vladislavbelov
ffc4a56b9f
Fixes #6846 Differential Revision: https://code.wildfiregames.com/D5185 This was SVN commit r27965.
107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/* Copyright (C) 2021 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_NETSERVERTURNMANAGER
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#define INCLUDED_NETSERVERTURNMANAGER
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#include "ps/CStr.h"
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#include <map>
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#include <unordered_map>
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class CNetServerWorker;
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class CNetServerSession;
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/**
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* The server-side counterpart to CNetClientTurnManager.
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* Records the turn state of each client, and sends turn advancement messages
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* when clients are ready.
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*
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* Thread-safety:
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* - This is constructed and used by CNetServerWorker in the network server thread.
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*/
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class CNetServerTurnManager
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{
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NONCOPYABLE(CNetServerTurnManager);
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public:
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CNetServerTurnManager(CNetServerWorker& server);
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void NotifyFinishedClientCommands(CNetServerSession& session, u32 turn);
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void NotifyFinishedClientUpdate(CNetServerSession& session, u32 turn, const CStr& hash);
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/**
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* Inform the turn manager of a new client
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* @param observer - whether this client is an observer.
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*/
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void InitialiseClient(int client, u32 turn, bool observer);
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/**
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* Inform the turn manager that a previously-initialised client has left the game.
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*/
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void UninitialiseClient(int client);
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void SetTurnLength(u32 msecs);
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/**
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* Returns the latest turn for which all clients are ready;
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* they will have already been told to execute this turn.
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*/
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u32 GetReadyTurn() { return m_ReadyTurn; }
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/**
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* Returns the turn length that was used for the given turn.
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* Requires turn <= GetReadyTurn().
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*/
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u32 GetSavedTurnLength(u32 turn);
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private:
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void CheckClientsReady();
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struct Client
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{
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CStrW playerName;
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// Latest turn for which all commands have been received.
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u32 readyTurn;
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// Last known simulated turn.
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u32 simulatedTurn;
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bool isObserver;
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bool isOOS = false;
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};
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std::unordered_map<int, Client> m_ClientsData;
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// Cached value - is any client OOS? This is reset when the OOS client leaves.
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bool m_HasSyncError = false;
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// Map of turn -> {Client ID -> state hash}; old indexes <= min(m_ClientsSimulated) are deleted
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std::map<u32, std::map<int, std::string>> m_ClientStateHashes;
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/// The latest turn for which we have received all commands from all clients
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u32 m_ReadyTurn;
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// Current turn length
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u32 m_TurnLength;
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// Turn lengths for all previously executed turns
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std::vector<u32> m_SavedTurnLengths;
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CNetServerWorker& m_NetServer;
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};
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#endif // INCLUDED_NETSERVERTURNMANAGER
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