BitmappedBlockWithInternalPointers

A BitmappedBlock with additional structure for supporting resolveInternalPointer. To that end, BitmappedBlockWithInternalPointers adds a bitmap (one bit per block) that marks object starts. The bitmap itself has variable size and is allocated together with regular allocations.

The time complexity of resolveInternalPointer is O(k), where k is the size of the object within which the internal pointer is looked up.

struct BitmappedBlockWithInternalPointers (

size_t theBlockSize

uint theAlignment = platformAlignment

ParentAllocator = NullAllocator

) {

import stdx.allocator.internal : Ternary;;

this(ubyte[] data);

this(size_t capacity);

alias alignment = theAlignment;

size_t goodAllocSize(size_t n);

void[] allocate(size_t bytes);

void[] allocateAll();

bool expand(void[] b, size_t bytes);

bool deallocate(void[] b);

Ternary resolveInternalPointer(void* p, void[] result);

Ternary empty();

}

Constructors

this this(ubyte[] data)
this(size_t capacity): Constructors accepting desired capacity or a preallocated buffer, similar in semantics to those of BitmappedBlock.

Members

Aliases

alignment alias alignment = theAlignment
allocate void[] allocate(size_t bytes)
allocateAll void[] allocateAll()
deallocate bool deallocate(void[] b)
empty Ternary empty()
expand bool expand(void[] b, size_t bytes)
goodAllocSize size_t goodAllocSize(size_t n)
resolveInternalPointer Ternary resolveInternalPointer(void* p, void[] result): Allocator primitives.

BitmappedBlockWithInternalPointers

Constructors

Members

Aliases

Functions

Meta

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