MapSpace Class Reference

#include <spaces.h>

Inheritance diagram for MapSpace:

Collaboration diagram for MapSpace:

Public Member Functions
	MapSpace (Heap *heap, intptr_t max_capacity, AllocationSpace id)
virtual int	RoundSizeDownToObjectAlignment (int size)
Public Member Functions inherited from FixedSpace
	FixedSpace (Heap *heap, intptr_t max_capacity, AllocationSpace id, int object_size_in_bytes, const char *name)
virtual Address	PageAllocationLimit (Page *page)
int	object_size_in_bytes ()
virtual void	PrepareForMarkCompact ()
Public Member Functions inherited from PagedSpace
	PagedSpace (Heap *heap, intptr_t max_capacity, AllocationSpace id, Executability executable)
virtual	~PagedSpace ()
bool	SetUp ()
bool	HasBeenSetUp ()
void	TearDown ()
bool	Contains (Address a)
bool	Contains (HeapObject *o)
MUST_USE_RESULT MaybeObject *	FindObject (Address addr)
virtual void	RepairFreeListsAfterBoot ()
intptr_t	Capacity ()
intptr_t	CommittedMemory ()
void	ClearStats ()
intptr_t	Available ()
virtual intptr_t	Size ()
virtual intptr_t	SizeOfObjects ()
virtual intptr_t	Waste ()
Address	top ()
Address	limit ()
MUST_USE_RESULT MaybeObject *	AllocateRaw (int size_in_bytes)
virtual bool	ReserveSpace (int bytes)
int	Free (Address start, int size_in_bytes)
void	ResetFreeList ()
void	SetTop (Address top, Address limit)
void	Allocate (int bytes)
void	IncreaseCapacity (int size)
void	ReleasePage (Page *page)
void	ReleaseAllUnusedPages ()
Page *	anchor ()
bool	was_swept_conservatively ()
void	set_was_swept_conservatively (bool b)
void	SetPagesToSweep (Page *first)
void	IncrementUnsweptFreeBytes (int by)
void	IncreaseUnsweptFreeBytes (Page *p)
void	DecreaseUnsweptFreeBytes (Page *p)
bool	AdvanceSweeper (intptr_t bytes_to_sweep)
bool	IsSweepingComplete ()
Page *	FirstPage ()
Page *	LastPage ()
void	CountFreeListItems (Page *p, FreeList::SizeStats *sizes)
void	EvictEvacuationCandidatesFromFreeLists ()
bool	CanExpand ()
int	CountTotalPages ()
int	AreaSize ()
Public Member Functions inherited from Space
	Space (Heap *heap, AllocationSpace id, Executability executable)
virtual	~Space ()
Heap *	heap () const
Executability	executable ()
AllocationSpace	identity ()
Public Member Functions inherited from Malloced
void *	operator new (size_t size)
void	operator delete (void *p)

Static Public Attributes
static const int	kMaxMapPageIndex = 1 << 16

Protected Member Functions
virtual void	VerifyObject (HeapObject *obj)
Protected Member Functions inherited from PagedSpace
intptr_t	SizeOfFirstPage ()
bool	Expand ()
HeapObject *	AllocateLinearly (int size_in_bytes)
virtual MUST_USE_RESULT HeapObject *	SlowAllocateRaw (int size_in_bytes)

Additional Inherited Members
Static Public Member Functions inherited from PagedSpace
static bool	ShouldBeSweptLazily (Page *p)
Static Public Member Functions inherited from Malloced
static void	FatalProcessOutOfMemory ()
static void *	New (size_t size)
static void	Delete (void *p)
Protected Attributes inherited from PagedSpace
int	area_size_
intptr_t	max_capacity_
AllocationStats	accounting_stats_
Page	anchor_
FreeList	free_list_
AllocationInfo	allocation_info_
int	page_extra_
bool	was_swept_conservatively_
Page *	first_unswept_page_
intptr_t	unswept_free_bytes_

Detailed Description

Definition at line 2420 of file spaces.h.

Constructor & Destructor Documentation

MapSpace ( Heap *  heap, intptr_t  max_capacity, AllocationSpace  id  )

inline

Definition at line 2423 of file spaces.h.

Member Function Documentation

virtual int RoundSizeDownToObjectAlignment ( int  size )

inlinevirtual

Reimplemented from Space.

Definition at line 2432 of file spaces.h.

References v8::internal::IsPowerOf2(), Map::kSize, and v8::internal::RoundDown().

void VerifyObject ( HeapObject *  obj )

protectedvirtual

Definition at line 2562 of file spaces.cc.

References CHECK.

Field Documentation

const int kMaxMapPageIndex = 1 << 16

static

Definition at line 2430 of file spaces.h.

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

• src/spaces.h
• src/spaces.cc