[apt.git] / apt-pkg / cacheiterators.h

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: cacheiterators.h,v 1.13 1999/02/23 06:46:24 jgg Exp $
/* ######################################################################
   
   Cache Iterators - Iterators for navigating the cache structure
   
   The iterators all provides ++,==,!=,->,* and end for their type.
   The end function can be used to tell if the list has been fully
   traversed.
   
   Unlike STL iterators these contain helper functions to access the data
   that is being iterated over. This is because the data structures can't
   be formed in a manner that is intuitive to use and also mmapable.
   
   For each variable in the target structure that would need a translation
   to be accessed correctly a translating function of the same name is
   present in the iterator. If applicable the translating function will
   return an iterator.

   The DepIterator can iterate over two lists, a list of 'version depends'
   or a list of 'package reverse depends'. The type is determined by the
   structure passed to the constructor, which should be the structure
   that has the depends pointer as a member. The provide iterator has the
   same system.
   
   This header is not user includable, please use apt-pkg/pkgcache.h
   
   ##################################################################### */
									/*}}}*/
// Header section: pkglib
#ifndef PKGLIB_CACHEITERATORS_H
#define PKGLIB_CACHEITERATORS_H

#ifdef __GNUG__
#pragma interface "apt-pkg/cacheiterators.h"
#endif 

// Package Iterator
class pkgCache::PkgIterator
{
   Package *Pkg;
   pkgCache *Owner;
   long HashIndex;

   public:

   enum OkState {NeedsNothing,NeedsUnpack,NeedsConfigure};
      
   // Iteration
   void operator ++(int);
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return Owner == 0 || Pkg == Owner->PkgP?true:false;};

   // Comparison
   inline bool operator ==(const PkgIterator &B) const {return Pkg == B.Pkg;};
   inline bool operator !=(const PkgIterator &B) const {return Pkg != B.Pkg;};
			   
   // Accessors
   inline Package *operator ->() {return Pkg;};
   inline Package const *operator ->() const {return Pkg;};
   inline Package const &operator *() const {return *Pkg;};
   inline operator Package *() {return Pkg == Owner->PkgP?0:Pkg;};
   inline operator Package const *() const {return Pkg == Owner->PkgP?0:Pkg;};
   
   inline const char *Name() const {return Pkg->Name == 0?0:Owner->StrP + Pkg->Name;};
   inline const char *Section() const {return Pkg->Section == 0?0:Owner->StrP + Pkg->Section;};
   inline const char *TargetDist() const {return Pkg->TargetDist == 0?0:Owner->StrP + Pkg->TargetDist;};
   inline VerIterator VersionList() const;
   inline VerIterator TargetVer() const;
   inline VerIterator CurrentVer() const;
   inline DepIterator RevDependsList() const;
   inline PrvIterator ProvidesList() const;
   inline unsigned long Index() const {return Pkg - Owner->PkgP;};
   OkState State() const;
   
   // Constructors
   inline PkgIterator(pkgCache &Owner) : Owner(&Owner), HashIndex(-1)
   {
      Pkg = Owner.PkgP;
      operator ++(0);
   };
   inline PkgIterator(pkgCache &Owner,Package *Trg) : Pkg(Trg), Owner(&Owner),
          HashIndex(0) 
   { 
      if (Pkg == 0)
	 Pkg = Owner.PkgP;
   };
   inline PkgIterator() : Pkg(0), Owner(0), HashIndex(0) {};
};

// Version Iterator
class pkgCache::VerIterator
{
   Version *Ver;
   pkgCache *Owner;
   
   void _dummy();
   
   public:

   // Iteration
   void operator ++(int) {if (Ver != Owner->VerP) Ver = Owner->VerP + Ver->NextVer;};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return Ver == Owner->VerP?true:false;};
   inline void operator =(const VerIterator &B) {Ver = B.Ver; Owner = B.Owner;};
   
   // Comparison
   inline bool operator ==(const VerIterator &B) const {return Ver == B.Ver;};
   inline bool operator !=(const VerIterator &B) const {return Ver != B.Ver;};
   int CompareVer(const VerIterator &B) const;
   
