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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
| Name | Type | Description |
|---|---|---|
instance
|
SbrkRegion | Instance shared by all callers. |
Methods
| Name | Description |
|---|---|
alignedAllocate
(bytes, a)
|
Rounds the given size to a multiple of thew alignment
|
allocate
(bytes)
|
Rounds the given size to a multiple of thew alignment
|
deallocate
(b)
|
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
(b, delta)
|
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
(n)
|
Rounds the given size to a multiple of thew alignment
|
owns
(b)
|
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.
|
Authors
License
Copyright © 1999-2024 by the D Language Foundation | Page generated by ddox.