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116 lines
3.3 KiB
116 lines
3.3 KiB
19 years ago
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<?php
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/* vim: set expandtab tabstop=4 softtabstop=4 shiftwidth=4: */
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/**
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*
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* common OO-style shared memory API
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This source file is subject to version 3.0 of the PHP license
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* that is available through the world-wide-web at the following URI:
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* http://www.php.net/license/3_0.txt. If you did not receive a copy of
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* the PHP License and are unable to obtain it through the web, please
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* send a note to license@php.net so we can mail you a copy immediately.
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*
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* @category System
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* @package System_Sharedmemory
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* @author Evgeny Stepanischev <bolk@lixil.ru>
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* @copyright 2005 Evgeny Stepanischev
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* @license http://www.php.net/license/3_0.txt PHP License 3.0
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* @version CVS: $Id:$
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* @link http://pear.php.net/package/System_SharedMemory
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*/
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/**
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*
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* Backend independent OO-interface
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*
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* @category System
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* @package System_Sharedmemory
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* @package System_Sharedmemory
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* @author Evgeny Stepanischev <bolk@lixil.ru>
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* @copyright 2005 Evgeny Stepanischev
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* @license http://www.php.net/license/3_0.txt PHP License 3.0
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* @version CVS: $Id:$
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* @link http://pear.php.net/package/System_SharedMemory
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*/
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// {{{ class System_SharedMemory
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class System_SharedMemory
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{
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// {{{ &factory()
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/**
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* Create a new shared mem object
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*
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* @param string $type the shared mem type (or false on autodetect)
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* @param array $options an associative array of option names and values
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*
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* @return object a new System_Shared object
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*
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*/
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function &factory($type = false, $options = array())
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{
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if ($type === false) {
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$type = System_SharedMemory::getAvailableTypes(true);
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} else {
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$type = ucfirst(strtolower($type));
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}
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require_once dirname(__FILE__).'/SharedMemory/'.$type . '.php';
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$class = 'System_SharedMemory_' . $type;
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$ref = &new $class($options);
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return $ref;
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}
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// }}}
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// {{{ getAvailableTypes()
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/**
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* Get available types or first one
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*
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* @param bool $only_first false if need all types and true if only first one
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*
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* @return mixed list of available types (array) or first one (string)
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*
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*/
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function getAvailableTypes($only_first = false)
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{
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$detect = array
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(
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'eaccelerator' => 'Eaccelerator', // Eaccelerator (Turck MMcache fork)
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'mmcache' => 'Mmcache', // Turck MMCache
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'Memcache' => 'Memcache', // Memched
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'shmop_open' => 'Shmop', // Shmop
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'apc_fetch' => 'Apc', // APC
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'apache_note' => 'Apachenote', // Apache note
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'shm_get_var' => 'Systemv', // System V
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/*'sqlite_open' => 'Sqlite', */ // SQLite
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'file' => 'File', // Plain text
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'fsockopen' => 'Sharedance', // Sharedance
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);
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$types = array();
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foreach ($detect as $func=>$val) {
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if (function_exists($func) || class_exists($func)) {
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if ($only_first) {
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return $val;
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}
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$types[] = $val;
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}
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}
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return $types;
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}
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// }}}
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}
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// }}}
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?>
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