   // Accessors
   inline Version *operator ->() {return Ver;};
   inline Version const *operator ->() const {return Ver;};
   inline Version &operator *() {return *Ver;};
   inline Version const &operator *() const {return *Ver;};
   inline operator Version *() {return Ver == Owner->VerP?0:Ver;};
   inline operator Version const *() const {return Ver == Owner->VerP?0:Ver;};
   
   inline const char *VerStr() const {return Ver->VerStr == 0?0:Owner->StrP + Ver->VerStr;};
   inline const char *Section() const {return Ver->Section == 0?0:Owner->StrP + Ver->Section;};
   inline const char *Arch() const {return Ver->Arch == 0?0:Owner->StrP + Ver->Arch;};
   inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + Ver->ParentPkg);};
   inline DepIterator DependsList() const;
   inline PrvIterator ProvidesList() const;
   inline VerFileIterator FileList() const;
   inline unsigned long Index() const {return Ver - Owner->VerP;};
   bool Downloadable() const;
   const char *PriorityType();

   bool Automatic() const;
   VerFileIterator NewestFile() const;

   inline VerIterator() : Ver(0), Owner(0) {};   
   inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Ver(Trg), 
              Owner(&Owner) 
   { 
      if (Ver == 0)
	 Ver = Owner.VerP;
   };
};

// Dependency iterator
class pkgCache::DepIterator
{
   Dependency *Dep;
   enum {DepVer, DepRev} Type;
   pkgCache *Owner;
   
   void _dummy();
   
   public:

   // Iteration
   void operator ++(int) {if (Dep != Owner->DepP) Dep = Owner->DepP +
	(Type == DepVer?Dep->NextDepends:Dep->NextRevDepends);};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return Owner == 0 || Dep == Owner->DepP?true:false;};
   
   // Comparison
   inline bool operator ==(const DepIterator &B) const {return Dep == B.Dep;};
   inline bool operator !=(const DepIterator &B) const {return Dep != B.Dep;};

   // Accessors
   inline Dependency *operator ->() {return Dep;};
   inline Dependency const *operator ->() const {return Dep;};
   inline Dependency &operator *() {return *Dep;};
   inline Dependency const &operator *() const {return *Dep;};
   inline operator Dependency *() {return Dep == Owner->DepP?0:Dep;};
   inline operator Dependency const *() const {return Dep == Owner->DepP?0:Dep;};
   
   inline const char *TargetVer() const {return Dep->Version == 0?0:Owner->StrP + Dep->Version;};
   inline PkgIterator TargetPkg() {return PkgIterator(*Owner,Owner->PkgP + Dep->Package);};
   inline PkgIterator SmartTargetPkg() {PkgIterator R(*Owner);SmartTargetPkg(R);return R;};
   inline VerIterator ParentVer() {return VerIterator(*Owner,Owner->VerP + Dep->ParentVer);};
   inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Dep->ParentVer].ParentPkg);};
   inline bool Reverse() {return Type == DepRev;};
   inline unsigned long Index() const {return Dep - Owner->DepP;};
   bool IsCritical();
   void GlobOr(DepIterator &Start,DepIterator &End);
   Version **AllTargets();   
   bool SmartTargetPkg(PkgIterator &Result);
   const char *CompType();
   const char *DepType();
   
   inline DepIterator(pkgCache &Owner,Dependency *Trg,Version * = 0) :
          Dep(Trg), Type(DepVer), Owner(&Owner) 
   {
      if (Dep == 0)
	 Dep = Owner.DepP;
   };
   inline DepIterator(pkgCache &Owner,Dependency *Trg,Package *) :
          Dep(Trg), Type(DepRev), Owner(&Owner)
   {
      if (Dep == 0)
	 Dep = Owner.DepP;
   };
   inline DepIterator() : Dep(0), Type(DepVer), Owner(0) {};
};

// Provides iterator
class pkgCache::PrvIterator
{
   Provides *Prv;
   enum {PrvVer, PrvPkg} Type;
   pkgCache *Owner;
   
   void _dummy();
   
   public:

