/*
 * Copyright 2011-2013, Ingo Weinhold, ingo_weinhold@gmx.de.
 * Distributed under the terms of the MIT License.
 */
#ifndef UNPACKING_NODE_H
#define UNPACKING_NODE_H


#include <SupportDefs.h>


class Node;
class PackageNode;


class UnpackingNode {
public:
        virtual                                         ~UnpackingNode();

        virtual Node*                           GetNode() = 0;

        virtual status_t                        AddPackageNode(PackageNode* packageNode,
                                                                        dev_t deviceID) = 0;
        virtual void                            RemovePackageNode(PackageNode* packageNode,
                                                                        dev_t deviceID) = 0;

        virtual PackageNode*            GetPackageNode() = 0;
        virtual bool                            IsOnlyPackageNode(PackageNode* node) const = 0;
        virtual bool                            WillBeFirstPackageNode(
                                                                        PackageNode* packageNode) const = 0;

        virtual void                            PrepareForRemoval() = 0;
        virtual status_t                        CloneTransferPackageNodes(ino_t id,
                                                                        UnpackingNode*& _newNode);

protected:
                        status_t                        NodeInitVFS(dev_t deviceID, ino_t nodeID,
                                                                        PackageNode* packageNode);
                        void                            NodeUninitVFS(PackageNode* packageNode,
                                                                        uint32& nodeFlags);
                        void                            NodeReinitVFS(dev_t deviceID, ino_t nodeID,
                                                                        PackageNode* packageNode,
                                                                        PackageNode* previousPackageNode,
                                                                        uint32& nodeFlags);
};


#endif  // UNPACKING_NODE_H