v8::internal::SemiSpaceIterator Class Reference

#include <spaces.h>

Inheritance diagram for v8::internal::SemiSpaceIterator:

Collaboration diagram for v8::internal::SemiSpaceIterator:

Public Member Functions
	SemiSpaceIterator (NewSpace *space)
	SemiSpaceIterator (NewSpace *space, HeapObjectCallback size_func)
	SemiSpaceIterator (NewSpace *space, Address start)
	SemiSpaceIterator (Address from, Address to)
HeapObject *	Next ()
virtual HeapObject *	next_object ()
Public Member Functions inherited from v8::internal::ObjectIterator
virtual	~ObjectIterator ()
Public Member Functions inherited from v8::internal::Malloced
void *	operator new (size_t size)
void	operator delete (void *p)

Private Member Functions
void	Initialize (Address start, Address end, HeapObjectCallback size_func)

Private Attributes
Address	current_
Address	limit_
HeapObjectCallback	size_func_

Additional Inherited Members
Static Public Member Functions inherited from v8::internal::Malloced
static void	FatalProcessOutOfMemory ()
static void *	New (size_t size)
static void	Delete (void *p)

Detailed Description

Definition at line 2233 of file spaces.h.

Constructor & Destructor Documentation

SemiSpaceIterator() [1/4]

v8::internal::SemiSpaceIterator::SemiSpaceIterator ( NewSpace *  space )

explicit

Definition at line 1735 of file spaces.cc.

                                                    {
  Initialize(space->bottom(), space->top(), NULL);
}

References Initialize(), NULL, and space().

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SemiSpaceIterator() [2/4]

v8::internal::SemiSpaceIterator::SemiSpaceIterator	(	NewSpace *	space,
		HeapObjectCallback	size_func
	)

Definition at line 1740 of file spaces.cc.

                                                                   {
  Initialize(space->bottom(), space->top(), size_func);
}

References Initialize(), and space().

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SemiSpaceIterator() [3/4]

v8::internal::SemiSpaceIterator::SemiSpaceIterator	(	NewSpace *	space,
		Address	start
	)

Definition at line 1746 of file spaces.cc.

                                                                   {
  Initialize(start, space->top(), NULL);
}

References Initialize(), NULL, and space().

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SemiSpaceIterator() [4/4]

v8::internal::SemiSpaceIterator::SemiSpaceIterator	(	Address	from,
		Address	to
	)

Definition at line 1751 of file spaces.cc.

                                                             {
  Initialize(from, to, NULL);
}

References Initialize(), NULL, and to().

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Member Function Documentation

Initialize()

void v8::internal::SemiSpaceIterator::Initialize ( Address  start, Address  end, HeapObjectCallback  size_func  )

private

Definition at line 1756 of file spaces.cc.

                                                                 {
  SemiSpace::AssertValidRange(start, end);
  current_ = start;
  limit_ = end;
  size_func_ = size_func;
}

References v8::internal::SemiSpace::AssertValidRange(), current_, limit_, and size_func_.

Referenced by SemiSpaceIterator().

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Next()

HeapObject* v8::internal::SemiSpaceIterator::Next ( )

inline

Definition at line 2249 of file spaces.h.

                     {
    if (current_ == limit_) return NULL;
    if (NewSpacePage::IsAtEnd(current_)) {
      NewSpacePage* page = NewSpacePage::FromLimit(current_);
      page = page->next_page();
      DCHECK(!page->is_anchor());
      current_ = page->area_start();
      if (current_ == limit_) return NULL;
    }
 
    HeapObject* object = HeapObject::FromAddress(current_);
    int size = (size_func_ == NULL) ? object->Size() : size_func_(object);
 
    current_ += size;
    return object;
  }

References v8::internal::MemoryChunk::area_start(), current_, DCHECK, v8::internal::HeapObject::FromAddress(), v8::internal::NewSpacePage::FromLimit(), v8::internal::NewSpacePage::is_anchor(), v8::internal::NewSpacePage::IsAtEnd(), limit_, v8::internal::NewSpacePage::next_page(), NULL, size, v8::internal::HeapObject::Size(), and size_func_.

Referenced by v8::internal::NewSpace::CollectStatistics(), v8::internal::MarkCompactCollector::EvacuateNewSpaceAndCandidates(), and next_object().

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next_object()

virtual HeapObject* v8::internal::SemiSpaceIterator::next_object ( )

inlinevirtual

Implements v8::internal::ObjectIterator.

Definition at line 2267 of file spaces.h.

{ return Next(); }

References Next().

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Member Data Documentation

current_

Address v8::internal::SemiSpaceIterator::current_

private

Definition at line 2273 of file spaces.h.

Referenced by Initialize(), and Next().

limit_

Address v8::internal::SemiSpaceIterator::limit_

private

Definition at line 2275 of file spaces.h.

Referenced by Initialize(), and Next().

size_func_

HeapObjectCallback v8::internal::SemiSpaceIterator::size_func_

private

Definition at line 2277 of file spaces.h.

Referenced by Initialize(), and Next().

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

• /mnt/V8SourceCode/src/heap/spaces.h
• /mnt/V8SourceCode/src/heap/spaces.cc