Timer and Time-Based Events

Thread Tools Search this Thread
Special Forums News, Links, Events and Announcements Complex Event Processing RSS News Timer and Time-Based Events
# 1  
Old 11-25-2007
Timer and Time-Based Events

Tim Bass
Sun, 25 Nov 2007 09:11:58 +0000
Opher asks in his blog, Is there a non-event event ? on absence as a pattern.
All “non-event” examples that the*event processing*community has offered, to date, have been based on the premise that an event is created when something does not happen based on time, schedule or a timer - and many seem to want to refer to this as a*”non event.”
Opher is now calling this situation an “absent event.”
In my opinion, the correct term should be a “time-based event” because the event is triggered by a timer or similar time-based object; the*term “non-event” should be dropped from the event processing glossary.

Login or Register to Ask a Question

Previous Thread | Next Thread

5 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk: time intervals based on epoch time

I have a list of epoch times delimited by "-" as follows: 1335078000 - 1335176700 1335340800 - 1335527400 1335771300 - 1335945600 1336201200 - 1336218000 The corresponding dates are: 20120422 1000 - 20120423 1325 20120425 1100 - 20120427 1450 20120430 1035 - 20120502 1100 ... (3 Replies)
Discussion started by: alex2005
3 Replies

2. UNIX for Dummies Questions & Answers

Condition based on Timestamp (Date/Time based) from logfile (Epoch seconds)

Below is the sample logfile: Userids Date Time acb Checkout time: 2013-11-20 17:00 axy Checkout time: 2013-11-22 12:00 der Checkout time: 2013-11-17 17:00 xyz Checkout time: 2013-11-19 16:00 ddd Checkout time: 2013-11-21 16:00 aaa Checkout... (9 Replies)
Discussion started by: asjaiswal
9 Replies

3. Shell Programming and Scripting

Sleep timer based on hostname

Dear all I have a bunch of hosts which I need to run a common script. I need a sleep timee which will delay the execution based on the hostname. Usually the hostname of the servers are host01, host02 .. host16 with which I cam up with this - #!/bin/bash sleeptimer=$(( $(hostname -s|tr -cd... (3 Replies)
Discussion started by: deunan
3 Replies

4. Shell Programming and Scripting

Running a process based on time

Hello All, My script is nearly complete, there is just one last piece that needs to be added in. I need to check for the time, and if it is lets say for example. Sunday at 5:00AM, my script cannot run. I would assume it would be something like this, parden the terrible pseudocode ... (7 Replies)
Discussion started by: jeffs42885
7 Replies

5. Programming

Recv() call with timer(time out )

Hi all, I am facing a problem in recv() system call i.e.. in my project i have to implement timer for sending (data) and resending purpose when there is no acknowledgement. is there any way that recv() sys call has its own timer i.e., for ex: recv() has to wait for 10 secs. if any one knows... (2 Replies)
Discussion started by: Rohil
2 Replies
Login or Register to Ask a Question
pod::Prima::Timer(3)					User Contributed Perl Documentation				      pod::Prima::Timer(3)

Prima::Timer - programmable periodical events SYNOPSIS
my $timer = Prima::Timer-> create( timeout => 1000, # milliseconds onTick => sub { print "tick! "; }, ); $timer-> start; DESCRIPTION
Prima::Timer arranges periodical notifications to be delivered in certain time intervals. The notifications are triggered by the system, and are seen as "Tick" events. There can be many active Timer objects at one time, spawning events simultaneously. USAGE
Prima::Timer is a descendant of Prima::Component. Objects of Prima::Timer class are created in standard fashion: my $t = Prima::Timer-> create( timeout => 1000, onTick => sub { print "tick "; }, ); $t-> start; If no `owner` is given, $::application is assumed. Timer objects are created in inactive state; no events are spawned. To start spawning events, <start()> method must be explicitly called. Time interval value is assigned using the <::timeout> property in milliseconds. When the system generates timer event, no callback is called immediately, - an event is pushed into stack instead, to be delivered during next event loop. Therefore, timeout value is not held accurately, and events may take longer time to pass. More accurate timing scheme, as well as timing with precision less than a millisecond, is not supported by the toolkit. API
Properties timeout MILLISECONDS Manages time interval between "Tick" events. In set-mode call, if the timer is in active state ( see "get_active()", the new timeout value is applied immediately. Methods get_active Returns a boolean flag, whether object is in active state or not. In the active state "Tick" events are spawned after "::timeout" time intervals. get_handle Returns a system-dependent handle of object start Sets object in active state. If succeed, or if the object is already in active state, returns 1. If the system was unable to create a system timer instance, 0 is returned. stop Sets object in inactive state. Events Tick A system generated event, spawned every "::timeout" milliseconds if object is in active state. AUTHOR
Dmitry Karasik, <dmitry@karasik.eu.org>. SEE ALSO
Prima, Prima::Object perl v5.14.2 2009-02-24 pod::Prima::Timer(3)