v8
V8 is Google’s open source high-performance JavaScript and WebAssembly engine, written in C++.
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Public Member Functions | List of all members
v8::internal::FreeListManyCachedOrigin Class Reference

#include <free-list.h>

Inheritance diagram for v8::internal::FreeListManyCachedOrigin:
Collaboration diagram for v8::internal::FreeListManyCachedOrigin:

Public Member Functions

V8_WARN_UNUSED_RESULT Tagged< FreeSpace > Allocate (size_t size_in_bytes, size_t *node_size, AllocationOrigin origin) override
 
- Public Member Functions inherited from v8::internal::FreeListManyCachedFastPath
 FreeListManyCachedFastPath ()
 
- Public Member Functions inherited from v8::internal::FreeListManyCachedFastPathBase
 FreeListManyCachedFastPathBase (SmallBlocksMode small_blocks_mode)
 
- Public Member Functions inherited from v8::internal::FreeListManyCached
 FreeListManyCached ()
 
size_t Free (const WritableFreeSpace &free_space, FreeMode mode) override
 
void Reset () override
 
void ResetForNonBlackAllocatedPages () override
 
bool AddCategory (FreeListCategory *category) override
 
void RemoveCategory (FreeListCategory *category) override
 
- Public Member Functions inherited from v8::internal::FreeListMany
PageMetadata * GetPageForSize (size_t size_in_bytes) override
 
 FreeListMany ()
 
 ~FreeListMany () override
 
- Public Member Functions inherited from v8::internal::FreeList
 FreeList (int number_of_categories, size_t min_block_size)
 
virtual ~FreeList ()=default
 
size_t Available ()
 
void IncreaseAvailableBytes (size_t bytes)
 
void DecreaseAvailableBytes (size_t bytes)
 
size_t wasted_bytes () const
 
void increase_wasted_bytes (size_t bytes)
 
void decrease_wasted_bytes (size_t bytes)
 
bool IsEmpty ()
 
void RepairLists (Heap *heap)
 
V8_EXPORT_PRIVATE void EvictFreeListItems (PageMetadata *page)
 
int number_of_categories ()
 
FreeListCategoryType last_category ()
 
size_t min_block_size () const
 
template<typename Callback >
void ForAllFreeListCategories (FreeListCategoryType type, Callback callback)
 
template<typename Callback >
void ForAllFreeListCategories (Callback callback)
 
void PrintCategories (FreeListCategoryType type)
 

Additional Inherited Members

- Public Types inherited from v8::internal::FreeListManyCachedFastPathBase
enum class  SmallBlocksMode { kAllow , kProhibit }
 
- Static Public Member Functions inherited from v8::internal::FreeList
static V8_EXPORT_PRIVATE std::unique_ptr< FreeList > CreateFreeList ()
 
static V8_EXPORT_PRIVATE std::unique_ptr< FreeList > CreateFreeListForNewSpace ()
 
- Protected Member Functions inherited from v8::internal::FreeListManyCachedFastPathBase
FreeListCategoryType SelectFastAllocationFreeListCategoryType (size_t size_in_bytes)
 
- Protected Member Functions inherited from v8::internal::FreeListManyCached
void UpdateCacheAfterAddition (FreeListCategoryType cat)
 
void UpdateCacheAfterRemoval (FreeListCategoryType cat)
 
- Protected Member Functions inherited from v8::internal::FreeListMany
FreeListCategoryType SelectFreeListCategoryType (size_t size_in_bytes) override
 
 FRIEND_TEST (SpacesTest, FreeListManySelectFreeListCategoryType)
 
 FRIEND_TEST (SpacesTest, FreeListManyGuaranteedAllocatable)
 
- Protected Member Functions inherited from v8::internal::FreeList
void VerifyAvailable ()
 
Tagged< FreeSpace > TryFindNodeIn (FreeListCategoryType type, size_t minimum_size, size_t *node_size)
 
Tagged< FreeSpace > SearchForNodeInList (FreeListCategoryType type, size_t minimum_size, size_t *node_size)
 
FreeListCategory * top (FreeListCategoryType type) const
 
PageMetadata * GetPageForCategoryType (FreeListCategoryType type)
 
- Protected Attributes inherited from v8::internal::FreeListManyCached
int next_nonempty_category [kNumberOfCategories+1]
 
- Protected Attributes inherited from v8::internal::FreeList
const int number_of_categories_ = 0
 
const FreeListCategoryType last_category_ = 0
 
size_t min_block_size_ = 0
 
FreeListCategory ** categories_ = nullptr
 
size_t available_ = 0
 
std::atomic< size_t > wasted_bytes_ = 0
 
- Static Protected Attributes inherited from v8::internal::FreeListManyCachedFastPathBase
static const FreeListCategoryType kFastPathFirstCategory = 18
 
static const size_t kFastPathStart = 2048
 
static const size_t kTinyObjectMaxSize = 128
 
static const size_t kFastPathOffset = kFastPathStart - kTinyObjectMaxSize
 
static const FreeListCategoryType kFastPathFallBackTiny = 15
 
- Static Protected Attributes inherited from v8::internal::FreeListMany
static constexpr size_t kMinBlockSize = 3 * kTaggedSize
 
static constexpr size_t kMaxBlockSize = MutablePageMetadata::kPageSize
 
static constexpr size_t kPreciseCategoryMaxSize = 256
 
static constexpr int kNumberOfCategories = 24
 
static constexpr unsigned int categories_min [kNumberOfCategories]
 

Detailed Description

Definition at line 510 of file free-list.h.

Member Function Documentation

◆ Allocate()

Tagged< FreeSpace > v8::internal::FreeListManyCachedOrigin::Allocate ( size_t size_in_bytes,
size_t * node_size,
AllocationOrigin origin )
overridevirtual

Reimplemented from v8::internal::FreeListManyCachedFastPathBase.

Definition at line 428 of file free-list.cc.

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