hello all,
i am thinking of adding the ability to fork into a script i've written
recently. the script acts on a list of nodes. currently it does this, one
at a time, which could prove to be a lengthy process for longer lists.
i was thinking that fork would allow me to spawn child pids and speed up
the process. i am reading from the camel book p167, however i'm a network
guy that somehow got involved in writing perl, so my understanding of
forks and processes is limited.
i'll skip putting in the whole of my code, but it can be summed up as:
for my $node(@devices) {
##subroutines
}
i'm not certain where i would fork to allow for X number of child
processes to be started at once, or whether the 'for' statement would be
rewritten. the example i am using to get familiar with fork is:
#!/usr/bin/perl -w
use strict;
my $i = "0"; my $pid;
while ($i < 5) {
FORK: {
if ($pid=fork) {
next;
} elsif (defined $pid) {
print "hello\n";
exit;
} else {
die "Cant fork! : $!\n";
}
}
$i++;
}
print "The End\n";
i dont think that i am drawing the lines very well. i'm not grasping how
fork can tie in with my existing code. any pointers are appreciated.
regards -c
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