91 lines
2.1 KiB
PHP
91 lines
2.1 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2020, Friendica
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Model;
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use Friendica\Database\DBA;
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use Friendica\Util\DateTimeFormat;
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/**
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* functions for interacting with a process
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*/
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class Process
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{
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/**
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* Insert a new process row. If the pid parameter is omitted, we use the current pid
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*
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* @param string $command
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* @param string $pid
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* @return bool
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* @throws \Exception
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*/
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public static function insert($command, $pid = null)
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{
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$return = true;
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if (is_null($pid)) {
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$pid = getmypid();
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}
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DBA::transaction();
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if (!DBA::exists('process', ['pid' => $pid])) {
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$return = DBA::insert('process', ['pid' => $pid, 'command' => $command, 'created' => DateTimeFormat::utcNow()]);
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}
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DBA::commit();
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return $return;
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}
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/**
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* Remove a process row by pid. If the pid parameter is omitted, we use the current pid
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*
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* @param string $pid
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* @return bool
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* @throws \Exception
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*/
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public static function deleteByPid($pid = null)
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{
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if ($pid === null) {
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$pid = getmypid();
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}
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return DBA::delete('process', ['pid' => $pid]);
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}
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/**
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* Clean the process table of inactive physical processes
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*/
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public static function deleteInactive()
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{
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DBA::transaction();
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$processes = DBA::select('process', ['pid']);
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while($process = DBA::fetch($processes)) {
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if (!posix_kill($process['pid'], 0)) {
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self::deleteByPid($process['pid']);
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}
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}
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DBA::close($processes);
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DBA::commit();
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}
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}
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