mirror of https://github.com/friendica/friendica
87 lines
1.4 KiB
PHP
87 lines
1.4 KiB
PHP
<?php
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/**
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* @file src/Util/Pidfile.php
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*/
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namespace Friendica\Util;
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/**
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* @brief Pidfile class
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*/
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class Pidfile
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{
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private $file;
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private $running;
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private $pid;
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/**
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* @param string $dir path
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* @param string $name filename
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* @return void
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*/
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public function __construct($dir, $name)
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{
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$this->file = "$dir/$name";
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$this->running = false;
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if (file_exists($this->file)) {
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$this->pid = trim(@file_get_contents($this->file));
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if (($this->pid != "") && posix_kill($this->pid, 0)) {
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$this->running = true;
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}
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}
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if (!$this->running) {
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$this->pid = getmypid();
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file_put_contents($this->file, $this->pid);
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}
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}
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/**
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* @return void
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*/
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public function __destruct()
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{
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if (!$this->running && file_exists($this->file)) {
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@unlink($this->file);
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}
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}
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/**
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* @brief Check if a process with this pid file is already running
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* @return boolean Is it running?
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*/
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public function isRunning()
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{
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return $this->running;
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}
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/**
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* @brief Return the pid of the process
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* @return boolean process id
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*/
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public function pid()
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{
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return $this->pid;
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}
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/**
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* @brief Returns the seconds that the old process was running
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* @return integer run time of the old process
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*/
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public function runningTime()
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{
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return time() - @filectime($this->file);
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}
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/**
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* @brief Kills the old process
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* @return boolean
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*/
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public function kill()
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{
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if (!empty($this->pid)) {
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return posix_kill($this->pid, SIGTERM);
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}
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}
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}
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