DtSplitContentTimer Class Reference

This class helps DtVrfMessageInterface handle big messages. More...

Public Types
typedef std::map < DtSplitMessageKey, DtTime >	DtTimeoutMap
	A collection of message ID and timeout time pairs.

Public Member Functions
	DtSplitContentTimer ()
	Contructor.
virtual	~DtSplitContentTimer ()
	destructor
virtual void	addTimeoutEntry (const DtSplitMessageKey &key, DtTime startTime)
	Start a timer for the given key.
virtual void	clear ()
	remove all entries.
virtual void	evaluateTimeouts (DtTime timeNow, DtSplitContentExpiredFcn pFcn, void *pUsr)
	Walk through the DtTimeoutMap, invoke DtSplitContentExpiredFcn for things needing to be purged.
virtual bool	findEntry (const DtSplitMessageKey &key, DtTime &retTime)
	returns true if entry found, with expiration time returned in retTime.
virtual void	removeTimeoutEntry (const DtSplitMessageKey &key)
	searches for an entry matching key, removes it.
virtual DtTime	lastTimeoutCheckTime () const
	returns the last time a full check was made.
virtual void	setLastTimeoutCheckTime (DtTime nTime)
	returns the last time a full check was made.
virtual DtTime	timeoutCheckInterval () const
	time, in seconds, that the collection should be revisited for evaluation.
virtual void	setTimeoutCheckInterval (DtTime nSecs)
	time, in seconds, that the collection should be revisited for evaluation.
virtual DtTime	timeoutDuration () const
	time, in seconds, before an entry is considered expired.
virtual void	setTimeoutDuration (DtTime nSecs)
	time, in seconds, before an entry is considered expired.

Protected Member Functions
	DtSplitContentTimer (const DtSplitContentTimer &orig)
	these aren't used
const DtSplitContentTimer &	operator= (const DtSplitContentTimer &orig)
	these aren't used

Protected Attributes
DtTime	myLastTimeoutCheckTime
DtTime	myTimeoutCheckInterval
DtTime	myTimeoutDuration
DtTimeoutMap	myTimeoutMap

Static Protected Attributes
static const DtTime	theDefaultTimeoutCheckInterval
static const DtTime	theDefaultTimeoutDuration

Detailed Description

This class helps DtVrfMessageInterface handle big messages.

DtSplitContentTimer is a simple class that helps track when messages should be purged. Classes like DtVrfMessageInterface and DtSignalMessageTransporter gather multiple chunks of message content. DtSplitContentTimer is used to track when those chunks first arrive. If a full sequence of content fails to arrive by expiration time, DtSplitContentTimer will signal the expiration of those content chunks.

Member Typedef Documentation

typedef std::map<DtSplitMessageKey, DtTime> DtSplitContentTimer::DtTimeoutMap

A collection of message ID and timeout time pairs.

Constructor & Destructor Documentation

DtSplitContentTimer::DtSplitContentTimer

(

)

Contructor.

virtual DtSplitContentTimer::~DtSplitContentTimer ( )

virtual

destructor

DtSplitContentTimer::DtSplitContentTimer ( const DtSplitContentTimer &  orig )

protected

these aren't used

Member Function Documentation

virtual void DtSplitContentTimer::addTimeoutEntry ( const DtSplitMessageKey &  key, DtTime  startTime  )

virtual

Start a timer for the given key.

Starts a timer for the given key. Expiration time is computed as startTime + myTimeoutDuration

virtual void DtSplitContentTimer::clear ( )

virtual

remove all entries.

virtual void DtSplitContentTimer::evaluateTimeouts ( DtTime  timeNow, DtSplitContentExpiredFcn  pFcn, void *  pUsr  )

virtual

Walk through the DtTimeoutMap, invoke DtSplitContentExpiredFcn for things needing to be purged.

Caller should pass a valid DtSplitContentExpiredFcn to pFcn, and (this) to pUsr. It's up to the caller to invoke removeTimeoutEntry(). Note, if timeNow is not >= myLastTimeoutCheckTime+myTimeoutCheckInterval, the call will be ignored.

virtual bool DtSplitContentTimer::findEntry ( const DtSplitMessageKey &  key, DtTime &  retTime  )

virtual

returns true if entry found, with expiration time returned in retTime.

DtTime DtSplitContentTimer::lastTimeoutCheckTime ( ) const

inlinevirtual

returns the last time a full check was made.

References myLastTimeoutCheckTime.

void DtSplitContentTimer::setLastTimeoutCheckTime ( DtTime  nTime )

inlinevirtual

returns the last time a full check was made.

References myLastTimeoutCheckTime.

DtTime DtSplitContentTimer::timeoutCheckInterval ( ) const

inlinevirtual

time, in seconds, that the collection should be revisited for evaluation.

References myTimeoutCheckInterval.

void DtSplitContentTimer::setTimeoutCheckInterval ( DtTime  nSecs )

inlinevirtual

time, in seconds, that the collection should be revisited for evaluation.

References myTimeoutCheckInterval.

DtTime DtSplitContentTimer::timeoutDuration ( ) const

inlinevirtual

time, in seconds, before an entry is considered expired.

References myTimeoutDuration.

void DtSplitContentTimer::setTimeoutDuration ( DtTime  nSecs )

inlinevirtual

time, in seconds, before an entry is considered expired.

References myTimeoutDuration.

virtual void DtSplitContentTimer::removeTimeoutEntry ( const DtSplitMessageKey &  key )

virtual

searches for an entry matching key, removes it.

const DtSplitContentTimer& DtSplitContentTimer::operator= ( const DtSplitContentTimer &  orig )

protected

these aren't used

Member Data Documentation

DtTime DtSplitContentTimer::myLastTimeoutCheckTime

protected

Referenced by lastTimeoutCheckTime(), and setLastTimeoutCheckTime().

DtTime DtSplitContentTimer::myTimeoutCheckInterval

protected

Referenced by setTimeoutCheckInterval(), and timeoutCheckInterval().

DtTime DtSplitContentTimer::myTimeoutDuration

protected

Referenced by setTimeoutDuration(), and timeoutDuration().

DtTimeoutMap DtSplitContentTimer::myTimeoutMap

protected

const DtTime DtSplitContentTimer::theDefaultTimeoutCheckInterval

staticprotected

const DtTime DtSplitContentTimer::theDefaultTimeoutDuration

staticprotected

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The documentation for this class was generated from the following file:

• /exports/nfedora7-1/nightly/docs/vrforcesDevelopment.tot/include/vrfutil/splitContentTimer.h