1 // Copyright (c) 2023 Huawei Device Co., Ltd.
2 // Licensed under the Apache License, Version 2.0 (the "License");
3 // you may not use this file except in compliance with the License.
4 // You may obtain a copy of the License at
5 //
6 //     http://www.apache.org/licenses/LICENSE-2.0
7 //
8 // Unless required by applicable law or agreed to in writing, software
9 // distributed under the License is distributed on an "AS IS" BASIS,
10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 // See the License for the specific language governing permissions and
12 // limitations under the License.
13 
14 use std::fmt;
15 use std::ops::{Deref, DerefMut};
16 
17 use crate::sys::winapi::{IO_STATUS_BLOCK, IO_STATUS_BLOCK_0};
18 
19 pub(crate) struct IoStatusBlock(IO_STATUS_BLOCK);
20 
21 unsafe impl Send for IoStatusBlock {}
22 
23 impl IoStatusBlock {
zeroed() -> Self24     pub(crate) fn zeroed() -> Self {
25         Self(IO_STATUS_BLOCK {
26             Anonymous: IO_STATUS_BLOCK_0 { Status: 0 },
27             Information: 0,
28         })
29     }
30 }
31 
32 impl Deref for IoStatusBlock {
33     type Target = IO_STATUS_BLOCK;
deref(&self) -> &Self::Target34     fn deref(&self) -> &Self::Target {
35         &self.0
36     }
37 }
38 
39 impl DerefMut for IoStatusBlock {
deref_mut(&mut self) -> &mut Self::Target40     fn deref_mut(&mut self) -> &mut Self::Target {
41         &mut self.0
42     }
43 }
44 
45 impl fmt::Debug for IoStatusBlock {
fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result46     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
47         f.debug_struct("IoStatusBlock").finish()
48     }
49 }
50