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Struct std.experimental.allocator.building_blocks.region.SharedRegion

The threadsafe version of the Region allocator. Allocations and deallocations are lock-free based using cas.

struct SharedRegion(ParentAllocator, uint minAlign = platformAlignment, Flag!("growDownwards") growDownwards = No.growDownwards) ;

Constructors

NameDescription
this Constructs a region backed by a user-provided store. Assumes the memory was allocated with ParentAllocator (if different from NullAllocator).

Fields

NameTypeDescription
parent ParentAllocatorThe parent allocator. Depending on whether ParentAllocator holds state or not, this is a member variable or an alias for ParentAllocator.instance.

Methods

NameDescription
alignedAllocate Allocates n bytes of memory aligned at alignment a.
allocate Allocates n bytes of memory. The allocation is served by atomically incrementing a pointer which keeps track of the current used space.
deallocate Deallocates b. This works only if b was obtained as the last call to allocate; otherwise (i.e. another allocation has occurred since) it does nothing.
deallocateAll Deallocates all memory allocated by this region, which can be subsequently reused for new allocations.
empty Returns Ternary.yes if no memory has been allocated in this region, Ternary.no otherwise. (Never returns Ternary.unknown.)
goodAllocSize Rounds the given size to a multiple of the alignment
owns Queries whether b has been allocated with this region.

Aliases

NameDescription
alignment Alignment offered.

Authors

License