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   1  <?php
   2  /**
   3   * Object caching using WinCache.
   4   *
   5   * This program is free software; you can redistribute it and/or modify
   6   * it under the terms of the GNU General Public License as published by
   7   * the Free Software Foundation; either version 2 of the License, or
   8   * (at your option) any later version.
   9   *
  10   * This program is distributed in the hope that it will be useful,
  11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13   * GNU General Public License for more details.
  14   *
  15   * You should have received a copy of the GNU General Public License along
  16   * with this program; if not, write to the Free Software Foundation, Inc.,
  17   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18   * http://www.gnu.org/copyleft/gpl.html
  19   *
  20   * @file
  21   * @ingroup Cache
  22   */
  23  
  24  /**
  25   * Wrapper for WinCache object caching functions; identical interface
  26   * to the APC wrapper
  27   *
  28   * @ingroup Cache
  29   */
  30  class WinCacheBagOStuff extends BagOStuff {
  31  
  32      /**
  33       * Get a value from the WinCache object cache
  34       *
  35       * @param string $key Cache key
  36       * @param int $casToken [optional] Cas token
  37       * @return mixed
  38       */
  39  	public function get( $key, &$casToken = null ) {
  40          $val = wincache_ucache_get( $key );
  41  
  42          $casToken = $val;
  43  
  44          if ( is_string( $val ) ) {
  45              $val = unserialize( $val );
  46          }
  47  
  48          return $val;
  49      }
  50  
  51      /**
  52       * Store a value in the WinCache object cache
  53       *
  54       * @param string $key Cache key
  55       * @param mixed $value Value to store
  56       * @param int $expire Expiration time
  57       * @return bool
  58       */
  59  	public function set( $key, $value, $expire = 0 ) {
  60          $result = wincache_ucache_set( $key, serialize( $value ), $expire );
  61  
  62          /* wincache_ucache_set returns an empty array on success if $value
  63             was an array, bool otherwise */
  64          return ( is_array( $result ) && $result === array() ) || $result;
  65      }
  66  
  67      /**
  68       * Store a value in the WinCache object cache, race condition-safe
  69       *
  70       * @param int $casToken Cas token
  71       * @param string $key Cache key
  72       * @param int $value Object to store
  73       * @param int $exptime Expiration time
  74       * @return bool
  75       */
  76  	public function cas( $casToken, $key, $value, $exptime = 0 ) {
  77          return wincache_ucache_cas( $key, $casToken, serialize( $value ) );
  78      }
  79  
  80      /**
  81       * Remove a value from the WinCache object cache
  82       *
  83       * @param string $key Cache key
  84       * @param int $time Not used in this implementation
  85       * @return bool
  86       */
  87  	public function delete( $key, $time = 0 ) {
  88          wincache_ucache_delete( $key );
  89  
  90          return true;
  91      }
  92  }