timer

问题 i want my website(C#) will call async every 15 min to some c# function how can i do that? thanks 回答1: There is a standard Ajax (utilising client side Javascript) Timer Control that is part of the .Net Ajax Framework which is included with all versions of ASP.Net 3.5 up, prior to that the Ajax controls were available as a seperate download. From the MSDN Library Timer Control Overview: The Microsoft Ajax Timer control performs postbacks at defined intervals. If you use the Timer control with

问题 I have a cross platform c++ program where I'm using the boost libraries to create an asynchronous timer. I have a global variable: bool receivedInput = false; One thread waits for and processes input string argStr; while (1) { getline(cin, argStr); processArguments(argStr); receivedInput = true; } The other thread runs a timer where a callback gets called every 10 seconds. In that callback, I check to see if I've received a message if (receivedInput) { //set up timer to fire again in 10

问题 I have a cross platform c++ program where I'm using the boost libraries to create an asynchronous timer. I have a global variable: bool receivedInput = false; One thread waits for and processes input string argStr; while (1) { getline(cin, argStr); processArguments(argStr); receivedInput = true; } The other thread runs a timer where a callback gets called every 10 seconds. In that callback, I check to see if I've received a message if (receivedInput) { //set up timer to fire again in 10

问题 I'm trying to show a label to say that all is correct only for 3 seconds in JRE 8 because I can't use DatePicker in JRE 7 and I recive this error. Exception in thread "Timer-2" java.lang.IllegalStateException: Not on FX application thread; currentThread = Timer-2 at com.sun.javafx.tk.Toolkit.checkFxUserThread(Unknown Source) at com.sun.javafx.tk.quantum.QuantumToolkit.checkFxUserThread(Unknown Source) at javafx.scene.Scene.addToDirtyList(Unknown Source) at javafx.scene.Node

问题 There is a problem with standard System.Timers.Timer behaviour. The timer raise Elapsed event with some interval. But when time of execution inside Elapsed event handler exceed timer interval then thread pool begin queuing event handling. This is a problem in my case. This is because with my Elapsed event handler I fetch some data from database and doing something with it and finally save results back to database. But data handling should be provided only once. So, is there a way to prevent

问题 At unpredictable times (user request) I need to run a memory-intensive job. For this I get a spot or on-demand instance and mark it with a tag as non_idle . When the job is done (which may take hours), I give it the tag idle . Due to the hourly billing model of AWS, I want to keep that instance alive until another billable hour is incurred in case another job comes in. If a job comes in, the instance should be reused and marked it as non_idle . If no job comes in during that time, the

问题 I have a multi-threaded SMTP server. Each thread takes care of one client. I need to set a timeout value of 10 seconds on each server thread to terminate dormant or misbehaving clients. I have used the time.time() , to find the start time and my checkpoint time and the difference gives the running time. But I believe it gives the system time and not the time this thread was running. Is there a Thread local timer API in Python ? import threading stop = 0 def hello(): stop = 1 t=threading.Timer

问题 I am using QueryPerformanceCounter to time some code. I was shocked when the code starting reporting times that were clearly wrong. To convert the results of QPC into "real" time you need to divide by the frequency returned from QueryPerformanceFrequency, so the elapsed time is: Time = (QPC.end - QPC.start)/QPF After a reboot, the QPF frequency changed from 2.7 GHz to 4.1 GHz. I do not think that the actual hardware frequency changed as the wall clock time of the running program did not

问题 I have a timer that needs to not process its elapsed event handler at the same time. But processing one Elapsed event may interfere with others. I implemented the below solution, but something feels wrong; it seems like either I should be using the timer differently or using another object within the threading space. The timer seemed to fit best because I do need to periodically check for a status, but sometimes checking will take longer than my interval. Is this the best way to approach this

问题 I'm trying to implement something like a countdown timer that plays an alarm at 0. I want to be able to set the amount of time to wait before the timer goes off and I'm wondering if there's a UI widget or element that provides this kind of selection functionality. Basically, does android have something like the iPhone's selection spinwheel? Or is there some type of timepicker that allows selection of an arbitrary number of hours and minutes? The timepicker widget in android has an unnecessary