| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: pkgcachegen.h,v 1.19 2002/07/08 03:13:30 jgg Exp $ |
| 4 | /* ###################################################################### |
| 5 | |
| 6 | Package Cache Generator - Generator for the cache structure. |
| 7 | |
| 8 | This builds the cache structure from the abstract package list parser. |
| 9 | Each archive source has it's own list parser that is instantiated by |
| 10 | the caller to provide data for the generator. |
| 11 | |
| 12 | Parts of the cache are created by this generator class while other |
| 13 | parts are created by the list parser. The list parser is responsible |
| 14 | for creating version, depends and provides structures, and some of |
| 15 | their contents |
| 16 | |
| 17 | ##################################################################### */ |
| 18 | /*}}}*/ |
| 19 | #ifndef PKGLIB_PKGCACHEGEN_H |
| 20 | #define PKGLIB_PKGCACHEGEN_H |
| 21 | |
| 22 | #ifdef __GNUG__ |
| 23 | #pragma interface "apt-pkg/pkgcachegen.h" |
| 24 | #endif |
| 25 | |
| 26 | #include <apt-pkg/pkgcache.h> |
| 27 | |
| 28 | class pkgSourceList; |
| 29 | class OpProgress; |
| 30 | class MMap; |
| 31 | class pkgIndexFile; |
| 32 | |
| 33 | class pkgCacheGenerator |
| 34 | { |
| 35 | private: |
| 36 | |
| 37 | pkgCache::StringItem *UniqHash[26]; |
| 38 | |
| 39 | public: |
| 40 | |
| 41 | class ListParser; |
| 42 | friend class ListParser; |
| 43 | |
| 44 | protected: |
| 45 | |
| 46 | DynamicMMap ⤅ |
| 47 | pkgCache Cache; |
| 48 | OpProgress *Progress; |
| 49 | |
| 50 | string PkgFileName; |
| 51 | pkgCache::PackageFile *CurrentFile; |
| 52 | |
| 53 | // Flag file dependencies |
| 54 | bool FoundFileDeps; |
| 55 | |
| 56 | bool NewPackage(pkgCache::PkgIterator &Pkg,const string &Pkg); |
| 57 | bool NewFileVer(pkgCache::VerIterator &Ver,ListParser &List); |
| 58 | unsigned long NewVersion(pkgCache::VerIterator &Ver,const string &VerStr,unsigned long Next); |
| 59 | |
| 60 | public: |
| 61 | |
| 62 | unsigned long WriteUniqString(const char *S,unsigned int Size); |
| 63 | inline unsigned long WriteUniqString(const string &S) {return WriteUniqString(S.c_str(),S.length());}; |
| 64 | |
| 65 | void DropProgress() {Progress = 0;}; |
| 66 | bool SelectFile(const string &File,const string &Site,pkgIndexFile const &Index, |
| 67 | unsigned long Flags = 0); |
| 68 | bool MergeList(ListParser &List,pkgCache::VerIterator *Ver = 0); |
| 69 | inline pkgCache &GetCache() {return Cache;}; |
| 70 | inline pkgCache::PkgFileIterator GetCurFile() |
| 71 | {return pkgCache::PkgFileIterator(Cache,CurrentFile);}; |
| 72 | |
| 73 | bool HasFileDeps() {return FoundFileDeps;}; |
| 74 | bool MergeFileProvides(ListParser &List); |
| 75 | |
| 76 | pkgCacheGenerator(DynamicMMap *Map,OpProgress *Progress); |
| 77 | ~pkgCacheGenerator(); |
| 78 | }; |
| 79 | |
| 80 | // This is the abstract package list parser class. |
| 81 | class pkgCacheGenerator::ListParser |
| 82 | { |
| 83 | pkgCacheGenerator *Owner; |
| 84 | friend class pkgCacheGenerator; |
| 85 | |
| 86 | // Some cache items |
| 87 | pkgCache::VerIterator OldDepVer; |
| 88 | map_ptrloc *OldDepLast; |
| 89 | |
| 90 | // Flag file dependencies |
| 91 | bool FoundFileDeps; |
| 92 | |
| 93 | protected: |
| 94 | |
| 95 | inline unsigned long WriteUniqString(string S) {return Owner->WriteUniqString(S);}; |
| 96 | inline unsigned long WriteUniqString(const char *S,unsigned int Size) {return Owner->WriteUniqString(S,Size);}; |
| 97 | inline unsigned long WriteString(const string &S) {return Owner->Map.WriteString(S);}; |
| 98 | inline unsigned long WriteString(const char *S,unsigned int Size) {return Owner->Map.WriteString(S,Size);}; |
| 99 | bool NewDepends(pkgCache::VerIterator Ver,const string &Package, |
| 100 | const string &Version,unsigned int Op, |
| 101 | unsigned int Type); |
| 102 | bool NewProvides(pkgCache::VerIterator Ver,const string &Package, |
| 103 | const string &Version); |
| 104 | |
| 105 | public: |
| 106 | |
| 107 | // These all operate against the current section |
| 108 | virtual string Package() = 0; |
| 109 | virtual string Version() = 0; |
| 110 | virtual bool NewVersion(pkgCache::VerIterator Ver) = 0; |
| 111 | virtual unsigned short VersionHash() = 0; |
| 112 | virtual bool UsePackage(pkgCache::PkgIterator Pkg, |
| 113 | pkgCache::VerIterator Ver) = 0; |
| 114 | virtual unsigned long Offset() = 0; |
| 115 | virtual unsigned long Size() = 0; |
| 116 | |
| 117 | virtual bool Step() = 0; |
| 118 | |
| 119 | inline bool HasFileDeps() {return FoundFileDeps;}; |
| 120 | virtual bool CollectFileProvides(pkgCache &Cache, |
| 121 | pkgCache::VerIterator Ver) {return true;}; |
| 122 | |
| 123 | ListParser() : FoundFileDeps(false) {}; |
| 124 | virtual ~ListParser() {}; |
| 125 | }; |
| 126 | |
| 127 | bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, |
| 128 | MMap **OutMap = 0,bool AllowMem = false); |
| 129 | bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap); |
| 130 | |
| 131 | #ifdef APT_COMPATIBILITY |
| 132 | #if APT_COMPATIBILITY != 986 |
| 133 | #warning "Using APT_COMPATIBILITY" |
| 134 | #endif |
| 135 | MMap *pkgMakeStatusCacheMem(pkgSourceList &List,OpProgress &Progress) |
| 136 | { |
| 137 | MMap *Map = 0; |
| 138 | if (pkgMakeStatusCache(List,Progress,&Map,true) == false) |
| 139 | return 0; |
| 140 | return Map; |
| 141 | } |
| 142 | #endif |
| 143 | |
| 144 | #endif |