132 lines
3.3 KiB
C++
132 lines
3.3 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/actor/impl/ActorId-decl.h"
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#include "td/actor/impl/Event.h"
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#include "td/utils/common.h"
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#include "td/utils/Heap.h"
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#include "td/utils/List.h"
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#include "td/utils/ObjectPool.h"
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#include "td/utils/Slice.h"
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#include "td/utils/StringBuilder.h"
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#include <atomic>
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#include <memory>
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#include <utility>
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namespace td {
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class Actor;
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class ActorContext {
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public:
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ActorContext() = default;
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ActorContext(const ActorContext &) = delete;
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ActorContext &operator=(const ActorContext &) = delete;
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ActorContext(ActorContext &&) = delete;
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ActorContext &operator=(ActorContext &&) = delete;
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virtual ~ActorContext() = default;
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virtual int32 get_id() const {
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return 0;
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}
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void set_tag(string tag) {
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tag_storage_ = std::move(tag);
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tag_ = tag_storage_.c_str();
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}
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const char *tag_ = nullptr;
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string tag_storage_; // sometimes tag_ == tag_storage_.c_str()
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std::weak_ptr<ActorContext> this_ptr_;
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};
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class ActorInfo
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: private ListNode
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, HeapNode {
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public:
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enum class Deleter : uint8 { Destroy, None };
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ActorInfo() = default;
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~ActorInfo() = default;
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ActorInfo(ActorInfo &&) = delete;
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ActorInfo &operator=(ActorInfo &&) = delete;
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ActorInfo(const ActorInfo &) = delete;
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ActorInfo &operator=(const ActorInfo &) = delete;
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void init(int32 sched_id, Slice name, ObjectPool<ActorInfo>::OwnerPtr &&this_ptr, Actor *actor_ptr, Deleter deleter,
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bool is_lite);
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void on_actor_moved(Actor *actor_new_ptr);
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template <class ActorT>
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ActorOwn<ActorT> transfer_ownership_to_scheduler(unique_ptr<ActorT> actor);
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void clear();
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void destroy_actor();
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bool empty() const;
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void start_migrate(int32 to_sched_id);
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bool is_migrating() const;
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int32 migrate_dest() const;
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std::pair<int32, bool> migrate_dest_flag_atomic() const;
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void finish_migrate();
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ActorId<> actor_id();
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template <class SelfT>
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ActorId<SelfT> actor_id(SelfT *self);
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Actor *get_actor_unsafe();
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const Actor *get_actor_unsafe() const;
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std::shared_ptr<ActorContext> set_context(std::shared_ptr<ActorContext> context);
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ActorContext *get_context();
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const ActorContext *get_context() const;
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CSlice get_name() const;
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HeapNode *get_heap_node();
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const HeapNode *get_heap_node() const;
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static ActorInfo *from_heap_node(HeapNode *node);
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ListNode *get_list_node();
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const ListNode *get_list_node() const;
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static ActorInfo *from_list_node(ListNode *node);
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void start_run();
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bool is_running() const;
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void finish_run();
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vector<Event> mailbox_;
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bool is_lite() const;
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void set_wait_generation(uint32 wait_generation);
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bool must_wait(uint32 wait_generation) const;
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void always_wait_for_mailbox();
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private:
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Deleter deleter_ = Deleter::None;
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bool is_lite_ = false;
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bool is_running_ = false;
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bool always_wait_for_mailbox_{false};
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uint32 wait_generation_{0};
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std::atomic<int32> sched_id_{0};
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Actor *actor_ = nullptr;
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#ifdef TD_DEBUG
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string name_;
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#endif
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std::shared_ptr<ActorContext> context_;
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};
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StringBuilder &operator<<(StringBuilder &sb, const ActorInfo &info);
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} // namespace td
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