utils::SlidingInterval< T > Class Template Reference

#include <userver/utils/sliding_interval.hpp>

Detailed Description

template<typename T>
class utils::SlidingInterval< T >

Sliding interval of values that provides functions to compute average, min and max values from the last window_size values of interval.

It fits for small window_size values because has O(window_size) complexity on most operations.

See also

utils::statistics::MinMaxAvg for a concurrent safe computation over a whole measurement interval.

Definition at line 27 of file sliding_interval.hpp.

Public Member Functions
	SlidingInterval (std::size_t window_size)
	Create a SlidingInterval of window_size values.
void	Update (T value)
	replaces the oldest value in interval with value, i.e slides the interval.
T	GetSmoothed () const
T	GetMinimal () const
T	GetMaximum () const
std::size_t	GetWindowSize () const

Constructor & Destructor Documentation

SlidingInterval()

template<typename T >

utils::SlidingInterval< T >::SlidingInterval ( std::size_t window_size )

inlineexplicit

Create a SlidingInterval of window_size values.

Definition at line 30 of file sliding_interval.hpp.

Member Function Documentation

GetMaximum()

template<typename T >

T utils::SlidingInterval< T >::GetMaximum ( ) const

inline

Returns

Maximum value in the interval

Complexity: O(window_size)

Definition at line 57 of file sliding_interval.hpp.

GetMinimal()

template<typename T >

T utils::SlidingInterval< T >::GetMinimal ( ) const

inline

Returns

Minimal value in the interval

Complexity: O(window_size)

Definition at line 52 of file sliding_interval.hpp.

GetSmoothed()

template<typename T >

T utils::SlidingInterval< T >::GetSmoothed ( ) const

inline

Returns

Average value in the interval

Complexity: O(window_size)

Definition at line 45 of file sliding_interval.hpp.

GetWindowSize()

template<typename T >

std::size_t utils::SlidingInterval< T >::GetWindowSize ( ) const

inline

Returns

Elements count in the interval, i.e. window_size passed to constructor.

Definition at line 61 of file sliding_interval.hpp.

Update()

template<typename T >

void utils::SlidingInterval< T >::Update ( T value )

inline

replaces the oldest value in interval with value, i.e slides the interval.

Definition at line 34 of file sliding_interval.hpp.

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

• userver/utils/sliding_interval.hpp