I’d use TPL Dataflow for this (since you’re using .NET 4.5 and it uses Task internally). You can easily create an ActionBlock<TInput> which posts items to itself after it’s processed it’s action and waited an appropriate amount of time. First, create a factory that will create your never-ending task: ITargetBlock<DateTimeOffset> CreateNeverEndingTask( Action<DateTimeOffset> action, CancellationToken cancellationToken) … Read more
It depends on 4.5, but this works. public class PeriodicTask { public static async Task Run(Action action, TimeSpan period, CancellationToken cancellationToken) { while(!cancellationToken.IsCancellationRequested) { await Task.Delay(period, cancellationToken); if (!cancellationToken.IsCancellationRequested) action(); } } public static Task Run(Action action, TimeSpan period) { return Run(action, period, CancellationToken.None); } } Obviously you could add a generic version that takes … Read more
#include <windows.h> double PCFreq = 0.0; __int64 CounterStart = 0; void StartCounter() { LARGE_INTEGER li; if(!QueryPerformanceFrequency(&li)) cout << “QueryPerformanceFrequency failed!\n”; PCFreq = double(li.QuadPart)/1000.0; QueryPerformanceCounter(&li); CounterStart = li.QuadPart; } double GetCounter() { LARGE_INTEGER li; QueryPerformanceCounter(&li); return double(li.QuadPart-CounterStart)/PCFreq; } int main() { StartCounter(); Sleep(1000); cout << GetCounter() <<“\n”; return 0; } This program should output a number … Read more
Windows.Forms.Timer uses the windows forms message loop to process timer events. It should be used when writing timing events that are being used in Windows Forms applications, and you want the timer to fire on the main UI thread. DispatcherTimer is the WPF timing mechanism. It should be used when you want to handle timing … Read more
#include <sys/time.h> #include <stdio.h> #include <unistd.h> int main() { struct timeval start, end; long mtime, seconds, useconds; gettimeofday(&start, NULL); usleep(2000); gettimeofday(&end, NULL); seconds = end.tv_sec – start.tv_sec; useconds = end.tv_usec – start.tv_usec; mtime = ((seconds) * 1000 + useconds/1000.0) + 0.5; printf(“Elapsed time: %ld milliseconds\n”, mtime); return 0; }
You can use JavaScript Timing Events to call function after certain interval of time: This shows the alert box every 3 seconds: setInterval(function(){alert(“Hello”)},3000); You can use two method of time event in javascript.i.e. setInterval(): executes a function, over and over again, at specified time intervals setTimeout() : executes a function, once, after waiting a specified … Read more
Here’s a description of the primary timers and the points that i find to be the most noteworthy. Winforms.Timer ticks on UI thread ticks delayed until UI thread is idle will skip ticks if the UI thread is busy long enough for multiple ticks to pile up DispatcherTimer invoked on UI thread can set priority … Read more
Maybe. But you have bigger problems. gettimeofday() can result in incorrect timings if there are processes on your system that change the timer (ie, ntpd). On a “normal” linux, though, I believe the resolution of gettimeofday() is 10us. It can jump forward and backward and time, consequently, based on the processes running on your system. … Read more
What others have posted about running the function repeatedly in a loop is correct. For Linux (and BSD) you want to use clock_gettime(). #include <sys/time.h> int main() { timespec ts; // clock_gettime(CLOCK_MONOTONIC, &ts); // Works on FreeBSD clock_gettime(CLOCK_REALTIME, &ts); // Works on Linux } For windows you want to use the QueryPerformanceCounter. And here is … Read more
I had the same question, and used the DEBUG-flag to have the RunOnStartup only while debugging: public static void Run( [TimerTrigger(“* 0 7 * * 1-5” #if DEBUG , RunOnStartup=true #endif )]TimerInfo myTimer, TraceWriter log) {