Here is a skeleton of what you want.
my $max_threads = 5;
my $fork_mgr = new Parallel::ForkManager($max_threads);
my($child_pid, $exit_code, $child_id, $exit_signal, $core_dump
+) = @_;
# Code to store the results from each thread go here.
foreach my $item (@big_list)
$fork_mgr->start($url_ent) and next URL
# Code in this block will run in parallel
my $result = do_stuff($item);
# Store the final result. The value you pass to finish will be
# received by the sub you defined in run_on_finish
# Now all child threads have finished,
# your results should be available.
A few extra tips:
If you are running this code in the perl debugger, then you might want to debug the child threads. If so, run your program in a unix/linux xterm window. The debugger will create new xterm windows for each child thread, so you can separately step through the parent and the children
Conversely, if you don't want to step through the children, and your screen is filling up with windows from child threads, you can use the debug option: o inhibit_exit=0 To suppress the display of windows for child threads that finish without hitting a breakpoint.</c>
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||