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fixed not working semaphore in asyncservice (we are not supporting table locks anymore / since 1.2)
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Ralf Becker
parent
8edd27dcdc
commit
55244dc6d9
@ -1,27 +1,17 @@
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#!/usr/bin/php -q
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<?php
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/**************************************************************************\
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* eGroupWare API - Timed Asynchron Services for eGroupWare *
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* Written by Ralf Becker <RalfBecker@outdoor-training.de> *
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* Class for creating cron-job like timed calls of eGroupWare methods *
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* -------------------------------------------------------------------------*
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* This library is part of the eGroupWare API *
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* http://www.egroupware.org/ *
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* ------------------------------------------------------------------------ *
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* This library is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as published by *
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* the Free Software Foundation; either version 2.1 of the License, *
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* or any later version. *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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* See the GNU Lesser General Public License for more details. *
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* You should have received a copy of the GNU Lesser General Public License *
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* along with this library; if not, write to the Free Software Foundation, *
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
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\**************************************************************************/
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/* $Id$ */
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/**
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* API - Timed Asynchron Services for eGroupWare
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*
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* @link http://www.egroupware.org
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* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @copyright Ralf Becker <RalfBecker-AT-outdoor-training.de>
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package api
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* @access public
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* @version $Id$
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*/
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$_GET['domain'] = isset($_SERVER['argv'][1]) ? $_SERVER['argv'][1] : 'default';
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$path_to_egroupware = realpath(dirname(__FILE__).'/../..'); // need to be adapted if this script is moved somewhere else
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@ -68,11 +58,12 @@
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exit(1);
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}
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include(PHPGW_API_INC.'/functions.inc.php');
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include(EGW_API_INC.'/functions.inc.php');
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$num = ExecMethod('phpgwapi.asyncservice.check_run','crontab');
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$msg = date('Y/m/d H:i:s ').$_GET['domain'].': '.($num ? "$num job(s) executed" : 'Nothing to execute')."\n\n";
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$msg = date('Y/m/d H:i:s ').$_GET['domain'].': '.($num === false ? 'An error occured: can not obtain semaphore!' :
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($num ? "$num job(s) executed" : 'Nothing to execute'))."\n\n";
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// if the following comment got removed, you will get an email from cron for every check performed (*nix only)
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//echo $msg;
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@ -82,4 +73,4 @@
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fwrite($f,$msg);
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fclose($f);
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}
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$GLOBALS['egw']->common->phpgw_exit();
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$GLOBALS['egw']->common->egw_exit();
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@ -320,7 +320,7 @@ class asyncservice
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}
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/**
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* checks when the last check_run was run or set the run-semaphore if $semaphore == True
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* checks when the last check_run was run or set the run-semaphore (async_next != 0) if $semaphore == True
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*
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* @param boolean $semaphore if False only check, if true try to set/release the semaphore
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* @param boolean $release if $semaphore == True, tells if we should set or release the semaphore
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@ -330,13 +330,6 @@ class asyncservice
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function last_check_run($semaphore=False,$release=False,$run_by='')
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{
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//echo "<p>last_check_run(semaphore=".($semaphore?'True':'False').",release=".($release?'True':'False').")</p>\n";
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if ($semaphore)
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{
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$this->db->lock($this->db_table,'write'); // this will block til we get exclusive access to the table
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@set_time_limit(0); // dont stop for an execution-time-limit
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ignore_user_abort(True);
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}
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if ($exists = $this->read('##last-check-run##'))
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{
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list(,$last_run) = each($exists);
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@ -347,26 +340,21 @@ class asyncservice
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{
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return $last_run['data'];
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}
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elseif (!$release && !$last_run['data']['end'] && $last_run['data']['start'] > time()-600)
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{
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// already one instance running (started not more then 10min ago, else we ignore it)
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$this->db->unlock(); // unlock the table again
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//echo "<p>An other instance is running !!!</p>\n";
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return False;
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}
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// no other instance runs ==> we should run
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//
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$where = array();
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if ($release)
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{
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$last_run['next'] = 0;
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$last_run['data']['end'] = time();
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}
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else
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{
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@set_time_limit(0); // dont stop for an execution-time-limit
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ignore_user_abort(True);
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$last_run = array(
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'id' => '##last-check-run##',
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'next' => 0,
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'next' => time(),
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'times' => array(),
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'method' => 'none',
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'data' => array(
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@ -375,13 +363,12 @@ class asyncservice
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'end' => 0
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)
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);
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// as the async_next column is used as a semaphore we only update it,
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// if it is 0 (semaphore released) or older then 10min to recover from failed or crashed attempts
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if ($exists) $where = array('async_next=0 OR async_next<'.time()-600);
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}
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//echo "last_run=<pre>"; print_r($last_run); echo "</pre>\n";
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$this->write($last_run,!!$exits);
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$this->db->unlock();
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return True;
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return $this->write($last_run,!!$exits,$where) > 0;
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}
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/**
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@ -448,7 +435,7 @@ class asyncservice
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}
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$this->last_check_run(True,True,$run_by); // release semaphore
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return $jobs ? count($jobs) : False;
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return $jobs ? count($jobs) : 0;
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}
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/**
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@ -502,8 +489,10 @@ class asyncservice
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*
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* @param array $job db-row as array
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* @param boolean $exits if True, we do an update, else we check if update or insert necesary
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* @param array $where additional where statemetn to update only if a certain condition is met, used for the semaphore
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* @return int affected rows, cat be 0 if an additional where statement is given
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*/
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function write($job,$exists = False)
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function write($job,$exists = False,$where=array())
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{
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$data = array(
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'async_next' => $job['next'],
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@ -520,6 +509,7 @@ class asyncservice
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{
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$this->db->insert($this->db_table,$data,array('async_id' => $job['id']),__LINE__,__FILE__);
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}
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return $this->db->affected_rows();
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}
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/**
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