v8::ExternalMemoryAccounter Class Reference

#include <v8-external-memory-accounter.h>

Public Member Functions
	ExternalMemoryAccounter ()=default
	~ExternalMemoryAccounter ()
	ExternalMemoryAccounter (ExternalMemoryAccounter &&)
ExternalMemoryAccounter &	operator= (ExternalMemoryAccounter &&)
	ExternalMemoryAccounter (const ExternalMemoryAccounter &)=delete
ExternalMemoryAccounter &	operator= (const ExternalMemoryAccounter &)=delete
void	Increase (Isolate *isolate, size_t size)
void	Update (Isolate *isolate, int64_t delta)
void	Decrease (Isolate *isolate, size_t size)

Static Public Member Functions
static int64_t	GetTotalAmountOfExternalAllocatedMemoryForTesting (const Isolate *isolate)

Detailed Description

This class is used to give V8 an indication of the amount of externally allocated memory that is kept alive by JavaScript objects. V8 uses this to decide when to perform garbage collections. Registering externally allocated memory will trigger garbage collections more often than it would otherwise in an attempt to garbage collect the JavaScript objects that keep the externally allocated memory alive. Instances of ExternalMemoryAccounter check that the reported external memory is back to 0 on destruction.

Constructor & Destructor Documentation

ExternalMemoryAccounter() [1/3]

v8::ExternalMemoryAccounter::ExternalMemoryAccounter ( )

default

~ExternalMemoryAccounter()

v8::ExternalMemoryAccounter::~ExternalMemoryAccounter

(

)

ExternalMemoryAccounter() [2/3]

v8::ExternalMemoryAccounter::ExternalMemoryAccounter

(

ExternalMemoryAccounter &&

)

ExternalMemoryAccounter() [3/3]

v8::ExternalMemoryAccounter::ExternalMemoryAccounter ( const ExternalMemoryAccounter &  )

delete

Member Function Documentation

Decrease()

void v8::ExternalMemoryAccounter::Decrease	(	Isolate *	isolate,
		size_t	size
	)

Reports an decrease of size bytes of external memory.

GetTotalAmountOfExternalAllocatedMemoryForTesting()

static int64_t v8::ExternalMemoryAccounter::GetTotalAmountOfExternalAllocatedMemoryForTesting ( const Isolate *  isolate )

static

Returns the amount of external memory registered for isolate.

Increase()

void v8::ExternalMemoryAccounter::Increase	(	Isolate *	isolate,
		size_t	size
	)

Reports an increase of size bytes of external memory.

operator=() [1/2]

ExternalMemoryAccounter & v8::ExternalMemoryAccounter::operator= ( const ExternalMemoryAccounter &  )

delete

operator=() [2/2]

ExternalMemoryAccounter & v8::ExternalMemoryAccounter::operator=

(

ExternalMemoryAccounter &&

)

Update()

void v8::ExternalMemoryAccounter::Update	(	Isolate *	isolate,
		int64_t	delta
	)

Reports an update of delta bytes of external memory.

---

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

• include/v8-external-memory-accounter.h