#include <new-spaces.h>

Inheritance diagram for v8::internal::PagedSpaceForNewSpace:

Collaboration diagram for v8::internal::PagedSpaceForNewSpace:

Public Member Functions
	PagedSpaceForNewSpace (Heap *heap, size_t initial_capacity, size_t min_capacity, size_t max_capacity)

void	TearDown ()

void	Grow (size_t new_capacity)

void	GrowToMaximumCapacityForTesting ()

bool	StartShrinking (size_t new_target_capacity)

void	FinishShrinking ()

size_t	AllocatedSinceLastGC () const

size_t	MinimumCapacity () const

size_t	MaximumCapacity () const

size_t	TotalCapacity () const

Address	first_allocatable_address () const

void	GarbageCollectionEpilogue ()

PageMetadata *	InitializePage (MutablePageMetadata *chunk) final

size_t	AddPage (PageMetadata *page) final

void	RemovePage (PageMetadata *page) final

void	ReleasePage (PageMetadata *page) final

size_t	ExternalBackingStoreBytes (ExternalBackingStoreType type) const final

void	MakeIterable ()

bool	ShouldReleaseEmptyPage () const

void	AllocatePageUpToCapacityForTesting ()

bool	IsPromotionCandidate (const MutablePageMetadata *page) const

size_t	Available () const final

size_t	UsableCapacity () const

AllocatorPolicy *	CreateAllocatorPolicy (MainAllocator *allocator) final

Public Member Functions inherited from v8::internal::PagedSpaceBase
	PagedSpaceBase (Heap *heap, AllocationSpace id, Executability executable, std::unique_ptr< FreeList > free_list, CompactionSpaceKind compaction_space_kind)

	~PagedSpaceBase () override

bool	Contains (Address a) const

bool	Contains (Tagged< Object > o) const

bool	ContainsSlow (Address addr) const

Executability	executable () const

size_t	Capacity () const

size_t	CommittedPhysicalMemory () const override

void	IncrementCommittedPhysicalMemory (size_t increment_value)

void	DecrementCommittedPhysicalMemory (size_t decrement_value)

void	ClearAllocatorState ()

size_t	Available () const override

size_t	Size () const override

size_t	Waste () const

V8_WARN_UNUSED_RESULT std::optional< std::pair< Address, size_t > >	RawAllocateBackground (LocalHeap *local_heap, size_t min_size_in_bytes, size_t max_size_in_bytes, AllocationOrigin origin)

V8_INLINE size_t	Free (Address start, size_t size_in_bytes)

V8_INLINE size_t	FreeDuringSweep (Address start, size_t size_in_bytes)

void	ResetFreeList ()

void	DecreaseAllocatedBytes (size_t bytes, PageMetadata *page)

void	IncreaseAllocatedBytes (size_t bytes, PageMetadata *page)

void	DecreaseCapacity (size_t bytes)

void	IncreaseCapacity (size_t bytes)

PageMetadata *	InitializePage (MutablePageMetadata *chunk) override

PageMetadata *	RemovePageSafe (int size_in_bytes)

bool	CanExpand (size_t size) const

int	CountTotalPages () const

int	AreaSize () const

bool	is_compaction_space () const

CompactionSpaceKind	compaction_space_kind () const

void	MergeCompactionSpace (CompactionSpace *other)

virtual void	RefillFreeList ()

base::Mutex *	mutex ()

void	UnlinkFreeListCategories (PageMetadata *page)

size_t	RelinkFreeListCategories (PageMetadata *page)

PageMetadata *	first_page () override

const PageMetadata *	first_page () const override

PageMetadata *	last_page () override

const PageMetadata *	last_page () const override

iterator	begin ()

iterator	end ()

const_iterator	begin () const

const_iterator	end () const

std::unique_ptr< ObjectIterator >	GetObjectIterator (Heap *heap) override

void	AddRangeToActiveSystemPages (PageMetadata *page, Address start, Address end)

void	ReduceActiveSystemPages (PageMetadata *page, ActiveSystemPages active_system_pages)

bool	TryExpand (LocalHeap *local_heap, AllocationOrigin origin)

void	RefineAllocatedBytesAfterSweeping (PageMetadata *page)

virtual void	AdjustDifferenceInAllocatedBytes (size_t diff)

template<bool during_sweep>
size_t	FreeInternal (Address start, size_t size_in_bytes)

