v8::internal::Histogram Class Reference

#include <counters.h>

Inheritance diagram for v8::internal::Histogram:

Collaboration diagram for v8::internal::Histogram:

Public Member Functions
	Histogram ()
	Histogram (const char *name, int min, int max, int num_buckets, Isolate *isolate)
void	AddSample (int sample)
bool	Enabled ()
void	Reset ()

Protected Member Functions
void *	GetHistogram ()
const char *	name ()
Isolate *	isolate () const

Private Member Functions
void *	CreateHistogram () const

Private Attributes
const char *	name_
int	min_
int	max_
int	num_buckets_
void *	histogram_
bool	lookup_done_
Isolate *	isolate_

Detailed Description

Definition at line 169 of file counters.h.

Constructor & Destructor Documentation

Histogram() [1/2]

v8::internal::Histogram::Histogram ( )

inline

Definition at line 171 of file counters.h.

{ }

Histogram() [2/2]

v8::internal::Histogram::Histogram ( const char *  name, int  min, int  max, int  num_buckets, Isolate *  isolate  )

inline

Definition at line 172 of file counters.h.

      : name_(name),
        min_(min),
        max_(max),
        num_buckets_(num_buckets),
        histogram_(NULL),
        lookup_done_(false),
        isolate_(isolate) { }

Member Function Documentation

AddSample()

void v8::internal::Histogram::AddSample

(

int

sample

)

Definition at line 25 of file counters.cc.

                                    {
  if (Enabled()) {
    isolate()->stats_table()->AddHistogramSample(histogram_, sample);
  }
}

References v8::internal::StatsTable::AddHistogramSample(), Enabled(), histogram_, isolate(), and v8::internal::Isolate::stats_table().

Referenced by v8::internal::HistogramTimer::Stop().

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CreateHistogram()

void * v8::internal::Histogram::CreateHistogram ( ) const

private

Definition at line 31 of file counters.cc.

                                       {
  return isolate()->stats_table()->
      CreateHistogram(name_, min_, max_, num_buckets_);
}

References isolate(), max_, min_, name_, num_buckets_, and v8::internal::Isolate::stats_table().

Referenced by GetHistogram().

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Enabled()

bool v8::internal::Histogram::Enabled ( )

inline

Definition at line 189 of file counters.h.

                 {
    return GetHistogram() != NULL;
  }

References GetHistogram(), and NULL.

Referenced by AddSample(), v8::internal::HistogramTimer::Running(), v8::internal::HistogramTimer::Start(), and v8::internal::HistogramTimer::Stop().

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GetHistogram()

void* v8::internal::Histogram::GetHistogram ( )

inlineprotected

Definition at line 200 of file counters.h.

                       {
    if (!lookup_done_) {
      lookup_done_ = true;
      histogram_ = CreateHistogram();
    }
    return histogram_;
  }

References CreateHistogram(), histogram_, and lookup_done_.

Referenced by Enabled().

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isolate()

Isolate* v8::internal::Histogram::isolate ( ) const

inlineprotected

Definition at line 209 of file counters.h.

{ return isolate_; }

References isolate_.

Referenced by AddSample(), CreateHistogram(), v8::internal::HistogramTimer::Start(), and v8::internal::HistogramTimer::Stop().

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name()

const char* v8::internal::Histogram::name ( )

inlineprotected

Definition at line 208 of file counters.h.

{ return name_; }

References name_.

Referenced by v8::internal::HistogramTimer::Start(), and v8::internal::HistogramTimer::Stop().

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Reset()

void v8::internal::Histogram::Reset ( )

inline

Definition at line 194 of file counters.h.

               {
    lookup_done_ = false;
  }

References lookup_done_.

Member Data Documentation

histogram_

void* v8::internal::Histogram::histogram_

private

Definition at line 218 of file counters.h.

Referenced by AddSample(), and GetHistogram().

isolate_

Isolate* v8::internal::Histogram::isolate_

private

Definition at line 220 of file counters.h.

Referenced by isolate().

lookup_done_

bool v8::internal::Histogram::lookup_done_

private

Definition at line 219 of file counters.h.

Referenced by GetHistogram(), and Reset().

max_

int v8::internal::Histogram::max_

private

Definition at line 216 of file counters.h.

Referenced by CreateHistogram().

min_

int v8::internal::Histogram::min_

private

Definition at line 215 of file counters.h.

Referenced by CreateHistogram().

name_

const char* v8::internal::Histogram::name_

private

Definition at line 214 of file counters.h.

Referenced by CreateHistogram(), and name().

num_buckets_

int v8::internal::Histogram::num_buckets_

private

Definition at line 217 of file counters.h.

Referenced by CreateHistogram().

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

• /mnt/V8SourceCode/src/counters.h
• /mnt/V8SourceCode/src/counters.cc