Public Member Functions
	CADatabase ()

	~CADatabase ()

SINT32	insert (UINT8 key[16], UINT64 timestamp)
	Inserts this key in the replay DB. More...

SINT32	start ()

SINT32	stop ()

SINT32	test ()

Static Public Member Functions
static SINT32	measurePerformance (UINT8 *strLogFile, UINT32 lowerBoundEntries, UINT32 upperBoundEntries, UINT32 stepBy, UINT32 meassuresPerStep, UINT32 insertsPerMeasure)
	This mehtod can be used to measure the performance of the Replay database. More...

Private Member Functions
t_databaseInfo *	createDBInfo ()
	Creates and initialises a dbinfo struct. More...

SINT32	clearDB (t_databaseInfo *pDB)
	clears the whole database pDB - but does not delete the hashtable pDB More...

SINT32	deleteDB (t_databaseInfo *&pDB)
	Deletes the whole database pDB. More...

SINT32	nextClock ()

SINT32	fill (UINT32 nrOfEntries)
	Pre fills the database with nrOfEntries random entries. More...

SINT32	simulateInsert (UINT8 key[16])
	This is a modified copy of insert() which simulates the insert() function as close as possible without actually changing the replay database. More...

Private Attributes
UINT64	m_lastSwitch

t_databaseInfo *	m_currDatabase

t_databaseInfo *	m_nextDatabase

t_databaseInfo *	m_prevDatabase

volatile bool	m_bRun

volatile SINT32	m_currentClock

CAMutex *	m_pMutex

CAThread *	m_pThread

Friends
THREAD_RETURN	db_loopMaintenance (void *param)

Constructor & Destructor Documentation

◆ CADatabase()

CADatabase::CADatabase ( )

References createDBInfo(), m_currDatabase, m_currentClock, m_lastSwitch, m_nextDatabase, m_pMutex, m_prevDatabase, and m_pThread.

Referenced by measurePerformance().

◆ ~CADatabase()

CADatabase::~CADatabase ( )

References deleteDB(), CAMutex::lock(), m_currDatabase, m_nextDatabase, m_pMutex, m_prevDatabase, stop(), and CAMutex::unlock().

Member Function Documentation

◆ clearDB()

SINT32 CADatabase::clearDB ( t_databaseInfo * pDB )

private

clears the whole database pDB - but does not delete the hashtable pDB

Parameters

pDB	database to delete

References _t_database_info::m_pHashTable, and _t_database_entry::next.

Referenced by deleteDB(), and nextClock().

◆ createDBInfo()

t_databaseInfo * CADatabase::createDBInfo ( )

private

Creates and initialises a dbinfo struct.

Referenced by CADatabase().

◆ deleteDB()

SINT32 CADatabase::deleteDB ( t_databaseInfo *& pDB )

private

Deletes the whole database pDB.

Parameters

pDB	database to delete

References clearDB(), and E_SUCCESS.

Referenced by ~CADatabase().

◆ fill()

SINT32 CADatabase::fill ( UINT32 nrOfEntries )

private

Pre fills the database with nrOfEntries random entries.

Parameters

nrOfEntries number of entries to put in the database

References E_SUCCESS, getRandom(), and insert().

Referenced by measurePerformance(), and test().

◆ insert()

SINT32 CADatabase::insert	(	UINT8	key[16],
		UINT64	timestamp
	)

Inserts this key in the replay DB.

References E_SUCCESS, E_UNKNOWN, FUTURE_TOLERANCE, _t_database_entry::key, CAMutex::lock(), m_currDatabase, m_lastSwitch, m_nextDatabase, _t_database_info::m_pHashTable, m_pMutex, m_prevDatabase, _t_database_info::m_u32Size, _t_database_entry::next, SECONDS_PER_INTERVALL, and CAMutex::unlock().

Referenced by fill(), CAFirstMixA::loop(), CALastMixA::loop(), and CALastMixB::loop().

◆ measurePerformance()

SINT32 CADatabase::measurePerformance	(	UINT8 *	strLogFile,
		UINT32	lowerBoundEntries,
		UINT32	upperBoundEntries,
		UINT32	stepBy,
		UINT32	meassuresPerStep,
		UINT32	insertsPerMeasure
	)

static

This mehtod can be used to measure the performance of the Replay database.

The results are stored in a file in csv format. Ths method will do several measures with different numbers of elements in the database. These number could be specified using owerBoundEntries,upperBoundEntries and stepBy.

Parameters

strLogFile	the log file name
lowerBoundEntries	the number of entries in the database (at beginn)
upperBoundEntries	the number of entries in the database (at end)
stepBy	how many entries should be added for each new measurement
meassuresPerStep	how many measure values should be generate per step. That means that the experiement is repeated this many times.
insertsPerMeasure	one measure value will be the time: (Total Insertion Time)/insertsPerMeasure