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 
16 use crate::sys::winapi::OVERLAPPED_ENTRY;
17 use crate::Event;
18 
19 #[repr(C)]
20 pub(crate) struct Overlapped {
21     // TODO: use in pipe
22     // inner: UnsafeCell<OVERLAPPED>,
23     pub(crate) callback: fn(&OVERLAPPED_ENTRY, Option<&mut Vec<Event>>),
24 }
25 
26 impl fmt::Debug for Overlapped {
fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result27     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
28         f.debug_struct("Overlapped").finish()
29     }
30 }
31 
32 unsafe impl Send for Overlapped {}
33 
34 unsafe impl Sync for Overlapped {}
35