mirror of
https://github.com/nim-lang/Nim.git
synced 2025-12-29 17:34:43 +00:00
36 lines
1.0 KiB
Nim
36 lines
1.0 KiB
Nim
#
|
|
#
|
|
# Nim's Runtime Library
|
|
# (c) Copyright 2017 Nim contributors
|
|
#
|
|
# See the file "copying.txt", included in this
|
|
# distribution, for details about the copyright.
|
|
#
|
|
|
|
type
|
|
Allocator* = ptr object {.inheritable.}
|
|
alloc*: proc (a: Allocator; size: int; alignment: int = 8): pointer {.nimcall.}
|
|
dealloc*: proc (a: Allocator; p: pointer; size: int) {.nimcall.}
|
|
realloc*: proc (a: Allocator; p: pointer; oldSize, newSize: int): pointer {.nimcall.}
|
|
|
|
var
|
|
currentAllocator {.threadvar.}: Allocator
|
|
|
|
proc getCurrentAllocator*(): Allocator =
|
|
result = currentAllocator
|
|
|
|
proc setCurrentAllocator*(a: Allocator) =
|
|
currentAllocator = a
|
|
|
|
proc alloc*(size: int; alignment: int = 8): pointer =
|
|
let a = getCurrentAllocator()
|
|
result = a.alloc(a, size, alignment)
|
|
|
|
proc dealloc*(p: pointer; size: int) =
|
|
let a = getCurrentAllocator()
|
|
a.dealloc(a, p, size)
|
|
|
|
proc realloc*(p: pointer; oldSize, newSize: int): pointer =
|
|
let a = getCurrentAllocator()
|
|
result = a.realloc(a, p, oldSize, newSize)
|