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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) ;


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


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


alignedAllocate (n, a) Allocates n bytes of memory aligned at alignment a.
allocate (n) Allocates n bytes of memory. The allocation is served by atomically incrementing a pointer which keeps track of the current used space.
deallocate (b) 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, otherwise. (Never returns Ternary.unknown.)
goodAllocSize (n) Rounds the given size to a multiple of the alignment
owns (b) Queries whether b has been allocated with this region.


alignment Alignment offered.