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.