mirror of https://github.com/CGAL/cgal
120 lines
2.9 KiB
C++
120 lines
2.9 KiB
C++
// ======================================================================
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//
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// Copyright (c) 1998 The CGAL Consortium
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//
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// This software and related documentation is part of an INTERNAL release
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// of the Computational Geometry Algorithms Library (CGAL). It is not
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// intended for general use.
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//
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// ----------------------------------------------------------------------
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//
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// release :
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// release_date : 2000, August 11
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//
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// file : include/CGAL/ExternalMemoryStructures/IO_tree_traits.h
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// package : ExternalMemoryStructures (0.631)
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// maintainer : Philipp Kramer <kramer@inf.ethz.ch>
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// chapter : $CGAL_Chapter: Basic / External Data Structures $
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// source :
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// revision : $Revision$
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// revision_date : $Date$
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// author(s) : Gabriele Neyer<neyer@inf.ethz.ch>
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//
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// coordinator : ETH Zurich (Peter Widmayer <widmayer@inf.ethz.ch>)
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//
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// Implementation of the IO_tree_traits.
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// ======================================================================
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#ifndef __IO_tree_traits_H__
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#define __IO_tree_traits_H__
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#include <CGAL/basic.h>
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#include <cstdio>
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#include <fstream>
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#include <unistd.h>
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CGAL_BEGIN_NAMESPACE
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//template <class InOut, int Mincap, int Maxcap>
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template <class InOut>
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class IO_tree_traits {
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public:
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typedef ptrdiff_t difference_type;
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InOut *IO;
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bool get(long num, char **x){
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return IO->get(num,x);
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}
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void open( int pagesize, char* name,
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int m = (std::fstream::binary|std::fstream::in|std::fstream::out)){
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IO=new InOut(pagesize,name,m);
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}
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void close(){
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IO->close();
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}
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difference_type get_pos() {
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return IO->get_pos();
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}
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bool insert(difference_type pos, char **x) {
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return IO->insert(pos, x);
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}
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difference_type number_of_elements(){
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return IO->number_of_elements();
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}
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bool update(difference_type pos, char** x){
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return IO->update(pos, x);
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}
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bool erase(difference_type pos){
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return IO->erase(pos);
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}
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bool deleted(difference_type pos){
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return IO->deleted(pos);
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}
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};
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//template <class InOut, int Mincap, int Maxcap>
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template <class InOut>
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class IO_internal_traits {
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public:
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typedef ptrdiff_t difference_type;
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InOut *IO;
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bool get(long num, char **x){
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return IO->get(num,x);
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}
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void open(int pagesize, char* name,
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int m = (std::fstream::in | std::fstream::out|std::fstream::binary))
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{
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IO=new InOut(pagesize);
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}
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void open( int pagesize){
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IO=new InOut(pagesize);
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}
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void close(){
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IO->close();
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}
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bool insert(difference_type pos, char **x) {
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return IO->insert(pos, x);
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}
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difference_type get_pos() {
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return IO->get_pos();
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}
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difference_type number_of_elements(){
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return IO->number_of_elements();
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}
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bool update(difference_type pos, char** x){
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return IO->update(pos, x);
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}
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bool erase(difference_type pos){
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return IO->erase(pos);
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}
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bool deleted(difference_type pos){
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return IO->deleted(pos);
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}
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};
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CGAL_END_NAMESPACE
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#endif
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