citra/src/core/announce_multiplayer_session.h

77 lines
2.2 KiB
C++

// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <atomic>
#include <condition_variable>
#include <functional>
#include <memory>
#include <mutex>
#include <set>
#include <thread>
#include "common/announce_multiplayer_room.h"
#include "common/common_types.h"
namespace Core {
/**
* Instruments AnnounceMultiplayerRoom::Backend.
* Creates a thread that regularly updates the room information and submits them
* An async get of room information is also possible
*/
class AnnounceMultiplayerSession : NonCopyable {
public:
using CallbackHandle = std::shared_ptr<std::function<void(const Common::WebResult&)>>;
AnnounceMultiplayerSession();
~AnnounceMultiplayerSession();
/**
* Allows to bind a function that will get called if the announce encounters an error
* @param function The function that gets called
* @return A handle that can be used the unbind the function
*/
CallbackHandle BindErrorCallback(std::function<void(const Common::WebResult&)> function);
/**
* Unbind a function from the error callbacks
* @param handle The handle for the function that should get unbind
*/
void UnbindErrorCallback(CallbackHandle handle);
/**
* Starts the announce of a room to web services
*/
void Start();
/**
* Stops the announce to web services
*/
void Stop();
/**
* Returns a list of all room information the backend got
* @param func A function that gets executed when the async get finished, e.g. a signal
* @return a list of rooms received from the web service
*/
std::future<AnnounceMultiplayerRoom::RoomList> GetRoomList(std::function<void()> func);
private:
std::atomic<bool> announce{false};
/// conditional variable to notify the announce thread to end early
std::condition_variable cv;
std::mutex cv_m; ///< mutex for cv
std::mutex callback_mutex;
std::set<CallbackHandle> error_callbacks;
std::unique_ptr<std::thread> announce_multiplayer_thread;
/// Backend interface that logs fields
std::unique_ptr<AnnounceMultiplayerRoom::Backend> backend;
void AnnounceMultiplayerLoop();
};
} // namespace Core