The exception is not passed back to the calling thread. If you want it to be, you can add a catch block and figure out a way to signal the calling thread. If the calling thread is a WinForms or WPF UI thread, you can use the SynchronizationContext class to pass a call to the … Read more
System.Threading.Timer has my vote. System.Timers.Timer is meant for use in server-based (your code is running as a server/service on a host machine rather than being run by a user) timer functionality. A Thread with a While loop and Thread.Sleep command is truly a bad idea given the existance of more robust Timer mecahnisms in .NET.
The simplest way to do it is to put: import time start_time = time.time() at the start and print “My program took”, time.time() – start_time, “to run” at the end.
Try this: import time t_end = time.time() + 60 * 15 while time.time() < t_end: # do whatever you do This will run for 15 min x 60 s = 900 seconds. Function time.time returns the current time in seconds since 1st Jan 1970. The value is in floating point, so you can even use … Read more
This is the second time I provide a WPF solution for a winforms problem. Just copy and paste my code in a file -> new project -> WPF Application and see the results for yourself. Also take a look at how simple this code really is (I’m using random values, so you can remove that … Read more
Reduce the number of updates to the required minimum Reduce the number of temporary objects as best as you can Ensure that all updates to the UI are made from within the context of the main UI thread (Event Dispatching Thread for Swing) Take a look at: Concurrency in Swing How to use Swing Timers … Read more
This works. The key is to have the task itself (after it completes) schedule the next occurrence of the task. import java.util.Timer; import java.util.TimerTask; public class TaskManager { private Timer timer = new Timer(); public static void main(String[] args) { TaskManager manager = new TaskManager(); manager.startTask(); } public void startTask() { timer.schedule(new PeriodicTask(), 0); } … Read more
You might try disabling the timer during processing, something like // Just in case someone wants to inherit your class and lock it as well … private static object _padlock = new object(); try { serviceTimer.Stop(); lock (_padlock) { // do some heavy processing… } } finally { serviceTimer.Start(); } Edit : OP didn’t specify … Read more
As I commented (further information in the link) you are doing it wrong : You are mixing the object holding thread data with another object (responsible of doIt()). They should be separated. There is no need to subclass QThread in your case. Worse, you are overriding the run method without any consideration of what it … Read more