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 <apt-pkg/dirstream.h>
  14
  15 #include <stddef.h>
  16 #include <stdio.h>
  17 #include <string>
  18
  19 class debDebFile;
  20
  21 class GenContents
  22 {
  23    struct Node
  24    {
  25       // Binary Tree links
  26       Node *BTreeLeft;
  27       Node *BTreeRight;
  28       Node *DirDown;
  29       Node *Dups;
  30       const char *Path;
  31       const char *Package;
  32
  33       void *operator new(size_t Amount,GenContents *Owner);
  34       void operator delete(void *) {};
  35
  36       Node() : BTreeLeft(0), BTreeRight(0), DirDown(0), Dups(0),
  37                Path(0), Package(0) {};
  38    };
  39    friend struct Node;
  40
  41    struct BigBlock
  42    {
  43       void *Block;
  44       BigBlock *Next;
  45    };
  46
  47    Node Root;
  48
  49    // Big block allocation pools
  50    BigBlock *BlockList;
  51    char *StrPool;
  52    unsigned long StrLeft;
  53    Node *NodePool;
  54    unsigned long NodeLeft;
  55
  56    Node *Grab(Node *Top,const char *Name,const char *Package);
  57    void WriteSpace(FILE *Out,unsigned int Current,unsigned int Target);
  58    void DoPrint(FILE *Out,Node *Top, char *Buf);
  59
  60    public:
  61
  62    char *Mystrdup(const char *From);
  63    void Add(const char *Dir,const char *Package);
  64    void Print(FILE *Out);
  65
  66    GenContents() : BlockList(0), StrPool(0), StrLeft(0),
  67                    NodePool(0), NodeLeft(0) {};
  68    ~GenContents();
  69 };
  70
  71 class ContentsExtract : public pkgDirStream
  72 {
  73    public:
  74
  75    // The Data Block
  76    char *Data;
  77    unsigned long long MaxSize;
  78    unsigned long long CurSize;
  79    void AddData(const char *Text);
  80
  81    bool Read(debDebFile &Deb);
  82
  83    virtual bool DoItem(Item &Itm,int &Fd);
  84    void Reset() {CurSize = 0;};
  85    bool TakeContents(const void *Data,unsigned long long Length);
  86    void Add(GenContents &Contents,std::string const &Package);
  87
  88    ContentsExtract() : Data(0), MaxSize(0), CurSize(0) {};
  89    virtual ~ContentsExtract() {delete [] Data;};
  90 };
  91
  92 #endif