Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Re: Parallel::ForkManager and vars from the parent script - are they accessible? (or do I need inter process communication?)

by Zaxo (Archbishop)
on Aug 08, 2007 at 18:19 UTC ( #631362=note: print w/replies, xml ) Need Help??


in reply to Parallel::ForkManager and vars from the parent script - are they accessible? (or do I need inter process communication?)

The child gets a copy of the parent's vars but can never change the parent's copy. That's fundamental unix.

The parent can read data from a child through some IPC mechanism and make the change itself, but that won't change the copies already-launched children have. Yes, you need IPC.

Sysv IPC has a shared-memory facility which would seem to be just what you want, but sysv IPC is buggy with races and is rarely used.

After Compline,
Zaxo

  • Comment on Re: Parallel::ForkManager and vars from the parent script - are they accessible? (or do I need inter process communication?)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://631362]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others meditating upon the Monastery: (11)
As of 2016-09-30 13:05 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Extraterrestrials haven't visited the Earth yet because:







    Results (566 votes). Check out past polls.