On 3/5/06, JupiterHost.Net <[EMAIL PROTECTED]> wrote:
>
>
> Saurabh Singhvi wrote:
> > thanks for all the help!!!> >
> > I am gonna try out all of them and settle with the best :).
>
> You'll likely want Acme::Spork's spork() because:
>
> a) You can run zillions of processes at the same time without waiting
> for them (the fork recommendation will do one at a time as if you had
> done: system($_) for @commands; so its not really what you wanted
> assumgin I understood the OP)
>
> b) Its *spork*, how cool is it to go to your boss and say "Yes, er, Mr
> BigPants I think our project would really benefit if we were to spork at
> this juncture", seriously that is *cool* :)
Acme::Spork and fork() provide exactly the same base functionality:
They're both front ends for the fork(2) system call. In fact,
Acme::Spork fork(). You can see that the following snippets produce
exactly the same results:
use Acme::Spork;
print 1;
spork(
sub {
sleep 5;
print "child\n"
},
);
print "parent\n";
and the standard:
my $child = fork ();
unless ($child) {
sleep 5;
print "child\n";
}
print "parent\n" if $child;
fork() only exhibits the behavior you describe if you issue a blocking
wait() or waitpid().
What Acme::Spork does is simplify the logic a bit when you want to
fork multiple children to do different things. Since fork() creates
and exact duplicate of the running process, you end up writing a lot
of if block and setting a lot of flags to make your children behave
differently. Acme::Spork makes it easier to fork a child to execute a
specific bit of code by executing the fork from an external process
that contains nothing except your coderef and the few lines of the
Acme::Spork code itself. You pass it a coderef and let the module
write the if-else block for you.
This is very useful, particularly if you're spawning a lot of children
for a program with a large resident memory size, but it's just a
wrapper for fork().
HTH,
-- jay
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