git.saurik.com Git - apt.git/blame_incremental

... / ...

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