Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw

Re^3: fixed set of forked processes

by pileofrogs (Priest)
on Dec 02, 2010 at 21:45 UTC ( #875011=note: print w/replies, xml ) Need Help??

in reply to Re^2: fixed set of forked processes
in thread fixed set of forked processes

Your parent process will know the PID of each child process, so you can kill 0, $pid to see if it's running. Not sure what the performance implications are.

Since you were mentioning ps & grep, I thought I'd mention this simple alternative.

If all you want is to know if children are alive or dead, you might want to look into $SIG{CHLD} which tells you when kids die. That's in perlipc too.


Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://875011]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (7)
As of 2020-05-29 08:29 GMT
Find Nodes?
    Voting Booth?
    If programming languages were movie genres, Perl would be:

    Results (168 votes). Check out past polls.