citra/src/core/announce_multiplayer_session.h
zhupengfei 4a9ea65e49
core, citra_qt: Allow credentials update in multiplayer announce session
Allows updating the credentials of the announce session, thus allowing credentials changes to be reflected before citra restart. To avoid race conditions and web errors (you can only update the room that you created, i.e. changing credentials halfway will make it break), now you can only use the Citra Web Services settings when not hosting a public room.
2019-04-20 12:50:24 +08:00

97 lines
2.6 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 <functional>
#include <memory>
#include <mutex>
#include <set>
#include <thread>
#include "common/announce_multiplayer_room.h"
#include "common/common_types.h"
#include "common/thread.h"
namespace Network {
class Room;
}
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);
/**
* Registers a room to web services
* @return The result of the registration attempt.
*/
Common::WebResult Register();
/**
* 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
*/
AnnounceMultiplayerRoom::RoomList GetRoomList();
/**
* Whether the announce session is still running
*/
bool IsRunning() const;
/**
* Recreates the backend, updating the credentials.
* This can only be used when the announce session is not running.
*/
void UpdateCredentials();
private:
Common::Event shutdown_event;
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;
std::atomic_bool registered = false; ///< Whether the room has been registered
void UpdateBackendData(std::shared_ptr<Network::Room> room);
void AnnounceMultiplayerLoop();
};
} // namespace Core