Private Member Functions
bool	AllocatePage ()

Private Attributes
const size_t	min_capacity_

const size_t	max_capacity_

size_t	target_capacity_ = 0

size_t	current_capacity_ = 0

PageMetadata *	last_lab_page_ = nullptr

Friends
class	PagedNewSpaceAllocatorPolicy

Additional Inherited Members
Public Types inherited from v8::internal::PagedSpaceBase
using	iterator = PageIterator

using	const_iterator = ConstPageIterator

Static Public Attributes inherited from v8::internal::PagedSpaceBase
static const size_t	kCompactionMemoryWanted = 500 * KB

Protected Member Functions inherited from v8::internal::PagedSpaceBase
virtual bool	snapshotable () const

bool	HasPages () const

void	TearDown ()

virtual void	NotifyNewPage (PageMetadata *page)

size_t	committed_physical_memory () const

void	ReleasePageImpl (PageMetadata *page, MemoryAllocator::FreeMode free_mode)

void	AddPageImpl (PageMetadata *page)

Protected Attributes inherited from v8::internal::PagedSpaceBase
Executability	executable_

CompactionSpaceKind	compaction_space_kind_

size_t	area_size_

AllocationStats	accounting_stats_

base::Mutex	space_mutex_

std::atomic< size_t >	committed_physical_memory_ {0}

size_t	size_at_last_gc_ = 0

Detailed Description

Definition at line 504 of file new-spaces.h.

Constructor & Destructor Documentation

◆ PagedSpaceForNewSpace()

v8::internal::PagedSpaceForNewSpace::PagedSpaceForNewSpace	(	Heap *	heap,
		size_t	initial_capacity,
		size_t	min_capacity,
		size_t	max_capacity )

explicit

Definition at line 832 of file new-spaces.cc.

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Member Function Documentation

◆ AddPage()

size_t v8::internal::PagedSpaceForNewSpace::AddPage ( PageMetadata * page )

finalvirtual

Reimplemented from v8::internal::PagedSpaceBase.

Definition at line 904 of file new-spaces.cc.

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◆ AllocatedSinceLastGC()

size_t v8::internal::PagedSpaceForNewSpace::AllocatedSinceLastGC ( ) const

Definition at line 950 of file new-spaces.cc.

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◆ AllocatePage()

bool v8::internal::PagedSpaceForNewSpace::AllocatePage ( )

private

Definition at line 931 of file new-spaces.cc.

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◆ AllocatePageUpToCapacityForTesting()

void v8::internal::PagedSpaceForNewSpace::AllocatePageUpToCapacityForTesting ( )

Definition at line 925 of file new-spaces.cc.

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◆ Available()

size_t v8::internal::PagedSpaceForNewSpace::Available ( ) const

final

Definition at line 954 of file new-spaces.cc.

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◆ CreateAllocatorPolicy()

AllocatorPolicy * v8::internal::PagedSpaceForNewSpace::CreateAllocatorPolicy ( MainAllocator * allocator )

inlinefinal

Definition at line 576 of file new-spaces.h.

◆ ExternalBackingStoreBytes()

size_t v8::internal::PagedSpaceForNewSpace::ExternalBackingStoreBytes ( ExternalBackingStoreType type ) const

inlinefinal

Definition at line 549 of file new-spaces.h.

◆ FinishShrinking()

void v8::internal::PagedSpaceForNewSpace::FinishShrinking ( )

Definition at line 887 of file new-spaces.cc.

◆ first_allocatable_address()

Address v8::internal::PagedSpaceForNewSpace::first_allocatable_address ( ) const

inline

Definition at line 533 of file new-spaces.h.

◆ GarbageCollectionEpilogue()

void v8::internal::PagedSpaceForNewSpace::GarbageCollectionEpilogue ( )

inline

Definition at line 538 of file new-spaces.h.

◆ Grow()

void v8::internal::PagedSpaceForNewSpace::Grow ( size_t new_capacity )

Definition at line 869 of file new-spaces.cc.

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◆ GrowToMaximumCapacityForTesting()

void v8::internal::PagedSpaceForNewSpace::GrowToMaximumCapacityForTesting ( )

Definition at line 876 of file new-spaces.cc.

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◆ InitializePage()

PageMetadata * v8::internal::PagedSpaceForNewSpace::InitializePage ( MutablePageMetadata * chunk )

final

Definition at line 850 of file new-spaces.cc.

