v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask Class Reference

Inheritance diagram for v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask:

Collaboration diagram for v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask:

Public Member Functions
	JobTask (Heap *heap, const PinnedObjects &&pinned_objects)
	~JobTask ()
void	Run (JobDelegate *delegate) override
size_t	GetMaxConcurrency (size_t worker_count) const override
uint64_t	trace_id () const
Public Member Functions inherited from v8::JobTask

Private Types
using	ObjectsAndSizes = std::vector<std::pair<Address, size_t>>
using	PinnedObjectPerPage
using	FreeSpaceHandler

Private Member Functions
size_t	SweepPage (FreeSpaceHandler free_space_handler, MemoryChunk *chunk, PageMetadata *page, ObjectsAndSizes &pinned_objects_on_page)
void	CreateFillerFreeHandler (Address address, size_t size)

Static Private Member Functions
static void	CreateFillerFreeSpaceHandler (Heap *heap, Address address, size_t size, bool should_zap)
static void	AddToFreeListFreeSpaceHandler (Heap *heap, Address address, size_t size, bool should_zap)

Private Attributes
Heap *const	heap_
const uint64_t	trace_id_
const bool	should_zap_
PinnedObjects	pinned_objects_
std::atomic_bool	is_done_ {false}
PinnedObjectPerPage	pinned_object_per_page_
PinnedObjectPerPage::iterator	next_page_iterator_

Detailed Description

Definition at line 308 of file scavenger.h.

Member Typedef Documentation

FreeSpaceHandler

using v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::FreeSpaceHandler

private

Initial value:

 
          std::function<void(Heap*, Address, size_t, bool)>

Definition at line 330 of file scavenger.h.

ObjectsAndSizes

using v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::ObjectsAndSizes = std::vector<std::pair<Address, size_t>>

private

Definition at line 326 of file scavenger.h.

PinnedObjectPerPage

using v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::PinnedObjectPerPage

private

Initial value:

 
          std::unordered_map<MemoryChunk*, ObjectsAndSizes,
                             base::hash<MemoryChunk*>>

Definition at line 327 of file scavenger.h.

Constructor & Destructor Documentation

JobTask()

v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::JobTask	(	Heap *	heap,
		const PinnedObjects &&	pinned_objects )

Definition at line 668 of file scavenger.cc.

~JobTask()

v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::~JobTask ( )

inlinevirtual

Reimplemented from v8::JobTask.

Definition at line 311 of file scavenger.h.

Member Function Documentation

AddToFreeListFreeSpaceHandler()

void v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::AddToFreeListFreeSpaceHandler ( Heap * heap, Address address, size_t size, bool should_zap )

staticprivate

Definition at line 750 of file scavenger.cc.

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CreateFillerFreeHandler()

void v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::CreateFillerFreeHandler ( Address address, size_t size )

private

CreateFillerFreeSpaceHandler()

void v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::CreateFillerFreeSpaceHandler ( Heap * heap, Address address, size_t size, bool should_zap )

staticprivate

Definition at line 740 of file scavenger.cc.

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GetMaxConcurrency()

size_t v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::GetMaxConcurrency ( size_t worker_count ) const

inlineoverridevirtual

Controls the maximum number of threads calling Run() concurrently, given the number of threads currently assigned to this job and executing Run(). Run() is only invoked if the number of threads previously running Run() was less than the value returned. In general, this should return the latest number of incomplete work items (smallest unit of work) left to process, including items that are currently in progress. |worker_count| is the number of threads currently assigned to this job which some callers may need to determine their return value. Since GetMaxConcurrency() is a leaf function, it must not call back any JobHandle methods.

Implements v8::JobTask.

Definition at line 319 of file scavenger.h.

Run()

void v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::Run ( JobDelegate * delegate )

overridevirtual

Implements v8::JobTask.

Definition at line 678 of file scavenger.cc.

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SweepPage()

size_t v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::SweepPage ( FreeSpaceHandler free_space_handler, MemoryChunk * chunk, PageMetadata * page, ObjectsAndSizes & pinned_objects_on_page )

private

Definition at line 762 of file scavenger.cc.

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trace_id()

uint64_t v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::trace_id ( ) const

inline

Definition at line 323 of file scavenger.h.

Member Data Documentation

heap_

Heap* const v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::heap_

private

Definition at line 342 of file scavenger.h.

is_done_

std::atomic_bool v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::is_done_ {false}

private

Definition at line 347 of file scavenger.h.

next_page_iterator_

PinnedObjectPerPage::iterator v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::next_page_iterator_

private

Definition at line 349 of file scavenger.h.

pinned_object_per_page_

PinnedObjectPerPage v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::pinned_object_per_page_

private

Definition at line 348 of file scavenger.h.

pinned_objects_

PinnedObjects v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::pinned_objects_

private

Definition at line 345 of file scavenger.h.

should_zap_

const bool v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::should_zap_

private

Definition at line 344 of file scavenger.h.

trace_id_

const uint64_t v8::internal::ScavengerCollector::QuarantinedPageSweeper::JobTask::trace_id_

private

Definition at line 343 of file scavenger.h.

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

• src/heap/scavenger.h
• src/heap/scavenger.cc