/**
* method to register the stream wrapper
*
* Please be aware that a call to this method will reset the root element
* to null.
* If the stream is already registered the method returns silently. If there
* is already another stream wrapper registered for the scheme used by
* vfsStream a vfsStreamException will be thrown.
*
* @throws vfsStreamException
*/
public static function register()
{
self::$root = null;
self::$quota = Quota::unlimited();
if (true === self::$registered) {
return;
}
if (@stream_wrapper_register(vfsStream::SCHEME, __CLASS__) === false) {
throw new vfsStreamException('A handler has already been registered for the ' . vfsStream::SCHEME . ' protocol.');
}
self::$registered = true;
}
/**
* Unregisters a previously registered URL wrapper for the vfs scheme.
*
* If this stream wrapper wasn't registered, the method returns silently.
*
* If unregistering fails, or if the URL wrapper for vfs:// was not
* registered with this class, a vfsStreamException will be thrown.
*
* @throws vfsStreamException
* @since 1.6.0
*/
public static function unregister()
{
if (!self::$registered) {
if (in_array(vfsStream::SCHEME, stream_get_wrappers())) {
throw new vfsStreamException('The URL wrapper for the protocol ' . vfsStream::SCHEME . ' was not registered with this version of vfsStream.');
}
return;
}
if (!@stream_wrapper_unregister(vfsStream::SCHEME)) {
throw new vfsStreamException('Failed to unregister the URL wrapper for the ' . vfsStream::SCHEME . ' protocol.');
}
self::$registered = false;
}
