Jump to content United States-English
HP.com Home Products and Services Support and Drivers Solutions How to Buy
» Contact HP
HP.com home

HP OpenVMS Systems

Ask the Wizard
» 

HP OpenVMS Systems

OpenVMS information

» What's new on our site
» Upcoming events
» Configuration and buying assistance
» Send us your comments

HP OpenVMS systems

» OpenVMS software
» Supported Servers
» OpenVMS virtualization
» OpenVMS solutions and partners
» OpenVMS success stories
» OpenVMS service and support
» OpenVMS resources and information
» OpenVMS documentation
» Education and training

Evolving business value

» Business Systems Evolution
» AlphaServer systems transition planning
» Alpha RetainTrust program

Related links

» HP Integrity servers
» HP Alpha systems
» HP storage
» HP software
» HP products and services
» HP solutions
» HP support
disaster proof
HP Integrity server animation
Content starts here

Ask the Wizard Questions

Killing a process after a pre-determined amount of time

The Question is:

Dear Wizards,

Do you know of a program that will kill a process after a pre-determined amount of time?

We have a paging process written in Focus that when pulled up on a terminal, HITMAN will not kill the session because it sees the Focus program is active. I would like to have a program that basically starts a timer when it sees the pager process become active and then kill the process after a certain amount of time.

Enough info! Thanks!!


The Answer is:

Despite the name, I gather this is not an excessive page faulting problem. If it is then perhaps increasing the working set size and/or physical memory is in order.

I also gather that simply training the users to exit the "pager/paging" application is not sufficent.

The problem is if you do figure out how to kill a process running the application after a fixed amount of time, you might be doing the wrong thing, inasmuchas the user would have to restart.

The application must be fooling HITMAN somehow. The best way to determine if there's a user still making use of the application is to time input.

Whereas the following loop should not defeat HITMAN;

	$ loop:
	$ show time
	$ wait 0:1
	$ goto loop

the following could;

	$ loop:
	$ set terminal /inquire
	$ wait 0:1
	$ goto loop

The difference is the set terminal /inquire command causes the terminal (or emulator) to send a sequence of bytes which look a whole lot like user keystrokes. If HITMAN is fooled by the first loop then the application might be ticking a clock on the display.


 

** About PDF files: The PDF files on this Web site can be read online or printed using Adobe® Acrobat® Reader. If you do not have this software installed on your system, you may download it from the Adobe Web site.
Privacy statement Using this site means you accept its terms Feedback to webmaster
© 2008 Hewlett-Packard Development Company, L.P.