   // Iteration
   void operator ++(int) {if (Prv != Owner->ProvideP) Prv = Owner->ProvideP +
	(Type == PrvVer?Prv->NextPkgProv:Prv->NextProvides);};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return Prv == Owner->ProvideP?true:false;};
   
   // Comparison
   inline bool operator ==(const PrvIterator &B) const {return Prv == B.Prv;};
   inline bool operator !=(const PrvIterator &B) const {return Prv != B.Prv;};

   // Accessors
   inline Provides *operator ->() {return Prv;};
   inline Provides const *operator ->() const {return Prv;};
   inline Provides &operator *() {return *Prv;};
   inline Provides const &operator *() const {return *Prv;};
   inline operator Provides *() {return Prv == Owner->ProvideP?0:Prv;};
   inline operator Provides const *() const {return Prv == Owner->ProvideP?0:Prv;};

   inline const char *Name() const {return Owner->StrP + Owner->PkgP[Prv->ParentPkg].Name;};
   inline const char *ProvideVersion() const {return Prv->ProvideVersion == 0?0:Owner->StrP + Prv->ProvideVersion;};
   inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Prv->ParentPkg);};
   inline VerIterator OwnerVer() {return VerIterator(*Owner,Owner->VerP + Prv->Version);};
   inline PkgIterator OwnerPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Prv->Version].ParentPkg);};
   inline unsigned long Index() const {return Prv - Owner->ProvideP;};

   inline PrvIterator(pkgCache &Owner,Provides *Trg,Version *) :
          Prv(Trg), Type(PrvVer), Owner(&Owner) 
   {
      if (Prv == 0)
	 Prv = Owner.ProvideP;
   };
   inline PrvIterator(pkgCache &Owner,Provides *Trg,Package *) : 
          Prv(Trg), Type(PrvPkg), Owner(&Owner)
   {
      if (Prv == 0)
	 Prv = Owner.ProvideP;
   };
};

// Package file 
class pkgCache::PkgFileIterator
{
   pkgCache *Owner;
   PackageFile *File;

   public:

   // Iteration
   void operator ++(int) {if (File!= Owner->PkgFileP) File = Owner->PkgFileP + File->NextFile;};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return File == Owner->PkgFileP?true:false;};

   // Comparison
   inline bool operator ==(const PkgFileIterator &B) const {return File == B.File;};
   inline bool operator !=(const PkgFileIterator &B) const {return File != B.File;};
			   
   // Accessors
   inline PackageFile *operator ->() {return File;};
   inline PackageFile const *operator ->() const {return File;};
   inline PackageFile const &operator *() const {return *File;};
   inline operator PackageFile *() {return File == Owner->PkgFileP?0:File;};
   inline operator PackageFile const *() const {return File == Owner->PkgFileP?0:File;};

   inline const char *FileName() const {return File->FileName == 0?0:Owner->StrP + File->FileName;};
   inline const char *Archive() const {return File->Archive == 0?0:Owner->StrP + File->Archive;};
   inline const char *Component() const {return File->Component == 0?0:Owner->StrP + File->Component;};
   inline const char *Version() const {return File->Version == 0?0:Owner->StrP + File->Version;};
   inline const char *Origin() const {return File->Origin == 0?0:Owner->StrP + File->Origin;};
   inline const char *Label() const {return File->Origin == 0?0:Owner->StrP + File->Label;};
   inline const char *Architecture() const {return File->Origin == 0?0:Owner->StrP + File->Architecture;};

   inline unsigned long Index() const {return File - Owner->PkgFileP;};

   bool IsOk();
   
   // Constructors
   inline PkgFileIterator(pkgCache &Owner) : Owner(&Owner), File(Owner.PkgFileP + Owner.Head().FileList) {};
   inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg) : Owner(&Owner), File(Trg) {};
};

// Version File 
class pkgCache::VerFileIterator
{
   pkgCache *Owner;
   VerFile *FileP;

   public:

   // Iteration
   void operator ++(int) {if (FileP != Owner->VerFileP) FileP = Owner->VerFileP + FileP->NextFile;};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return FileP == Owner->VerFileP?true:false;};

