eeprom-nabucco/cron.php

<?php
namespace EEPROM;

if(!defined('EEPROM_SEM_NAME'))
    define('EEPROM_SEM_NAME', 'c');
if(!defined('EEPROM_SFM_PATH'))
    define('EEPROM_SFM_PATH', sys_get_temp_dir() . DIRECTORY_SEPARATOR . '{6bf19abb-ae7e-4a1d-85f9-00dfb7c90264}');

if(!is_file(EEPROM_SFM_PATH))
    touch(EEPROM_SFM_PATH);

$ftok = ftok(EEPROM_SFM_PATH, EEPROM_SEM_NAME);
$semaphore = sem_get($ftok, 1);
if(!sem_acquire($semaphore))
    die('Failed to acquire semaphore.' . PHP_EOL);

require_once __DIR__ . '/eeprom.php';

// Mark expired as deleted
$expired = Upload::expired();
foreach($expired as $upload)
    $upload->delete(false);

// Hard delete soft deleted files
$deleted = Upload::deleted();
foreach($deleted as $upload)
    $upload->delete(true);

sem_release($semaphore);