#include <paged-spaces.h>

Inheritance diagram for v8::internal::PagedSpaceBase:

Collaboration diagram for v8::internal::PagedSpaceBase:

Classes
class	ConcurrentAllocationMutex

Public Types
using	iterator = PageIterator

using	const_iterator = ConstPageIterator

Public Member Functions
	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

virtual void	ReleasePage (PageMetadata *page)

virtual size_t	AddPage (PageMetadata *page)

virtual void	RemovePage (PageMetadata *page)

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)

Static Public Attributes
static const size_t	kCompactionMemoryWanted = 500 * KB

Protected Member Functions
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
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

Private Member Functions
template<bool during_sweep>
V8_INLINE size_t	FreeInternal (Address start, size_t size_in_bytes)

bool	SupportsConcurrentAllocation () const

Friends
class	IncrementalMarking

class	MarkCompactCollector

class	PagedSpaceAllocatorPolicy

class	heap::HeapTester

Detailed Description

Definition at line 111 of file paged-spaces.h.

Member Typedef Documentation

◆ const_iterator

using v8::internal::PagedSpaceBase::const_iterator = ConstPageIterator

Definition at line 115 of file paged-spaces.h.

◆ iterator

using v8::internal::PagedSpaceBase::iterator = PageIterator

Definition at line 114 of file paged-spaces.h.

Constructor & Destructor Documentation

◆ PagedSpaceBase()

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

Definition at line 68 of file paged-spaces.cc.

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◆ ~PagedSpaceBase()

v8::internal::PagedSpaceBase::~PagedSpaceBase ( )

inlineoverride

Definition at line 123 of file paged-spaces.h.

Member Function Documentation

◆ AddPage()

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

virtual

Reimplemented in v8::internal::PagedSpaceForNewSpace.

Definition at line 250 of file paged-spaces.cc.

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◆ AddPageImpl()

void v8::internal::PagedSpaceBase::AddPageImpl ( PageMetadata * page )

protected

Definition at line 230 of file paged-spaces.cc.

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◆ AddRangeToActiveSystemPages()

void v8::internal::PagedSpaceBase::AddRangeToActiveSystemPages	(	PageMetadata *	page,
		Address	start,
		Address	end )

Definition at line 499 of file paged-spaces.cc.

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◆ AdjustDifferenceInAllocatedBytes()

virtual void v8::internal::PagedSpaceBase::AdjustDifferenceInAllocatedBytes ( size_t diff )

inlinevirtual

Reimplemented in v8::internal::StickySpace.

Definition at line 293 of file paged-spaces.h.

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◆ AreaSize()

int v8::internal::PagedSpaceBase::AreaSize ( ) const

inline

Definition at line 239 of file paged-spaces.h.

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◆ Available()

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

override

Definition at line 323 of file paged-spaces.cc.

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◆ begin() [1/2]

iterator v8::internal::PagedSpaceBase::begin ( )

inline

Definition at line 276 of file paged-spaces.h.

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◆ begin() [2/2]

const_iterator v8::internal::PagedSpaceBase::begin ( ) const

inline

Definition at line 279 of file paged-spaces.h.

◆ CanExpand()

bool v8::internal::PagedSpaceBase::CanExpand ( size_t size ) const

◆ Capacity()

size_t v8::internal::PagedSpaceBase::Capacity ( ) const

inline

Definition at line 134 of file paged-spaces.h.

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◆ ClearAllocatorState()

void v8::internal::PagedSpaceBase::ClearAllocatorState ( )

inline

Definition at line 151 of file paged-spaces.h.

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◆ committed_physical_memory()

size_t v8::internal::PagedSpaceBase::committed_physical_memory ( ) const

inlineprotected

Definition at line 309 of file paged-spaces.h.

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◆ CommittedPhysicalMemory()

size_t v8::internal::PagedSpaceBase::CommittedPhysicalMemory ( ) const

override

Definition at line 156 of file paged-spaces.cc.

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◆ compaction_space_kind()

CompactionSpaceKind v8::internal::PagedSpaceBase::compaction_space_kind ( ) const

inline

Definition at line 245 of file paged-spaces.h.

◆ Contains() [1/2]

bool v8::internal::PagedSpaceBase::Contains ( Address a ) const

inline

Definition at line 78 of file paged-spaces-inl.h.

