cpid::MetricsContext Class Reference

#include <metrics.h>

Classes
class	Timer

Public Types
using	Timestamp = uint64_t
using	Event = std::pair< Timestamp, float >
using	Events = std::pair< Timestamp, std::vector< float >>
using	TimeInterval = double
using	Reducer = std::function< float(float, float)>

Public Member Functions
void	pushEvent (std::string const &key, float value=1.0)
void	pushEvents (std::string const &key, std::vector< float > values)
Event	getLastEvent (std::string const &key) const
std::vector< Event >	getLastEvents (std::string const &key, size_t n) const
float	getLastEventValue (std::string const &key) const
bool	hasEvent (std::string const &key) const
std::unordered_map< std::string, float >	getMeanEventValues () const
std::unordered_map< std::string, float >	reduceEventValues (const Reducer &reducer, float initValue) const
	Behaves exactly as std::accumulate on all the events streams. More...
void	incCounter (std::string const &key, float amount=1.0)
void	setCounter (std::string const &key, float amount)
bool	hasCounter (std::string const &key) const
float	getCounter (std::string const &key) const
float	getCounter (std::string const &key, float defaultValue) const
void	snapshotCounter (std::string const &counterKey, std::string const &eventKey, float defaultValue)
TimeInterval	getLastInterval (std::string const &key) const
std::unordered_map< std::string, float >	getMeanIntervals () const
std::unordered_map< std::string, float >	reduceIntervals (const Reducer &reducer, float initValue) const
	Behaves exactly as std::accumulate on all the intervals streams. More...
void	dumpJson (std::string const &path) const
void	dumpJson (std::ostream &) const
void	loadJson (std::string const &path)
void	loadJson (std::istream &)
void	clear ()
bool	operator== (const MetricsContext &) const

Protected Attributes
std::unordered_map< std::string, std::vector< Event > >	timeSeries_
std::unordered_map< std::string, std::vector< Events > >	timeSeriesS_
std::unordered_map< std::string, float >	counters_
std::unordered_map< std::string, std::vector< TimeInterval > >	intervals_
std::mutex	mutex_

Member Typedef Documentation

using cpid::MetricsContext::Event = std::pair<Timestamp, float>

using cpid::MetricsContext::Events = std::pair<Timestamp, std::vector<float>>

using cpid::MetricsContext::Reducer = std::function<float(float, float)>

using cpid::MetricsContext::TimeInterval = double

using cpid::MetricsContext::Timestamp = uint64_t

Member Function Documentation

void MetricsContext::clear

(

)

void MetricsContext::dumpJson

(

std::string const &

path

)

const

void MetricsContext::dumpJson

(

std::ostream &

o

)

const

float MetricsContext::getCounter

(

std::string const &

key

)

const

float MetricsContext::getCounter	(	std::string const &	key,
		float	defaultValue
	)		const

MetricsContext::Event MetricsContext::getLastEvent

(

std::string const &

key

)

const

std::vector< MetricsContext::Event > MetricsContext::getLastEvents	(	std::string const &	key,
		size_t	n
	)		const

float MetricsContext::getLastEventValue

(

std::string const &

key

)

const

MetricsContext::TimeInterval MetricsContext::getLastInterval

(

std::string const &

key

)

const

std::unordered_map< std::string, float > MetricsContext::getMeanEventValues

(

)

const

std::unordered_map< std::string, float > MetricsContext::getMeanIntervals

(

)

const

bool MetricsContext::hasCounter

(

std::string const &

key

)

const

bool MetricsContext::hasEvent

(

std::string const &

key

)

const

void MetricsContext::incCounter	(	std::string const &	key,
		float	amount = 1.0
	)

void MetricsContext::loadJson

(

std::string const &

path

)

void MetricsContext::loadJson

(

std::istream &

is

)

bool MetricsContext::operator==

(

const MetricsContext &

o

)

const

void MetricsContext::pushEvent	(	std::string const &	key,
		float	value = 1.0
	)

void MetricsContext::pushEvents	(	std::string const &	key,
		std::vector< float >	values
	)

std::unordered_map< std::string, float > MetricsContext::reduceEventValues	(	const Reducer &	reducer,
		float	initValue
	)		const

Behaves exactly as std::accumulate on all the events streams.

std::unordered_map< std::string, float > MetricsContext::reduceIntervals	(	const Reducer &	reducer,
		float	initValue
	)		const

Behaves exactly as std::accumulate on all the intervals streams.

void MetricsContext::setCounter	(	std::string const &	key,
		float	amount
	)

void MetricsContext::snapshotCounter	(	std::string const &	counterKey,
		std::string const &	eventKey,
		float	defaultValue
	)

Member Data Documentation

std::unordered_map<std::string, float> cpid::MetricsContext::counters_

protected

std::unordered_map<std::string, std::vector<TimeInterval> > cpid::MetricsContext::intervals_

protected

std::mutex cpid::MetricsContext::mutex_

mutableprotected

std::unordered_map<std::string, std::vector<Event> > cpid::MetricsContext::timeSeries_

protected

std::unordered_map<std::string, std::vector<Events> > cpid::MetricsContext::timeSeriesS_

protected

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

• cpid/metrics.h
• cpid/metrics.cpp