schedule

How to schedule my android app to do something every hour

由 一世执手 提交于 2019-11-27 16:17:30
问题 I want my app to access database every hour and read next record from the table then update desctop widget and send notification. I know that there is AlarmManager which I can use to register my Intents but they are deleted when the phone is turned off or rebooted. Is there any other android class/service that I would update my application continuously even when I reboot my phone? Thanks, 回答1: take a look at the demo applications provided with android sdk http://developer.android.com/samples

What is the concept of vruntime in CFS

由 一笑奈何 提交于 2019-11-27 13:14:15
问题 I have been reading about Linux Kernel and CFS scheduler in the kernel. I came across vruntime (virtual runtime) that is the core concept behind CFS scheduler. I read from “ Linux Kernel Development ” and also from other blogs on internet but could not understand the basic calculations behind the vruntime . Does vruntime belong to a particular process or does it belong to a group of process with same nice values . What is the weighting factor and how is it calculated? I went through all these

AttributeError: Can't pickle local object 'computation.. function1 using multiprocessing queue

由 ℡╲_俬逩灬. 提交于 2019-11-27 08:24:59
问题 I have the following code using the scheduler and multiprocessing module: def computation(): def function1(q): while True: daydate = datetime.now() number = random.randrange(1, 215) print('Sent to function2: ({}, {})'.format(daydate, number)) q.put((daydate, number)) time.sleep(2) def function2(q): while True: date, number = q.get() print("Recevied values from function1: ({}, {})".format(date, number)) time.sleep(2) if __name__ == "__main__": q = Queue() a = Process(target=function1, args=(q,

Run java function every hour

由 坚强是说给别人听的谎言 提交于 2019-11-27 07:01:42
问题 I want to run a function every hour, to email users a hourly screenshot of their progress. I code set up to do so in a function called sendScreenshot() How can I run this timer in the background to call the function sendScreenshot() every hour, while the rest of the program is running? Here is my code: public int onLoop() throws Exception{ if(getLocalPlayer().getHealth() == 0){ playerHasDied(); } return Calculations.random(200, 300); } public void sendScreenShot() throws Exception{ Robot

EJB @Schedule wait until method completed

由 孤者浪人 提交于 2019-11-27 06:27:40
I want to write a back-ground job (EJB 3.1), which executes every minute. For this I use the following annotation: @Schedule(minute = "*/1", hour = "*") which is working fine. However, sometimes the job may take more than one minute. In this case, the timer is still fired, causing threading-issues. Is it somehow possible, to terminate the scheduler if the current execution is not completed? Arjan Tijms If only 1 timer may ever be active at the same time, there are a couple of solutions. First of all the @Timer should probably be present on an @Singleton . In a Singleton methods are by default

Python - Working out if time now is between two times

由 随声附和 提交于 2019-11-27 03:33:25
问题 I'm trying to find the cleanest/most pythonic way of evaluating if "now" is between two times; However; the Start/End times may, or may not, fall across a day boundary- for example (just using simple examples): onhour=23 onmin=30 offhour=4 offmin=15 timenow = datetime.datetime.now().time() Doing a straight if START < NOW < END scenario won't work for this! What I have currently is some code which evaluates if it's currently "NightTime", which looks like this: def check_time(timenow, onhour,

How to interrupt or stop currently running quartz job?

由 落花浮王杯 提交于 2019-11-27 03:09:49
问题 I have some tasks that are executed with the help of Java Quartz Jobs, but I need to stop some tasks by some condition in my code. I read that this can be done via InterruptableJob. But i didn't understand in what way i should do it? 回答1: You need to write a your job as an implementation of InterruptableJob. To interrupt this job, you need handle to Scheduler , and call interrupt(jobKey<<job name & job group>>) Please have a look @ javadoc for above classes, also quartz distribution contains

Java Spring @Scheduled tasks executing twice

由 人盡茶涼 提交于 2019-11-27 01:57:16
I have a simple test method here that is set to run every 5 seconds and it does, but looking at the System.out you can see it appears to be doing something odd. @Scheduled(cron="*/5 * * * * ?") public void testScheduledMethod() { System.out.println(new Date()+" > Running testScheduledMethod..."); } Output: Wed Jan 09 16:49:15 GMT 2013 > Running testScheduledMethod... Wed Jan 09 16:49:15 GMT 2013 > Running testScheduledMethod... Wed Jan 09 16:49:20 GMT 2013 > Running testScheduledMethod... Wed Jan 09 16:49:20 GMT 2013 > Running testScheduledMethod... Wed Jan 09 16:49:25 GMT 2013 > Running

auto add field each user using event nothing error and doesn't working

由 我是研究僧i 提交于 2019-11-26 23:42:52
问题 well i'm not familiar using event in phpmyadmin, so this is new for me been searching 2 days without results then quit cause weekend. this is my screen shoot doing event i have been testing by change date in local computer but nothing happend, then i decide to test simple event with this bellow event it working good, my question is why my first event doesn't working, Thanks 来源： https://stackoverflow.com/questions/35400140/auto-add-field-each-user-using-event-nothing-error-and-doesnt-working

How to use sched_getaffinity and sched_setaffinity in Linux from C?

由 删除回忆录丶 提交于 2019-11-26 20:38:38
问题 I am trying to: Run 16 copies concurrently with processor pinning (2 copies per core) Run 8 copies concurrently with processor pinning (2 copies per core) and flipping processor core to the furthest core after certain function say function 1 finishes. The problem I am facing is how to select the farthest processor. Some friends suggested to use sched_getaffinity and sched_setaffinity but I count not find any good examples. 回答1: To use sched_setaffinity to make the current process run on core
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