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 /// The data inside the epoll_event
15 #[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
16 pub struct Token(pub usize);
17 
18 impl Token {
19     /// Creates a Token from a usize.
from_usize(val: usize) -> Self20     pub fn from_usize(val: usize) -> Self {
21         Token(val)
22     }
23 }
24 
25 impl From<Token> for usize {
from(val: Token) -> usize26     fn from(val: Token) -> usize {
27         val.0
28     }
29 }
30