folly::detail::CompressionCounter Class Reference

Wrapper around the makeCompressionCounterHandler() extension point. More...

#include <Counters.h>

Public Member Functions
	CompressionCounter ()
	CompressionCounter (folly::io::CodecType codecType, folly::StringPiece codecName, folly::Optional< int > level, CompressionCounterKey key, CompressionCounterType counterType)
void	operator+= (double sum)
void	operator++ ()
void	operator++ (int)
bool	hasImplementation ()

Private Member Functions
void	performLazyInit ()

Private Attributes
bool	initialized_ {false}
folly::Function< folly::Function< void(double)>)>	initialize_
folly::Function< void(double)>	increment_

Detailed Description

Wrapper around the makeCompressionCounterHandler() extension point.

Definition at line 70 of file Counters.h.

Constructor & Destructor Documentation

folly::detail::CompressionCounter::CompressionCounter ( )

inline

Definition at line 72 of file Counters.h.

{}

folly::detail::CompressionCounter::CompressionCounter ( folly::io::CodecType  codecType, folly::StringPiece  codecName, folly::Optional< int >  level, CompressionCounterKey  key, CompressionCounterType  counterType  )

inline

Definition at line 73 of file Counters.h.

References folly::makeCompressionCounterHandler().

                                          {
    initialize_ = [=]() {
      return makeCompressionCounterHandler(
          codecType, codecName, level, key, counterType);
    };
    DCHECK(!initialize_.hasAllocatedMemory());
  }

Member Function Documentation

bool folly::detail::CompressionCounter::hasImplementation ( )

inline

Definition at line 101 of file Counters.h.

                           {
    performLazyInit();
    return static_cast<bool>(increment_);
  }

void folly::detail::CompressionCounter::operator++ ( )

inline

Definition at line 93 of file Counters.h.

                    {
    *this += 1.0;
  }

void folly::detail::CompressionCounter::operator++ ( int  )

inline

Definition at line 97 of file Counters.h.

                       {
    *this += 1.0;
  }

void folly::detail::CompressionCounter::operator+= ( double  sum )

inline

Definition at line 86 of file Counters.h.

                              {
    performLazyInit();
    if (increment_) {
      increment_(sum);
    }
  }

void folly::detail::CompressionCounter::performLazyInit ( )

inlineprivate

Definition at line 107 of file Counters.h.

                         {
    if (!initialized_) {
      initialized_ = true;
      increment_ = initialize_();
      initialize_ = {};
    }
  }

Member Data Documentation

folly::Function<void(double)> folly::detail::CompressionCounter::increment_

private

Definition at line 117 of file Counters.h.

folly::Function<folly::Function<void(double)>)> folly::detail::CompressionCounter::initialize_

private

Definition at line 116 of file Counters.h.

bool folly::detail::CompressionCounter::initialized_ {false}

private

Definition at line 115 of file Counters.h.

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

• proxygen/folly/folly/compression/Counters.h