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Commit	Line	Data
	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
	23	#include <apt-pkg/pkgcache.h>
	24	#include <apt-pkg/md5.h>
	25
	26	class pkgSourceList;
	27	class OpProgress;
	28	class MMap;
	29	class pkgIndexFile;
	30
	31	class pkgCacheGenerator /{{{/
	32	{
	33	private:
	34
	35	pkgCache::StringItem *UniqHash[26];
	36
	37	public:
	38
	39	class ListParser;
	40	friend class ListParser;
	41
	42	protected:
	43
	44	DynamicMMap &Map;
	45	pkgCache Cache;
	46	OpProgress *Progress;
	47
	48	string PkgFileName;
	49	pkgCache::PackageFile *CurrentFile;
	50
	51	// Flag file dependencies
	52	bool FoundFileDeps;
	53
	54	bool NewGroup(pkgCache::GrpIterator &Grp,const string &Name);
	55	bool NewPackage(pkgCache::PkgIterator &Pkg,const string &Name, const string &Arch);
	56	bool NewFileVer(pkgCache::VerIterator &Ver,ListParser &List);
	57	bool NewFileDesc(pkgCache::DescIterator &Desc,ListParser &List);
	58	bool NewDepends(pkgCache::PkgIterator &Pkg, pkgCache::VerIterator &Ver,
	59	string const &Version, unsigned int const &Op,
	60	unsigned int const &Type, map_ptrloc *OldDepLast);
	61	unsigned long NewVersion(pkgCache::VerIterator &Ver,const string &VerStr,unsigned long Next);
	62	map_ptrloc NewDescription(pkgCache::DescIterator &Desc,const string &Lang,const MD5SumValue &md5sum,map_ptrloc Next);
	63
	64	public:
	65
	66	unsigned long WriteUniqString(const char *S,unsigned int Size);
	67	inline unsigned long WriteUniqString(const string &S) {return WriteUniqString(S.c_str(),S.length());};
	68
	69	void DropProgress() {Progress = 0;};
	70	bool SelectFile(const string &File,const string &Site,pkgIndexFile const &Index,
	71	unsigned long Flags = 0);
	72	bool MergeList(ListParser &List,pkgCache::VerIterator *Ver = 0);
	73	inline pkgCache &GetCache() {return Cache;};
	74	inline pkgCache::PkgFileIterator GetCurFile()
	75	{return pkgCache::PkgFileIterator(Cache,CurrentFile);};
	76
	77	bool HasFileDeps() {return FoundFileDeps;};
	78	bool MergeFileProvides(ListParser &List);
	79	bool FinishCache(OpProgress &Progress);
	80
	81	pkgCacheGenerator(DynamicMMap Map,OpProgress Progress);
	82	~pkgCacheGenerator();
	83	};
	84	/}}}/
	85	// This is the abstract package list parser class. /{{{/
	86	class pkgCacheGenerator::ListParser
	87	{
	88	pkgCacheGenerator *Owner;
	89	friend class pkgCacheGenerator;
	90
	91	// Some cache items
	92	pkgCache::VerIterator OldDepVer;
	93	map_ptrloc *OldDepLast;
	94
	95	// Flag file dependencies
	96	bool FoundFileDeps;
	97
	98	protected:
	99
	100	inline unsigned long WriteUniqString(string S) {return Owner->WriteUniqString(S);};
	101	inline unsigned long WriteUniqString(const char *S,unsigned int Size) {return Owner->WriteUniqString(S,Size);};
	102	inline unsigned long WriteString(const string &S) {return Owner->Map.WriteString(S);};
	103	inline unsigned long WriteString(const char *S,unsigned int Size) {return Owner->Map.WriteString(S,Size);};
	104	bool NewDepends(pkgCache::VerIterator Ver,const string &Package, const string &Arch,
	105	const string &Version,unsigned int Op,
	106	unsigned int Type);
	107	bool NewProvides(pkgCache::VerIterator Ver,const string &PkgName,
	108	const string &PkgArch, const string &Version);
	109
	110	public:
	111
	112	// These all operate against the current section
	113	virtual string Package() = 0;
	114	virtual string Architecture() = 0;
	115	virtual bool ArchitectureAll() = 0;
	116	virtual string Version() = 0;
	117	virtual bool NewVersion(pkgCache::VerIterator Ver) = 0;
	118	virtual string Description() = 0;
	119	virtual string DescriptionLanguage() = 0;
	120	virtual MD5SumValue Description_md5() = 0;
	121	virtual unsigned short VersionHash() = 0;
	122	virtual bool UsePackage(pkgCache::PkgIterator Pkg,
	123	pkgCache::VerIterator Ver) = 0;
	124	virtual unsigned long Offset() = 0;
	125	virtual unsigned long Size() = 0;
	126
	127	virtual bool Step() = 0;
	128
	129	inline bool HasFileDeps() {return FoundFileDeps;};
	130	virtual bool CollectFileProvides(pkgCache &Cache,
	131	pkgCache::VerIterator Ver) {return true;};
	132
	133	ListParser() : FoundFileDeps(false) {};
	134	virtual ~ListParser() {};
	135	};
	136	/}}}/
	137	bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
	138	MMap **OutMap = 0,bool AllowMem = false);
	139	bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap);
	140
	141	#ifdef APT_COMPATIBILITY
	142	#if APT_COMPATIBILITY != 986
	143	#warning "Using APT_COMPATIBILITY"
	144	#endif
	145	MMap *pkgMakeStatusCacheMem(pkgSourceList &List,OpProgress &Progress)
	146	{
	147	MMap *Map = 0;
	148	if (pkgMakeStatusCache(List,Progress,&Map,true) == false)
	149	return 0;
	150	return Map;
	151	}
	152	#endif
	153
	154	#endif