timer

问题 I was trying to create a timer that depends on the system clock. That means when the system time changes it should affect the expiry of this timer too. So I thought, creating a timer based on CLOCK_REALTIME should do the trick. But when this timer is armed to expire after 60 sec and when I advanced the system clock by 32 sec (using date command), the timer expired exactly after 60 sec. It didn't expire 32 sec earlier. So I calculated the time elapsed for CLOCK_REALTIME and CLOCK_MONOTONIC

问题 In a clustered JEE6 environment (Glassfish 3.1.2), a @Singleton bean is/can be created on every cluster node. If this Singleton Bean registers a programmatic timer on its @PostConstruct - how often is the @Timeout method executed? -- on only one of that singletons (per tick), or once (per tick) for each Singeton that registered that a timer? Below the code is an example what this question mean to this code. @Singleton public class CachedService { @Resource private TimerService timerService;

问题 With this topic I would better discuss HR timers and the real precision issue. I studied a lot of documentation about them and I got confident them are the best and most reliable solution to the problem of delaying execution inside linux kernel modules, with the lesser cost for the CPU, and the greater timing precision (e.g. some time critical drivers use them too, like this one https://dev.openwrt.org/browser/trunk/target/linux/generic/files/drivers/pwm/gpio-pwm.c?rev=35328 ). Is it right

问题 I was reading this answer to a question about how to schedule a TIMERPROC to run immediately. I was interested in this as I need to run a method immediately after the caller has finished executing its code synchronously. So I came up with this skeleton: Private Sub asyncProc(ByVal HWnd As LongPtr, ByVal message As WindowsMessage, ByVal timerID As LongPtr, ByVal tickCount As Long) Debug.Print "asyncProc called (should be called second)" End Sub Private Sub syncProc() Debug.Print "syncProc

问题 Could you please tell me how do I go about pausing my program for 500 milliseconds and then continue? I read Thread.Sleep(500) is not good as it holds up the GUI thread. Using a timer it fires a callback ... I just want to wait 500ms and then continue to the next statement. Please advise. EDIT: I need to display a status bar message for 500ms and then update the message with a different one. Sorry, I meant 500 not 50. EDIT: I do understand what all you have said. but: [I just want to wait

问题 Dear Delphi programmers, I'm looking for help how to write a one-shot timer (No GUI, so VCL Timers out of question)... Let me explain a little bit more. In my code (explaining with VCL timer but in this particular project I have no forms): Call a procedure which send a char over serial port Enable a timer with a X amount of Interval In the OnTimer event: I have a code which send a char then disable the timer itself to never be executed again. The problem is that I need to make the creation of

问题 Is there a .NET Timer available in C# that can ensure there is no "drift" in between events? That is, if you set the timer to go off every X seconds, that after days of operating it won't drift, i.e. to ensure that approach number of X seconds events in a day remains in synch with what it should be? If not, is there a well known code example that would wrap a Timer function in C# to do this? 回答1: sorry for only giving you a link to quartz.net, but this is a fully qualified, enterprise, tested

问题 In Java I have a function that processes a text file in a certain way. However, if it takes too much time the process will most likely be useless (whatever the reason is) for that text file and I would like to skip it. Furthermore, if the process takes too long, it also uses too much memory. I've tried to solve it this way, but it doesn't work: for (int i = 0; i<docs.size(); i++){ try{ docs.get(i).getAnaphora(); } catch (Exception e){ System.err.println(e); } } where docs is just a List of

问题 I want to create wpf countdown timer that display the result as hh:mm:ss into textbox, I would be thankful for anyone help. 回答1: You can use DispatcherTimer class (msdn). Duration of time you can hold in TimeSpan structure (msdn). If you want formatting TimeSpan to hh:mm:ss you should invoke ToString method with "c" argument (msdn). Example: XAML: <Window x:Class="CountdownTimer.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com

问题 How to use timer in android for auto logout after 15 minutes due to inactivity of user? I am using bellow code for this in my loginActivity.java public class BackgroundProcessingService extends Service { @Override public IBinder onBind(Intent intent) { // TODO Auto-generated method stub timer = new CountDownTimer(5 *60 * 1000, 1000) { public void onTick(long millisUntilFinished) { //Some code //inactivity = true; timer.start(); Log.v("Timer::", "Started"); } public void onFinish() { //Logout