mirror of
https://github.com/alchemy-fr/Phraseanet.git
synced 2025-10-10 11:33:17 +00:00
760 lines
21 KiB
PHP
Executable File
760 lines
21 KiB
PHP
Executable File
<?php
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use Monolog\Logger;
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abstract class task_abstract
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{
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const LAUCHED_BY_BROWSER = 1;
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const LAUCHED_BY_COMMANDLINE = 2;
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const STATE_TOSTOP = 'tostop';
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const STATE_STARTED = 'started';
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const STATE_TOSTART = 'tostart';
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const STATE_TORESTART = 'torestart';
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const STATE_STOPPED = 'stopped';
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const STATE_TODELETE = 'todelete';
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const RUNNER_MANUAL = 'manual';
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const RUNNER_SCHEDULER = 'scheduler';
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const STATE_OK = 'STATE_OK';
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const STATE_MAXMEGSREACHED = 'STATE_MAXMEGS';
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const STATE_MAXRECSDONE = 'STATE_MAXRECS';
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const STATE_FINISHED = 'STATE_FINISHED';
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const SIGNAL_SCHEDULER_DIED = 'SIGNAL_SCHEDULER_DIED';
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const ERR_ALREADY_RUNNING = 114; // aka EALREADY (Operation already in progress)
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/**
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*
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* @var Logger
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*/
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protected $logger;
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protected $suicidable = false;
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protected $launched_by = 0;
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/**
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* Number of records done
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*
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* @var <type>
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*/
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protected $records_done = 0;
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/**
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* Maximum number of records before we restart the task
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*
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* @var <type>
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*/
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protected $maxrecs;
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/**
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* Boolean switch to stop the task
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*
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* @var <type>
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*/
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protected $running = false;
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/**
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* current number of loops done
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*
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* @var <type>
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*/
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protected $loop = 0;
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/**
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* max number of loops before the task is restarted
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*
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* @var <type>
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*/
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protected $maxloops = 5;
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/**
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* task state, either ok, maxmemory or maxrecords reached
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*
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* @var <type>
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*/
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protected $current_state;
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/**
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* maximum memory allowed
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*
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* @var <type>
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*/
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protected $maxmegs;
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protected $runner;
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private $input;
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private $output;
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/**
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* delay between two loops
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*
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* @var <type>
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*/
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protected $title;
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protected $settings;
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protected $crash_counter;
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protected $status;
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protected $active;
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protected $debug = false;
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protected $completed_percentage;
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protected $period = 60;
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protected $taskid = NULL;
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protected $system = ''; // "DARWIN", "WINDOWS" , "LINUX"...
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protected $argt = array(
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"--help" => array("set" => false, "values" => array(), "usage" => " (no help available)")
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);
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/**
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* get the state of the task (task_abstract::STATE_*)
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*
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* @return String
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*/
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public function getState()
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{
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$conn = connection::getPDOConnection();
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$sql = 'SELECT status FROM task2 WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':taskid' => $this->taskid));
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$row = $stmt->fetch(PDO::FETCH_ASSOC);
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$stmt->closeCursor();
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if ( ! $row) {
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throw new Exception('Unknown task id');
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}
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return $row['status'];
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}
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/**
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* to be overwritten by tasks : echo text to be included in <head> in task interface
