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::io;
15 
16 use crate::builder::common_builder::impl_common;
17 use crate::builder::CommonBuilder;
18 use crate::executor::current_thread::CurrentThreadSpawner;
19 use crate::executor::{AsyncHandle, Runtime};
20 
21 /// RuntimeBuilder struct with current_thread settings.
22 pub struct CurrentThreadBuilder {
23     pub(crate) common: CommonBuilder,
24 }
25 
26 impl CurrentThreadBuilder {
new() -> Self27     pub(crate) fn new() -> Self {
28         CurrentThreadBuilder {
29             common: CommonBuilder::new(),
30         }
31     }
32 
33     /// Initializes the runtime and returns its instance.
build(&mut self) -> io::Result<Runtime>34     pub fn build(&mut self) -> io::Result<Runtime> {
35         let async_spawner = CurrentThreadSpawner::new();
36         Ok(Runtime {
37             async_spawner: AsyncHandle::CurrentThread(async_spawner),
38         })
39     }
40 }
41 
42 impl_common!(CurrentThreadBuilder);
43