   // Comparison
   inline bool operator ==(const VerFileIterator &B) const {return FileP == B.FileP;};
   inline bool operator !=(const VerFileIterator &B) const {return FileP != B.FileP;};
			   
   // Accessors
   inline VerFile *operator ->() {return FileP;};
   inline VerFile const *operator ->() const {return FileP;};
   inline VerFile const &operator *() const {return *FileP;};
   inline operator VerFile *() {return FileP == Owner->VerFileP?0:FileP;};
   inline operator VerFile const *() const {return FileP == Owner->VerFileP?0:FileP;};
  
   inline PkgFileIterator File() const {return PkgFileIterator(*Owner,FileP->File + Owner->PkgFileP);};
   inline unsigned long Index() const {return FileP - Owner->VerFileP;};
      
   inline VerFileIterator(pkgCache &Owner,VerFile *Trg) : Owner(&Owner), FileP(Trg) {};
};

// Inlined Begin functions cant be in the class because of order problems
inline pkgCache::VerIterator pkgCache::PkgIterator::VersionList() const
       {return VerIterator(*Owner,Owner->VerP + Pkg->VersionList);};
inline pkgCache::VerIterator pkgCache::PkgIterator::CurrentVer() const
       {return VerIterator(*Owner,Owner->VerP + Pkg->CurrentVer);};
inline pkgCache::VerIterator pkgCache::PkgIterator::TargetVer() const
       {return VerIterator(*Owner,Owner->VerP + Pkg->TargetVer);};
inline pkgCache::DepIterator pkgCache::PkgIterator::RevDependsList() const
       {return DepIterator(*Owner,Owner->DepP + Pkg->RevDepends,Pkg);};
inline pkgCache::PrvIterator pkgCache::PkgIterator::ProvidesList() const
       {return PrvIterator(*Owner,Owner->ProvideP + Pkg->ProvidesList,Pkg);};
inline pkgCache::PrvIterator pkgCache::VerIterator::ProvidesList() const
       {return PrvIterator(*Owner,Owner->ProvideP + Ver->ProvidesList,Ver);};
inline pkgCache::DepIterator pkgCache::VerIterator::DependsList() const
       {return DepIterator(*Owner,Owner->DepP + Ver->DependsList,Ver);};
inline pkgCache::VerFileIterator pkgCache::VerIterator::FileList() const
       {return VerFileIterator(*Owner,Owner->VerFileP + Ver->FileList);};

