Manually split send_immediately and send_later implementations.

tdactor/td/actor/PromiseFuture.h

@@ -291,12 +291,20 @@ class PromiseFuture {
   FutureActor<T> future_;
 };
 
-template <ActorSendType send_type, class T, class ActorAT, class ActorBT, class ResultT, class... DestArgsT,
-          class... ArgsT>
-FutureActor<T> send_promise(ActorId<ActorAT> actor_id, ResultT (ActorBT::*func)(PromiseActor<T> &&, DestArgsT...),
-                            ArgsT &&...args) {
+template <class T, class ActorAT, class ActorBT, class ResultT, class... DestArgsT, class... ArgsT>
+FutureActor<T> send_promise_immediately(ActorId<ActorAT> actor_id,
+                                        ResultT (ActorBT::*func)(PromiseActor<T> &&, DestArgsT...), ArgsT &&...args) {
   PromiseFuture<T> pf;
-  Scheduler::instance()->send_closure<send_type>(
+  Scheduler::instance()->send_closure_immediately(
+      std::move(actor_id), create_immediate_closure(func, pf.move_promise(), std::forward<ArgsT>(args)...));
+  return pf.move_future();
+}
+
+template <class T, class ActorAT, class ActorBT, class ResultT, class... DestArgsT, class... ArgsT>
+FutureActor<T> send_promise_later(ActorId<ActorAT> actor_id, ResultT (ActorBT::*func)(PromiseActor<T> &&, DestArgsT...),
+                                  ArgsT &&...args) {
+  PromiseFuture<T> pf;
+  Scheduler::instance()->send_closure_later(
       std::move(actor_id), create_immediate_closure(func, pf.move_promise(), std::forward<ArgsT>(args)...));
   return pf.move_future();
 }

tdactor/td/actor/impl/Scheduler-decl.h

@@ -39,8 +39,6 @@ extern int VERBOSITY_NAME(actor);
 
 class ActorInfo;
 
-enum class ActorSendType { Immediate, Later };
-
 class Scheduler;
 class SchedulerGuard {
  public:
@@ -109,14 +107,21 @@ class Scheduler {
   template <class... ArgsT>
   void destroy_on_scheduler(int32 sched_id, ArgsT &...values);
 
-  template <ActorSendType send_type, class EventT>
-  void send_lambda(ActorRef actor_ref, EventT &&func);
+  template <class EventT>
+  void send_lambda_immediately(ActorRef actor_ref, EventT &&func);
 
-  template <ActorSendType send_type, class EventT>
-  void send_closure(ActorRef actor_ref, EventT &&closure);
+  template <class EventT>
+  void send_lambda_later(ActorRef actor_ref, EventT &&func);
 
-  template <ActorSendType send_type>
-  void send(ActorRef actor_ref, Event &&event);
+  template <class EventT>
+  void send_closure_immediately(ActorRef actor_ref, EventT &&closure);
+
+  template <class EventT>
+  void send_closure_later(ActorRef actor_ref, EventT &&closure);
+
+  void send_immediately(ActorRef actor_ref, Event &&event);
+
+  void send_later(ActorRef actor_ref, Event &&event);
 
   void before_tail_send(const ActorId<> &actor_id);
 
@@ -199,11 +204,16 @@ class Scheduler {
 
   void flush_mailbox(ActorInfo *actor_info);
 
-  void get_actor_sched_id(const ActorInfo *actor_info, int32 &actor_sched_id, bool &on_current_sched,
-                          bool &can_send_immediately);
+  void get_actor_sched_id_to_send_immediately(const ActorInfo *actor_info, int32 &actor_sched_id,
+                                              bool &on_current_sched, bool &can_send_immediately);
 
-  template <ActorSendType send_type, class RunFuncT, class EventFuncT>
-  void send_impl(const ActorId<> &actor_id, const RunFuncT &run_func, const EventFuncT &event_func);
+  void get_actor_sched_id_to_send_later(const ActorInfo *actor_info, int32 &actor_sched_id, bool &on_current_sched);
+
+  template <class RunFuncT, class EventFuncT>
+  void send_immediately_impl(const ActorId<> &actor_id, const RunFuncT &run_func, const EventFuncT &event_func);
+
+  template <class EventFuncT>
+  void send_later_impl(const ActorId<> &actor_id, const EventFuncT &event_func);
 
