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82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
// This file is public domain, in case it's useful to anyone. -comex
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#pragma once
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#include <enet/enet.h>
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#include <functional>
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#include <list>
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#include <memory>
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#include <random>
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#include "Common/Common.h"
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#include "Common/Thread.h"
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#include "Common/TraversalProto.h"
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class TraversalClientClient
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{
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public:
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virtual ~TraversalClientClient(){};
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virtual void OnTraversalStateChanged() = 0;
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virtual void OnConnectReady(ENetAddress addr) = 0;
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virtual void OnConnectFailed(u8 reason) = 0;
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};
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class TraversalClient
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{
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public:
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enum State
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{
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Connecting,
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Connected,
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Failure
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};
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enum FailureReason
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{
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BadHost = 0x300,
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VersionTooOld,
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ServerForgotAboutUs,
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SocketSendError,
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ResendTimeout,
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};
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TraversalClient(ENetHost* netHost, const std::string& server, const u16 port);
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~TraversalClient();
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void Reset();
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void ConnectToClient(const std::string& host);
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void ReconnectToServer();
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void Update();
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// called from NetHost
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bool TestPacket(u8* data, size_t size, ENetAddress* from);
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void HandleResends();
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ENetHost* m_NetHost;
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TraversalClientClient* m_Client;
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TraversalHostId m_HostId;
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State m_State;
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int m_FailureReason;
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private:
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struct OutgoingTraversalPacketInfo
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{
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TraversalPacket packet;
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int tries;
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enet_uint32 sendTime;
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};
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void HandleServerPacket(TraversalPacket* packet);
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void ResendPacket(OutgoingTraversalPacketInfo* info);
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TraversalRequestId SendTraversalPacket(const TraversalPacket& packet);
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void OnFailure(FailureReason reason);
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void HandlePing();
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static int ENET_CALLBACK InterceptCallback(ENetHost* host, ENetEvent* event);
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TraversalRequestId m_ConnectRequestId;
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bool m_PendingConnect;
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std::list<OutgoingTraversalPacketInfo> m_OutgoingTraversalPackets;
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ENetAddress m_ServerAddress;
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std::string m_Server;
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u16 m_port;
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enet_uint32 m_PingTime;
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};
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extern std::unique_ptr<TraversalClient> g_TraversalClient;
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// the NetHost connected to the TraversalClient.
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extern std::unique_ptr<ENetHost> g_MainNetHost;
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// Create g_TraversalClient and g_MainNetHost if necessary.
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bool EnsureTraversalClient(const std::string& server, u16 server_port, u16 listen_port = 0);
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void ReleaseTraversalClient();
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