#endif
Commit	Line	Data
578bfd0a AL	1	// -- mode: cpp; mode: fold --
578bfd0a AL	2	// Description /{{{/
f9eec0e7	3	// $Id: cacheiterators.h,v 1.13 1999/02/23 06:46:24 jgg Exp $
578bfd0a AL	4	/* ######################################################################
	5
	6	Cache Iterators - Iterators for navigating the cache structure
	7
	8	The iterators all provides ++,==,!=,->,* and end for their type.
	9	The end function can be used to tell if the list has been fully
	10	traversed.
	11
	12	Unlike STL iterators these contain helper functions to access the data
	13	that is being iterated over. This is because the data structures can't
	14	be formed in a manner that is intuitive to use and also mmapable.
	15
	16	For each variable in the target structure that would need a translation
	17	to be accessed correctly a translating function of the same name is
	18	present in the iterator. If applicable the translating function will
	19	return an iterator.
	20
	21	The DepIterator can iterate over two lists, a list of 'version depends'
	22	or a list of 'package reverse depends'. The type is determined by the
	23	structure passed to the constructor, which should be the structure
6c139d6e AL	24	that has the depends pointer as a member. The provide iterator has the
6c139d6e AL	25	same system.
578bfd0a	26
094a497d	27	This header is not user includable, please use apt-pkg/pkgcache.h
578bfd0a AL	28
	29	##################################################################### */
	30	/}}}/
	31	// Header section: pkglib
	32	#ifndef PKGLIB_CACHEITERATORS_H
	33	#define PKGLIB_CACHEITERATORS_H
	34
6c139d6e	35	#ifdef __GNUG__
094a497d	36	#pragma interface "apt-pkg/cacheiterators.h"
6c139d6e AL	37	#endif
6c139d6e AL	38
578bfd0a AL	39	// Package Iterator
	40	class pkgCache::PkgIterator
	41	{
	42	Package *Pkg;
	43	pkgCache *Owner;
	44	long HashIndex;
	45
	46	public:
	47
	48	enum OkState {NeedsNothing,NeedsUnpack,NeedsConfigure};
	49
	50	// Iteration
	51	void operator ++(int);
	52	inline void operator ++() {operator ++(0);};
	53	inline bool end() const {return Owner == 0 \|\| Pkg == Owner->PkgP?true:false;};
	54
	55	// Comparison
	56	inline bool operator ==(const PkgIterator &B) const {return Pkg == B.Pkg;};
	57	inline bool operator !=(const PkgIterator &B) const {return Pkg != B.Pkg;};
	58
	59	// Accessors
	60	inline Package *operator ->() {return Pkg;};
	61	inline Package const *operator ->() const {return Pkg;};
	62	inline Package const &operator () const {return Pkg;};
	63	inline operator Package *() {return Pkg == Owner->PkgP?0:Pkg;};
	64	inline operator Package const *() const {return Pkg == Owner->PkgP?0:Pkg;};
6c139d6e	65
578bfd0a AL	66	inline const char *Name() const {return Pkg->Name == 0?0:Owner->StrP + Pkg->Name;};
	67	inline const char *Section() const {return Pkg->Section == 0?0:Owner->StrP + Pkg->Section;};
	68	inline const char *TargetDist() const {return Pkg->TargetDist == 0?0:Owner->StrP + Pkg->TargetDist;};
	69	inline VerIterator VersionList() const;
	70	inline VerIterator TargetVer() const;
	71	inline VerIterator CurrentVer() const;
	72	inline DepIterator RevDependsList() const;
	73	inline PrvIterator ProvidesList() const;
f55a958f	74	inline unsigned long Index() const {return Pkg - Owner->PkgP;};
578bfd0a AL	75	OkState State() const;
	76
	77	// Constructors
	78	inline PkgIterator(pkgCache &Owner) : Owner(&Owner), HashIndex(-1)
	79	{
	80	Pkg = Owner.PkgP;
	81	operator ++(0);
	82	};
	83	inline PkgIterator(pkgCache &Owner,Package *Trg) : Pkg(Trg), Owner(&Owner),
	84	HashIndex(0)
	85	{
	86	if (Pkg == 0)
	87	Pkg = Owner.PkgP;
	88	};
	89	inline PkgIterator() : Pkg(0), Owner(0), HashIndex(0) {};
	90	};
	91
	92	// Version Iterator
	93	class pkgCache::VerIterator
	94	{
	95	Version *Ver;
f9eec0e7	96	pkgCache *Owner;
