CSharedAllocatorImpl

Implementation of ISharedAllocator using Allocator. This adapts a statically-built, shareable across threads, allocator type to ISharedAllocator that is directly usable by non-templated code.

Usually CSharedAllocatorImpl is used indirectly by calling processAllocator.

class CSharedAllocatorImpl : ISharedAllocator (

Allocator

Flag!"indirect" indirect = No.indirect

) {

eponymoustemplate hasMember(T, string name) via import std.traits : hasMember;;

TailShared!T atomicOp(T val, V1 mod) via import core.atomic : atomicOp, atomicLoad;;

TailShared!T atomicLoad(T val) via import core.atomic : atomicOp, atomicLoad;;

shared

static if(stateSize!Allocator)

size_t rc;

static if(indirect)

Allocator impl();

this(Allocator* pa);

shared

static if(!(indirect))

static if(stateSize!Allocator)

Allocator impl;

uint alignment [@property getter];

size_t goodAllocSize(size_t s);

void[] allocate(size_t s, TypeInfo ti);

void[] alignedAllocate(size_t s, uint a);

Ternary owns(void[] b);

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

bool reallocate(void[] b, size_t s);

bool alignedReallocate(void[] b, size_t s, uint a);

bool deallocate(void[] b);

bool deallocateAll();

Ternary empty();

void[] allocateAll();

}

Constructors

this this(Allocator* pa): The implementation is available as a public member.

Members

Functions

alignedAllocate void[] alignedAllocate(size_t s, uint a): If impl.alignedAllocate exists, calls it and returns the result. Otherwise, always returns null.
alignedReallocate bool alignedReallocate(void[] b, size_t s, uint a): Forwards to impl.alignedReallocate if defined, false otherwise.
allocate void[] allocate(size_t s, TypeInfo ti): Returns impl.allocate(s).
allocateAll void[] allocateAll(): Returns impl.allocateAll() if present, null otherwise.
deallocate bool deallocate(void[] b): If impl.deallocate is not defined, returns false. Otherwise it forwards the call.
deallocateAll bool deallocateAll(): Calls impl.deallocateAll() and returns the result if defined, otherwise returns false.
empty Ternary empty(): Forwards to impl.empty() if defined, otherwise returns Ternary.unknown.
expand bool expand(void[] b, size_t s): Returns impl.expand(b, s) if defined, false otherwise.
goodAllocSize size_t goodAllocSize(size_t s): Returns impl.goodAllocSize(s).
impl Allocator impl(): The implementation is available as a public member.
owns Ternary owns(void[] b): If Allocator implements owns, forwards to it. Otherwise, returns Ternary.unknown.
reallocate bool reallocate(void[] b, size_t s): Returns impl.reallocate(b, s).

Properties

alignment uint alignment [@property getter]: Returns impl.alignment.

Inherited Members

From ISharedAllocator

alignment uint alignment [@property getter]: Returns the alignment offered.
goodAllocSize size_t goodAllocSize(size_t s): Returns the good allocation size that guarantees zero internal fragmentation.
allocate void[] allocate(size_t , TypeInfo ti): Allocates n bytes of memory.
alignedAllocate void[] alignedAllocate(size_t n, uint a): Allocates n bytes of memory with specified alignment a. Implementations that do not support this primitive should always return null.
allocateAll void[] allocateAll(): Allocates and returns all memory available to this allocator. Implementations that do not support this primitive should always return null.
expand bool expand(void[] , size_t ): Expands a memory block in place and returns true if successful. Implementations that don't support this primitive should always return false.
reallocate bool reallocate(void[] , size_t ): Reallocates a memory block.
alignedReallocate bool alignedReallocate(void[] b, size_t size, uint alignment): Reallocates a memory block with specified alignment.
owns Ternary owns(void[] b): Returns Ternary.yes if the allocator owns b, Ternary.no if the allocator doesn't own b, and Ternary.unknown if ownership cannot be determined. Implementations that don't support this primitive should always return Ternary.unknown.
resolveInternalPointer Ternary resolveInternalPointer(void* p, void[] result): Resolves an internal pointer to the full block allocated. Implementations that don't support this primitive should always return Ternary.unknown.
deallocate bool deallocate(void[] b): Deallocates a memory block. Implementations that don't support this primitive should always return false. A simple way to check that an allocator supports deallocation is to call deallocate(null).
deallocateAll bool deallocateAll(): Deallocates all memory. Implementations that don't support this primitive should always return false.
empty Ternary empty(): Returns Ternary.yes if no memory is currently allocated from this allocator, Ternary.no if some allocations are currently active, or Ternary.unknown if not supported.
incRef void incRef(): Increases the reference count of the concrete class that implements this interface.
decRef bool decRef(): Decreases the reference count of the concrete class that implements this interface. When the reference count is 0, the object self-destructs.

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