eventcounter.h
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// -*- C++ -*-
//
// Copyright (C) 2024, Vaclav Haisman. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modifica-
// tion, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
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#ifndef LOG4CPLUS_HELPERS_EVENTCOUNTER_H
#define LOG4CPLUS_HELPERS_EVENTCOUNTER_H
#include <log4cplus/config.hxx>
#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
#pragma once
#endif
#include <log4cplus/thread/syncprims.h>
#include <cstddef>
#include <atomic>
#include <chrono>
namespace log4cplus {
namespace helpers {
class LOG4CPLUS_EXPORT BaseEventCounter
{
public:
BaseEventCounter ();
virtual ~BaseEventCounter ();
virtual std::size_t record_event ();
protected:
std::atomic<std::size_t> event_count {0};
};
class LOG4CPLUS_EXPORT SteadyClockGate
: public BaseEventCounter
{
public:
using Clock = std::chrono::steady_clock;
using Duration = Clock::duration;
using TimePoint = std::chrono::time_point<Clock>;
struct LOG4CPLUS_EXPORT Info
{
~Info ();
std::size_t count;
Duration time_span;
};
SteadyClockGate (SteadyClockGate::Duration pause_duraiton);
virtual ~SteadyClockGate ();
bool latch_open (Info &);
private:
log4cplus::thread::SimpleMutex mtx;
Duration const pause_duration;
TimePoint timeout_point;
TimePoint prev_timeout_point;
};
} // namespace helpers
} // namespace log4cplus
#endif // LOG4CPLUS_HELPERS_EVENTCOUNTER_H
log4cplus::helpers::BaseEventCounter::record_event
virtual std::size_t record_event()
log4cplus::helpers::BaseEventCounter::~BaseEventCounter
virtual ~BaseEventCounter()
log4cplus::helpers::BaseEventCounter::BaseEventCounter
BaseEventCounter()
log4cplus::helpers::BaseEventCounter::event_count
std::atomic< std::size_t > event_count
Definition eventcounter.h:54
log4cplus::helpers::SteadyClockGate::SteadyClockGate
SteadyClockGate(SteadyClockGate::Duration pause_duraiton)
log4cplus::helpers::SteadyClockGate::latch_open
bool latch_open(Info &)
log4cplus::helpers::SteadyClockGate::Duration
Clock::duration Duration
Definition eventcounter.h:63
log4cplus::helpers::SteadyClockGate::Clock
std::chrono::steady_clock Clock
Definition eventcounter.h:62
log4cplus::helpers::SteadyClockGate::TimePoint
std::chrono::time_point< Clock > TimePoint
Definition eventcounter.h:64
log4cplus::helpers::SteadyClockGate::~SteadyClockGate
virtual ~SteadyClockGate()
log4cplus::thread::SimpleMutex
Definition syncprims.h:63
config.hxx
log4cplus::helpers
Definition appender.h:50
log4cplus
Definition appender.h:46
log4cplus::helpers::SteadyClockGate::Info
Definition eventcounter.h:67
log4cplus::helpers::SteadyClockGate::Info::~Info
~Info()
log4cplus::helpers::SteadyClockGate::Info::time_span
Duration time_span
Definition eventcounter.h:71
log4cplus::helpers::SteadyClockGate::Info::count
std::size_t count
Definition eventcounter.h:70
syncprims.h
LOG4CPLUS_EXPORT
#define LOG4CPLUS_EXPORT
Definition win32.h:141