   Timestamp run_timeout();
   void run_mailbox();
@@ -275,8 +285,8 @@ void send_closure(ActorIdT &&actor_id, FunctionT function, ArgsT &&...args) {
   using FunctionClassT = member_function_class_t<FunctionT>;
   static_assert(std::is_base_of<FunctionClassT, ActorT>::value, "unsafe send_closure");
 
-  Scheduler::instance()->send_closure<ActorSendType::Immediate>(
-      std::forward<ActorIdT>(actor_id), create_immediate_closure(function, std::forward<ArgsT>(args)...));
+  Scheduler::instance()->send_closure_immediately(std::forward<ActorIdT>(actor_id),
+                                                  create_immediate_closure(function, std::forward<ArgsT>(args)...));
 }
 
 template <class ActorIdT, class FunctionT, class... ArgsT>
@@ -285,23 +295,23 @@ void send_closure_later(ActorIdT &&actor_id, FunctionT function, ArgsT &&...args
   using FunctionClassT = member_function_class_t<FunctionT>;
   static_assert(std::is_base_of<FunctionClassT, ActorT>::value, "unsafe send_closure");
 
-  Scheduler::instance()->send<ActorSendType::Later>(std::forward<ActorIdT>(actor_id),
-                                                    Event::delayed_closure(function, std::forward<ArgsT>(args)...));
+  Scheduler::instance()->send_later(std::forward<ActorIdT>(actor_id),
+                                    Event::delayed_closure(function, std::forward<ArgsT>(args)...));
 }
 
 template <class... ArgsT>
 void send_lambda(ActorRef actor_ref, ArgsT &&...args) {
-  Scheduler::instance()->send_lambda<ActorSendType::Immediate>(actor_ref, std::forward<ArgsT>(args)...);
+  Scheduler::instance()->send_lambda_immediately(actor_ref, std::forward<ArgsT>(args)...);
 }
 
 template <class... ArgsT>
 void send_event(ActorRef actor_ref, ArgsT &&...args) {
-  Scheduler::instance()->send<ActorSendType::Immediate>(actor_ref, std::forward<ArgsT>(args)...);
+  Scheduler::instance()->send_immediately(actor_ref, std::forward<ArgsT>(args)...);
 }
 
 template <class... ArgsT>
 void send_event_later(ActorRef actor_ref, ArgsT &&...args) {
-  Scheduler::instance()->send<ActorSendType::Later>(actor_ref, std::forward<ArgsT>(args)...);
+  Scheduler::instance()->send_later(actor_ref, std::forward<ArgsT>(args)...);
 }
 
 }  // namespace td

tdactor/td/actor/impl/Scheduler.cpp

@@ -301,8 +301,8 @@ void Scheduler::do_event(ActorInfo *actor_info, Event &&event) {
   // can't clear event here. It may be already destroyed during destroy_actor
 }
 
-void Scheduler::get_actor_sched_id(const ActorInfo *actor_info, int32 &actor_sched_id, bool &on_current_sched,
-                                   bool &can_send_immediately) {
+void Scheduler::get_actor_sched_id_to_send_immediately(const ActorInfo *actor_info, int32 &actor_sched_id,
+                                                       bool &on_current_sched, bool &can_send_immediately) {
   bool is_migrating;
   std::tie(actor_sched_id, is_migrating) = actor_info->migrate_dest_flag_atomic();
   on_current_sched = !is_migrating && sched_id_ == actor_sched_id;
@@ -310,6 +310,14 @@ void Scheduler::get_actor_sched_id(const ActorInfo *actor_info, int32 &actor_sch
   can_send_immediately = on_current_sched && !actor_info->is_running() && actor_info->mailbox_.empty();
 }
 
