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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 NewPackage(pkgCache::PkgIterator &Pkg,const string &PkgName);
	55	bool NewPackage(pkgCache::PkgIterator &Pkg,const srkString &PkgName);
	56	bool NewFileVer(pkgCache::VerIterator &Ver,ListParser &List);
	57	bool NewFileDesc(pkgCache::DescIterator &Desc,ListParser &List);
	58	unsigned long NewVersion(pkgCache::VerIterator &Ver,const string &VerStr,unsigned long Next);
	59	unsigned long NewVersion(pkgCache::VerIterator &Ver,const srkString &VerStr,unsigned long Next);
	60	map_ptrloc NewDescription(pkgCache::DescIterator &Desc,const string &Lang,const MD5SumValue &md5sum,map_ptrloc Next);
	61
	62	public:
	63
	64	unsigned long WriteUniqString(const char *S,unsigned int Size);
	65	inline unsigned long WriteUniqString(const string &S) {return WriteUniqString(S.c_str(),S.length());};
	66
	67	void DropProgress() {Progress = 0;};
	68	bool SelectFile(const string &File,const string &Site,pkgIndexFile const &Index,
	69	unsigned long Flags = 0);
	70	bool MergeList(ListParser &List,pkgCache::VerIterator *Ver = 0);
	71	inline pkgCache &GetCache() {return Cache;};
	72	inline pkgCache::PkgFileIterator GetCurFile()
	73	{return pkgCache::PkgFileIterator(Cache,CurrentFile);};
	74
	75	bool HasFileDeps() {return FoundFileDeps;};
	76	bool MergeFileProvides(ListParser &List);
	77
	78	pkgCacheGenerator(DynamicMMap Map,OpProgress Progress);
	79	~pkgCacheGenerator();
	80	};
	81	/}}}/
	82	// This is the abstract package list parser class. /{{{/
	83	class pkgCacheGenerator::ListParser
	84	{
	85	pkgCacheGenerator *Owner;
	86	friend class pkgCacheGenerator;
	87
	88	// Some cache items
	89	pkgCache::VerIterator OldDepVer;
	90	map_ptrloc *OldDepLast;
	91
	92	// Flag file dependencies
	93	bool FoundFileDeps;
	94
	95	protected:
	96
	97	inline unsigned long WriteUniqString(string S) {return Owner->WriteUniqString(S);};
	98	inline unsigned long WriteUniqString(const char *S,unsigned int Size) {return Owner->WriteUniqString(S,Size);};
	99	inline unsigned long WriteString(const string &S) {return Owner->Map.WriteString(S);};
	100	inline unsigned long WriteString(const char *S,unsigned int Size) {return Owner->Map.WriteString(S,Size);};
	101	inline unsigned long WriteString(const srkString &S) {return Owner->Map.WriteString(S.Start,S.Size);};
	102	bool NewDepends(pkgCache::VerIterator Ver,const string &Package,
	103	const string &Version,unsigned int Op,
	104	unsigned int Type);
	105	bool NewDepends(pkgCache::VerIterator Ver,const srkString &Package,
	106	const srkString &Version,unsigned int Op,
	107	unsigned int Type);
	108	bool NewProvides(pkgCache::VerIterator Ver,const string &Package,
	109	const string &Version);
	110	bool NewProvides(pkgCache::VerIterator Ver,const srkString &Package,
	111	const srkString &Version);
	112	bool NewTag(pkgCache::PkgIterator Pkg,const char *NameStart,unsigned int NameSize);
	113
	114	public:
	115
	116	// These all operate against the current section
	117	virtual string Package() = 0;
	118	virtual string Version() = 0;
	119	virtual bool NewVersion(pkgCache::VerIterator Ver) = 0;
	120	virtual string Description() = 0;
	121	virtual string DescriptionLanguage() = 0;
	122	virtual MD5SumValue Description_md5() = 0;
	123	virtual unsigned short VersionHash() = 0;
	124	virtual bool UsePackage(pkgCache::PkgIterator Pkg,
	125	pkgCache::VerIterator Ver) = 0;
	126	virtual unsigned long Offset() = 0;
	127	virtual unsigned long Size() = 0;
	128
	129	virtual bool Step() = 0;
	130
	131	inline bool HasFileDeps() {return FoundFileDeps;};
	132	virtual bool CollectFileProvides(pkgCache &Cache,
	133	pkgCache::VerIterator Ver) {return true;};
	134
	135	ListParser() : FoundFileDeps(false) {};
	136	virtual ~ListParser() {};
	137	};
	138	/}}}/
	139	bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
	140	MMap **OutMap = 0,bool AllowMem = false);
	141	bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap);
	142
	143	#ifdef APT_COMPATIBILITY
	144	#if APT_COMPATIBILITY != 986
	145	#warning "Using APT_COMPATIBILITY"
	146	#endif
	147	MMap *pkgMakeStatusCacheMem(pkgSourceList &List,OpProgress &Progress)
	148	{
	149	MMap *Map = 0;
	150	if (pkgMakeStatusCache(List,Progress,&Map,true) == false)
	151	return 0;
	152	return Map;
	153	}
	154	#endif
	155
	156	#endif