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