+void Scheduler::get_actor_sched_id_to_send_later(const ActorInfo *actor_info, int32 &actor_sched_id,
+                                                 bool &on_current_sched) {
+  bool is_migrating;
+  std::tie(actor_sched_id, is_migrating) = actor_info->migrate_dest_flag_atomic();
+  on_current_sched = !is_migrating && sched_id_ == actor_sched_id;
+  CHECK(has_guard_ || !on_current_sched);
+}
+
 void Scheduler::register_migrated_actor(ActorInfo *actor_info) {
   VLOG(actor) << "Register migrated actor " << *actor_info << ", " << tag("actor_count", actor_count_);
   actor_count_++;
@@ -549,7 +557,7 @@ Timestamp Scheduler::run_timeout() {
   while (!timeout_queue_.empty() && timeout_queue_.top_key() < now) {
     HeapNode *node = timeout_queue_.pop();
     ActorInfo *actor_info = ActorInfo::from_heap_node(node);
-    send<ActorSendType::Immediate>(actor_info->actor_id(), Event::timeout());
+    send_immediately(actor_info->actor_id(), Event::timeout());
   }
   return get_timeout();
 }

tdactor/td/actor/impl/Scheduler.h

@@ -108,12 +108,12 @@ ActorOwn<ActorT> Scheduler::register_actor_impl(Slice name, ActorT *actor_ptr, A
 
   ActorId<ActorT> actor_id = weak_info->actor_id(actor_ptr);
   if (sched_id != sched_id_) {
-    send<ActorSendType::Later>(actor_id, Event::start());
+    send_later(actor_id, Event::start());
     do_migrate_actor(actor_info, sched_id);
   } else {
     pending_actors_list_.put(weak_info->get_list_node());
     if (ActorTraits<ActorT>::need_start_up) {
-      send<ActorSendType::Later>(actor_id, Event::start());
+      send_later(actor_id, Event::start());
     }
   }
 
@@ -178,8 +178,9 @@ inline void Scheduler::before_tail_send(const ActorId<> &actor_id) {
   // TODO
 }
 
-template <ActorSendType send_type, class RunFuncT, class EventFuncT>
-void Scheduler::send_impl(const ActorId<> &actor_id, const RunFuncT &run_func, const EventFuncT &event_func) {
+template <class RunFuncT, class EventFuncT>
+void Scheduler::send_immediately_impl(const ActorId<> &actor_id, const RunFuncT &run_func,
+                                      const EventFuncT &event_func) {
   ActorInfo *actor_info = actor_id.get_actor_info();
   if (unlikely(actor_info == nullptr || close_flag_)) {
     return;
@@ -188,9 +189,9 @@ void Scheduler::send_impl(const ActorId<> &actor_id, const RunFuncT &run_func, c
   int32 actor_sched_id;
   bool on_current_sched;
   bool can_send_immediately;
-  get_actor_sched_id(actor_info, actor_sched_id, on_current_sched, can_send_immediately);
+  get_actor_sched_id_to_send_immediately(actor_info, actor_sched_id, on_current_sched, can_send_immediately);
 
-  if (likely(send_type == ActorSendType::Immediate && can_send_immediately)) {  // run immediately
+  if (likely(can_send_immediately)) {  // run immediately
     EventGuard guard(this, actor_info);
     run_func(actor_info);
   } else {
@@ -202,9 +203,27 @@ void Scheduler::send_impl(const ActorId<> &actor_id, const RunFuncT &run_func, c
   }
 }
 
-template <ActorSendType send_type, class EventT>
-void Scheduler::send_lambda(ActorRef actor_ref, EventT &&func) {
-  return send_impl<send_type>(
+template <class EventFuncT>
+void Scheduler::send_later_impl(const ActorId<> &actor_id, const EventFuncT &event_func) {
+  ActorInfo *actor_info = actor_id.get_actor_info();
+  if (unlikely(actor_info == nullptr || close_flag_)) {
+    return;
+  }
+
+  int32 actor_sched_id;
+  bool on_current_sched;
+  get_actor_sched_id_to_send_later(actor_info, actor_sched_id, on_current_sched);
+
+  if (on_current_sched) {
+    add_to_mailbox(actor_info, event_func());
+  } else {
+    send_to_scheduler(actor_sched_id, actor_id, event_func());
+  }
+}
+
+template <class EventT>
+void Scheduler::send_lambda_immediately(ActorRef actor_ref, EventT &&func) {
+  return send_immediately_impl(
       actor_ref.get(),
       [&](ActorInfo *actor_info) {
         event_context_ptr_->link_token = actor_ref.token();
@@ -217,9 +236,18 @@ void Scheduler::send_lambda(ActorRef actor_ref, EventT &&func) {
       });
 }
 
