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1// -*- mode: cpp; mode: fold -*-
2// Description /*{{{*/
3/* ######################################################################
4
5 Cache Iterators - Iterators for navigating the cache structure
6
7 The iterators all provides ++,==,!=,->,* and end for their type.
8 The end function can be used to tell if the list has been fully
9 traversed.
10
11 Unlike STL iterators these contain helper functions to access the data
12 that is being iterated over. This is because the data structures can't
13 be formed in a manner that is intuitive to use and also mmapable.
14
15 For each variable in the target structure that would need a translation
16 to be accessed correctly a translating function of the same name is
17 present in the iterator. If applicable the translating function will
18 return an iterator.
19
20 The DepIterator can iterate over two lists, a list of 'version depends'
21 or a list of 'package reverse depends'. The type is determined by the
22 structure passed to the constructor, which should be the structure
23 that has the depends pointer as a member. The provide iterator has the
24 same system.
25
26 This header is not user includable, please use apt-pkg/pkgcache.h
27
28 ##################################################################### */
29 /*}}}*/
30#ifndef PKGLIB_CACHEITERATORS_H
31#define PKGLIB_CACHEITERATORS_H
32#include<apt-pkg/pkgcache.h>
33#include<apt-pkg/macros.h>
34
35#include<iterator>
36#include <iosfwd>
37#include <string>
38#ifdef APT_PKG_EXPOSE_STRING_VIEW
39#include <apt-pkg/string_view.h>
40#endif
41
42#include<string.h>
43
44// abstract Iterator template /*{{{*/
45/* This template provides the very basic iterator methods we
46 need to have for doing some walk-over-the-cache magic */
47template<typename Str, typename Itr> class pkgCache::Iterator :
48 public std::iterator<std::forward_iterator_tag, Str> {
49 /** \brief Returns the Pointer for this struct in the owner
50 * The implementation of this method should be pretty short
51 * as it will only return the Pointer into the mmap stored
52 * in the owner but the name of this pointer is different for
53 * each structure and we want to abstract here at least for the
54 * basic methods from the actual structure.
55 * \return Pointer to the first structure of this type
56 */
57 Str* OwnerPointer() const { return static_cast<Itr const*>(this)->OwnerPointer(); }
58
59 protected:
60 Str *S;
61 pkgCache *Owner;
62
63 public:
64 // Iteration
65 inline bool end() const {return Owner == 0 || S == OwnerPointer();}
66
67 // Comparison
68 inline bool operator ==(const Itr &B) const {return S == B.S;}
69 inline bool operator !=(const Itr &B) const {return S != B.S;}
70
71 // Accessors
72 inline Str *operator ->() {return S;}
73 inline Str const *operator ->() const {return S;}
74 inline operator Str *() {return S == OwnerPointer() ? 0 : S;}
75 inline operator Str const *() const {return S == OwnerPointer() ? 0 : S;}
76 inline Str &operator *() {return *S;}
77 inline Str const &operator *() const {return *S;}
78 inline pkgCache *Cache() const {return Owner;}
79
80 // Mixed stuff
81 inline bool IsGood() const { return S && Owner && ! end();}
82 inline unsigned long Index() const {return S - OwnerPointer();}
83
84 void ReMap(void const * const oldMap, void const * const newMap) {
85 if (Owner == 0 || S == 0)
86 return;
87 S += (Str const * const)(newMap) - (Str const * const)(oldMap);
88 }
89
90 // Constructors - look out for the variable assigning
91 inline Iterator() : S(0), Owner(0) {}
92 inline Iterator(pkgCache &Owner,Str *T = 0) : S(T), Owner(&Owner) {}
93};
94 /*}}}*/
95// Group Iterator /*{{{*/
96/* Packages with the same name are collected in a Group so someone only
97 interest in package names can iterate easily over the names, so the
98 different architectures can be treated as of the "same" package
99 (apt internally treat them as totally different packages) */
100class pkgCache::GrpIterator: public Iterator<Group, GrpIterator> {
101 long HashIndex;
102
103 public:
104 inline Group* OwnerPointer() const {
105 return (Owner != 0) ? Owner->GrpP : 0;
106 }
107
108 // This constructor is the 'begin' constructor, never use it.
