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add resize_non_zeroed to query features

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This commit is contained in:
Colin Davidson
2024-01-17 13:27:19 -08:00
parent d0bb1fb844
commit 991c1d4446
2 changed files with 28 additions and 5 deletions
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core/mem/alloc.odin
+22 -2
View File
@@ -245,12 +245,26 @@ default_resize_align :: proc(old_memory: rawptr, old_size, new_size, alignment:
res = raw_data(data)
return
}
@(require_results)
default_resize_bytes_align_non_zeroed :: proc(old_data: []byte, new_size, alignment: int, allocator := context.allocator, loc := #caller_location) -> ([]byte, Allocator_Error) {
return _default_resize_bytes_align(old_data, new_size, alignment, false, allocator, loc)
}
@(require_results)
default_resize_bytes_align :: proc(old_data: []byte, new_size, alignment: int, allocator := context.allocator, loc := #caller_location) -> ([]byte, Allocator_Error) {
return _default_resize_bytes_align(old_data, new_size, alignment, true, allocator, loc)
}
@(require_results)
_default_resize_bytes_align :: #force_inline proc(old_data: []byte, new_size, alignment: int, should_zero: bool, allocator := context.allocator, loc := #caller_location) -> ([]byte, Allocator_Error) {
old_memory := raw_data(old_data)
old_size := len(old_data)
if old_memory == nil {
return alloc_bytes(new_size, alignment, allocator, loc)
if should_zero {
return alloc_bytes(new_size, alignment, allocator, loc)
} else {
return alloc_bytes_non_zeroed(new_size, alignment, allocator, loc)
}
}
if new_size == 0 {
@@ -262,7 +276,13 @@ default_resize_bytes_align :: proc(old_data: []byte, new_size, alignment: int, a
return old_data, .None
}
new_memory, err := alloc_bytes(new_size, alignment, allocator, loc)
new_memory : []byte
err : Allocator_Error
if should_zero {
new_memory, err = alloc_bytes(new_size, alignment, allocator, loc)
} else {
new_memory, err = alloc_bytes_non_zeroed(new_size, alignment, allocator, loc)
}
if new_memory == nil || err != nil {
return nil, err
}
core/mem/allocators.odin
+6 -3
View File
@@ -85,13 +85,16 @@ arena_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
case .Free_All:
arena.offset = 0
case .Resize, .Resize_Non_Zeroed:
return default_resize_bytes_align(byte_slice(old_memory, old_size), size, alignment, arena_allocator(arena))
case .Resize:
return default_resize_bytes_align(byte_slice(old_memory, old_size), size, alignment, arena_allocator(arena))
case .Resize_Non_Zeroed:
return default_resize_bytes_align_non_zeroed(byte_slice(old_memory, old_size), size, alignment, arena_allocator(arena))
case .Query_Features:
set := (^Allocator_Mode_Set)(old_memory)
if set != nil {
set^ = {.Alloc, .Alloc_Non_Zeroed, .Free_All, .Resize, .Query_Features}
set^ = {.Alloc, .Alloc_Non_Zeroed, .Free_All, .Resize, .Resize_Non_Zeroed, .Query_Features}
}
return nil, nil