}
public function merge( $key, callable $callback, $exptime = 0, $attempts = 10, $flags = 0 ) {
- return $this->mergeViaCas( $key, $callback, $exptime, $attempts );
+ if ( wincache_lock( $key ) ) { // optimize with FIFO lock
+ $ok = $this->mergeViaLock( $key, $callback, $exptime, $attempts, $flags );
+ wincache_unlock( $key );
+ } else {
+ $ok = false;
+ }
+
+ return $ok;
}
}