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Add Query_Info to Buddy_Allocator

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gingerBill
2024-03-06 16:26:10 +00:00
parent 2a0543d2f0
commit 46718d6d85
1 changed files with 14 additions and 2 deletions
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core/mem/allocators.odin
+14 -2
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@@ -1116,12 +1116,24 @@ buddy_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
case .Query_Features: case .Query_Features:
set := (^Allocator_Mode_Set)(old_memory) set := (^Allocator_Mode_Set)(old_memory)
if set != nil { if set != nil {
set^ = {.Query_Features, .Alloc, .Alloc_Non_Zeroed, .Resize, .Resize_Non_Zeroed, .Free, .Free_All} set^ = {.Query_Features, .Alloc, .Alloc_Non_Zeroed, .Resize, .Resize_Non_Zeroed, .Free, .Free_All, .Query_Info}
} }
return nil, nil return nil, nil
case .Query_Info: case .Query_Info:
return nil, .Mode_Not_Implemented info := (^Allocator_Query_Info)(old_memory)
if info != nil && info.pointer != nil {
ptr := old_memory
if !(b.head <= ptr && ptr <= b.tail) {
return nil, .Invalid_Pointer
}
block := (^Buddy_Block)(([^]byte)(ptr)[-b.alignment:])
info.size = int(block.size)
info.alignment = int(b.alignment)
return byte_slice(info, size_of(info^)), nil
}
return nil, nil
} }
return nil, nil return nil, nil