578bfd0a AL	97
	98	void _dummy();
	99
	100	public:
	101
	102	// Iteration
f9eec0e7	103	void operator ++(int) {if (Ver != Owner->VerP) Ver = Owner->VerP + Ver->NextVer;};
578bfd0a	104	inline void operator ++() {operator ++(0);};
f9eec0e7 AL	105	inline bool end() const {return Ver == Owner->VerP?true:false;};
f9eec0e7 AL	106	inline void operator =(const VerIterator &B) {Ver = B.Ver; Owner = B.Owner;};
578bfd0a AL	107
	108	// Comparison
	109	inline bool operator ==(const VerIterator &B) const {return Ver == B.Ver;};
	110	inline bool operator !=(const VerIterator &B) const {return Ver != B.Ver;};
	111	int CompareVer(const VerIterator &B) const;
	112
	113	// Accessors
	114	inline Version *operator ->() {return Ver;};
	115	inline Version const *operator ->() const {return Ver;};
	116	inline Version &operator () {return Ver;};
	117	inline Version const &operator () const {return Ver;};
f9eec0e7 AL	118	inline operator Version *() {return Ver == Owner->VerP?0:Ver;};
f9eec0e7 AL	119	inline operator Version const *() const {return Ver == Owner->VerP?0:Ver;};
c9807169	120
f9eec0e7 AL	121	inline const char *VerStr() const {return Ver->VerStr == 0?0:Owner->StrP + Ver->VerStr;};
	122	inline const char *Section() const {return Ver->Section == 0?0:Owner->StrP + Ver->Section;};
	123	inline const char *Arch() const {return Ver->Arch == 0?0:Owner->StrP + Ver->Arch;};
	124	inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + Ver->ParentPkg);};
578bfd0a AL	125	inline DepIterator DependsList() const;
578bfd0a AL	126	inline PrvIterator ProvidesList() const;
dcb79bae	127	inline VerFileIterator FileList() const;
f9eec0e7	128	inline unsigned long Index() const {return Ver - Owner->VerP;};
b518cca6	129	bool Downloadable() const;
c9807169	130	const char *PriorityType();
3c124dde AL	131
	132	bool Automatic() const;
	133	VerFileIterator NewestFile() const;
f9eec0e7 AL	134
	135	inline VerIterator() : Ver(0), Owner(0) {};
	136	inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Ver(Trg),
	137	Owner(&Owner)
578bfd0a AL	138	{
	139	if (Ver == 0)
	140	Ver = Owner.VerP;
	141	};
	142	};
	143
	144	// Dependency iterator
	145	class pkgCache::DepIterator
	146	{
	147	Dependency *Dep;
	148	enum {DepVer, DepRev} Type;
	149	pkgCache *Owner;
	150
	151	void _dummy();
	152
	153	public:
	154
	155	// Iteration
	156	void operator ++(int) {if (Dep != Owner->DepP) Dep = Owner->DepP +
	157	(Type == DepVer?Dep->NextDepends:Dep->NextRevDepends);};
	158	inline void operator ++() {operator ++(0);};
	159	inline bool end() const {return Owner == 0 \|\| Dep == Owner->DepP?true:false;};
	160
	161	// Comparison
	162	inline bool operator ==(const DepIterator &B) const {return Dep == B.Dep;};
	163	inline bool operator !=(const DepIterator &B) const {return Dep != B.Dep;};
	164
	165	// Accessors
	166	inline Dependency *operator ->() {return Dep;};
	167	inline Dependency const *operator ->() const {return Dep;};
	168	inline Dependency &operator () {return Dep;};
	169	inline Dependency const &operator () const {return Dep;};
	170	inline operator Dependency *() {return Dep == Owner->DepP?0:Dep;};
	171	inline operator Dependency const *() const {return Dep == Owner->DepP?0:Dep;};
6c139d6e	172
578bfd0a AL	173	inline const char *TargetVer() const {return Dep->Version == 0?0:Owner->StrP + Dep->Version;};
578bfd0a AL	174	inline PkgIterator TargetPkg() {return PkgIterator(*Owner,Owner->PkgP + Dep->Package);};
578bfd0a AL	175	inline PkgIterator SmartTargetPkg() {PkgIterator R(*Owner);SmartTargetPkg(R);return R;};
	176	inline VerIterator ParentVer() {return VerIterator(*Owner,Owner->VerP + Dep->ParentVer);};
	177	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Dep->ParentVer].ParentPkg);};
578bfd0a	178	inline bool Reverse() {return Type == DepRev;};
