ftparchive/contents.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: contents.h,v 1.2 2001/02/20 07:03:18 jgg Exp $
   4 /* ######################################################################
   5
   6    contents - Contents of archive things.
   7
   8    ##################################################################### */
   9                                                                         /*}}}*/
  10 #ifndef CONTENTS_H
  11 #define CONTENTS_H
  12
  13 #include <stdlib.h>
  14 #include <stdio.h>
  15 #include <apt-pkg/debfile.h>
  16 #include <apt-pkg/dirstream.h>
  17
  18 class GenContents
  19 {
  20    struct Node
  21    {
  22       // Binary Tree links
  23       Node *BTreeLeft;
  24       Node *BTreeRight;
  25       Node *DirDown;
  26       Node *Dups;
  27       const char *Path;
  28       const char *Package;
  29
  30       void *operator new(size_t Amount,GenContents *Owner);
  31       void operator delete(void *) {};
  32
  33       Node() : BTreeLeft(0), BTreeRight(0), DirDown(0), Dups(0),
  34                Path(0), Package(0) {};
  35    };
  36    friend struct Node;
  37
  38    struct BigBlock
  39    {
  40       void *Block;
  41       BigBlock *Next;
  42    };
  43
  44    Node Root;
  45
  46    // Big block allocation pools
  47    BigBlock *BlockList;
  48    char *StrPool;
  49    unsigned long StrLeft;
  50    Node *NodePool;
  51    unsigned long NodeLeft;
  52
  53    Node *Grab(Node *Top,const char *Name,const char *Package);
  54    void WriteSpace(FILE *Out,unsigned int Current,unsigned int Target);
  55    void DoPrint(FILE *Out,Node *Top, char *Buf);
  56
  57    public:
  58
  59    char *Mystrdup(const char *From);
  60    void Add(const char *Dir,const char *Package);
  61    void Print(FILE *Out);
  62
  63    GenContents() : BlockList(0), StrPool(0), StrLeft(0),
  64                    NodePool(0), NodeLeft(0) {};
  65    ~GenContents();
  66 };
  67
  68 class ContentsExtract : public pkgDirStream
  69 {
  70    public:
  71
  72    // The Data Block
  73    char *Data;
  74    unsigned long MaxSize;
  75    unsigned long CurSize;
  76    void AddData(const char *Text);
  77
  78    bool Read(debDebFile &Deb);
  79
  80    virtual bool DoItem(Item &Itm,int &Fd);
  81    void Reset() {CurSize = 0;};
  82    bool TakeContents(const void *Data,unsigned long Length);
  83    void Add(GenContents &Contents,string const &Package);
  84
  85    ContentsExtract() : Data(0), MaxSize(0), CurSize(0) {};
  86    virtual ~ContentsExtract() {delete [] Data;};
  87 };
  88
  89 #endif