WinCacheBagOStuff.php

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<?php
class WinCacheBagOStuff extends BagOStuff {
    protected function doGet( $key, $flags = 0 ) {
        $val = wincache_ucache_get( $key );
        if ( is_string( $val ) ) {
            $val = unserialize( $val );
        }
 
        return $val;
    }
 
    public function set( $key, $value, $expire = 0, $flags = 0 ) {
        $result = wincache_ucache_set( $key, serialize( $value ), $expire );
 
        /* wincache_ucache_set returns an empty array on success if $value
         * was an array, bool otherwise */
        return ( is_array( $result ) && $result === [] ) || $result;
    }
 
    public function delete( $key ) {
        wincache_ucache_delete( $key );
 
        return true;
    }
 
    public function merge( $key, callable $callback, $exptime = 0, $attempts = 10, $flags = 0 ) {
        if ( wincache_lock( $key ) ) { // optimize with FIFO lock
            $ok = $this->mergeViaLock( $key, $callback, $exptime, $attempts, $flags );
            wincache_unlock( $key );
        } else {
            $ok = false;
        }
 
        return $ok;
    }
}