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*/
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public function printInterfaceHEAD()
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{
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return false;
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}
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/**
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* to be overwritten by tasks : echo javascript to be included in <head> in task interface
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*/
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public function printInterfaceJS()
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{
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return false;
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}
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/**
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*
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* @return boolean
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*/
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public function printInterfaceHTML()
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{
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return false;
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}
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/**
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*
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* @return boolean
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*/
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public function getGraphicForm()
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{
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return false;
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}
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/**
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* set the state of the task (task_abstract::STATE_*)
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*
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* @param String $status
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* @throws Exception_InvalidArgument
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*/
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public function setState($status)
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{
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$av_status = array(
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self::STATE_STARTED
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, self::STATE_TOSTOP
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, self::STATE_STOPPED
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, self::STATE_TORESTART
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, self::STATE_TOSTART
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, self::STATE_TODELETE
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);
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if ( ! in_array($status, $av_status)) {
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throw new Exception_InvalidArgument(sprintf('unknown status `%s`', $status));
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}
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$conn = connection::getPDOConnection();
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$sql = 'UPDATE task2 SET status = :status WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':status' => $status, ':taskid' => $this->getID()));
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$stmt->closeCursor();
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$this->log(sprintf("task %d <- %s", $this->getID(), $status));
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}
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// 'active' means 'auto-start when scheduler starts'
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public function setActive($boolean)
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{
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$conn = connection::getPDOConnection();
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$sql = 'UPDATE task2 SET active = :active WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':active' => ($boolean ? '1' : '0'), ':taskid' => $this->getID()));
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$stmt->closeCursor();
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$this->active = ! ! $boolean;
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return $this;
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}
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public function setTitle($title)
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{
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$title = strip_tags($title);
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$conn = connection::getPDOConnection();
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$sql = 'UPDATE task2 SET name = :title WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':title' => $title, ':taskid' => $this->getID()));
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$stmt->closeCursor();
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$this->title = $title;
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return $this;
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}
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public function setSettings($settings)
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{
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if (@simplexml_load_string($settings) === FALSE) {
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throw new Exception_InvalidArgument('Bad XML');
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}
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$conn = connection::getPDOConnection();
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$sql = 'UPDATE task2 SET settings = :settings WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':settings' => $settings, ':taskid' => $this->getID()));
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$stmt->closeCursor();
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$this->settings = $settings;
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$this->loadSettings(simplexml_load_string($settings));
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}
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public function resetCrashCounter()
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{
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$conn = connection::getPDOConnection();
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$sql = 'UPDATE task2 SET crashed = 0 WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':taskid' => $this->getID()));
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$stmt->closeCursor();
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$this->crash_counter = 0;
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return $this;
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}
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public function getCrashCounter()
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{
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return $this->crash_counter;
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}
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public function incrementCrashCounter()
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{
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$conn = connection::getPDOConnection();
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$sql = 'UPDATE task2 SET crashed = crashed + 1 WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':taskid' => $this->getID()));
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$stmt->closeCursor();
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return $this->crash_counter ++;
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}
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public function getSettings()
