SlotsBuffer Class Reference

#include <mark-compact.h>

Public Types
enum	SlotType {   EMBEDDED_OBJECT_SLOT, RELOCATED_CODE_OBJECT, CODE_TARGET_SLOT, CODE_ENTRY_SLOT,   DEBUG_TARGET_SLOT, JS_RETURN_SLOT, NUMBER_OF_SLOT_TYPES }
enum	AdditionMode { FAIL_ON_OVERFLOW, IGNORE_OVERFLOW }
typedef Object **	ObjectSlot

Public Member Functions
	SlotsBuffer (SlotsBuffer *next_buffer)
	~SlotsBuffer ()
void	Add (ObjectSlot slot)
void	UpdateSlots (Heap *heap)
void	UpdateSlotsWithFilter (Heap *heap)
SlotsBuffer *	next ()
bool	IsFull ()
bool	HasSpaceForTypedSlot ()

Static Public Member Functions
static const char *	SlotTypeToString (SlotType type)
static int	SizeOfChain (SlotsBuffer *buffer)
static void	UpdateSlotsRecordedIn (Heap *heap, SlotsBuffer *buffer, bool code_slots_filtering_required)
static bool	ChainLengthThresholdReached (SlotsBuffer *buffer)
static bool	AddTo (SlotsBufferAllocator *allocator, SlotsBuffer **buffer_address, ObjectSlot slot, AdditionMode mode)
static bool	IsTypedSlot (ObjectSlot slot)
static bool	AddTo (SlotsBufferAllocator *allocator, SlotsBuffer **buffer_address, SlotType type, Address addr, AdditionMode mode)

Static Public Attributes
static const int	kNumberOfElements = 1021

Detailed Description

Definition at line 278 of file mark-compact.h.

Member Typedef Documentation

typedef Object** ObjectSlot

Definition at line 280 of file mark-compact.h.

Member Enumeration Documentation

enum AdditionMode

Enumerator
FAIL_ON_OVERFLOW
IGNORE_OVERFLOW

Definition at line 360 of file mark-compact.h.

enum SlotType

Enumerator
EMBEDDED_OBJECT_SLOT
RELOCATED_CODE_OBJECT
CODE_TARGET_SLOT
CODE_ENTRY_SLOT
DEBUG_TARGET_SLOT
JS_RETURN_SLOT
NUMBER_OF_SLOT_TYPES

Definition at line 297 of file mark-compact.h.

Constructor & Destructor Documentation

SlotsBuffer ( SlotsBuffer *  next_buffer )

inlineexplicit

Definition at line 282 of file mark-compact.h.

References v8::internal::NULL.

~SlotsBuffer ( )

inline

Definition at line 289 of file mark-compact.h.

Member Function Documentation

void Add ( ObjectSlot  slot )

inline

Definition at line 292 of file mark-compact.h.

References ASSERT, and SlotsBuffer::kNumberOfElements.

Referenced by SlotsBuffer::AddTo().

static bool AddTo ( SlotsBufferAllocator *  allocator, SlotsBuffer **  buffer_address, ObjectSlot  slot, AdditionMode  mode  )

inlinestatic

Definition at line 369 of file mark-compact.h.

References SlotsBuffer::Add(), SlotsBufferAllocator::AllocateBuffer(), SlotsBuffer::ChainLengthThresholdReached(), SlotsBufferAllocator::DeallocateChain(), SlotsBuffer::FAIL_ON_OVERFLOW, SlotsBuffer::IsFull(), and v8::internal::NULL.

Referenced by MarkCompactCollector::MigrateObject(), MarkCompactCollector::RecordCodeEntrySlot(), and MarkCompactCollector::RecordRelocSlot().

bool AddTo ( SlotsBufferAllocator *  allocator, SlotsBuffer **  buffer_address, SlotType  type, Address  addr, AdditionMode  mode  )

static

Definition at line 3623 of file mark-compact.cc.

References SlotsBuffer::Add(), SlotsBufferAllocator::AllocateBuffer(), ASSERT, SlotsBuffer::ChainLengthThresholdReached(), SlotsBufferAllocator::DeallocateChain(), SlotsBuffer::FAIL_ON_OVERFLOW, SlotsBuffer::HasSpaceForTypedSlot(), and v8::internal::NULL.

static bool ChainLengthThresholdReached ( SlotsBuffer *  buffer )

inlinestatic

Definition at line 365 of file mark-compact.h.

References v8::internal::NULL.

Referenced by SlotsBuffer::AddTo().

bool HasSpaceForTypedSlot ( )

inline

Definition at line 343 of file mark-compact.h.

References SlotsBuffer::kNumberOfElements.

Referenced by SlotsBuffer::AddTo().

bool IsFull ( )

inline

Definition at line 339 of file mark-compact.h.

References SlotsBuffer::kNumberOfElements.

Referenced by SlotsBuffer::AddTo().

bool IsTypedSlot ( ObjectSlot  slot )

static

Definition at line 3618 of file mark-compact.cc.

References SlotsBuffer::NUMBER_OF_SLOT_TYPES.

Referenced by SlotsBuffer::UpdateSlots(), and SlotsBuffer::UpdateSlotsWithFilter().

SlotsBuffer* next ( )

inline

Definition at line 331 of file mark-compact.h.

Referenced by SlotsBufferAllocator::DeallocateChain(), and SlotsBuffer::UpdateSlotsRecordedIn().

static int SizeOfChain ( SlotsBuffer *  buffer )

inlinestatic

Definition at line 333 of file mark-compact.h.

References SlotsBuffer::kNumberOfElements, and v8::internal::NULL.

static const char* SlotTypeToString ( SlotType  type )

inlinestatic

Definition at line 307 of file mark-compact.h.

References SlotsBuffer::CODE_ENTRY_SLOT, SlotsBuffer::CODE_TARGET_SLOT, SlotsBuffer::DEBUG_TARGET_SLOT, SlotsBuffer::EMBEDDED_OBJECT_SLOT, SlotsBuffer::JS_RETURN_SLOT, SlotsBuffer::NUMBER_OF_SLOT_TYPES, and SlotsBuffer::RELOCATED_CODE_OBJECT.

void UpdateSlots

(

Heap *

heap

)

Definition at line 3710 of file mark-compact.cc.

References ASSERT, SlotsBuffer::IsTypedSlot(), and PointersUpdatingVisitor::UpdateSlot().

Referenced by SlotsBuffer::UpdateSlotsRecordedIn().

static void UpdateSlotsRecordedIn ( Heap *  heap, SlotsBuffer *  buffer, bool  code_slots_filtering_required  )

inlinestatic

Definition at line 347 of file mark-compact.h.

References SlotsBuffer::next(), v8::internal::NULL, SlotsBuffer::UpdateSlots(), and SlotsBuffer::UpdateSlotsWithFilter().

void UpdateSlotsWithFilter

(

Heap *

heap

)

Definition at line 3728 of file mark-compact.cc.

References ASSERT, SlotsBuffer::IsTypedSlot(), v8::internal::pc, and PointersUpdatingVisitor::UpdateSlot().

Referenced by SlotsBuffer::UpdateSlotsRecordedIn().

Field Documentation

const int kNumberOfElements = 1021

static

Definition at line 394 of file mark-compact.h.

Referenced by SlotsBuffer::Add(), SlotsBuffer::HasSpaceForTypedSlot(), SlotsBuffer::IsFull(), and SlotsBuffer::SizeOfChain().

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

• src/mark-compact.h
• src/mark-compact.cc