A metric for measuring an integral value. More...

Collaboration diagram for beast::insight::Meter:

[legend]

Public Types
using	value_type = MeterImpl::value_type

Public Member Functions
	Meter ()
	Create a null metric. More...

	Meter (std::shared_ptr< MeterImpl > const &impl)
	Create the metric reference the specified implementation. More...

std::shared_ptr< MeterImpl > const &	impl () const


void	increment (value_type amount) const
	Increment the meter. More...

Meter const &	operator+= (value_type amount) const

Meter const &	operator++ () const

Meter const &	operator++ (int) const

Private Attributes
std::shared_ptr< MeterImpl >	m_impl

Detailed Description

A metric for measuring an integral value.

A meter may be thought of as an increment-only counter.

This is a lightweight reference wrapper which is cheap to copy and assign. When the last reference goes away, the metric is no longer collected.

Definition at line 37 of file Meter.h.

Member Typedef Documentation

◆ value_type

using beast::insight::Meter::value_type = MeterImpl::value_type

Definition at line 40 of file Meter.h.

Constructor & Destructor Documentation

◆ Meter() [1/2]

beast::insight::Meter::Meter ( )

Create a null metric.

A null metric reports no information.

Definition at line 45 of file Meter.h.

◆ Meter() [2/2]

beast::insight::Meter::Meter ( std::shared_ptr< MeterImpl > const & impl )

explicit

Create the metric reference the specified implementation.

Normally this won't be called directly. Instead, call the appropriate factory function in the Collector interface.

See also: Collector.

Definition at line 54 of file Meter.h.

Member Function Documentation

◆ increment()

void beast::insight::Meter::increment ( value_type amount ) const

Increment the meter.

Definition at line 61 of file Meter.h.

◆ operator+=()

Meter const& beast::insight::Meter::operator+= ( value_type amount ) const

Definition at line 68 of file Meter.h.

◆ operator++() [1/2]

Meter const& beast::insight::Meter::operator++ ( ) const

Definition at line 75 of file Meter.h.

◆ operator++() [2/2]

Meter const& beast::insight::Meter::operator++ ( int ) const

Definition at line 82 of file Meter.h.

◆ impl()

std::shared_ptr<MeterImpl> const& beast::insight::Meter::impl ( ) const

Definition at line 90 of file Meter.h.

Member Data Documentation

◆ m_impl

std::shared_ptr<MeterImpl> beast::insight::Meter::m_impl

private

Definition at line 96 of file Meter.h.

Public Types

Public Member Functions

Private Attributes