LatencyTracker Class Reference

Fixed-capacity rolling window of network round-trip time samples. More...

#include <latency_tracker.h>

Classes
struct	Stats

Public Member Functions
void	addSample (qint64 ms)
Stats	stats () const
QList< qint64 >	recentSamples () const
	Snapshot of the current window in chronological order (oldest first).
void	clear ()

Static Public Attributes
static constexpr int	WindowSize = 64

Private Attributes
std::array< qint64, WindowSize >	samples {}
int	head = 0
	index where the next sample will be written
int	count = 0
	number of valid samples, capped at WindowSize

Detailed Description

Fixed-capacity rolling window of network round-trip time samples.

The hot path (addSample) is a single array store and is intentionally free of allocations, locks, or signal emissions so that recording one sample per completed command cannot affect gameplay performance. Aggregate statistics are only computed on demand in stats(), which callers should throttle.

Member Function Documentation

addSample()

void LatencyTracker::addSample

(

qint64

ms

)

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clear()

void LatencyTracker::clear

(

)

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recentSamples()

QList< qint64 > LatencyTracker::recentSamples

(

)

const

Snapshot of the current window in chronological order (oldest first).

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stats()

LatencyTracker::Stats LatencyTracker::stats

(

)

const

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Member Data Documentation

count

int LatencyTracker::count = 0

private

number of valid samples, capped at WindowSize

head

int LatencyTracker::head = 0

private

index where the next sample will be written

samples

std::array<qint64, WindowSize> LatencyTracker::samples {}

private

WindowSize

int LatencyTracker::WindowSize = 64

staticconstexpr

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

• libcockatrice_network/libcockatrice/network/client/abstract/latency_tracker.h
• libcockatrice_network/libcockatrice/network/client/abstract/latency_tracker.cpp