109 explicit inline GrpIterator(pkgCache &Owner) : Iterator<Group, GrpIterator>(Owner), HashIndex(-1) {
110 S = OwnerPointer();
111 operator++();
112 }
113
114 GrpIterator& operator++();
115 inline GrpIterator operator++(int) { GrpIterator const tmp(*this); operator++(); return tmp; }
116
117 inline const char *Name() const {return S->Name == 0?0:Owner->StrP + S->Name;}
118 inline PkgIterator PackageList() const;
119 PkgIterator FindPkg(std::string Arch = "any") const;
120#ifdef APT_PKG_EXPOSE_STRING_VIEW
121 APT_HIDDEN PkgIterator FindPkg(APT::StringView Arch = APT::StringView("any", 3)) const;
122 APT_HIDDEN PkgIterator FindPkg(const char *Arch) const;
123#endif
124 /** \brief find the package with the "best" architecture
125
126 The best architecture is either the "native" or the first
127 in the list of Architectures which is not an end-Pointer
128
129 \param PreferNonVirtual tries to respond with a non-virtual package
130 and only if this fails returns the best virtual package */
131 PkgIterator FindPreferredPkg(bool const &PreferNonVirtual = true) const;
132 PkgIterator NextPkg(PkgIterator const &Pkg) const;
133
134 // Constructors
135 inline GrpIterator(pkgCache &Owner, Group *Trg) : Iterator<Group, GrpIterator>(Owner, Trg), HashIndex(0) {
136 if (S == 0)
137 S = OwnerPointer();
138 }
139 inline GrpIterator() : Iterator<Group, GrpIterator>(), HashIndex(0) {}
140
141};
142 /*}}}*/
143// Package Iterator /*{{{*/
144class pkgCache::PkgIterator: public Iterator<Package, PkgIterator> {
145 long HashIndex;
146
147 public:
148 inline Package* OwnerPointer() const {
149 return (Owner != 0) ? Owner->PkgP : 0;
150 }
151
152 // This constructor is the 'begin' constructor, never use it.
153 explicit inline PkgIterator(pkgCache &Owner) : Iterator<Package, PkgIterator>(Owner), HashIndex(-1) {
154 S = OwnerPointer();
155 operator++();
156 }
157
158 PkgIterator& operator++();
159 inline PkgIterator operator++(int) { PkgIterator const tmp(*this); operator++(); return tmp; }
160
161 enum OkState {NeedsNothing,NeedsUnpack,NeedsConfigure};
162
163 // Accessors
164 inline const char *Name() const { return Group().Name(); }
165 // Versions have sections - and packages can have different versions with different sections
166 // so this interface is broken by design. Run as fast as you can to Version.Section().
167 APT_DEPRECATED_MSG("Use the .Section method of VerIterator instead") inline const char *Section() const;
168 inline bool Purge() const {return S->CurrentState == pkgCache::State::Purge ||
169 (S->CurrentVer == 0 && S->CurrentState == pkgCache::State::NotInstalled);}
170 inline const char *Arch() const {return S->Arch == 0?0:Owner->StrP + S->Arch;}
171 inline APT_PURE GrpIterator Group() const { return GrpIterator(*Owner, Owner->GrpP + S->Group);}
172
173 inline VerIterator VersionList() const APT_PURE;
174 inline VerIterator CurrentVer() const APT_PURE;
175 inline DepIterator RevDependsList() const APT_PURE;
176 inline PrvIterator ProvidesList() const APT_PURE;
177 OkState State() const APT_PURE;
178 APT_DEPRECATED_MSG("This method does not respect apt_preferences! Use pkgDepCache::GetCandidateVersion(Pkg)") const char *CandVersion() const APT_PURE;
179 const char *CurVersion() const APT_PURE;
180
181 //Nice printable representation
182 APT_DEPRECATED_MSG("Use APT::PrettyPkg instead") friend std::ostream& operator <<(std::ostream& out, PkgIterator i);
183 std::string FullName(bool const &Pretty = false) const;
184
185 // Constructors
186 inline PkgIterator(pkgCache &Owner,Package *Trg) : Iterator<Package, PkgIterator>(Owner, Trg), HashIndex(0) {
187 if (S == 0)
188 S = OwnerPointer();
189 }
190 inline PkgIterator() : Iterator<Package, PkgIterator>(), HashIndex(0) {}
191};
192 /*}}}*/
193// Version Iterator /*{{{*/
194class pkgCache::VerIterator : public Iterator<Version, VerIterator> {
195 public:
196 inline Version* OwnerPointer() const {
197 return (Owner != 0) ? Owner->VerP : 0;
198 }
199
200 // Iteration
201 inline VerIterator& operator++() {if (S != Owner->VerP) S = Owner->VerP + S->NextVer; return *this;}
202 inline VerIterator operator++(int) { VerIterator const tmp(*this); operator++(); return tmp; }
203
204 // Comparison
205 int CompareVer(const VerIterator &B) const;
