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Add Allocator_Mode.Alloc_Non_Zerored

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This commit is contained in:
gingerBill
2022-09-22 12:12:57 +01:00
parent eb0d7465e2
commit 7f601c9535
21 changed files with 128 additions and 65 deletions
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core/os/os.odin
+5 -5
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@@ -178,7 +178,7 @@ heap_allocator_proc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
// the pointer we return to the user.
//
aligned_alloc :: proc(size, alignment: int, old_ptr: rawptr = nil) -> ([]byte, mem.Allocator_Error) {
aligned_alloc :: proc(size, alignment: int, old_ptr: rawptr = nil, zero_memory := true) -> ([]byte, mem.Allocator_Error) {
a := max(alignment, align_of(rawptr))
space := size + a - 1
@@ -187,7 +187,7 @@ heap_allocator_proc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
original_old_ptr := mem.ptr_offset((^rawptr)(old_ptr), -1)^
allocated_mem = heap_resize(original_old_ptr, space+size_of(rawptr))
} else {
allocated_mem = heap_alloc(space+size_of(rawptr))
allocated_mem = heap_alloc(space+size_of(rawptr), zero_memory)
}
aligned_mem := rawptr(mem.ptr_offset((^u8)(allocated_mem), size_of(rawptr)))
@@ -226,8 +226,8 @@ heap_allocator_proc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
}
switch mode {
case .Alloc:
return aligned_alloc(size, alignment)
case .Alloc, .Alloc_Non_Zeroed:
return aligned_alloc(size, alignment, nil, mode == .Alloc)
case .Free:
aligned_free(old_memory)
@@ -244,7 +244,7 @@ heap_allocator_proc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
case .Query_Features:
set := (^mem.Allocator_Mode_Set)(old_memory)
if set != nil {
set^ = {.Alloc, .Free, .Resize, .Query_Features}
set^ = {.Alloc, .Alloc_Non_Zeroed, .Free, .Resize, .Query_Features}
}
return nil, nil