Namespace Ase::Loft

Namespace List > Ase > Loft

Loft - A special purpose memory allocator for lock- and obstruction-free thread progress.

Classes

Type	Name
class	Allocator <typename T> Allocator for STL containers.
struct	AllocatorBase Internal Helper.
struct	ArenaSpan
struct	BumpAllocator
struct	LoftBuckets

Public Types

Type	Name
typedef std::vector< ArenaSpan >	ArenaList
enum size_t	Flags Flags for allocator behavior.

Public Static Attributes

Type	Name
constexpr size_t	MINIMUM_HUGEPAGE = = 2 * 1024 * 1024
constexpr unsigned	NUMBER_OF_BUCKETS = = NUMBER_OF_POWER2_BUCKETS + SMALL_BLOCK_BUCKETS
constexpr unsigned	NUMBER_OF_POWER2_BUCKETS = = sizeof (uintptr_t) * 8
constexpr unsigned	SMALL_BLOCK_BUCKETS = = SMALL_BLOCK_LIMIT / 64
constexpr unsigned	SMALL_BLOCK_LIMIT = = 8192
std::atomic< Flags >	config_flags = = Flags (0)
std::atomic< std::function< void()> * >	config_lowmem_cb = = nullptr
std::atomic< size_t >	config_lowmem_notified = = 0
std::atomic< size_t >	config_preallocate = = 2 * MINIMUM_HUGEPAGE
std::atomic< size_t >	config_watermark = = MINIMUM_HUGEPAGE

Public Static Functions

Type	Name
unsigned	bucket_index (unsigned long long n)
size_t	bucket_size (unsigned index)

Public Types Documentation

typedef ArenaList

using Ase::Loft::ArenaList = typedef std::vector<ArenaSpan>;

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enum Flags

enum Ase::Loft::Flags {
    PREFAULT_PAGES = 1
};

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Public Static Attributes Documentation

variable MINIMUM_HUGEPAGE

constexpr size_t Ase::Loft::MINIMUM_HUGEPAGE;

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variable NUMBER_OF_BUCKETS

constexpr unsigned Ase::Loft::NUMBER_OF_BUCKETS;

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variable NUMBER_OF_POWER2_BUCKETS

constexpr unsigned Ase::Loft::NUMBER_OF_POWER2_BUCKETS;

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variable SMALL_BLOCK_BUCKETS

constexpr unsigned Ase::Loft::SMALL_BLOCK_BUCKETS;

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variable SMALL_BLOCK_LIMIT

constexpr unsigned Ase::Loft::SMALL_BLOCK_LIMIT;

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variable config_flags

std::atomic<Flags> Ase::Loft::config_flags;

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variable config_lowmem_cb

std::atomic<std::function<void()>*> Ase::Loft::config_lowmem_cb;

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variable config_lowmem_notified

std::atomic<size_t> Ase::Loft::config_lowmem_notified;

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variable config_preallocate

std::atomic<size_t> Ase::Loft::config_preallocate;

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variable config_watermark

std::atomic<size_t> Ase::Loft::config_watermark;

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Public Static Functions Documentation

function bucket_index

static inline unsigned Ase::Loft::bucket_index (
    unsigned long long n
) 

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function bucket_size

static inline size_t Ase::Loft::bucket_size (
    unsigned index
) 

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The documentation for this class was generated from the following file /__w/anklang/anklang/ase/loft.cc