f55a958f	179	inline unsigned long Index() const {return Dep - Owner->DepP;};
6c139d6e	180	bool IsCritical();
43d017d6	181	void GlobOr(DepIterator &Start,DepIterator &End);
6c139d6e AL	182	Version **AllTargets();
6c139d6e AL	183	bool SmartTargetPkg(PkgIterator &Result);
0a8e3465	184	const char *CompType();
43d017d6	185	const char *DepType();
0a8e3465	186
578bfd0a AL	187	inline DepIterator(pkgCache &Owner,Dependency Trg,Version = 0) :
	188	Dep(Trg), Type(DepVer), Owner(&Owner)
	189	{
	190	if (Dep == 0)
	191	Dep = Owner.DepP;
	192	};
	193	inline DepIterator(pkgCache &Owner,Dependency Trg,Package ) :
	194	Dep(Trg), Type(DepRev), Owner(&Owner)
	195	{
	196	if (Dep == 0)
	197	Dep = Owner.DepP;
	198	};
	199	inline DepIterator() : Dep(0), Type(DepVer), Owner(0) {};
	200	};
	201
	202	// Provides iterator
	203	class pkgCache::PrvIterator
	204	{
	205	Provides *Prv;
	206	enum {PrvVer, PrvPkg} Type;
	207	pkgCache *Owner;
	208
	209	void _dummy();
	210
	211	public:
	212
	213	// Iteration
	214	void operator ++(int) {if (Prv != Owner->ProvideP) Prv = Owner->ProvideP +
	215	(Type == PrvVer?Prv->NextPkgProv:Prv->NextProvides);};
	216	inline void operator ++() {operator ++(0);};
	217	inline bool end() const {return Prv == Owner->ProvideP?true:false;};
	218
	219	// Comparison
	220	inline bool operator ==(const PrvIterator &B) const {return Prv == B.Prv;};
	221	inline bool operator !=(const PrvIterator &B) const {return Prv != B.Prv;};
	222
	223	// Accessors
	224	inline Provides *operator ->() {return Prv;};
	225	inline Provides const *operator ->() const {return Prv;};
	226	inline Provides &operator () {return Prv;};
	227	inline Provides const &operator () const {return Prv;};
	228	inline operator Provides *() {return Prv == Owner->ProvideP?0:Prv;};
	229	inline operator Provides const *() const {return Prv == Owner->ProvideP?0:Prv;};
6c139d6e	230
578bfd0a AL	231	inline const char *Name() const {return Owner->StrP + Owner->PkgP[Prv->ParentPkg].Name;};
	232	inline const char *ProvideVersion() const {return Prv->ProvideVersion == 0?0:Owner->StrP + Prv->ProvideVersion;};
	233	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Prv->ParentPkg);};
	234	inline VerIterator OwnerVer() {return VerIterator(*Owner,Owner->VerP + Prv->Version);};
	235	inline PkgIterator OwnerPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Prv->Version].ParentPkg);};
f55a958f	236	inline unsigned long Index() const {return Prv - Owner->ProvideP;};
578bfd0a AL	237
	238	inline PrvIterator(pkgCache &Owner,Provides Trg,Version ) :
	239	Prv(Trg), Type(PrvVer), Owner(&Owner)
	240	{
	241	if (Prv == 0)
	242	Prv = Owner.ProvideP;
	243	};
	244	inline PrvIterator(pkgCache &Owner,Provides Trg,Package ) :
	245	Prv(Trg), Type(PrvPkg), Owner(&Owner)
	246	{
	247	if (Prv == 0)
	248	Prv = Owner.ProvideP;
	249	};
	250	};
	251
	252	// Package file
	253	class pkgCache::PkgFileIterator
	254	{
	255	pkgCache *Owner;
	256	PackageFile *File;
	257
	258	public:
	259
	260	// Iteration
	261	void operator ++(int) {if (File!= Owner->PkgFileP) File = Owner->PkgFileP + File->NextFile;};
	262	inline void operator ++() {operator ++(0);};
	263	inline bool end() const {return File == Owner->PkgFileP?true:false;};
	264
	265	// Comparison
	266	inline bool operator ==(const PkgFileIterator &B) const {return File == B.File;};
	267	inline bool operator !=(const PkgFileIterator &B) const {return File != B.File;};
	268
	269	// Accessors
	270	inline PackageFile *operator ->() {return File;};
	271	inline PackageFile const *operator ->() const {return File;};
	272	inline PackageFile const &operator () const {return File;};
	273	inline operator PackageFile *() {return File == Owner->PkgFileP?0:File;};
	274	inline operator PackageFile const *() const {return File == Owner->PkgFileP?0:File;};
