#include <read-only-spaces.h>

Inheritance diagram for v8::internal::ReadOnlySpace:

Collaboration diagram for v8::internal::ReadOnlySpace:

Public Types
enum class	SealMode { kDetachFromHeap , kDetachFromHeapAndUnregisterMemory , kDoNotDetachFromHeap }

Public Member Functions
V8_EXPORT_PRIVATE	ReadOnlySpace (Heap *heap)

void	DetachPagesAndAddToArtifacts (ReadOnlyArtifacts *artifacts)

V8_EXPORT_PRIVATE	~ReadOnlySpace () override

virtual V8_EXPORT_PRIVATE void	TearDown (MemoryAllocator *memory_allocator)

bool	IsDetached () const

bool	writable () const

bool	Contains (Address a)=delete

bool	Contains (Tagged< Object > o)=delete

V8_EXPORT_PRIVATE AllocationResult	AllocateRaw (int size_in_bytes, AllocationAlignment alignment)

V8_EXPORT_PRIVATE void	ClearStringPaddingIfNeeded ()

V8_EXPORT_PRIVATE void	Seal (SealMode ro_mode)

void	RepairFreeSpacesAfterDeserialization ()

size_t	Size () const override

V8_EXPORT_PRIVATE size_t	CommittedPhysicalMemory () const override

const std::vector< ReadOnlyPageMetadata * > &	pages () const

Address	top () const

Address	limit () const

size_t	Capacity () const

size_t	IndexOf (const MemoryChunkMetadata *chunk) const

bool	ContainsSlow (Address addr) const

V8_EXPORT_PRIVATE void	ShrinkPages ()

Address	FirstPageAddress () const

void	EnsurePage ()

Public Member Functions inherited from v8::internal::BaseSpace
	BaseSpace (const BaseSpace &)=delete

BaseSpace &	operator= (const BaseSpace &)=delete

Heap *	heap () const

AllocationSpace	identity () const

virtual size_t	CommittedMemory () const

virtual size_t	MaximumCommittedMemory () const

Protected Member Functions
void	SetPermissionsForPages (MemoryAllocator *memory_allocator, PageAllocator::Permission access)

Protected Member Functions inherited from v8::internal::BaseSpace
	BaseSpace (Heap *heap, AllocationSpace id)

virtual	~BaseSpace ()=default

void	AccountCommitted (size_t bytes)

void	AccountUncommitted (size_t bytes)

Protected Attributes
bool	is_marked_read_only_ = false

AllocationStats	accounting_stats_

std::vector< ReadOnlyPageMetadata * >	pages_

Address	top_ = kNullAddress

Address	limit_ = kNullAddress

Protected Attributes inherited from v8::internal::BaseSpace
Heap *	heap_

AllocationSpace	id_

std::atomic< size_t >	committed_ {0}

size_t	max_committed_ = 0

Private Member Functions
AllocationResult	AllocateRawUnaligned (int size_in_bytes)

AllocationResult	AllocateRawAligned (int size_in_bytes, AllocationAlignment alignment)

Tagged< HeapObject >	TryAllocateLinearlyAligned (int size_in_bytes, AllocationAlignment alignment)

size_t	AllocateNextPage ()

size_t	AllocateNextPageAt (Address pos)

void	InitializePageForDeserialization (ReadOnlyPageMetadata *page, size_t area_size_in_bytes)

void	FinalizeSpaceForDeserialization ()

void	EnsureSpaceForAllocation (int size_in_bytes)

void	FreeLinearAllocationArea ()

Private Attributes
size_t	capacity_ = 0

Friends
class	Heap

class	ReadOnlyHeapImageDeserializer

Additional Inherited Members
Static Public Member Functions inherited from v8::internal::Malloced
static void *	operator new (size_t size)

static void	operator delete (void *p)

Detailed Description

Definition at line 148 of file read-only-spaces.h.

Member Enumeration Documentation

◆ SealMode

enum class v8::internal::ReadOnlySpace::SealMode

strong

Enumerator
kDetachFromHeap
kDetachFromHeapAndUnregisterMemory
kDoNotDetachFromHeap

Definition at line 173 of file read-only-spaces.h.

Constructor & Destructor Documentation

◆ ReadOnlySpace()

v8::internal::ReadOnlySpace::ReadOnlySpace ( Heap * heap )

explicit

Definition at line 109 of file read-only-spaces.cc.