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◆ IsPromotionCandidate()

bool v8::internal::PagedSpaceForNewSpace::IsPromotionCandidate ( const MutablePageMetadata * page ) const

Definition at line 940 of file new-spaces.cc.

◆ MakeIterable()

void v8::internal::PagedSpaceForNewSpace::MakeIterable ( )

inline

Definition at line 559 of file new-spaces.h.

◆ MaximumCapacity()

size_t v8::internal::PagedSpaceForNewSpace::MaximumCapacity ( ) const

inline

Definition at line 527 of file new-spaces.h.

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◆ MinimumCapacity()

size_t v8::internal::PagedSpaceForNewSpace::MinimumCapacity ( ) const

inline

Definition at line 524 of file new-spaces.h.

◆ ReleasePage()

void v8::internal::PagedSpaceForNewSpace::ReleasePage ( PageMetadata * page )

finalvirtual

Reimplemented from v8::internal::PagedSpaceBase.

Definition at line 915 of file new-spaces.cc.

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◆ RemovePage()

void v8::internal::PagedSpaceForNewSpace::RemovePage ( PageMetadata * page )

finalvirtual

Reimplemented from v8::internal::PagedSpaceBase.

Definition at line 909 of file new-spaces.cc.

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◆ ShouldReleaseEmptyPage()

bool v8::internal::PagedSpaceForNewSpace::ShouldReleaseEmptyPage ( ) const

Definition at line 921 of file new-spaces.cc.

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◆ StartShrinking()

bool v8::internal::PagedSpaceForNewSpace::StartShrinking ( size_t new_target_capacity )

Definition at line 880 of file new-spaces.cc.

◆ TearDown()

void v8::internal::PagedSpaceForNewSpace::TearDown ( )

inline

Definition at line 511 of file new-spaces.h.

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◆ TotalCapacity()

size_t v8::internal::PagedSpaceForNewSpace::TotalCapacity ( ) const

inline

Definition at line 529 of file new-spaces.h.

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◆ UsableCapacity()

size_t v8::internal::PagedSpaceForNewSpace::UsableCapacity ( ) const

inline

Definition at line 571 of file new-spaces.h.

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Friends And Related Symbol Documentation

◆ PagedNewSpaceAllocatorPolicy

friend class PagedNewSpaceAllocatorPolicy

friend

Definition at line 590 of file new-spaces.h.

Member Data Documentation

◆ current_capacity_

size_t v8::internal::PagedSpaceForNewSpace::current_capacity_ = 0

private

Definition at line 586 of file new-spaces.h.

◆ last_lab_page_

PageMetadata* v8::internal::PagedSpaceForNewSpace::last_lab_page_ = nullptr

private

Definition at line 588 of file new-spaces.h.

◆ max_capacity_

const size_t v8::internal::PagedSpaceForNewSpace::max_capacity_

private

Definition at line 584 of file new-spaces.h.

◆ min_capacity_

const size_t v8::internal::PagedSpaceForNewSpace::min_capacity_

private

Definition at line 583 of file new-spaces.h.

◆ target_capacity_

size_t v8::internal::PagedSpaceForNewSpace::target_capacity_ = 0

private

Definition at line 585 of file new-spaces.h.

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

src/heap/new-spaces.h
src/heap/new-spaces.cc

Public Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ PagedSpaceForNewSpace()

Member Function Documentation

◆ AddPage()

◆ AllocatedSinceLastGC()

◆ AllocatePage()

◆ AllocatePageUpToCapacityForTesting()

◆ Available()

◆ CreateAllocatorPolicy()

◆ ExternalBackingStoreBytes()

◆ FinishShrinking()

◆ first_allocatable_address()

◆ GarbageCollectionEpilogue()

◆ Grow()

◆ GrowToMaximumCapacityForTesting()

◆ InitializePage()

◆ IsPromotionCandidate()

◆ MakeIterable()

◆ MaximumCapacity()

◆ MinimumCapacity()

◆ ReleasePage()

◆ RemovePage()

◆ ShouldReleaseEmptyPage()

◆ StartShrinking()

◆ TearDown()

◆ TotalCapacity()

◆ UsableCapacity()

Friends And Related Symbol Documentation

◆ PagedNewSpaceAllocatorPolicy

Member Data Documentation

◆ current_capacity_

◆ last_lab_page_

◆ max_capacity_

◆ min_capacity_

◆ target_capacity_