timer

Run and stop a method for a minute

由 徘徊边缘 提交于 2021-01-27 07:22:41
问题 timer1= new System.Windows.Forms.Timer(); timer1.Interval =60000; // 1 min timer1.Start(); MyMethodName(); timer1.Stop(); MyMethodName() -has a for loop for 90,000 entries (and some validations inside that for loop). for (int i = 0; i <= 90000; i++) { //validations go here } When the time in timer1 is done for a minute, i want to stop executing other entries in the for loop. For example, if 45,000 entries are done in a minute, i want to stop executing the method ie. stop the method after a

How to execute a function after a period of inactivity in Flutter

由 余生长醉 提交于 2021-01-26 10:59:24
问题 I need to create an app that navigates a user to after a period of inactivity. I tried wrapping my app in GestureDetector and run a timer after a specified period as shown below but it is not working: class _MyAppState extends State<MyApp> { Timer _timer; @override void initState() { super.initState(); _initializeTimer(); } void _initializeTimer() { _timer = Timer.periodic(const Duration(seconds: 20), (_) => _logOutUser); } void _logOutUser() { Navigator.push( context, MaterialPageRoute(

How to execute a function after a period of inactivity in Flutter

由 心已入冬 提交于 2021-01-26 10:58:45
问题 I need to create an app that navigates a user to after a period of inactivity. I tried wrapping my app in GestureDetector and run a timer after a specified period as shown below but it is not working: class _MyAppState extends State<MyApp> { Timer _timer; @override void initState() { super.initState(); _initializeTimer(); } void _initializeTimer() { _timer = Timer.periodic(const Duration(seconds: 20), (_) => _logOutUser); } void _logOutUser() { Navigator.push( context, MaterialPageRoute(

How to execute a function after a period of inactivity in Flutter

由 天涯浪子 提交于 2021-01-26 10:58:03
问题 I need to create an app that navigates a user to after a period of inactivity. I tried wrapping my app in GestureDetector and run a timer after a specified period as shown below but it is not working: class _MyAppState extends State<MyApp> { Timer _timer; @override void initState() { super.initState(); _initializeTimer(); } void _initializeTimer() { _timer = Timer.periodic(const Duration(seconds: 20), (_) => _logOutUser); } void _logOutUser() { Navigator.push( context, MaterialPageRoute(

Javascript countdown timer timezone problem

由 拜拜、爱过 提交于 2021-01-07 06:31:26
问题 is it possible to have the countdown timer same for all people regardless of their timezone, when i put a date now the timer will show different depending on the timezone, and i want them to sync up so everyone get the same time, because now the "DONE" will display at different times depending on the country. heres the code Thanks for any help! :) <head> <title> TITLE TEXT </title> <meta charset="utf-8"> <meta name="Description" CONTENT="Text"> <link rel="icon" type="image/png" href="" />

Java Swing Timer

由 这一生的挚爱 提交于 2021-01-07 03:55:02
问题 ActionListener taskPerformer = new ActionListener() { public void actionPerformed(ActionEvent evt) { //...Perform a task... logger.finest("Reading SMTP Info."); } }; Timer timer = new Timer(100 ,taskPerformer); timer.setRepeats(false); timer.start(); According to the documentation this timer should fire once but it never fires. I need it to fire once. 回答1: This simple program works for me: import java.awt.event.*; import javax.swing.*; public class Test { public static void main(String []

Java Swing Timer

由 纵饮孤独 提交于 2021-01-07 03:54:37
问题 ActionListener taskPerformer = new ActionListener() { public void actionPerformed(ActionEvent evt) { //...Perform a task... logger.finest("Reading SMTP Info."); } }; Timer timer = new Timer(100 ,taskPerformer); timer.setRepeats(false); timer.start(); According to the documentation this timer should fire once but it never fires. I need it to fire once. 回答1: This simple program works for me: import java.awt.event.*; import javax.swing.*; public class Test { public static void main(String []

react redirect page on timeOut

由 ☆樱花仙子☆ 提交于 2020-12-12 06:05:30
问题 I am trying to redirect a page using React upon a setTimeOut. Still new to developing in general and very new to React so I'm a bit lost. Below is what I have so far... componentDidMount() { setTimeout(() => { ???????????('/') }, 1000) } 回答1: managed to figure it out. componentWillMount(){ setTimeout(() => { this.props.history.push('/'); }, 5000) } 来源： https://stackoverflow.com/questions/55399379/react-redirect-page-on-timeout

react redirect page on timeOut

由 笑着哭i 提交于 2020-12-12 06:03:48
问题 I am trying to redirect a page using React upon a setTimeOut. Still new to developing in general and very new to React so I'm a bit lost. Below is what I have so far... componentDidMount() { setTimeout(() => { ???????????('/') }, 1000) } 回答1: managed to figure it out. componentWillMount(){ setTimeout(() => { this.props.history.push('/'); }, 5000) } 来源： https://stackoverflow.com/questions/55399379/react-redirect-page-on-timeout

内核同步机制——自旋锁

由 瘦欲@ 提交于 2020-12-10 06:35:33
由于关键代码区可以跨越了多个函数或数据结构，需要有更通用的同步方法：锁。 内核中最常见的一种锁就是自旋锁。相同的锁可用于多处。 自旋锁可用在不可睡眠的场景，如中断处理函数。自旋锁是一种互斥设备，只有两个值： “ 锁定 ” 和 “ 非锁定 ” 。它通常实现为一个整数值的某个比特位。想获取某个锁的代码首先测试相关的位，如果锁可得，则该位的 “ 锁定 ” 位被置位，代码继续执行，反之，代码将进入一个紧凑的循环，不停地检测锁定位直至自旋锁变得可得。该循环是自旋锁的 “ 旋转 ” 部分。自旋锁主要用于多处理器的情况下。 1. 通用自旋锁 相关操作： DEFINE_SPINLOCK(mr_lock) spinlock_tmy_lock = SPIN_LOCK_UNLOCKED;// 静态初始化 或 voidspin_lock_init(spinlock_t *lock);// 动态初始化 获取自旋锁 voidspin_lock(spinlock_t *lock);// 不可中断的 释放自旋锁 voidspin_unlock(spinlock_t *lock); 使用自旋锁时要禁止中断，禁止睡眠，并且应当尽可能减少占用自旋锁的时间。 其他函数 voidspin_lock(spinlock_t *lock); // 在获取自旋锁之前，禁止中断 voidspin_lock_irqsave
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