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// 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;
/**
* 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 Network
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