e7b7292e11
- Displayed fatal error when PMmemcached use class.fileCache.php - Fix problem, added missing methods in class.fileCache.php * Available from version ProcessMaker-2.0.46
126 lines
2.9 KiB
PHP
126 lines
2.9 KiB
PHP
<?php
|
|
/**
|
|
* class.memcached.php
|
|
*
|
|
* @package workflow.engine.ProcessMaker
|
|
*
|
|
* ProcessMaker Open Source Edition
|
|
* Copyright (C) 2004 - 2011 Colosa Inc.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* For more information, contact Colosa Inc, 2566 Le Jeune Rd.,
|
|
* Coral Gables, FL, 33134, USA, or email info@colosa.com.
|
|
*
|
|
*/
|
|
|
|
class FileCache
|
|
{
|
|
function __construct ($dir)
|
|
{
|
|
$this->dir = $dir;
|
|
}
|
|
|
|
private function _name($key)
|
|
{
|
|
return sprintf("%s%s", $this->dir, sha1($key));
|
|
}
|
|
|
|
public function get ($key, $expiration = 3600)
|
|
{
|
|
|
|
if (! is_dir( $this->dir ) or ! is_writable( $this->dir )) {
|
|
return FALSE;
|
|
}
|
|
|
|
$cache_path = $this->_name( $key );
|
|
|
|
if (! @file_exists( $cache_path )) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (filemtime( $cache_path ) < (time() - $expiration)) {
|
|
// $this->delete($key);
|
|
// different users can have different timeout requests
|
|
return FALSE;
|
|
}
|
|
|
|
if (! $fp = @fopen( $cache_path, 'rb' )) {
|
|
return FALSE;
|
|
}
|
|
|
|
flock( $fp, LOCK_SH );
|
|
|
|
$cache = '';
|
|
|
|
if (filesize( $cache_path ) > 0) {
|
|
$cache = unserialize( fread( $fp, filesize( $cache_path ) ) );
|
|
} else {
|
|
$cache = NULL;
|
|
}
|
|
|
|
flock( $fp, LOCK_UN );
|
|
fclose( $fp );
|
|
|
|
return $cache;
|
|
}
|
|
|
|
public function set ($key, $data)
|
|
{
|
|
|
|
if (! is_dir( $this->dir ) or ! is_writable( $this->dir )) {
|
|
return FALSE;
|
|
}
|
|
|
|
$cache_path = $this->_name( $key );
|
|
|
|
if (! $fp = fopen( $cache_path, 'wb' )) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (flock( $fp, LOCK_EX )) {
|
|
fwrite( $fp, serialize( $data ) );
|
|
flock( $fp, LOCK_UN );
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
fclose( $fp );
|
|
@chmod( $cache_path, 0777 );
|
|
return TRUE;
|
|
}
|
|
|
|
public function delete($key)
|
|
{
|
|
$cache_path = $this->_name($key);
|
|
|
|
if (file_exists($cache_path)) {
|
|
unlink($cache_path);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public function flush()
|
|
{
|
|
G::rm_dir($this->dir);
|
|
}
|
|
|
|
public function getStats()
|
|
{
|
|
return null;
|
|
}
|
|
}
|
|
|