-template <ActorSendType send_type, class EventT>
-void Scheduler::send_closure(ActorRef actor_ref, EventT &&closure) {
-  return send_impl<send_type>(
+template <class EventT>
+void Scheduler::send_lambda_later(ActorRef actor_ref, EventT &&func) {
+  return send_later_impl(actor_ref.get(), [&] {
+    auto event = Event::from_lambda(std::forward<EventT>(func));
+    event.set_link_token(actor_ref.token());
+    return event;
+  });
+}
+
+template <class EventT>
+void Scheduler::send_closure_immediately(ActorRef actor_ref, EventT &&closure) {
+  return send_immediately_impl(
       actor_ref.get(),
       [&](ActorInfo *actor_info) {
         event_context_ptr_->link_token = actor_ref.token();
@@ -232,14 +260,27 @@ void Scheduler::send_closure(ActorRef actor_ref, EventT &&closure) {
       });
 }
 
-template <ActorSendType send_type>
-void Scheduler::send(ActorRef actor_ref, Event &&event) {
+template <class EventT>
+void Scheduler::send_closure_later(ActorRef actor_ref, EventT &&closure) {
+  return send_later_impl(actor_ref.get(), [&] {
+    auto event = Event::immediate_closure(std::forward<EventT>(closure));
+    event.set_link_token(actor_ref.token());
+    return event;
+  });
+}
+
+inline void Scheduler::send_immediately(ActorRef actor_ref, Event &&event) {
   event.set_link_token(actor_ref.token());
-  return send_impl<send_type>(
+  return send_immediately_impl(
       actor_ref.get(), [&](ActorInfo *actor_info) { do_event(actor_info, std::move(event)); },
       [&] { return std::move(event); });
 }
 
+inline void Scheduler::send_later(ActorRef actor_ref, Event &&event) {
+  event.set_link_token(actor_ref.token());
+  return send_later_impl(actor_ref.get(), [&] { return std::move(event); });
+}
+
 inline void Scheduler::subscribe(PollableFd fd, PollFlags flags) {
   instance()->poll_.subscribe(std::move(fd), flags);
 }
@@ -256,7 +297,7 @@ inline void Scheduler::yield_actor(Actor *actor) {
   yield_actor(actor->get_info());
 }
 inline void Scheduler::yield_actor(ActorInfo *actor_info) {
-  send<ActorSendType::Later>(actor_info->actor_id(), Event::yield());
+  send_later(actor_info->actor_id(), Event::yield());
 }
 
 inline void Scheduler::stop_actor(Actor *actor) {

tdactor/test/actors_main.cpp

@@ -126,8 +126,8 @@ class QueryActor final : public td::Actor {
       callback_->on_result(std::move(query));
     } else {
       auto future = td::Random::fast(0, 3) == 0
-                        ? td::send_promise<td::ActorSendType::Immediate>(rand_elem(workers_), &Worker::query, x, p)
-                        : td::send_promise<td::ActorSendType::Later>(rand_elem(workers_), &Worker::query, x, p);
+                        ? td::send_promise_immediately(rand_elem(workers_), &Worker::query, x, p)
+                        : td::send_promise_later(rand_elem(workers_), &Worker::query, x, p);
       if (future.is_ready()) {
         query.result = future.move_as_ok();
         callback_->on_result(std::move(query));
@@ -301,9 +301,8 @@ class SimpleActor final : public td::Actor {
     }
     q_++;
     p_ = td::Random::fast_bool() ? 1 : 10000;
-    auto future = td::Random::fast(0, 3) == 0
-                      ? td::send_promise<td::ActorSendType::Immediate>(worker_, &Worker::query, q_, p_)
-                      : td::send_promise<td::ActorSendType::Later>(worker_, &Worker::query, q_, p_);
+    auto future = td::Random::fast(0, 3) == 0 ? td::send_promise_immediately(worker_, &Worker::query, q_, p_)
+                                              : td::send_promise_later(worker_, &Worker::query, q_, p_);
     if (future.is_ready()) {
       auto result = future.move_as_ok();
       CHECK(result == fast_pow_mod_uint32(q_, p_));