v8::CppHeap Class Reference

#include <v8-cppgc.h>

Public Member Functions
virtual	~CppHeap ()=default
cppgc::AllocationHandle &	GetAllocationHandle ()
cppgc::HeapHandle &	GetHeapHandle ()
void	Terminate ()
cppgc::HeapStatistics	CollectStatistics (cppgc::HeapStatistics::DetailLevel detail_level)
void	CollectCustomSpaceStatisticsAtLastGC (std::vector< cppgc::CustomSpaceIndex > custom_spaces, std::unique_ptr< CustomSpaceStatisticsReceiver > receiver)
void	EnableDetachedGarbageCollectionsForTesting ()
void	CollectGarbageForTesting (cppgc::EmbedderStackState stack_state)
void	CollectGarbageInYoungGenerationForTesting (cppgc::EmbedderStackState stack_state)
v8::WrapperDescriptor	wrapper_descriptor () const

Static Public Member Functions
static std::unique_ptr< CppHeap >	Create (v8::Platform *platform, const CppHeapCreateParams &params)

Friends
class	internal::CppHeap

Detailed Description

A heap for allocating managed C++ objects.

Similar to v8::Isolate, the heap may only be accessed from one thread at a time. The heap may be used from different threads using the v8::Locker/v8::Unlocker APIs which is different from generic Oilpan.

Constructor & Destructor Documentation

~CppHeap()

virtual v8::CppHeap::~CppHeap ( )

virtualdefault

Member Function Documentation

CollectCustomSpaceStatisticsAtLastGC()

void v8::CppHeap::CollectCustomSpaceStatisticsAtLastGC	(	std::vector< cppgc::CustomSpaceIndex >	custom_spaces,
		std::unique_ptr< CustomSpaceStatisticsReceiver >	receiver
	)

Collects statistics for the given spaces and reports them to the receiver.

Parameters

custom_spaces	a collection of custom space indicies.
receiver	an object that gets the results.

CollectGarbageForTesting()

void v8::CppHeap::CollectGarbageForTesting

(

cppgc::EmbedderStackState

stack_state

)

Performs a stop-the-world garbage collection for testing purposes.

Parameters

stack_state

The stack state to assume for the garbage collection.

CollectGarbageInYoungGenerationForTesting()

void v8::CppHeap::CollectGarbageInYoungGenerationForTesting

(

cppgc::EmbedderStackState

stack_state

)

Performs a stop-the-world minor garbage collection for testing purposes.

Parameters

stack_state

The stack state to assume for the garbage collection.

CollectStatistics()

cppgc::HeapStatistics v8::CppHeap::CollectStatistics

(

cppgc::HeapStatistics::DetailLevel

detail_level

)

Parameters

detail_level

specifies whether should return detailed statistics or only brief summary statistics.

Returns

current CppHeap statistics regarding memory consumption and utilization.

Create()

static std::unique_ptr< CppHeap > v8::CppHeap::Create ( v8::Platform *  platform, const CppHeapCreateParams &  params  )

static

EnableDetachedGarbageCollectionsForTesting()

void v8::CppHeap::EnableDetachedGarbageCollectionsForTesting

(

)

Enables a detached mode that allows testing garbage collection using cppgc::testing APIs. Once used, the heap cannot be attached to an Isolate anymore.

GetAllocationHandle()

cppgc::AllocationHandle & v8::CppHeap::GetAllocationHandle

(

)

Returns

the opaque handle for allocating objects using MakeGarbageCollected().

GetHeapHandle()

cppgc::HeapHandle & v8::CppHeap::GetHeapHandle

(

)

Returns

the opaque heap handle which may be used to refer to this heap in other APIs. Valid as long as the underlying CppHeap is alive.

Terminate()

void v8::CppHeap::Terminate

(

)

Terminate clears all roots and performs multiple garbage collections to reclaim potentially newly created objects in destructors.

After this call, object allocation is prohibited.

wrapper_descriptor()

v8::WrapperDescriptor v8::CppHeap::wrapper_descriptor

(

)

const

Returns

the wrapper descriptor of this CppHeap.

Friends And Related Function Documentation

internal::CppHeap

friend class internal::CppHeap

friend

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

• include/v8-cppgc.h