KisLatencyTracker Class Reference

#include <kis_latency_tracker.h>

Inheritance diagram for KisLatencyTracker:

Public Member Functions
	KisLatencyTracker (int windowSize=500)
virtual void	push (qint64 timestamp) override
Public Member Functions inherited from KisScalarTracker< qint64 >
	KisScalarTracker (const QString &name, int windowSize=500)
virtual	~KisScalarTracker ()
Public Member Functions inherited from KisShared
bool	deref ()
bool	ref ()
int	refCount ()
QAtomicInt *	sharedWeakReference ()

Protected Member Functions
virtual qint64	currentTimestamp () const =0
Protected Member Functions inherited from KisScalarTracker< qint64 >
virtual QString	format (qint64 mean, qint64 variance, qint64 max)
virtual void	print (const QString &message)
Protected Member Functions inherited from KisShared
	KisShared ()
	~KisShared ()

Detailed Description

KisLatencyTracker tracks the time it takes events to reach a certain point in the program.

Definition at line 136 of file kis_latency_tracker.h.

Constructor & Destructor Documentation

KisLatencyTracker()

KisLatencyTracker::KisLatencyTracker

(

int

windowSize = 500

)

Create a tracker with the given window size.

Parameters

window

The maximum number of elements to take into account for calculation of max, mean and variance values.

Definition at line 9 of file kis_latency_tracker.cpp.

                                                   :
    KisScalarTracker<qint64>("event latency", windowSize)
{
}

Member Function Documentation

currentTimestamp()

virtual qint64 KisLatencyTracker::currentTimestamp ( ) const

protectedpure virtual

Returns

The timestamp of "right now" in a frame that is comparable to those timestamps given to push().

Implemented in KisInputManager::Private::TabletLatencyTracker.

push()

void KisLatencyTracker::push ( qint64 timestamp )

overridevirtual

Register that an event with the given timestamp has arrived just now.

Parameters

timestamp

Timestamp of the event that just arrived (the difference to the current time is the latency).

Reimplemented from KisScalarTracker< qint64 >.

Definition at line 14 of file kis_latency_tracker.cpp.

{
    const qint64 latency = currentTimestamp() - timestamp;
    KisScalarTracker<qint64>::push(latency);
}

References currentTimestamp(), and KisScalarTracker< T >::push().

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

• libs/global/kis_latency_tracker.h
• libs/global/kis_latency_tracker.cpp