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{
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return $this->settings;
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}
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// 'active' means 'auto-start when scheduler starts'
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public function isActive()
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{
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return $this->active;
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}
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public function getCompletedPercentage()
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{
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return $this->completed_percentage;
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}
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abstract public function getName();
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abstract public function help();
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public function __construct($taskid, Logger $logger)
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{
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$this->logger = $logger;
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$this->taskid = $taskid;
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phrasea::use_i18n(Session_Handler::get_locale());
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$this->launched_by = array_key_exists("REQUEST_URI", $_SERVER) ? self::LAUCHED_BY_BROWSER : self::LAUCHED_BY_COMMANDLINE;
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try {
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$conn = connection::getPDOConnection();
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} catch (Exception $e) {
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$this->log($e->getMessage());
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$this->log(("Warning : abox connection lost, restarting in 10 min."));
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$this->sleep(60 * 10);
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$this->running = false;
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return('');
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}
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$sql = 'SELECT crashed, pid, status, active, settings, name, completed, runner
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FROM task2 WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':taskid' => $this->getID()));
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$row = $stmt->fetch(PDO::FETCH_ASSOC);
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$stmt->closeCursor();
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if ( ! $row) {
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throw new Exception('Unknown task id');
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}
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$this->title = $row['name'];
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$this->crash_counter = (int) $row['crashed'];
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$this->active = ! ! $row['active'];
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$this->settings = $row['settings'];
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$this->runner = $row['runner'];
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$this->completed_percentage = (int) $row['completed'];
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$this->loadSettings(simplexml_load_string($row['settings']));
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}
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public function getRunner()
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{
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return $this->runner;
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}
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public function setRunner($runner)
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{
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if ($runner != self::RUNNER_MANUAL && $runner != self::RUNNER_SCHEDULER) {
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throw new Exception_InvalidArgument(sprintf('unknown runner `%s`', $runner));
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}
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$this->runner = $runner;
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$conn = connection::getPDOConnection();
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$sql = 'UPDATE task2 SET runner = :runner WHERE task_id = :taskid';
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$params = array(
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':taskid' => $this->getID()
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, ':runner' => $this->runner
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);
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$stmt = $conn->prepare($sql);
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$stmt->execute($params);
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$stmt->closeCursor();
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}
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public function getTitle()
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{
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return $this->title;
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}
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public function delete()
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{
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if ( ! $this->getPID()) { // do not delete a running task
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$conn = connection::getPDOConnection();
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$registry = registry::get_instance();
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$sql = "DELETE FROM task2 WHERE task_id = :task_id";
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':task_id' => $this->getID()));
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$stmt->closeCursor();
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$lock_file = $registry->get('GV_RootPath') . 'tmp/locks/task_' . $this->getID() . '.lock';
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@unlink($lock_file);
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}
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}
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public function setLastExecTime()
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{
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$conn = connection::getPDOConnection();
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$sql = 'UPDATE task2 SET last_exec_time=NOW() WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':taskid' => $this->getID()));
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$stmt->closeCursor();
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}
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/**
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* Return the last time the task was executed
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* @return string
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*/
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public function getLastExecTime()
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{
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$conn = connection::getPDOConnection();
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$sql = 'SELECT last_exec_time FROM task2 WHERE task_id = :taskid';
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$stmt = $conn->prepare($sql);
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$stmt->execute(array(':taskid' => $this->getID()));
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$row = $stmt->fetch(PDO::FETCH_ASSOC);
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$stmt->closeCursor();
