#!/usr/bin/env perl use v5.30.0; use strict; use warnings; use Carp qw/confess/; use POSIX qw/WNOHANG/; use Try::Tiny; use Cualsea::Server::Loop; use Cualsea::Server::MonitorController; my $pid = fork; if ($pid) {{ local $SIG{INT} = \&finish_parent; while (1) { my $loop = Cualsea::Server::Loop->new; try { $loop->run; } catch { confess $_; }; } finish_parent(); }} my $monitor_controller = Cualsea::Server::MonitorController->new; while (1) { $monitor_controller->loop; } sub finish_parent { kill 'INT', $pid; 1 while waitpid $pid, WNOHANG; exit; }