
 bool isSuspended()
@@ -359,10 +392,13 @@ 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)
 {
-  smx_actor_t process = SIMIX_process_self();
-  simgrid::simix::kernelImmediate([process, new_host] { process->new_host = new_host; });
+  SIMIX_process_self()->iface()->migrate(new_host);
 }
 }
 }