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README.mkdn  view on Meta::CPAN

    - identification of the process (if provided in the "start" method)
    ```

- run\_on\_wait $code, \[$period\]

    You can define a subroutine which is called when the child process needs to wait
    for the startup. If $period is not defined, then one call is done per
    child. If $period is defined, then $code is called periodically and the
    module waits for $period seconds between the two calls. Note, $period can be
    fractional number also. The exact "$period seconds" is not guaranteed,
    signals can shorten and the process scheduler can make it longer (on busy
    systems).

    The $code called in the "start" and the "wait\_all\_children" method also.

    No parameters are passed to the $code on the call.

# BLOCKING CALLS

When it comes to waiting for child processes to terminate, `Parallel::ForkManager` is between
a fork and a hard place (if you excuse the terrible pun). The underlying Perl `waitpid` function

lib/Parallel/ForkManager.pm  view on Meta::CPAN

  - pid of the process which has been started
  - identification of the process (if provided in the "start" method)

=item run_on_wait $code, [$period]

You can define a subroutine which is called when the child process needs to wait
for the startup. If $period is not defined, then one call is done per
child. If $period is defined, then $code is called periodically and the
module waits for $period seconds between the two calls. Note, $period can be
fractional number also. The exact "$period seconds" is not guaranteed,
signals can shorten and the process scheduler can make it longer (on busy
systems).

The $code called in the "start" and the "wait_all_children" method also.

No parameters are passed to the $code on the call.

=back

=head1 BLOCKING CALLS