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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,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,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(string S) {return WriteUniqString(S.c_str(),S.length());};
	67
	68	void DropProgress() {Progress = 0;};
	69	bool SelectFile(string File,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(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,string Package,
	103	string Version,unsigned int Op,
	104	unsigned int Type);
	105	bool NewProvides(pkgCache::VerIterator Ver,string Package,string Version);
	106
	107	public:
	108
	109	// These all operate against the current section
	110	virtual string Package() = 0;
	111	virtual string Version() = 0;
	112	virtual bool NewVersion(pkgCache::VerIterator Ver) = 0;
	113	virtual string Description() = 0;
	114	virtual string DescriptionLanguage() = 0;
	115	virtual MD5SumValue Description_md5() = 0;
	116	virtual unsigned short VersionHash() = 0;
	117	virtual bool UsePackage(pkgCache::PkgIterator Pkg,
	118	pkgCache::VerIterator Ver) = 0;
	119	virtual unsigned long Offset() = 0;
	120	virtual unsigned long Size() = 0;
	121
	122	virtual bool Step() = 0;
	123
	124	inline bool HasFileDeps() {return FoundFileDeps;};
	125	virtual bool CollectFileProvides(pkgCache &Cache,
	126	pkgCache::VerIterator Ver) {return true;};
	127
	128	ListParser() : FoundFileDeps(false) {};
	129	virtual ~ListParser() {};
	130	};
	131
	132	bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
	133	MMap **OutMap = 0,bool AllowMem = false);
	134	bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap);
	135
	136	#ifdef APT_COMPATIBILITY
	137	#if APT_COMPATIBILITY != 986
	138	#warning "Using APT_COMPATIBILITY"
	139	#endif
	140	MMap *pkgMakeStatusCacheMem(pkgSourceList &List,OpProgress &Progress)
	141	{
	142	MMap *Map = 0;
	143	if (pkgMakeStatusCache(List,Progress,&Map,true) == false)
	144	return 0;
	145	return Map;
	146	}
	147	#endif
	148
	149	#endif