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 //! Mutex usage in ylong_runtime. 15 16 use std::sync::Arc; 17 use std::time::Instant; 18 19 use ylong_runtime::sync::Mutex; 20 main()21fn main() { 22 let mutex = Arc::new(Mutex::new(0)); 23 // Testing custom future logic 24 let handle = ylong_runtime::spawn(async move { 25 let start = Instant::now(); 26 for _ in 0..400_0000 { 27 let mut lock = mutex.lock().await; 28 *lock += 1; 29 } 30 let end = Instant::now(); 31 println!("{:?}", end - start); 32 }); 33 ylong_runtime::block_on(handle).unwrap(); 34 } 35