periodic-task

问题 in my app i have set a periodic job that is set to run every 30 minutes. The first job run occurs right when I do schedule that periodic job, which is not wanted in my case. What I want is to skip the first run so that it will run for the first time after 30+ minutes. My two thoughts on how to approach this was to either have it not run at all for the first 30 minutes somehow (some kind of delay), or mark the first job run as done before even having the chance to start. Unfortunately I have

问题 in my app i have set a periodic job that is set to run every 30 minutes. The first job run occurs right when I do schedule that periodic job, which is not wanted in my case. What I want is to skip the first run so that it will run for the first time after 30+ minutes. My two thoughts on how to approach this was to either have it not run at all for the first 30 minutes somehow (some kind of delay), or mark the first job run as done before even having the chance to start. Unfortunately I have

问题 in my app i have set a periodic job that is set to run every 30 minutes. The first job run occurs right when I do schedule that periodic job, which is not wanted in my case. What I want is to skip the first run so that it will run for the first time after 30+ minutes. My two thoughts on how to approach this was to either have it not run at all for the first 30 minutes somehow (some kind of delay), or mark the first job run as done before even having the chance to start. Unfortunately I have

问题 in my app i have set a periodic job that is set to run every 30 minutes. The first job run occurs right when I do schedule that periodic job, which is not wanted in my case. What I want is to skip the first run so that it will run for the first time after 30+ minutes. My two thoughts on how to approach this was to either have it not run at all for the first 30 minutes somehow (some kind of delay), or mark the first job run as done before even having the chance to start. Unfortunately I have

问题 I'm creating RSS app in PyQt and I'm trying to find a good way to program updates. I found this Executing periodic actions in Python but maybe there is Qt specific way to do this things. I know update period for each feed so I want to run update at specific time(hh:mm). Making 10 minute loop that will check current time and run a update if its grater than next predicted feed update seems missing the point of knowing specific time to run it. 回答1: You should use QTimer in Qt applications.

问题 (How) can I activate a periodic timer interrupt in Python? For example there is a main loop and a timer interrupt, which should be triggered periodically: def handler(): # do interrupt stuff def main(): init_timer_interrupt(<period>, <handler>); while True: # do cyclic stuff if __name__ == "__main__": main(); I have tried the examples found at Executing periodic actions in Python, but they are all either blocking the execution of main() , or start spawning new threads. 回答1: Any solution will

问题 I would like to schedule a periodic task which executes every X hours. I have a service which is written in Java and I was thinking of creating a long running background thread that runs forever as long as the service is up. How can I ensure that we are executing the task once every X hours? Is clock drift on my host an issue I should be worried about? I know that frequency of the clock ticks may change if the CPUs are working hard. Edit: I was thinking of adding a bean to my spring

问题 I have a requirement where I need to notify inactive users (who have not opened the app for 7 days). This means the notification must be sent if the app is in background for 7 days or the app has been killed and not used for 7 days. I followed an algorithm using AlarmManager similar to this answer but the notifications are not sent if the app gets killed. I tried to integrate BroadcastReceiver as shown below but it creates an infinite loop when I call it from OnDestroy() of CheckRecentRun

问题 I have a requirement where I need to notify inactive users (who have not opened the app for 7 days). This means the notification must be sent if the app is in background for 7 days or the app has been killed and not used for 7 days. I followed an algorithm using AlarmManager similar to this answer but the notifications are not sent if the app gets killed. I tried to integrate BroadcastReceiver as shown below but it creates an infinite loop when I call it from OnDestroy() of CheckRecentRun

问题 I have a requirement where I need to notify inactive users (who have not opened the app for 7 days). This means the notification must be sent if the app is in background for 7 days or the app has been killed and not used for 7 days. I followed an algorithm using AlarmManager similar to this answer but the notifications are not sent if the app gets killed. I tried to integrate BroadcastReceiver as shown below but it creates an infinite loop when I call it from OnDestroy() of CheckRecentRun