schedule

Linux task schedule to Hour, minute, second

最后都变了- 提交于 2019-11-28 11:43:26
问题 I'm trying to run a shell script at a specific time up to it's seconds (H:M:S) , but so far all programs such as at only go up to a specific minute (not second). I don't want to use sleep since it's not accurate. For some reason it ended couple of hours earlier than it was supposed to! 回答1: Your question doesn't seem to define accuracy, but there is always some jitter in scheduling in electronic devices. You might use quartz to schedule to the second. You could also use at or cron to schedule

Getting Unavailable dates for renting a product that has stocks

感情迁移 提交于 2019-11-28 10:38:54
问题 Database queries, normally so simple, yet sometimes so difficult. (brain trainer) So I have products, stocks and rentStockOrders. These products can be rented for a set of days. The stocks also have a date when they are available. If a new product (stock) can be rented depends on the already rented stocks of that product. A stock item cannot be rented before it's available date. A rentStockOrder (linked between order and stocks) contains the bookings, thus rentStartDate and rentEndDate . A

Android Scheduled Notifications

非 Y 不嫁゛ 提交于 2019-11-28 10:37:25
问题 I'm building an app and I need to schedule a notification that remember the user to access the app. I need this notification to be shown a month ahead of the last time the app was used 回答1: AlarmManager has access to the system alarm services. With the help of AlarmManager you can schedule execution of code in future. AlarmManager object can’t instantiate directly however it can be retrieved by calling Context.getSystemService(Context.ALARM_SERVICE) . AlarmManager is always registered with

WIX Installer Preserve config file On major upgrade early Scheduling

泪湿孤枕 提交于 2019-11-28 10:35:56
问题 I am using Major upgrade early scheduling in my WIX Setup projects as below. I prefer to clear all files on upgrades. However I need to preserve a config file and restore again on upgrade. I don't want to change this early scheduling (Schedule="afterInstallInitialize"), as I will be ended with other issues. Is there any work around (Custom Actions?) to preserve the config file in the above early scheduling? 回答1: The way I deal with this problem is to have two files. You'll notice that app

Python - Working out if time now is between two times

寵の児 提交于 2019-11-28 10:18:49
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, onmin, offhour, offmin, verbose): now = datetime.datetime.now() now_time = now.time() # If we're

Identify and cancel an alarm send to an AlarmManager

喜欢而已 提交于 2019-11-28 02:28:20
问题 If I use the AlarmManager to schedule an alarm (a PendintIntent which should be send), how can I identify that alarm later to cancel it? Can I cancel all alarms scheduled by my app? 回答1: You probably want to have a closer look at the AlarmManager.cancel(PendingIntent operation) function. 来源: https://stackoverflow.com/questions/4212824/identify-and-cancel-an-alarm-send-to-an-alarmmanager

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

a 夏天 提交于 2019-11-28 02:25:15
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 return only work time from reservations in PostgreSql?

烂漫一生 提交于 2019-11-28 01:27:15
问题 Select from great answer in How to find first free time in reservations table in PostgreSql create table reservation (during tsrange, EXCLUDE USING gist (during WITH &&) ); is used to find gaps in schedule starting at given date and hour (2012-11-17 8: in sample below) It finds saturday, sunday and public holidays also. Public holidays are defined in table create table pyha ( pyha date primary key) How to exclude weekends and public holidays also? Hard-coding free time as reserved to query

How to stop immediately the task scheduled in Java.util.Timer class

[亡魂溺海] 提交于 2019-11-28 01:06:19
问题 I tried everything. This one too How to stop the task scheduled in Java.util.Timer class I have one task that implements java.util.TimerTask I call that task in 2 ways: I schedule Timer like this: timer.schedule(timerTask, 60 * 1000); sometimes I need that work to start immediately and it has to cancel timerTask if there is any that is working cancelCurrentWork(); timer.schedule(timerTask, 0); This implementation doesn't stop current work: (documentation says: If the task is running when this

How to use sched_getaffinity and sched_setaffinity in Linux from C?

穿精又带淫゛_ 提交于 2019-11-27 22:56:10
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. To use sched_setaffinity to make the current process run on core 7 you do this: cpu_set_t my_set; /* Define your cpu_set bit mask. */ CPU_ZERO(&my_set); /* Initialize it all