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include/raknet/StatisticsHistory.hpp
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235
include/raknet/StatisticsHistory.hpp
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/*
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* Copyright (c) 2014, Oculus VR, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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/// \file StatisticsHistory.h
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/// \brief Input numerical values over time. Get sum, average, highest, lowest, standard deviation on recent or all-time values
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#include "NativeFeatureIncludes.hpp"
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#if _RAKNET_SUPPORT_StatisticsHistory==1
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#ifndef __STATISTICS_HISTORY_H
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#define __STATISTICS_HISTORY_H
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#include "PluginInterface2.hpp"
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#include "RakMemoryOverride.hpp"
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#include "NativeTypes.hpp"
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#include "DS_List.hpp"
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#include "RakNetTypes.hpp"
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#include "DS_OrderedList.hpp"
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#include "RakString.hpp"
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#include "DS_Queue.hpp"
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#include "DS_Hash.hpp"
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#include <float.h>
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namespace RakNet
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{
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/// Forward declarations
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class RakPeerInterface;
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// Type used to track values. If needed, change to double and recompile
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typedef double SHValueType;
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#define SH_TYPE_MAX DBL_MAX
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/// \brief Input numerical values over time. Get sum, average, highest, lowest, standard deviation on recent or all-time values
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class RAK_DLL_EXPORT StatisticsHistory
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{
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public:
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// GetInstance() and DestroyInstance(instance*)
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STATIC_FACTORY_DECLARATIONS(StatisticsHistory)
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enum SHErrorCode
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{
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SH_OK,
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SH_UKNOWN_OBJECT,
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SH_UKNOWN_KEY,
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SH_INVALID_PARAMETER,
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};
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enum SHSortOperation
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{
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SH_DO_NOT_SORT,
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SH_SORT_BY_RECENT_SUM_ASCENDING,
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SH_SORT_BY_RECENT_SUM_DESCENDING,
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SH_SORT_BY_LONG_TERM_SUM_ASCENDING,
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SH_SORT_BY_LONG_TERM_SUM_DESCENDING,
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SH_SORT_BY_RECENT_SUM_OF_SQUARES_ASCENDING,
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SH_SORT_BY_RECENT_SUM_OF_SQUARES_DESCENDING,
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SH_SORT_BY_RECENT_AVERAGE_ASCENDING,
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SH_SORT_BY_RECENT_AVERAGE_DESCENDING,
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SH_SORT_BY_LONG_TERM_AVERAGE_ASCENDING,
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SH_SORT_BY_LONG_TERM_AVERAGE_DESCENDING,
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SH_SORT_BY_RECENT_HIGHEST_ASCENDING,
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SH_SORT_BY_RECENT_HIGHEST_DESCENDING,
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SH_SORT_BY_RECENT_LOWEST_ASCENDING,
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SH_SORT_BY_RECENT_LOWEST_DESCENDING,
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SH_SORT_BY_LONG_TERM_HIGHEST_ASCENDING,
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SH_SORT_BY_LONG_TERM_HIGHEST_DESCENDING,
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SH_SORT_BY_LONG_TERM_LOWEST_ASCENDING,
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SH_SORT_BY_LONG_TERM_LOWEST_DESCENDING,
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};
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enum SHDataCategory
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{
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/// Insert values from one set into the other set, in time order
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/// Values at the same time end up in the final set twice
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/// Use when you have additional data points to add to a graph
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DC_DISCRETE,
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/// Add values from one set to values from the other set, at corresponding times
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/// If value at time t does not exist in the other set, linearly extrapolate value for other set based on nearest two data points
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/// longTerm* values are unknown using this method
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/// Use to add two graphs together
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DC_CONTINUOUS
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};
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struct TimeAndValue;
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struct TimeAndValueQueue;
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struct TrackedObjectData
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{
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TrackedObjectData();
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TrackedObjectData(uint64_t _objectId, int _objectType, void *_userData);
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uint64_t objectId;
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int objectType;
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void *userData;
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};
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StatisticsHistory();
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virtual ~StatisticsHistory();
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void SetDefaultTimeToTrack(Time defaultTimeToTrack);
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Time GetDefaultTimeToTrack(void) const;
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bool AddObject(TrackedObjectData tod);
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bool RemoveObject(uint64_t objectId, void **userData);
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void RemoveObjectAtIndex(unsigned int index);
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void Clear(void);
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unsigned int GetObjectCount(void) const;
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StatisticsHistory::TrackedObjectData * GetObjectAtIndex(unsigned int index) const;
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unsigned int GetObjectIndex(uint64_t objectId) const;
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bool AddValueByObjectID(uint64_t objectId, RakString key, SHValueType val, Time curTime, bool combineEqualTimes);
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void AddValueByIndex(unsigned int index, RakString key, SHValueType val, Time curTime, bool combineEqualTimes);
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SHErrorCode GetHistoryForKey(uint64_t objectId, RakString key, TimeAndValueQueue **values, Time curTime) const;