	275
	276	inline const char *FileName() const {return File->FileName == 0?0:Owner->StrP + File->FileName;};
b0b4efb9 AL	277	inline const char *Archive() const {return File->Archive == 0?0:Owner->StrP + File->Archive;};
b0b4efb9 AL	278	inline const char *Component() const {return File->Component == 0?0:Owner->StrP + File->Component;};
578bfd0a	279	inline const char *Version() const {return File->Version == 0?0:Owner->StrP + File->Version;};
b0b4efb9 AL	280	inline const char *Origin() const {return File->Origin == 0?0:Owner->StrP + File->Origin;};
	281	inline const char *Label() const {return File->Origin == 0?0:Owner->StrP + File->Label;};
	282	inline const char *Architecture() const {return File->Origin == 0?0:Owner->StrP + File->Architecture;};
	283
f55a958f	284	inline unsigned long Index() const {return File - Owner->PkgFileP;};
578bfd0a AL	285
	286	bool IsOk();
	287
	288	// Constructors
	289	inline PkgFileIterator(pkgCache &Owner) : Owner(&Owner), File(Owner.PkgFileP + Owner.Head().FileList) {};
	290	inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg) : Owner(&Owner), File(Trg) {};
	291	};
	292
dcb79bae AL	293	// Version File
	294	class pkgCache::VerFileIterator
	295	{
	296	pkgCache *Owner;
	297	VerFile *FileP;
	298
	299	public:
	300
	301	// Iteration
	302	void operator ++(int) {if (FileP != Owner->VerFileP) FileP = Owner->VerFileP + FileP->NextFile;};
	303	inline void operator ++() {operator ++(0);};
	304	inline bool end() const {return FileP == Owner->VerFileP?true:false;};
	305
	306	// Comparison
	307	inline bool operator ==(const VerFileIterator &B) const {return FileP == B.FileP;};
	308	inline bool operator !=(const VerFileIterator &B) const {return FileP != B.FileP;};
	309
	310	// Accessors
	311	inline VerFile *operator ->() {return FileP;};
	312	inline VerFile const *operator ->() const {return FileP;};
	313	inline VerFile const &operator () const {return FileP;};
	314	inline operator VerFile *() {return FileP == Owner->VerFileP?0:FileP;};
	315	inline operator VerFile const *() const {return FileP == Owner->VerFileP?0:FileP;};
	316
	317	inline PkgFileIterator File() const {return PkgFileIterator(*Owner,FileP->File + Owner->PkgFileP);};
	318	inline unsigned long Index() const {return FileP - Owner->VerFileP;};
b518cca6	319
dcb79bae AL	320	inline VerFileIterator(pkgCache &Owner,VerFile *Trg) : Owner(&Owner), FileP(Trg) {};
	321	};
	322
578bfd0a AL	323	// Inlined Begin functions cant be in the class because of order problems
	324	inline pkgCache::VerIterator pkgCache::PkgIterator::VersionList() const
	325	{return VerIterator(*Owner,Owner->VerP + Pkg->VersionList);};
	326	inline pkgCache::VerIterator pkgCache::PkgIterator::CurrentVer() const
	327	{return VerIterator(*Owner,Owner->VerP + Pkg->CurrentVer);};
	328	inline pkgCache::VerIterator pkgCache::PkgIterator::TargetVer() const
	329	{return VerIterator(*Owner,Owner->VerP + Pkg->TargetVer);};
	330	inline pkgCache::DepIterator pkgCache::PkgIterator::RevDependsList() const
	331	{return DepIterator(*Owner,Owner->DepP + Pkg->RevDepends,Pkg);};
	332	inline pkgCache::PrvIterator pkgCache::PkgIterator::ProvidesList() const
	333	{return PrvIterator(*Owner,Owner->ProvideP + Pkg->ProvidesList,Pkg);};
	334	inline pkgCache::PrvIterator pkgCache::VerIterator::ProvidesList() const
f9eec0e7	335	{return PrvIterator(*Owner,Owner->ProvideP + Ver->ProvidesList,Ver);};
578bfd0a	336	inline pkgCache::DepIterator pkgCache::VerIterator::DependsList() const
f9eec0e7	337	{return DepIterator(*Owner,Owner->DepP + Ver->DependsList,Ver);};
dcb79bae	338	inline pkgCache::VerFileIterator pkgCache::VerIterator::FileList() const
f9eec0e7	339	{return VerFileIterator(*Owner,Owner->VerFileP + Ver->FileList);};
578bfd0a AL	340
578bfd0a AL	341	#endif