dart::Timer Class Reference

#include <timer.h>

Inheritance diagram for dart::Timer:

Public Member Functions
	Timer (int64_t elapsed, int64_t elapsed_cpu)
	Timer ()
	~Timer ()
void	Start ()
void	Stop ()
int64_t	TotalElapsedTime () const
int64_t	TotalElapsedTimeCpu () const
int64_t	MaxContiguous () const
void	Reset ()
bool	IsReset () const
void	AddTotal (const Timer &other)
const char *	FormatElapsedHumanReadable (Zone *zone) const
Public Member Functions inherited from dart::ValueObject
	ValueObject ()
	~ValueObject ()

Static Public Member Functions
static const char *	FormatTime (Zone *zone, int64_t total)
static const char *	FormatElapsedHumanReadable (Zone *zone, int64_t total_elapsed, int64_t total_elapsed_cpu)

Static Public Attributes
static constexpr double	kCpuTimeReportingThreshold = 0.05

Detailed Description

Definition at line 103 of file timer.h.

Constructor & Destructor Documentation

Timer() [1/2]

dart::Timer::Timer ( int64_t  elapsed, int64_t  elapsed_cpu  )

inline

Definition at line 105 of file timer.h.

      : monotonic_(elapsed), cpu_(elapsed) {}

Timer() [2/2]

dart::Timer::Timer ( )

inline

Definition at line 107 of file timer.h.

{ Reset(); }

~Timer()

dart::Timer::~Timer ( )

inline

Definition at line 108 of file timer.h.

{}

Member Function Documentation

AddTotal()

void dart::Timer::AddTotal ( const Timer &  other )

inline

Definition at line 135 of file timer.h.

                                    {
    monotonic_.AddTotal(other.monotonic_);
    cpu_.AddTotal(other.cpu_);
  }

FormatElapsedHumanReadable() [1/2]

const char * dart::Timer::FormatElapsedHumanReadable ( Zone *  zone ) const

inline

Definition at line 140 of file timer.h.

                                                           {
    return FormatElapsedHumanReadable(zone, TotalElapsedTime(),
                                      TotalElapsedTimeCpu());
  }

FormatElapsedHumanReadable() [2/2]

static const char * dart::Timer::FormatElapsedHumanReadable ( Zone *  zone, int64_t  total_elapsed, int64_t  total_elapsed_cpu  )

inlinestatic

Definition at line 162 of file timer.h.

                                                                           {
    if ((total_elapsed == 0) ||
        static_cast<double>(Utils::Abs(total_elapsed - total_elapsed_cpu) /
                            total_elapsed) < kCpuTimeReportingThreshold) {
      return FormatTime(zone, total_elapsed);
    } else {
      return OS::SCreate(zone, "%s (cpu %s)", FormatTime(zone, total_elapsed),
                         FormatTime(zone, total_elapsed_cpu));
    }
  }

FormatTime()

static const char * dart::Timer::FormatTime ( Zone *  zone, int64_t  total  )

inlinestatic

Definition at line 145 of file timer.h.

                                                           {
    if (total > kMicrosecondsPerSecond) {
      return OS::SCreate(zone, "%6.2f s", MicrosecondsToSeconds(total));
    } else if (total > kMicrosecondsPerMillisecond) {
      return OS::SCreate(zone, "%6.2f ms", MicrosecondsToMilliseconds(total));
    } else {
      return OS::SCreate(zone, "%6" Pd64 " \u00B5s", total);
    }
  }

IsReset()

bool dart::Timer::IsReset ( ) const

inline

Definition at line 133 of file timer.h.

{ return monotonic_.IsReset(); }

MaxContiguous()

int64_t dart::Timer::MaxContiguous ( ) const

inline

Definition at line 126 of file timer.h.

{ return monotonic_.MaxContiguous(); }

Reset()

void dart::Timer::Reset ( )

inline

Definition at line 128 of file timer.h.

               {
    monotonic_.Reset();
    cpu_.Reset();
  }

Start()

void dart::Timer::Start ( )

inline

Definition at line 111 of file timer.h.

               {
    cpu_.Start();
    monotonic_.Start();
  }

Stop()

void dart::Timer::Stop ( )

inline

Definition at line 117 of file timer.h.

              {
    cpu_.Stop();
    monotonic_.Stop();
  }

TotalElapsedTime()

int64_t dart::Timer::TotalElapsedTime ( ) const

inline

Definition at line 123 of file timer.h.

{ return monotonic_.TotalElapsedTime(); }

TotalElapsedTimeCpu()

int64_t dart::Timer::TotalElapsedTimeCpu ( ) const

inline

Definition at line 124 of file timer.h.

{ return cpu_.TotalElapsedTime(); }

Member Data Documentation

kCpuTimeReportingThreshold

constexpr double dart::Timer::kCpuTimeReportingThreshold = 0.05

staticconstexpr

Definition at line 155 of file timer.h.

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

• third_party/dart-lang/sdk/runtime/vm/timer.h