Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Re: Need to create a SCSI monitoring child process.

by LivingDust (Novice)
on May 23, 2013 at 15:20 UTC ( #1034964=note: print w/ replies, xml ) Need Help??


in reply to Need to create a SCSI monitoring child process.

In exploring solutions to my problem, I have discovered / learned a few things.

1) Tk is not thread safe. Forked or threaded processes cannot interact with Tk widgets.

2) IPC::Shareable was what I needed to share variables between separate processes. However the act of making it shareable seems to alter the references in such a way that I could not use the elements of my hash within an array as -textvariables.

3) I DON"T NEED A SEPARATE PROCESS AT ALL!

It turns out I can use the

$mw->repeat(100, \&subroutine)

quite effectively to issue commands to check the status of the SCSI bus. So my program is rocking quite nicely now.

There are only 10 types of people in this world... those who understand binary, and those who don't.


Comment on Re: Need to create a SCSI monitoring child process.
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1034964]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chanting in the Monastery: (11)
As of 2014-08-22 20:38 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The best computer themed movie is:











    Results (164 votes), past polls