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bool GetHistorySorted(uint64_t objectId, SHSortOperation sortType, DataStructures::List<TimeAndValueQueue *> &values) const;
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void MergeAllObjectsOnKey(RakString key, TimeAndValueQueue *tavqOutput, SHDataCategory dataCategory) const;
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void GetUniqueKeyList(DataStructures::List<RakString> &keys);
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struct TimeAndValue
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{
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Time time;
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SHValueType val;
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};
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struct TimeAndValueQueue
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{
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TimeAndValueQueue();
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~TimeAndValueQueue();
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DataStructures::Queue<TimeAndValue> values;
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Time timeToTrackValues;
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RakString key;
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SHValueType recentSum;
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SHValueType recentSumOfSquares;
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SHValueType longTermSum;
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SHValueType longTermCount;
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SHValueType longTermLowest;
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SHValueType longTermHighest;
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void SetTimeToTrackValues(Time t);
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Time GetTimeToTrackValues(void) const;
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SHValueType GetRecentSum(void) const;
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SHValueType GetRecentSumOfSquares(void) const;
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SHValueType GetLongTermSum(void) const;
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SHValueType GetRecentAverage(void) const;
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SHValueType GetRecentLowest(void) const;
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SHValueType GetRecentHighest(void) const;
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SHValueType GetRecentStandardDeviation(void) const;
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SHValueType GetLongTermAverage(void) const;
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SHValueType GetLongTermLowest(void) const;
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SHValueType GetLongTermHighest(void) const;
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SHValueType GetSumSinceTime(Time t) const;
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Time GetTimeRange(void) const;
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// Merge two sets to output
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static void MergeSets( const TimeAndValueQueue *lhs, SHDataCategory lhsDataCategory, const TimeAndValueQueue *rhs, SHDataCategory rhsDataCategory, TimeAndValueQueue *output );
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// Shrink or expand a sample set to the approximate number given
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// DC_DISCRETE will produce a histogram (sum) while DC_CONTINUOUS will produce an average
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void ResizeSampleSet( int approximateSamples, DataStructures::Queue<StatisticsHistory::TimeAndValue> &blendedSamples, SHDataCategory dataCategory, Time timeClipStart=0, Time timeClipEnd=0 );
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// Clear out all values
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void Clear(void);
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TimeAndValueQueue& operator = ( const TimeAndValueQueue& input );
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/// \internal
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void CullExpiredValues(Time curTime);
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/// \internal
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static SHValueType Interpolate(TimeAndValue t1, TimeAndValue t2, Time time);
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/// \internal
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SHValueType sortValue;
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};
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protected:
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struct TrackedObject;
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public:
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static int TrackedObjectComp( const uint64_t &key, TrackedObject* const &data );
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protected:
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struct TrackedObject
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{
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TrackedObject();
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~TrackedObject();
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TrackedObjectData trackedObjectData;
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DataStructures::Hash<RakNet::RakString, TimeAndValueQueue*, 32, RakNet::RakString::ToInteger> dataQueues;
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};
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DataStructures::OrderedList<uint64_t, TrackedObject*,TrackedObjectComp> objects;
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Time timeToTrack;
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};
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/// \brief Input numerical values over time. Get sum, average, highest, lowest, standard deviation on recent or all-time values
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/// \ingroup PLUGINS_GROUP
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class RAK_DLL_EXPORT StatisticsHistoryPlugin : public PluginInterface2
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{
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public:
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// GetInstance() and DestroyInstance(instance*)
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STATIC_FACTORY_DECLARATIONS(StatisticsHistoryPlugin)
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StatisticsHistory statistics;
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StatisticsHistoryPlugin();
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virtual ~StatisticsHistoryPlugin();
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void SetTrackConnections(bool _addNewConnections, int newConnectionsObjectType, bool _removeLostConnections);
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protected:
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virtual void Update(void);
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virtual void OnClosedConnection(const SystemAddress &systemAddress, RakNetGUID rakNetGUID, PI2_LostConnectionReason lostConnectionReason );
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virtual void OnNewConnection(const SystemAddress &systemAddress, RakNetGUID rakNetGUID, bool isIncoming);
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// Too slow
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// virtual bool UsesReliabilityLayer(void) const {return true;}
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// virtual void OnDirectSocketSend(const char *data, const BitSize_t bitsUsed, SystemAddress remoteSystemAddress);
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// virtual void OnDirectSocketReceive(const char *data, const BitSize_t bitsUsed, SystemAddress remoteSystemAddress);
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bool addNewConnections;
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bool removeLostConnections;
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int newConnectionsObjectType;
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};
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} // namespace RakNet
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#endif // __STATISTICS_HISTORY_H
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#endif // _RAKNET_SUPPORT_*
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