NAME
Mojo::IOLoop::ReadWriteFork::SIGCHLD - Non-blocking waitpid for Mojolicious
DESCRIPTION
Mojo::IOLoop::ReadWriteFork::SIGCHLD is a module that can wait for a child process to exit. This is currently done either with "child" in EV or a recurring timer and waitpid.
ATTRIBUTES
$hash_ref = $sigchld->pids;Returns a hash ref where the keys are active child process IDs and the values are array-refs of callbacks passed on to "waitpid".
METHODS
is_waiting
$bool = $sigchld->is_waiting;Returns true if $sigchld is still has a recurring timer or waiting for a process to exit.
singleton
$sigchld = Mojo::IOLoop::ReadWriteFork::SIGCHLD->singleton;Returns a shared Mojo::IOLoop::ReadWriteFork::SIGCHLD object.
waitpid
$sigchld->waitpid($pid, sub { my ($exit_value) = @_ });Will call the provided callback with $? when the $pid is no longer running.