Hi. I've got some code that successfully forks off several child processes that do the same thing with different inputs.

for ($i = 1; $i <= 3; $i++) {
  if ($pid=fork) {
    $return = &my_function($i);
    print "Returned: $return\n";
    exit;
  }
}

print "All done.\n";
The problem is that the "All done" is printed firstly, and then the "Returned:" lines are printed. The output looks like this:

All done.
Returned: sub-process 3 is done.
Returned: sub-process 2 is done.
Returned: sub-process 1 is done.
What's the best way to wait for all those subprocesses to finish (don't worry, I have timeout trapping in &my_function) before proceeding with the rest of the code?

I've read the docs on perlipc and fork but can't quite find what I want. Thanks in advance for your help.

In reply to Forking and waiting by Silas

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