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◆ Contains() [2/2]

bool v8::internal::PagedSpaceBase::Contains ( Tagged< Object > o ) const

inline

Definition at line 82 of file paged-spaces-inl.h.

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◆ ContainsSlow()

bool v8::internal::PagedSpaceBase::ContainsSlow ( Address addr ) const

Definition at line 193 of file paged-spaces.cc.

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◆ CountTotalPages()

int v8::internal::PagedSpaceBase::CountTotalPages ( ) const

Definition at line 319 of file paged-spaces.cc.

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◆ DecreaseAllocatedBytes()

void v8::internal::PagedSpaceBase::DecreaseAllocatedBytes	(	size_t	bytes,
		PageMetadata *	page )

inline

Definition at line 189 of file paged-spaces.h.

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◆ DecreaseCapacity()

void v8::internal::PagedSpaceBase::DecreaseCapacity ( size_t bytes )

inline

Definition at line 195 of file paged-spaces.h.

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◆ DecrementCommittedPhysicalMemory()

void v8::internal::PagedSpaceBase::DecrementCommittedPhysicalMemory ( size_t decrement_value )

Definition at line 172 of file paged-spaces.cc.

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◆ end() [1/2]

iterator v8::internal::PagedSpaceBase::end ( )

inline

Definition at line 277 of file paged-spaces.h.

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◆ end() [2/2]

const_iterator v8::internal::PagedSpaceBase::end ( ) const

inline

Definition at line 280 of file paged-spaces.h.

◆ executable()

Executability v8::internal::PagedSpaceBase::executable ( ) const

inline

Definition at line 131 of file paged-spaces.h.

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◆ first_page() [1/2]

const PageMetadata * v8::internal::PagedSpaceBase::first_page ( ) const

inlineoverride

Definition at line 265 of file paged-spaces.h.

◆ first_page() [2/2]

PageMetadata * v8::internal::PagedSpaceBase::first_page ( )

inlineoverride

Definition at line 262 of file paged-spaces.h.

◆ Free()

size_t v8::internal::PagedSpaceBase::Free	(	Address	start,
		size_t	size_in_bytes )

Definition at line 115 of file paged-spaces-inl.h.

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◆ FreeDuringSweep()

size_t v8::internal::PagedSpaceBase::FreeDuringSweep	(	Address	start,
		size_t	size_in_bytes )

Definition at line 119 of file paged-spaces-inl.h.

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◆ FreeInternal() [1/2]

template<bool during_sweep>

size_t v8::internal::PagedSpaceBase::FreeInternal	(	Address	start,
		size_t	size_in_bytes )

Definition at line 88 of file paged-spaces-inl.h.

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◆ FreeInternal() [2/2]

template<bool during_sweep>

V8_INLINE size_t v8::internal::PagedSpaceBase::FreeInternal	(	Address	start,
		size_t	size_in_bytes )

private

◆ GetObjectIterator()

std::unique_ptr< ObjectIterator > v8::internal::PagedSpaceBase::GetObjectIterator ( Heap * heap )

override

Definition at line 359 of file paged-spaces.cc.

◆ HasPages()

bool v8::internal::PagedSpaceBase::HasPages ( ) const

inlineprotected

Definition at line 300 of file paged-spaces.h.

◆ IncreaseAllocatedBytes()

void v8::internal::PagedSpaceBase::IncreaseAllocatedBytes	(	size_t	bytes,
		PageMetadata *	page )

inline

Definition at line 192 of file paged-spaces.h.

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◆ IncreaseCapacity()

void v8::internal::PagedSpaceBase::IncreaseCapacity ( size_t bytes )

inline

Definition at line 198 of file paged-spaces.h.

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◆ IncrementCommittedPhysicalMemory()

void v8::internal::PagedSpaceBase::IncrementCommittedPhysicalMemory ( size_t increment_value )

Definition at line 164 of file paged-spaces.cc.

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◆ InitializePage()

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

override

Definition at line 79 of file paged-spaces.cc.

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◆ is_compaction_space()

bool v8::internal::PagedSpaceBase::is_compaction_space ( ) const

inline

Definition at line 241 of file paged-spaces.h.

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◆ last_page() [1/2]

const PageMetadata * v8::internal::PagedSpaceBase::last_page ( ) const

inlineoverride

Definition at line 272 of file paged-spaces.h.