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return isset($row['last_exec_time']) ? $row['last_exec_time'] : '';
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}
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public function getPID()
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{
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$pid = NULL;
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$lockfile = $this->getLockfilePath();
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if (($fd = fopen($lockfile, 'a+')) != FALSE) {
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if (flock($fd, LOCK_EX | LOCK_NB) === FALSE) {
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// already locked ? : task running
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$pid = fgets($fd);
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} else {
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// can lock : not running
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flock($fd, LOCK_UN);
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}
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fclose($fd);
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}
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return $pid;
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}
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public function setRunning($stat)
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{
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$this->running = $stat;
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}
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protected function pause($when_started = 0)
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{
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$this->log($this->records_done . ' records done');
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if ($this->running) { // && $this->records_done == 0)
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$when_started = time() - $when_started;
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if ($when_started < $this->period) {
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for ($t = $this->period - $when_started; $this->running && $t > 0; $t -- ) { // DON'T do sleep($this->period - $when_started) because it prevents ticks !
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$s = $this->getState();
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if ($s == self::STATE_TOSTOP) {
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$this->setState(self::STATE_STOPPED);
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$this->running = FALSE;
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} else {
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sleep(1);
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}
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}
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}
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}
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}
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protected function sleep($nsec)
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{
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$nsec = (int) $nsec;
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if ($nsec < 0)
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throw new \InvalidArgumentException(sprintf("(%s) is not > 0"));
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while ($this->running && $nsec -- > 0) {
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sleep(1);
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}
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}
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private function getLockfilePath()
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{
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$core = \bootstrap::getCore();
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$lockdir = $core->getRegistry()->get('GV_RootPath') . 'tmp/locks/';
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$lockfile = ($lockdir . 'task_' . $this->getID() . '.lock');
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return($lockfile);
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}
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private function lockTask()
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{
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$lockfile = $this->getLockfilePath();
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$lockFD = fopen($lockfile, 'a+');
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$locker = true;
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if (flock($lockFD, LOCK_EX | LOCK_NB, $locker) === FALSE) {
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$this->log("runtask::ERROR : task already running.");
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fclose($lockFD);
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throw new Exception('task already running.', self::ERR_ALREADY_RUNNING);
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}
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// here we run the task
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ftruncate($lockFD, 0);
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fwrite($lockFD, '' . getmypid());
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fflush($lockFD);
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// for windows : unlock then lock shared to allow OTHER processes to read the file
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// too bad : no critical section nor atomicity
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flock($lockFD, LOCK_UN);
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flock($lockFD, LOCK_SH);
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return $lockFD;
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}
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final public function run($runner)
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{
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$lockFD = $this->lockTask();
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$this->setRunner($runner);
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$this->setState(self::STATE_STARTED);
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// run the real code of the task -into the task's class- (may throw an exception)
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$exception = NULL;
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try {
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$this->run2();
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} catch (\Exception $exception) {
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}
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// in any case, exception or not, the task is ending so unlock the pid file
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$this->unlockTask($lockFD);
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// if something went wrong, report
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if ($exception) {
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throw($exception);
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}
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}
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public function unlockTask($lockFD)
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{
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flock($lockFD, LOCK_UN | LOCK_NB);
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ftruncate($lockFD, 0);
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fclose($lockFD);
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$lockfile = $this->getLockfilePath();
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@unlink($lockfile);
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switch ($this->getState()) {
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case self::STATE_TODELETE:
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$this->delete();
