135 lines
4.4 KiB
PHP
135 lines
4.4 KiB
PHP
<?php
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/*********************************************************************************
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*
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* TimeTrex is a Workforce Management program developed by
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* TimeTrex Software Inc. Copyright (C) 2003 - 2021 TimeTrex Software Inc.
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License version 3 as published by
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* the Free Software Foundation with the addition of the following permission
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* added to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED
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* WORK IN WHICH THE COPYRIGHT IS OWNED BY TIMETREX, TIMETREX DISCLAIMS THE
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* WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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*
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* You should have received a copy of the GNU Affero General Public License along
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* with this program; if not, see http://www.gnu.org/licenses or write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA.
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*
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*
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* You can contact TimeTrex headquarters at Unit 22 - 2475 Dobbin Rd. Suite
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* #292 West Kelowna, BC V4T 2E9, Canada or at email address info@timetrex.com.
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*
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU Affero General Public License version 3.
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*
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*
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* In accordance with Section 7(b) of the GNU Affero General Public License
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* version 3, these Appropriate Legal Notices must retain the display of the
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* "Powered by TimeTrex" logo. If the display of the logo is not reasonably
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* feasible for technical reasons, the Appropriate Legal Notices must display
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* the words "Powered by TimeTrex".
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*
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********************************************************************************/
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/**
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* @package Core
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*/
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/**
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* Class SharedMemory
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*/
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class SharedMemory {
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protected $obj = null;
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/**
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* SharedMemory constructor.
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*/
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function __construct() {
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global $config_vars;
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$cache_options = [
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'caching' => true,
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'cacheDir' => $config_vars['cache']['dir'] . DIRECTORY_SEPARATOR,
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'lifeTime' => 86400, //One day, cache should be cleared when the data is modified
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'fileLocking' => true,
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'writeControl' => true,
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'readControl' => true,
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'memoryCaching' => false,
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'onlyMemoryCaching' => false,
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'automaticSerialization' => true,
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//'hashedDirectoryLevel' => 1,
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'fileNameProtection' => false,
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'redisHost' => ( isset( $config_vars['cache']['redis_host'] ) ) ? $config_vars['cache']['redis_host'] : '',
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'redisDB' => ( isset( $config_vars['cache']['redis_db'] ) ) ? $config_vars['cache']['redis_db'] : '',
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];
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if ( isset( $config_vars['cache']['redis_host'] ) && $config_vars['cache']['redis_host'] != '' ) {
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//To reduce the number of connections to REDIS, share the same connection across all SharedMemory instances.
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// Both ProgressBar and RateLimit classes instantiate SharedMemory.
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global $tt_shared_memory_obj;
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if ( is_object( $tt_shared_memory_obj ) ) {
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$this->obj = $tt_shared_memory_obj;
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} else {
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$split_server = explode( ',', $config_vars['cache']['redis_host'] );
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$cache_options['redisHost'] = $split_server[0]; //Use just the master server, as shared memory doesn't need to span servers.
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require_once( Environment::getBasePath() . 'classes' . DIRECTORY_SEPARATOR . 'modules' . DIRECTORY_SEPARATOR . 'other' . DIRECTORY_SEPARATOR . 'Redis_Cache_Lite.class.php' );
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$tt_shared_memory_obj = $this->obj = new Redis_Cache_Lite( $cache_options );
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}
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} else {
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$this->obj = new Cache_Lite( $cache_options );
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}
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return true;
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}
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/**
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* @param $key
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* @param $value
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* @return bool
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*/
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function set( $key, $value ) {
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if ( is_string( $key ) ) {
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return $this->obj->save( $value, $key, 'sharedmemory' );
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}
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return false;
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}
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/**
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* @param $key
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* @return bool
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*/
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function get( $key ) {
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if ( is_string( $key ) ) {
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return $this->obj->get( $key, 'sharedmemory' );
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}
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return false;
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}
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/**
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* @param $key
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* @return bool
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*/
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function delete( $key ) {
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if ( is_string( $key ) ) {
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return $this->obj->remove( $key, 'sharedmemory' );
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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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