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