update

inc/Hura8/System/CronProcess.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace Hura8\System;
+
+final class CronProcess
+{
+    private $pid;
+
+    /* @var FileSystem $objFileSystem */
+    private $objFileSystem;
+
+    const LOG_DIR = VAR_DIR . '/log/';
+    private $max_allow_run_time = 1800; // in seconds - max cron run time.
+
+    public function __construct($pid, $max_allow_run_time = 1800) {
+        $this->pid = $pid;
+        $this->objFileSystem = new FileSystem(self::LOG_DIR);
+        $this->max_allow_run_time = $max_allow_run_time;
+    }
+
+    public function getPidFile() {
+        return $this->objFileSystem->getFile($this->pid);
+    }
+
+    /**
+     * Check if the process is running. True if:
+     * - has pid file
+     * - the file's create-time within the time() and time() - $this->max_allow_run_time
+     *
+     * Else: False and remove pid file if exist
+     * @return bool
+     */
+    public function isRunning() : bool {
+
+        $file_exist = ($this->objFileSystem->getFile($this->pid));
+        if(!$file_exist) {
+            return false;
+        }
+
+        $last_modified_time = $this->objFileSystem->getFileLastModifiedTime($this->pid);
+
+        if($last_modified_time > 0 && $last_modified_time < time() - $this->max_allow_run_time) {
+
+            echo "Pid File exists but too old. Trying to auto-delete now". PHP_EOL;
+
+            if($this->objFileSystem->delete($this->pid)){
+                echo "File is deleted successfully". PHP_EOL;
+            }else{
+                echo "Auto-delete fails. File needs to be removed manually. Path: ". $this->objFileSystem->getFilename($this->pid). PHP_EOL;
+            }
+
+            return false;
+        }
+
+        return true;
+    }
+
+    public function start() {
+        return $this->objFileSystem->writeFile($this->pid, time());
+    }
+
+    public function finish() {
+        return $this->objFileSystem->delete($this->pid);
+    }
+
+}