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add non-zeroing append and resize

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This commit is contained in:
Colin Davidson
2023-12-04 00:08:13 -08:00
parent c5c46c5073
commit 58e4a011c7
8 changed files with 147 additions and 42 deletions
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core/runtime/internal.odin
+23 -4
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@@ -187,7 +187,7 @@ mem_free_all :: #force_inline proc(allocator := context.allocator, loc := #calle
return
}
mem_resize :: proc(ptr: rawptr, old_size, new_size: int, alignment: int = DEFAULT_ALIGNMENT, allocator := context.allocator, loc := #caller_location) -> (data: []byte, err: Allocator_Error) {
_mem_resize :: #force_inline proc(ptr: rawptr, old_size, new_size: int, alignment: int = DEFAULT_ALIGNMENT, allocator := context.allocator, should_zero: bool, loc := #caller_location) -> (data: []byte, err: Allocator_Error) {
if allocator.procedure == nil {
return nil, nil
}
@@ -198,15 +198,27 @@ mem_resize :: proc(ptr: rawptr, old_size, new_size: int, alignment: int = DEFAUL
}
return
} else if ptr == nil {
return allocator.procedure(allocator.data, .Alloc, new_size, alignment, nil, 0, loc)
if should_zero {
return allocator.procedure(allocator.data, .Alloc, new_size, alignment, nil, 0, loc)
} else {
return allocator.procedure(allocator.data, .Alloc_Non_Zeroed, new_size, alignment, nil, 0, loc)
}
} else if old_size == new_size && uintptr(ptr) % uintptr(alignment) == 0 {
data = ([^]byte)(ptr)[:old_size]
return
}
data, err = allocator.procedure(allocator.data, .Resize, new_size, alignment, ptr, old_size, loc)
if should_zero {
data, err = allocator.procedure(allocator.data, .Resize, new_size, alignment, ptr, old_size, loc)
} else {
data, err = allocator.procedure(allocator.data, .Resize_Non_Zeroed, new_size, alignment, ptr, old_size, loc)
}
if err == .Mode_Not_Implemented {
data, err = allocator.procedure(allocator.data, .Alloc, new_size, alignment, nil, 0, loc)
if should_zero {
data, err = allocator.procedure(allocator.data, .Alloc, new_size, alignment, nil, 0, loc)
} else {
data, err = allocator.procedure(allocator.data, .Alloc_Non_Zeroed, new_size, alignment, nil, 0, loc)
}
if err != nil {
return
}
@@ -216,6 +228,13 @@ mem_resize :: proc(ptr: rawptr, old_size, new_size: int, alignment: int = DEFAUL
return
}
mem_resize :: proc(ptr: rawptr, old_size, new_size: int, alignment: int = DEFAULT_ALIGNMENT, allocator := context.allocator, loc := #caller_location) -> (data: []byte, err: Allocator_Error) {
return _mem_resize(ptr, old_size, new_size, alignment, allocator, true, loc)
}
non_zero_mem_resize :: proc(ptr: rawptr, old_size, new_size: int, alignment: int = DEFAULT_ALIGNMENT, allocator := context.allocator, loc := #caller_location) -> (data: []byte, err: Allocator_Error) {
return _mem_resize(ptr, old_size, new_size, alignment, allocator, false, loc)
}
memory_equal :: proc "contextless" (x, y: rawptr, n: int) -> bool {
switch {
case n == 0: return true