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break;
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case self::STATE_TOSTOP:
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$this->setState(self::STATE_STOPPED);
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break;
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}
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}
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abstract protected function run2();
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protected function processLoop(&$box, &$rs)
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{
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$ret = self::STATE_OK;
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$rowstodo = count($rs);
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$rowsdone = 0;
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if ($rowstodo > 0) {
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$this->setProgress(0, $rowstodo);
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}
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foreach ($rs as $row) {
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try {
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// process one record
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$this->processOneContent($box, $row);
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} catch (Exception $e) {
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$this->log("Exception : " . $e->getMessage() . " " . basename($e->getFile()) . " " . $e->getLine());
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}
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$this->records_done ++;
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$this->setProgress($rowsdone, $rowstodo);
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// post-process
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$this->postProcessOneContent($box, $row);
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$current_memory = memory_get_usage();
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if ($current_memory >> 20 >= $this->maxmegs) {
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$this->log(sprintf("Max memory (%s M) reached (actual is %s M)", $this->maxmegs, $current_memory));
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$this->running = FALSE;
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$ret = self::STATE_MAXMEGSREACHED;
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}
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if ($this->records_done >= (int) ($this->maxrecs)) {
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$this->log(sprintf("Max records done (%s) reached (actual is %s)", $this->maxrecs, $this->records_done));
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$this->running = FALSE;
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$ret = self::STATE_MAXRECSDONE;
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}
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try {
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$status = $this->getState();
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if ($status == self::STATE_TOSTOP) {
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$this->running = FALSE;
|
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$ret = self::STATE_TOSTOP;
|
|
}
|
|
} catch (Exception $e) {
|
|
$this->running = FALSE;
|
|
}
|
|
|
|
if ( ! $this->running) {
|
|
break;
|
|
}
|
|
}
|
|
//
|
|
// if nothing was done, at least check the status
|
|
if (count($rs) == 0 && $this->running) {
|
|
|
|
$current_memory = memory_get_usage();
|
|
if ($current_memory >> 20 >= $this->maxmegs) {
|
|
$this->log(sprintf("Max memory (%s M) reached (current is %s M)", $this->maxmegs, $current_memory));
|
|
$this->running = FALSE;
|
|
$ret = self::STATE_MAXMEGSREACHED;
|
|
}
|
|
|
|
if ($this->records_done >= (int) ($this->maxrecs)) {
|
|
$this->log(sprintf("Max records done (%s) reached (actual is %s)", $this->maxrecs, $this->records_done));
|
|
$this->running = FALSE;
|
|
$ret = self::STATE_MAXRECSDONE;
|
|
}
|
|
|
|
try {
|
|
$status = $this->getState();
|
|
if ($status == self::STATE_TOSTOP) {
|
|
$this->running = FALSE;
|
|
$ret = self::STATE_TOSTOP;
|
|
}
|
|
} catch (Exception $e) {
|
|
$this->running = FALSE;
|
|
}
|
|
}
|
|
|
|
if ($rowstodo > 0) {
|
|
$this->setProgress(0, 0);
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
|
|
protected function loadSettings(SimpleXMLElement $sx_task_settings)
|
|
{
|
|
$this->period = (int) $sx_task_settings->period;
|
|
if ($this->period <= 0 || $this->period >= 60 * 60) {
|
|
$this->period = 60;
|
|
}
|
|
|
|
$this->maxrecs = (int) $sx_task_settings->maxrecs;
|
|
if ($sx_task_settings->maxrecs < 10 || $sx_task_settings->maxrecs > 1000) {
|
|
$this->maxrecs = 100;
|
|
}
|
|
$this->maxmegs = (int) $sx_task_settings->maxmegs;
|
|
if ($sx_task_settings->maxmegs < 16 || $sx_task_settings->maxmegs > 512) {
|
|
$this->maxmegs = 24;
|
|
}
|
|
$this->record_buffer_size = (int) $sx_task_settings->flush;
|
|
if ($sx_task_settings->flush < 1 || $sx_task_settings->flush > 100) {
|
|
$this->record_buffer_size = 10;
|
|
}
|
|
}
|
|
|
|
protected function incrementLoops()
|
|
{
|
|
if ($this->getRunner() == self::RUNNER_SCHEDULER && ++ $this->loop >= $this->maxloops) {
|
|
$this->log(sprintf(('%d loops done, restarting'), $this->loop));
|
|
$this->setState(self::STATE_TORESTART);
|
|
|
|
$this->running = false;
|
|
}
|
|
}
|
|
|
|
public function traceRam($msg = '')
|
|
{
|
|
static $lastt = null;
|
|
$t = explode(' ', ($ut = microtime()));
|
|
if ($lastt === null) {
|
|
$lastt = $t;
|
|
}
|
|
$dt = ($t[0] - $lastt[0]) + ($t[1] - $lastt[1]);
|
|
|
|
$m = memory_get_usage() >> 10;
|
|
$d = debug_backtrace(false);
|
|
|
|
$lastt = $t;
|
|
$this->logger->addDebug(memory_get_usage() . " -- " . memory_get_usage(true));
|
|
}
|
|
|
|
public function log($message)
|
|
{
|
|
if ($this->logger) {
|
|
$this->logger->addInfo($message);
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
public static function interfaceAvailable()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param appbox $appbox
|
|
* @param type $class_name
|
|
* @param type $settings
|
|
* @return task_abstract
|
|
*/
|
|
public static function create(appbox $appbox, $class_name, $settings = null)
|
|
{
|
|
if ( ! class_exists($class_name)) {
|
|
throw new Exception('Unknown task class');
|
|
}
|
|
|
|
$sql = 'INSERT INTO task2
|
|
(task_id, usr_id_owner, status, crashed, active,
|
|
name, last_exec_time, class, settings)
|
|
VALUES
|
|
(null, 0, "stopped", 0, :active,
|
|
:name, "0000/00/00 00:00:00", :class, :settings)';
|
|
|
|
|
|
if ($settings && ! DOMDocument::loadXML($settings)) {
|
|
throw new Exception('settings invalide');
|
|
} elseif ( ! $settings) {
|
|
$settings = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<tasksettings>\n</tasksettings>";
|
|
}
|
|
|
|
$params = array(
|
|
':active' => 1
|
|
, ':name' => $class_name::getName()
|
|
, ':class' => $class_name
|
|
, ':settings' => $settings
|
|
);
|
|
$stmt = $appbox->get_connection()->prepare($sql);
|
|
$stmt->execute($params);
|
|
$stmt->closeCursor();
|
|
|
|
$tid = $appbox->get_connection()->lastInsertId();
|
|
|
|
$core = \bootstrap::getCore();
|
|
|
|
return new $class_name($tid, $core['monolog']);
|
|
}
|
|
|
|
public function getUsage()
|
|
{
|
|
global $argc, $argv;
|
|
$t = "usage: " . $argv[0] . " [options]\noptions:\n";
|
|
foreach ($this->argt as $n => $v) {
|
|
$t .= "\t" . $n . $v["usage"] . "\n";
|
|
}
|
|
|
|
return($t);
|
|
}
|
|
|
|
public function getID()
|
|
{
|
|
return $this->taskid;
|
|
}
|
|
|
|
public function setProgress($done, $todo)
|
|
{
|
|
$p = ($todo > 0) ? ((100 * $done) / $todo) : -1;
|
|
|
|
try {
|
|
$conn = connection::getPDOConnection();
|
|
$sql = 'UPDATE task2 SET completed = :p WHERE task_id = :taskid';
|
|
$stmt = $conn->prepare($sql);
|
|
$stmt->execute(array(':p' => $p, ':taskid' => $this->getID()));
|
|
$stmt->closeCursor();
|
|
$this->completed_percentage = $p;
|
|
} catch (Exception $e) {
|
|
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
}
|