◆ last_page() [2/2]

PageMetadata * v8::internal::PagedSpaceBase::last_page ( )

inlineoverride

Definition at line 269 of file paged-spaces.h.

◆ MergeCompactionSpace()

void v8::internal::PagedSpaceBase::MergeCompactionSpace ( CompactionSpace * other )

Definition at line 112 of file paged-spaces.cc.

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◆ mutex()

base::Mutex * v8::internal::PagedSpaceBase::mutex ( )

inline

Definition at line 257 of file paged-spaces.h.

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◆ NotifyNewPage()

virtual void v8::internal::PagedSpaceBase::NotifyNewPage ( PageMetadata * page )

inlineprotectedvirtual

Reimplemented in v8::internal::CompactionSpace.

Definition at line 307 of file paged-spaces.h.

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◆ RawAllocateBackground()

V8_WARN_UNUSED_RESULT std::optional< std::pair< Address, size_t > > v8::internal::PagedSpaceBase::RawAllocateBackground	(	LocalHeap *	local_heap,
		size_t	min_size_in_bytes,
		size_t	max_size_in_bytes,
		AllocationOrigin	origin )

◆ ReduceActiveSystemPages()

void v8::internal::PagedSpaceBase::ReduceActiveSystemPages	(	PageMetadata *	page,
		ActiveSystemPages	active_system_pages )

Definition at line 514 of file paged-spaces.cc.

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◆ RefillFreeList()

void v8::internal::PagedSpaceBase::RefillFreeList ( )

virtual

Reimplemented in v8::internal::CompactionSpace.

Definition at line 544 of file paged-spaces.cc.

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◆ RefineAllocatedBytesAfterSweeping()

void v8::internal::PagedSpaceBase::RefineAllocatedBytesAfterSweeping ( PageMetadata * page )

Definition at line 201 of file paged-spaces.cc.

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◆ ReleasePage()

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

virtual

Reimplemented in v8::internal::OldSpace, v8::internal::PagedSpaceForNewSpace, and v8::internal::SharedSpace.

Definition at line 332 of file paged-spaces.cc.

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◆ ReleasePageImpl()

void v8::internal::PagedSpaceBase::ReleasePageImpl	(	PageMetadata *	page,
		MemoryAllocator::FreeMode	free_mode )

protected

Definition at line 336 of file paged-spaces.cc.

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◆ RelinkFreeListCategories()

size_t v8::internal::PagedSpaceBase::RelinkFreeListCategories ( PageMetadata * page )

Definition at line 529 of file paged-spaces.cc.

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◆ RemovePage()

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

virtual

Reimplemented in v8::internal::PagedSpaceForNewSpace.

Definition at line 255 of file paged-spaces.cc.

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◆ RemovePageSafe()

PageMetadata * v8::internal::PagedSpaceBase::RemovePageSafe ( int size_in_bytes )

Definition at line 222 of file paged-spaces.cc.

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◆ ResetFreeList()

void v8::internal::PagedSpaceBase::ResetFreeList ( )

Definition at line 282 of file paged-spaces.cc.

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◆ Size()

size_t v8::internal::PagedSpaceBase::Size ( ) const

inlineoverride

Definition at line 170 of file paged-spaces.h.

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◆ snapshotable()

virtual bool v8::internal::PagedSpaceBase::snapshotable ( ) const

inlineprotectedvirtual

Reimplemented in v8::internal::CompactionSpace.

Definition at line 298 of file paged-spaces.h.

◆ SupportsConcurrentAllocation()

bool v8::internal::PagedSpaceBase::SupportsConcurrentAllocation ( ) const

inlineprivate

Definition at line 349 of file paged-spaces.h.

◆ TearDown()

void v8::internal::PagedSpaceBase::TearDown ( )

protected

Definition at line 95 of file paged-spaces.cc.

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◆ TryExpand()

bool v8::internal::PagedSpaceBase::TryExpand	(	LocalHeap *	local_heap,
		AllocationOrigin	origin )

Definition at line 290 of file paged-spaces.cc.

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◆ UnlinkFreeListCategories()

void v8::internal::PagedSpaceBase::UnlinkFreeListCategories ( PageMetadata * page )

Definition at line 522 of file paged-spaces.cc.

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◆ Waste()

size_t v8::internal::PagedSpaceBase::Waste ( ) const

Definition at line 328 of file paged-spaces.cc.

