khanat-opennel-code/code/ryzom/server/src/tick_service/tick_service.h
2013-07-31 15:08:35 -07:00

376 lines
8.7 KiB
C++

// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef TICK_S_H
#define TICK_S_H
#include "nel/misc/types_nl.h"
#include "nel/misc/time_nl.h"
#include "nel/misc/common.h"
#include "nel/net/service.h"
#include "range_mirror_manager.h"
#include "game_share/tick_proxy_time_measure.h"
/**
* CClientInfos
*
* \author Stephane Coutelas
* \author Nevrax France
* \date 2001
*/
class CClientInfos
{
public :
/// true if the tock has been received since the last tick
bool TockReceived;
/// true if this client is supposed to send a tock
bool Registered;
/// true if a tock from this client is not necessary to send a new tick
bool Tocking;
/// number of non received tock from this client allowed before freezing time service
uint16 Threshold;
/// count of missing tocks
uint16 TockMissingCount;
/**
* default constructor
*/
CClientInfos() : TockReceived(true),Registered(false),Tocking(true),Threshold(0),TockMissingCount(0)
{}
};
///
class CMirrorGameCycleTimeMeasureMS : public CMirrorGameCycleTimeMeasure
{
public:
NLNET::TServiceId MSId; // not serialised
};
enum TTickServiceTimeMeasureType { PrevTotalTickDuration, NbTickServiceTimeMeasureTypes };
typedef CTimeMeasure<NbTickServiceTimeMeasureTypes> CTickServiceTimeMeasure;
enum TTimeMeasureHistoryStat { MHTSum, MHTMin, MHTMax, NbTimeMeasureHistoryStats };
/*
*
*/
template <class T>
class CTimeMeasureHistory
{
public:
NLNET::TServiceId ServiceId;
NLNET::TServiceId ParentServiceId;
uint16 NbMeasures;
std::vector< T > Stats; // indexed by NbTimeMeasureHistoryTypes
///
CTimeMeasureHistory( NLNET::TServiceId serviceId, NLNET::TServiceId parentServiceId, bool setFirst, const T *newMeasure=NULL )
{
ServiceId = serviceId;
ParentServiceId = parentServiceId;
reset( setFirst, newMeasure );
}
///
void reset( bool setFirst, const T *newMeasure=NULL )
{
if ( setFirst )
{
NbMeasures = 1;
Stats.resize( NbTimeMeasureHistoryStats, *newMeasure );
}
else
{
NbMeasures = 0;
Stats.resize( NbTimeMeasureHistoryStats );
Stats[MHTSum] = 0;
Stats[MHTMin] = ~0;
Stats[MHTMax] = 0;
}
}
///
void updateStats( const T& newMeasure )
{
++NbMeasures;
for ( uint i=0; i!=newMeasure.size(); ++i )
{
Stats[MHTSum][i] += newMeasure[i];
if ( newMeasure[i] < Stats[MHTMin][i] ) Stats[MHTMin][i] = newMeasure[i];
//ldebug( "1. NEW: %hu MAX: %hu", newMeasure[i], Stats[MHTMax][i] );
if ( newMeasure[i] > Stats[MHTMax][i] ) Stats[MHTMax][i] = newMeasure[i];
//nldebug( "2. NEW: %hu MAX: %hu", newMeasure[i], Stats[MHTMax][i] );
}
}
};
typedef CTimeMeasureHistory<CMirrorTimeMeasure> CMirrorTimeMeasureHistory;
typedef CTimeMeasureHistory<CServiceTimeMeasure> CServiceTimeMeasureHistory;
typedef CTimeMeasureHistory<CTickServiceTimeMeasure> CTickServiceMeasureHistory;
/**
*
*/
class CTickServiceGameCycleTimeMeasure
{
public:
typedef std::vector<CMirrorGameCycleTimeMeasureMS> TMirrorMeasures;
TMirrorMeasures CurrentMirrorMeasures;
CTickServiceTimeMeasure CurrentTickServiceMeasure;
std::vector< CMirrorTimeMeasureHistory > HistoryByMirror;
std::vector< CServiceTimeMeasureHistory > HistoryByService;
CTickServiceMeasureHistory HistoryMain;
///
CTickServiceGameCycleTimeMeasure();
///
void beginNewCycle();
///
void resetMeasures();
///
void displayStats( NLMISC::CLog *log );
///
void displayStat( NLMISC::CLog *log, TTimeMeasureHistoryStat stat );
protected:
template <class HistoryItem, class Measure>
void storeMeasureToHistory( std::vector<HistoryItem>& history, const Measure& newMeasure, NLNET::TServiceId serviceId, NLNET::TServiceId parentServiceId )
{
typename std::vector<HistoryItem>::iterator ihm;
// Find the right history item
for ( ihm=history.begin(); ihm!=history.end(); ++ihm )
{
if ( (*ihm).ServiceId == serviceId )
break;
}
if ( ihm == history.end() )
{
// New in history => add it
HistoryItem hist( serviceId, parentServiceId, true, &newMeasure );
