Category : Alternate Operating Systems - Quarterdeck DesqView, CP/M, etc
Archive   : PCCAPP.ZIP
Filename : NVLIST.H

/*
* This file is part of the Choices Operating System
* Developed by: The TAPESTRY Parallel Computing Laboratory
* University of Illinois at Urbana-Champaign
* Department of Computer Science
* 1304 W. Springfield Ave.
* Urbana, IL 61801
*
* Copyright (c) 1987, 1988, 1989 The University of Illinois Board of Trustees.
* All Rights Reserved.
* CONFIDENTIAL INFORMATION. Distribution restricted under license agreement.
*
* Author: Aamod Sane ([email protected])
* Project Manager and Principal Investigator: Roy Campbell ([email protected])
*
* Funded by: NSF TAPESTRY Grant No. 1-5-30035, NASA ICLASS Grant
* No. 1-5-25469 and No. NSG1471 and AT&T Metronet Grant No. 1-5-37411.
*/
/*
* NVList.h - List varieties
*
* $Header: /home/srg/sane/workspace/tbl/RCS/List.h,v 1.2 91/01/23 18:06:48 sane Exp Locker: sane $
*/

#include "Link.h"
#include "LightList.h"

#ifndef NVList_h
#define NVList_h

//
// A doubly linked list without using virtual functions
// We can use most of the LightList, modify the basic
// add/remove to do the right thing to the second link
// and we are in business. See LightList for further comments
//

class NVListVirtualiser : public LightListVirtualiser {
public:
virtual void destroy( SLink * );
virtual void inspect( SLink * );
virtual void add( LightList * l,
SLink * newEntry, SLink * oldEntry, int head = 0 );
virtual SLink * remove( LightList * l,
SLink * oldEntry, int nth=0);
};

class NVList : public LightList {
public:
NVList();
NVList(NVLink * l);
~NVList();

// add which takes care of the second link
void add( SLink * newEntry, SLink * oldEntry, int head = 0 );
// remove which takes care of the second link
SLink * remove( SLink * oldEntry, int nth=0, NVListVirtualiser * v=0);
};

inline
NVList::NVList()
: LightList()
{
}

inline
NVList::NVList( NVLink * l )
: LightList(l)
{
}

inline
NVList::~NVList()
{
}

#endif /* NVList_h */