◆ ~ReadOnlySpace()

v8::internal::ReadOnlySpace::~ReadOnlySpace ( )

overridedefault

Member Function Documentation

◆ AllocateNextPage()

size_t v8::internal::ReadOnlySpace::AllocateNextPage ( )

private

Definition at line 526 of file read-only-spaces.cc.

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◆ AllocateNextPageAt()

size_t v8::internal::ReadOnlySpace::AllocateNextPageAt ( Address pos )

private

Definition at line 535 of file read-only-spaces.cc.

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◆ AllocateRaw()

AllocationResult v8::internal::ReadOnlySpace::AllocateRaw	(	int	size_in_bytes,
		AllocationAlignment	alignment )

Definition at line 460 of file read-only-spaces.cc.

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◆ AllocateRawAligned()

AllocationResult v8::internal::ReadOnlySpace::AllocateRawAligned	(	int	size_in_bytes,
		AllocationAlignment	alignment )

private

Definition at line 417 of file read-only-spaces.cc.

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◆ AllocateRawUnaligned()

AllocationResult v8::internal::ReadOnlySpace::AllocateRawUnaligned ( int size_in_bytes )

private

Definition at line 439 of file read-only-spaces.cc.

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◆ Capacity()

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

inline

Definition at line 194 of file read-only-spaces.h.

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◆ ClearStringPaddingIfNeeded()

V8_EXPORT_PRIVATE void v8::internal::ReadOnlySpace::ClearStringPaddingIfNeeded ( )

◆ CommittedPhysicalMemory()

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

overridevirtual

Implements v8::internal::BaseSpace.

Definition at line 320 of file read-only-spaces.cc.

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◆ Contains() [1/2]

bool v8::internal::ReadOnlySpace::Contains ( Address a )

delete

◆ Contains() [2/2]

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

delete

◆ ContainsSlow()

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

Definition at line 211 of file read-only-spaces.cc.

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◆ DetachPagesAndAddToArtifacts()

void v8::internal::ReadOnlySpace::DetachPagesAndAddToArtifacts ( ReadOnlyArtifacts * artifacts )

Definition at line 130 of file read-only-spaces.cc.

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◆ EnsurePage()

void v8::internal::ReadOnlySpace::EnsurePage ( )

Definition at line 347 of file read-only-spaces.cc.

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◆ EnsureSpaceForAllocation()

void v8::internal::ReadOnlySpace::EnsureSpaceForAllocation ( int size_in_bytes )

private

Definition at line 367 of file read-only-spaces.cc.

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◆ FinalizeSpaceForDeserialization()

void v8::internal::ReadOnlySpace::FinalizeSpaceForDeserialization ( )

private

Definition at line 559 of file read-only-spaces.cc.

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◆ FirstPageAddress()

Address v8::internal::ReadOnlySpace::FirstPageAddress ( ) const

inline

Definition at line 209 of file read-only-spaces.h.

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◆ FreeLinearAllocationArea()

void v8::internal::ReadOnlySpace::FreeLinearAllocationArea ( )

private

Definition at line 331 of file read-only-spaces.cc.

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◆ IndexOf()

size_t v8::internal::ReadOnlySpace::IndexOf ( const MemoryChunkMetadata * chunk ) const

Definition at line 519 of file read-only-spaces.cc.

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◆ InitializePageForDeserialization()

void v8::internal::ReadOnlySpace::InitializePageForDeserialization	(	ReadOnlyPageMetadata *	page,
		size_t	area_size_in_bytes )

private

Definition at line 552 of file read-only-spaces.cc.

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◆ IsDetached()

bool v8::internal::ReadOnlySpace::IsDetached ( ) const

inline

Definition at line 160 of file read-only-spaces.h.

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◆ limit()

Address v8::internal::ReadOnlySpace::limit ( ) const

inline

Definition at line 193 of file read-only-spaces.h.

◆ pages()

const std::vector< ReadOnlyPageMetadata * > & v8::internal::ReadOnlySpace::pages ( ) const

inline

Definition at line 191 of file read-only-spaces.h.

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◆ RepairFreeSpacesAfterDeserialization()

void v8::internal::ReadOnlySpace::RepairFreeSpacesAfterDeserialization ( )

Definition at line 175 of file read-only-spaces.cc.

