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Struct std.experimental.allocator.building_blocks.region.SbrkRegion

Allocator backed by sbrk for Posix systems. Due to the fact that sbrk is not thread-safe by design, SbrkRegion uses a mutex internally. This implies that uncontrolled calls to brk and sbrk may affect the workings of SbrkRegion adversely.

struct SbrkRegion(uint minAlign = platformAlignment) ;

Fields

NameTypeDescription
instance SbrkRegionInstance shared by all callers.

Methods

NameDescription
alignedAllocate Rounds the given size to a multiple of thew alignment
allocate Rounds the given size to a multiple of thew alignment
deallocate The deallocate method only works (and returns true) on systems that support reducing the break address (i.e. accept calls to sbrk with negative offsets). OSX does not accept such. In addition the argument must be the last block allocated.
deallocateAll The deallocateAll method only works (and returns true) on systems that support reducing the break address (i.e. accept calls to sbrk with negative offsets). OSX does not accept such.
empty Standard allocator API.
expand The expand method may only succeed if the argument is the last block allocated. In that case, expand attempts to push the break pointer to the right.
goodAllocSize Rounds the given size to a multiple of thew alignment
owns The expand method may only succeed if the argument is the last block allocated. In that case, expand attempts to push the break pointer to the right.

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