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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2006 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#include "common/stdafx.h"
#include "backends/fs/fs.h"
#include "common/util.h"
static AbstractFilesystemNode *_rootNode = 0;
static int *_rootRefCount = 0;
FilesystemNode AbstractFilesystemNode::wrap(AbstractFilesystemNode *node) {
FilesystemNode wrapper(node);
return wrapper;
}
FilesystemNode::FilesystemNode(AbstractFilesystemNode *realNode) {
_realNode = realNode;
_refCount = new int(1);
}
FilesystemNode::FilesystemNode() {
if (_rootNode == 0) {
_rootNode = getRoot();
_rootRefCount = new int(1);
}
_realNode = _rootNode;
_refCount = _rootRefCount;
++(*_refCount);
}
FilesystemNode::FilesystemNode(const FilesystemNode &node)
: AbstractFilesystemNode() {
_realNode = node._realNode;
_refCount = node._refCount;
++(*_refCount);
}
FilesystemNode::FilesystemNode(const Common::String &p) {
_realNode = getNodeForPath(p);
_refCount = new int(1);
}
FilesystemNode::~FilesystemNode() {
decRefCount();
}
void FilesystemNode::decRefCount() {
--(*_refCount);
if (*_refCount <= 0) {
delete _refCount;
delete _realNode;
}
}
FilesystemNode &FilesystemNode::operator =(const FilesystemNode &node) {
++(*node._refCount);
decRefCount();
_realNode = node._realNode;
_refCount = node._refCount;
return *this;
}
FilesystemNode FilesystemNode::getParent() const {
if (_realNode == 0)
return *this;
AbstractFilesystemNode *node = _realNode->parent();
if (node == 0) {
return *this;
} else {
return AbstractFilesystemNode::wrap(node);
}
}
FilesystemNode FilesystemNode::getChild(const String &name) const {
if (_realNode == 0)
return *this;
assert(_realNode->isDirectory());
AbstractFilesystemNode *node = _realNode->child(name);
return AbstractFilesystemNode::wrap(node);
}
FSList FilesystemNode::listDir(ListMode mode) const {
assert(_realNode);
assert(_realNode->isDirectory());
return _realNode->listDir(mode);
}
Common::String FilesystemNode::displayName() const {
assert(_realNode);
return _realNode->displayName();
}
bool FilesystemNode::isValid() const {
if (_realNode == 0)
return false;
return _realNode->isValid();
}
bool FilesystemNode::isDirectory() const {
if (_realNode == 0)
return false;
return _realNode->isDirectory();
}
Common::String FilesystemNode::path() const {
assert(_realNode);
return _realNode->path();
}
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