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Friends And Related Symbol Documentation

◆ heap::HeapTester

friend class heap::HeapTester

friend

Definition at line 358 of file paged-spaces.h.

◆ IncrementalMarking

friend class IncrementalMarking

friend

Definition at line 353 of file paged-spaces.h.

◆ MarkCompactCollector

friend class MarkCompactCollector

friend

Definition at line 354 of file paged-spaces.h.

◆ PagedSpaceAllocatorPolicy

friend class PagedSpaceAllocatorPolicy

friend

Definition at line 355 of file paged-spaces.h.

Member Data Documentation

◆ accounting_stats_

AllocationStats v8::internal::PagedSpaceBase::accounting_stats_

protected

Definition at line 324 of file paged-spaces.h.

◆ area_size_

size_t v8::internal::PagedSpaceBase::area_size_

protected

Definition at line 321 of file paged-spaces.h.

◆ committed_physical_memory_

std::atomic<size_t> v8::internal::PagedSpaceBase::committed_physical_memory_ {0}

protected

Definition at line 329 of file paged-spaces.h.

◆ compaction_space_kind_

CompactionSpaceKind v8::internal::PagedSpaceBase::compaction_space_kind_

protected

Definition at line 319 of file paged-spaces.h.

◆ executable_

Executability v8::internal::PagedSpaceBase::executable_

protected

Definition at line 317 of file paged-spaces.h.

◆ kCompactionMemoryWanted

const size_t v8::internal::PagedSpaceBase::kCompactionMemoryWanted = 500 * KB

static

Definition at line 117 of file paged-spaces.h.

◆ size_at_last_gc_

size_t v8::internal::PagedSpaceBase::size_at_last_gc_ = 0

protected

Definition at line 332 of file paged-spaces.h.

◆ space_mutex_

base::Mutex v8::internal::PagedSpaceBase::space_mutex_

mutableprotected

Definition at line 327 of file paged-spaces.h.

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

Classes

Public Types

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Private Member Functions

Friends

Detailed Description

Member Typedef Documentation

◆ const_iterator

◆ iterator

Constructor & Destructor Documentation

◆ PagedSpaceBase()

◆ ~PagedSpaceBase()

Member Function Documentation

◆ AddPage()

◆ AddPageImpl()

◆ AddRangeToActiveSystemPages()

◆ AdjustDifferenceInAllocatedBytes()

◆ AreaSize()

◆ Available()

◆ begin() [1/2]

◆ begin() [2/2]

◆ CanExpand()

◆ Capacity()

◆ ClearAllocatorState()

◆ committed_physical_memory()

◆ CommittedPhysicalMemory()

◆ compaction_space_kind()

◆ Contains() [1/2]

◆ Contains() [2/2]

◆ ContainsSlow()

◆ CountTotalPages()

◆ DecreaseAllocatedBytes()

◆ DecreaseCapacity()

◆ DecrementCommittedPhysicalMemory()

◆ end() [1/2]

◆ end() [2/2]

◆ executable()

◆ first_page() [1/2]

◆ first_page() [2/2]

◆ Free()

◆ FreeDuringSweep()

◆ FreeInternal() [1/2]

◆ FreeInternal() [2/2]

◆ GetObjectIterator()

◆ HasPages()

◆ IncreaseAllocatedBytes()

◆ IncreaseCapacity()

◆ IncrementCommittedPhysicalMemory()

◆ InitializePage()

◆ is_compaction_space()

◆ last_page() [1/2]

◆ last_page() [2/2]

◆ MergeCompactionSpace()

◆ mutex()

◆ NotifyNewPage()

◆ RawAllocateBackground()

◆ ReduceActiveSystemPages()

◆ RefillFreeList()

◆ RefineAllocatedBytesAfterSweeping()

◆ ReleasePage()

◆ ReleasePageImpl()

◆ RelinkFreeListCategories()

◆ RemovePage()

◆ RemovePageSafe()

◆ ResetFreeList()

◆ Size()

◆ snapshotable()

◆ SupportsConcurrentAllocation()

◆ TearDown()

◆ TryExpand()

◆ UnlinkFreeListCategories()

◆ Waste()

Friends And Related Symbol Documentation

◆ heap::HeapTester

◆ IncrementalMarking

◆ MarkCompactCollector

◆ PagedSpaceAllocatorPolicy