history.push_back( hist );
}
else
{
// Already in history => update stats
(*ihm).updateStats( newMeasure );
}
}
};
/**
* CTickService
*
* \author Stephane Coutelas
* \author Nevrax France
* \date 2001
*/
class CTickService : public NLNET::IService
{
public :
/**
* Execution mode : continuous or step by step(user chooses when to send a tick)
*/
enum TTickSendingMode { Continuous = 0, StepByStep, Fastest };
/**
* State Mode
*/
enum TTickStateMode { TickRunning = 0, TickHalted };
/// Initialise the service
void init();
/// Update
bool update();
/// Release
void release();
/**
* Register a client
* \param serviceId is the unique id of the client service
* \param tocking true if we have to wait a tock from this client before to send another tick
* \param threshold is the max missing tock allowed
*/
void registerClient( NLNET::TServiceId serviceId, bool tocking, uint16 threshold );
/**
* Unregister a client
* \param serviceId is the unique id of the client service
*/
void unregisterClient( NLNET::TServiceId serviceId );
/**
* halt ticking
*/
void haltTick(const std::string& reason);
/**
* resume ticking
*/
void resumeTick();
/**
* broadcastTick
*/
void broadcastTick();
/**
* A registered service sent a tock
*/
void addTock( NLNET::TServiceId serviceId );
/**
* Check if all tock have been received, broadcast a new tick if yes
*/
void checkTockReceived();
/**
* give permission to send time in the step by step mode
*/
inline void enableSend() { _StepCount++; }
/**
* Get the current game time step
*/
inline NLMISC::TGameTime getGameTimeStep() const { return _GameTimeStep; }
/**
* set the game time step
* \param gameTimeStep is the game time step
*/
inline void setGameTimeStep( NLMISC::TGameTime gameTimeStep ) { _GameTimeStep = gameTimeStep; }
/**
* Get the time step between two ticks
* \return the time step between 2 ticks
*/
inline NLMISC::TLocalTime getTickTimeStep() const { return _TickTimeStep; }
/**
* set the time step between two ticks
* \param timeStep is the time step between 2 ticks
*/
inline void setTickTimeStep( NLMISC::TLocalTime timeStep ) { _TickTimeStep = timeStep; }
/**
* Get the current game time
* \return current game time
*/
inline NLMISC::TGameTime getGameTime() const { return _GameTime; }
/**
* number of game cycle elapsed
*/
inline NLMISC::TGameCycle getGameCycle() const { return _GameCycle; }
/**
* The tick service and all connected services display its current time
*/
void displayGameTime() const;
/**
* Get the number of registered clients
* \return number of registered clients
*/
uint16 getClientCount();
/// Save to file
bool saveGameCycle();
/// Load from file
bool loadGameCycle();
void tickFileCallback(const CFileDescription& fileDescription, NLMISC::IStream& dataStream);
bool FirstTime;
TTickStateMode CurrentMode;
std::string HaltedReason;
/// Displayer of recent history
NLMISC::CLightMemDisplayer RecentHistory;
/// Shard timings
CTickServiceGameCycleTimeMeasure MainTimeMeasures;
private :
/// infos about the connected clients
std::vector< CClientInfos > _ClientInfos;
/// different from 0 if the service is allowed to send one or multiple ticks ( note : used in step by step only )
uint16 _StepCount;
/// time increment value (diff time between two ticks)
NLMISC::TLocalTime _TickTimeStep;
/// the value of the time step used in the last tick
NLMISC::TLocalTime _LastTickTimeStep;
/// number of game cycle elapsed
NLMISC::TGameCycle _GameCycle;
/// Saved game cycle
NLMISC::TGameCycle _SavedGameCycle;
/// game time
NLMISC::TGameTime _GameTime;
/// delta game time
NLMISC::TGameTime _GameTimeStep;
/// true if the value of the game timestep has changed since last tick send
bool _GameTimeStepHasChanged;
/// time when the last tick was sent
NLMISC::TLocalTime _TickSendTime;
/// Log to recent history
NLMISC::CLog _QuickLog;
/// Row range manager for mirror system
CRangeMirrorManager _RangeMirrorManager;
};
#endif //TICK_S_H