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- // -*- mode: cpp; mode: fold -*-
- // Description /*{{{*/
- // $Id: pkgcachegen.h,v 1.15 1999/05/23 22:55:54 jgg Exp $
- /* ######################################################################
-
- Package Cache Generator - Generator for the cache structure.
-
- This builds the cache structure from the abstract package list parser.
- Each archive source has it's own list parser that is instantiated by
- the caller to provide data for the generator.
-
- Parts of the cache are created by this generator class while other
- parts are created by the list parser. The list parser is responsible
- for creating version, depends and provides structures, and some of
- their contents
-
- ##################################################################### */
- /*}}}*/
- // Header section: pkglib
- #ifndef PKGLIB_PKGCACHEGEN_H
- #define PKGLIB_PKGCACHEGEN_H
-
- #ifdef __GNUG__
- #pragma interface "apt-pkg/pkgcachegen.h"
- #endif
-
- #include <apt-pkg/pkgcache.h>
-
- class pkgSourceList;
- class OpProgress;
- class MMap;
-
- class pkgCacheGenerator
- {
- private:
-
- pkgCache::StringItem *UniqHash[26];
-
- public:
-
- class ListParser;
- friend ListParser;
-
- protected:
-
- DynamicMMap ⤅
- pkgCache Cache;
- OpProgress &Progress;
-
- string PkgFileName;
- pkgCache::PackageFile *CurrentFile;
-
- bool NewPackage(pkgCache::PkgIterator &Pkg,string Pkg);
- bool NewFileVer(pkgCache::VerIterator &Ver,ListParser &List);
- unsigned long NewVersion(pkgCache::VerIterator &Ver,string VerStr,unsigned long Next);
-
- unsigned long WriteUniqString(const char *S,unsigned int Size);
- inline unsigned long WriteUniqString(string S) {return WriteUniqString(S.c_str(),S.length());};
-
- public:
-
- bool SelectFile(string File,unsigned long Flags = 0);
- bool MergeList(ListParser &List);
- inline pkgCache &GetCache() {return Cache;};
- inline pkgCache::PkgFileIterator GetCurFile()
- {return pkgCache::PkgFileIterator(Cache,CurrentFile);};
-
- pkgCacheGenerator(DynamicMMap &Map,OpProgress &Progress);
- ~pkgCacheGenerator();
- };
-
- bool pkgSrcCacheCheck(pkgSourceList &List);
- bool pkgPkgCacheCheck(string CacheFile);
- bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress);
- MMap *pkgMakeStatusCacheMem(pkgSourceList &List,OpProgress &Progress);
-
- // This is the abstract package list parser class.
- class pkgCacheGenerator::ListParser
- {
- pkgCacheGenerator *Owner;
- friend pkgCacheGenerator;
-
- // Some cache items
- pkgCache::VerIterator OldDepVer;
- __apt_ptrloc *OldDepLast;
-
- protected:
-
- inline unsigned long WriteUniqString(string S) {return Owner->WriteUniqString(S);};
- inline unsigned long WriteUniqString(const char *S,unsigned int Size) {return Owner->WriteUniqString(S,Size);};
- inline unsigned long WriteString(string S) {return Owner->Map.WriteString(S);};
- inline unsigned long WriteString(const char *S,unsigned int Size) {return Owner->Map.WriteString(S,Size);};
- bool NewDepends(pkgCache::VerIterator Ver,string Package,
- string Version,unsigned int Op,
- unsigned int Type);
- bool NewProvides(pkgCache::VerIterator Ver,string Package,string Version);
-
- public:
-
- // These all operate against the current section
- virtual string Package() = 0;
- virtual string Version() = 0;
- virtual bool NewVersion(pkgCache::VerIterator Ver) = 0;
- virtual unsigned short VersionHash() = 0;
- virtual bool UsePackage(pkgCache::PkgIterator Pkg,
- pkgCache::VerIterator Ver) = 0;
- virtual unsigned long Offset() = 0;
- virtual unsigned long Size() = 0;
-
- virtual bool Step() = 0;
-
- virtual ~ListParser() {};
- };
-
- #endif
-