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