206 /** \brief compares two version and returns if they are similar
207
208 This method should be used to identify if two pseudo versions are
209 referring to the same "real" version */
210 inline bool SimilarVer(const VerIterator &B) const {
211 return (B.end() == false && S->Hash == B->Hash && strcmp(VerStr(), B.VerStr()) == 0);
212 }
213
214 // Accessors
215 inline const char *VerStr() const {return S->VerStr == 0?0:Owner->StrP + S->VerStr;}
216 inline const char *Section() const {return S->Section == 0?0:Owner->StrP + S->Section;}
217 /** \brief source package name this version comes from
218 Always contains the name, even if it is the same as the binary name */
219 inline const char *SourcePkgName() const {return Owner->StrP + S->SourcePkgName;}
220 /** \brief source version this version comes from
221 Always contains the version string, even if it is the same as the binary version */
222 inline const char *SourceVerStr() const {return Owner->StrP + S->SourceVerStr;}
223 inline const char *Arch() const {
224 if ((S->MultiArch & pkgCache::Version::All) == pkgCache::Version::All)
225 return "all";
226 return S->ParentPkg == 0?0:Owner->StrP + ParentPkg()->Arch;
227 }
228 inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);}
229
230 inline DescIterator DescriptionList() const;
231 DescIterator TranslatedDescription() const;
232 inline DepIterator DependsList() const;
233 inline PrvIterator ProvidesList() const;
234 inline VerFileIterator FileList() const;
235 bool Downloadable() const;
236 inline const char *PriorityType() const {return Owner->Priority(S->Priority);}
237 const char *MultiArchType() const APT_PURE;
238 std::string RelStr() const;
239
240 bool Automatic() const;
241 VerFileIterator NewestFile() const;
242
243 inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Iterator<Version, VerIterator>(Owner, Trg) {
244 if (S == 0)
245 S = OwnerPointer();
246 }
247 inline VerIterator() : Iterator<Version, VerIterator>() {}
248};
249 /*}}}*/
250// Description Iterator /*{{{*/
251class pkgCache::DescIterator : public Iterator<Description, DescIterator> {
252 public:
253 inline Description* OwnerPointer() const {
254 return (Owner != 0) ? Owner->DescP : 0;
255 }
256
257 // Iteration
258 inline DescIterator& operator++() {if (S != Owner->DescP) S = Owner->DescP + S->NextDesc; return *this;}
259 inline DescIterator operator++(int) { DescIterator const tmp(*this); operator++(); return tmp; }
260
261 // Comparison
262 int CompareDesc(const DescIterator &B) const;
263
264 // Accessors
265 inline const char *LanguageCode() const {return Owner->StrP + S->language_code;}
266 inline const char *md5() const {return Owner->StrP + S->md5sum;}
267 inline DescFileIterator FileList() const;
268
269 inline DescIterator() : Iterator<Description, DescIterator>() {}
270 inline DescIterator(pkgCache &Owner,Description *Trg = 0) : Iterator<Description, DescIterator>(Owner, Trg) {
271 if (S == 0)
272 S = Owner.DescP;
273 }
274};
275 /*}}}*/
276// Dependency iterator /*{{{*/
277class pkgCache::DepIterator : public Iterator<Dependency, DepIterator> {
278 enum {DepVer, DepRev} Type;
279 DependencyData * S2;
280
281 public:
282 inline Dependency* OwnerPointer() const {
283 return (Owner != 0) ? Owner->DepP : 0;
284 }
285
286 // Iteration
287 DepIterator& operator++();
288 inline DepIterator operator++(int) { DepIterator const tmp(*this); operator++(); return tmp; }
289
290 // Accessors
291 inline const char *TargetVer() const {return S2->Version == 0?0:Owner->StrP + S2->Version;}
292 inline PkgIterator TargetPkg() const {return PkgIterator(*Owner,Owner->PkgP + S2->Package);}
293 inline PkgIterator SmartTargetPkg() const {PkgIterator R(*Owner,0);SmartTargetPkg(R);return R;}
294 inline VerIterator ParentVer() const {return VerIterator(*Owner,Owner->VerP + S->ParentVer);}
295 inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->ParentVer].ParentPkg);}
296 inline bool Reverse() const {return Type == DepRev;}
297 bool IsCritical() const APT_PURE;
298 bool IsNegative() const APT_PURE;
299 bool IsIgnorable(PrvIterator const &Prv) const APT_PURE;
300 bool IsIgnorable(PkgIterator const &Pkg) const APT_PURE;
301 /* MultiArch can be translated to SingleArch for an resolver and we did so,
