eeprom/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);

try {
    require_once __DIR__ . '/eeprom.php';

    $uploadsCtx = $eeprom->getUploadsContext();
    $uploadsData = $uploadsCtx->getUploadsData();

    // Mark expired as deleted
    $expired = $uploadsData->getUploads(expired: true, deleted: false);
    foreach($expired as $uploadInfo)
        $uploadsData->deleteUpload($uploadInfo);

    // Hard delete soft deleted files
    $deleted = $uploadsData->getUploads(deleted: true);
    foreach($deleted as $uploadInfo) {
        $uploadsCtx->deleteUploadData($uploadInfo);
        $uploadsData->nukeUpload($uploadInfo);
    }

    // new storage format should store by hashes again, ensure blacklisted data is no longer saved
} finally {
    sem_release($semaphore);
}