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chronon::observe::EventCounter

Counter plus optional first-class timeline instant emission. More...

#include <EventCounter.hpp>

Public Functions​

Name
const std::string &unit() const
voidreset()
EventCounter &operator=(const EventCounter & ) =delete
EventCounter &operator=(EventCounter && ) =default
EventCounter &operator+=(uint64_t delta)
EventCounter &operator++()
operator const Counter &() const
operator Counter &()
const std::string &name() const
template <FixedString Name,typename Cat ,typename... Items>
void		mark(Cat category, Items &&... items)
template <FixedString Name,typename Cat ,typename... Items>
void		mark(uint64_t delta, Cat category, Items &&... items)
boolisRegistered() const
CounterIdid() const
uint64_tget() const
const std::string &description() const
Counter &counter()
const Counter &counter() const
voidadd(uint64_t delta =1)
template <FixedString Name,typename Cat ,typename... Items>
void		add(uint64_t delta, Cat category, Items &&... items)
EventCounter(ObservableUnit * owner, std::string_view name, std::string_view description ="", std::string_view unit ="")
EventCounter(const EventCounter & ) =delete
EventCounter(EventCounter && ) =default

Detailed Description​

class chronon::observe::EventCounter;

Counter plus optional first-class timeline instant emission.

Use this for aggregate metrics that may also need timestamped samples. add()/operator++/operator+= update the aggregate counter only; mark() updates the counter and emits a first-class timeline instant.

EventCounter uart_tx_{this, "chars_tx", "Characters transmitted", "chars"};

uart_tx_.mark<"uart_tx">(UART, arg<"byte">(byte));
flushed_instrs_.add(removed);
flushed_instrs_.mark<"decode_flush">(removed, FLUSH, arg<"remaining">(n));

Public Functions Documentation​

function unit​

inline const std::string & unit() const

function reset​

inline void reset()

function operator=​

EventCounter & operator=(
    const EventCounter & 
) =delete

function operator=​

EventCounter & operator=(
    EventCounter && 
) =default

function operator+=​

inline EventCounter & operator+=(
    uint64_t delta
)

function operator++​

inline EventCounter & operator++()

function operator const Counter &​

inline operator const Counter &() const

function operator Counter &​

inline operator Counter &()

function name​

inline const std::string & name() const

function mark​

template <FixedString Name,
typename Cat ,
typename... Items>
inline void mark(
    Cat category,
    Items &&... items
)

function mark​

template <FixedString Name,
typename Cat ,
typename... Items>
inline void mark(
    uint64_t delta,
    Cat category,
    Items &&... items
)

function isRegistered​

inline bool isRegistered() const

function id​

inline CounterId id() const

function get​

inline uint64_t get() const

function description​

inline const std::string & description() const

function counter​

inline Counter & counter()

function counter​

inline const Counter & counter() const

function add​

inline void add(
    uint64_t delta =1
)

function add​

template <FixedString Name,
typename Cat ,
typename... Items>
inline void add(
    uint64_t delta,
    Cat category,
    Items &&... items
)

function EventCounter​

inline EventCounter(
    ObservableUnit * owner,
    std::string_view name,
    std::string_view description ="",
    std::string_view unit =""
)

function EventCounter​

EventCounter(
    const EventCounter & 
) =delete

function EventCounter​

EventCounter(
    EventCounter && 
) =default

Updated on 2026-07-06 at 09:03:34 +0000