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◆ Seal()

void v8::internal::ReadOnlySpace::Seal ( SealMode ro_mode )

Definition at line 191 of file read-only-spaces.cc.

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◆ SetPermissionsForPages()

void v8::internal::ReadOnlySpace::SetPermissionsForPages	(	MemoryAllocator *	memory_allocator,
		PageAllocator::Permission	access )

protected

Definition at line 159 of file read-only-spaces.cc.

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◆ ShrinkPages()

void v8::internal::ReadOnlySpace::ShrinkPages ( )

Definition at line 498 of file read-only-spaces.cc.

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◆ Size()

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

inlineoverridevirtual

Implements v8::internal::BaseSpace.

Definition at line 188 of file read-only-spaces.h.

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◆ TearDown()

void v8::internal::ReadOnlySpace::TearDown ( MemoryAllocator * memory_allocator )

virtual

Reimplemented in v8::internal::SharedReadOnlySpace.

Definition at line 122 of file read-only-spaces.cc.

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◆ top()

Address v8::internal::ReadOnlySpace::top ( ) const

inline

Definition at line 192 of file read-only-spaces.h.

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◆ TryAllocateLinearlyAligned()

Tagged< HeapObject > v8::internal::ReadOnlySpace::TryAllocateLinearlyAligned	(	int	size_in_bytes,
		AllocationAlignment	alignment )

private

Definition at line 393 of file read-only-spaces.cc.

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◆ writable()

bool v8::internal::ReadOnlySpace::writable ( ) const

inline

Definition at line 162 of file read-only-spaces.h.

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Friends And Related Symbol Documentation

◆ Heap

friend class Heap

friend

Definition at line 247 of file read-only-spaces.h.

◆ ReadOnlyHeapImageDeserializer

friend class ReadOnlyHeapImageDeserializer

friend

Definition at line 248 of file read-only-spaces.h.

Member Data Documentation

◆ accounting_stats_

AllocationStats v8::internal::ReadOnlySpace::accounting_stats_

protected

Definition at line 221 of file read-only-spaces.h.

◆ capacity_

size_t v8::internal::ReadOnlySpace::capacity_ = 0

private

Definition at line 245 of file read-only-spaces.h.

◆ is_marked_read_only_

bool v8::internal::ReadOnlySpace::is_marked_read_only_ = false

protected

Definition at line 218 of file read-only-spaces.h.

◆ limit_

Address v8::internal::ReadOnlySpace::limit_ = kNullAddress

protected

Definition at line 226 of file read-only-spaces.h.

◆ pages_

std::vector<ReadOnlyPageMetadata*> v8::internal::ReadOnlySpace::pages_

protected

Definition at line 223 of file read-only-spaces.h.

◆ top_

Address v8::internal::ReadOnlySpace::top_ = kNullAddress

protected

Definition at line 225 of file read-only-spaces.h.

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

src/heap/read-only-spaces.h
src/heap/read-only-spaces.cc

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ SealMode

Constructor & Destructor Documentation

◆ ReadOnlySpace()

◆ ~ReadOnlySpace()

Member Function Documentation

◆ AllocateNextPage()

◆ AllocateNextPageAt()

◆ AllocateRaw()

◆ AllocateRawAligned()

◆ AllocateRawUnaligned()

◆ Capacity()

◆ ClearStringPaddingIfNeeded()

◆ CommittedPhysicalMemory()

◆ Contains() [1/2]

◆ Contains() [2/2]

◆ ContainsSlow()

◆ DetachPagesAndAddToArtifacts()

◆ EnsurePage()

◆ EnsureSpaceForAllocation()

◆ FinalizeSpaceForDeserialization()

◆ FirstPageAddress()

◆ FreeLinearAllocationArea()

◆ IndexOf()

◆ InitializePageForDeserialization()

◆ IsDetached()

◆ limit()

◆ pages()

◆ RepairFreeSpacesAfterDeserialization()

◆ Seal()

◆ SetPermissionsForPages()

◆ ShrinkPages()

◆ Size()

◆ TearDown()

◆ top()

◆ TryAllocateLinearlyAligned()

◆ writable()

Friends And Related Symbol Documentation

◆ Heap

◆ ReadOnlyHeapImageDeserializer

Member Data Documentation

◆ accounting_stats_

◆ capacity_

◆ is_marked_read_only_

◆ limit_

◆ pages_

◆ top_