302 by adding dependencies to help the resolver understand the problem, but
303 sometimes it is needed to identify these to ignore them… */
304 inline bool IsMultiArchImplicit() const APT_PURE {
305 return (S2->CompareOp & pkgCache::Dep::MultiArchImplicit) == pkgCache::Dep::MultiArchImplicit;
306 }
307 /* This covers additionally negative dependencies, which aren't arch-specific,
308 but change architecture nonetheless as a Conflicts: foo does applies for all archs */
309 bool IsImplicit() const APT_PURE;
310
311 bool IsSatisfied(VerIterator const &Ver) const APT_PURE;
312 bool IsSatisfied(PrvIterator const &Prv) const APT_PURE;
313 void GlobOr(DepIterator &Start,DepIterator &End);
314 Version **AllTargets() const;
315 bool SmartTargetPkg(PkgIterator &Result) const;
316 inline const char *CompType() const {return Owner->CompType(S2->CompareOp);}
317 inline const char *DepType() const {return Owner->DepType(S2->Type);}
318
319 // overrides because we are special
320 struct DependencyProxy
321 {
322 map_stringitem_t &Version;
323 map_pointer_t &Package;
324 map_id_t &ID;
325 unsigned char &Type;
326 unsigned char &CompareOp;
327 map_pointer_t &ParentVer;
328 map_pointer_t &DependencyData;
329 map_pointer_t &NextRevDepends;
330 map_pointer_t &NextDepends;
331 map_pointer_t &NextData;
332 DependencyProxy const * operator->() const { return this; }
333 DependencyProxy * operator->() { return this; }
334 };
335 inline DependencyProxy operator->() const {return (DependencyProxy) { S2->Version, S2->Package, S->ID, S2->Type, S2->CompareOp, S->ParentVer, S->DependencyData, S->NextRevDepends, S->NextDepends, S2->NextData };}
336 inline DependencyProxy operator->() {return (DependencyProxy) { S2->Version, S2->Package, S->ID, S2->Type, S2->CompareOp, S->ParentVer, S->DependencyData, S->NextRevDepends, S->NextDepends, S2->NextData };}
337 void ReMap(void const * const oldMap, void const * const newMap)
338 {
339 Iterator<Dependency, DepIterator>::ReMap(oldMap, newMap);
340 if (Owner == 0 || S == 0 || S2 == 0)
341 return;
342 S2 += (DependencyData const * const)(newMap) - (DependencyData const * const)(oldMap);
343 }
344
345 //Nice printable representation
346 APT_DEPRECATED_MSG("Use APT::PrettyDep instead") friend std::ostream& operator <<(std::ostream& out, DepIterator D);
347
348 inline DepIterator(pkgCache &Owner, Dependency *Trg, Version* = 0) :
349 Iterator<Dependency, DepIterator>(Owner, Trg), Type(DepVer), S2(Trg == 0 ? Owner.DepDataP : (Owner.DepDataP + Trg->DependencyData)) {
350 if (S == 0)
351 S = Owner.DepP;
352 }
353 inline DepIterator(pkgCache &Owner, Dependency *Trg, Package*) :
354 Iterator<Dependency, DepIterator>(Owner, Trg), Type(DepRev), S2(Trg == 0 ? Owner.DepDataP : (Owner.DepDataP + Trg->DependencyData)) {
355 if (S == 0)
356 S = Owner.DepP;
357 }
358 inline DepIterator() : Iterator<Dependency, DepIterator>(), Type(DepVer), S2(0) {}
359};
360 /*}}}*/
361// Provides iterator /*{{{*/
362class pkgCache::PrvIterator : public Iterator<Provides, PrvIterator> {
363 enum {PrvVer, PrvPkg} Type;
364
365 public:
366 inline Provides* OwnerPointer() const {
367 return (Owner != 0) ? Owner->ProvideP : 0;
368 }
369
370 // Iteration
371 inline PrvIterator& operator ++() {if (S != Owner->ProvideP) S = Owner->ProvideP +
372 (Type == PrvVer?S->NextPkgProv:S->NextProvides); return *this;}
373 inline PrvIterator operator++(int) { PrvIterator const tmp(*this); operator++(); return tmp; }
374
375 // Accessors
376 inline const char *Name() const {return ParentPkg().Name();}
377 inline const char *ProvideVersion() const {return S->ProvideVersion == 0?0:Owner->StrP + S->ProvideVersion;}
378 inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);}
379 inline VerIterator OwnerVer() const {return VerIterator(*Owner,Owner->VerP + S->Version);}
380 inline PkgIterator OwnerPkg() const {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->Version].ParentPkg);}
381
382 /* MultiArch can be translated to SingleArch for an resolver and we did so,
383 by adding provides to help the resolver understand the problem, but
384 sometimes it is needed to identify these to ignore them… */
385 bool IsMultiArchImplicit() const APT_PURE
386 { return (S->Flags & pkgCache::Flag::MultiArchImplicit) == pkgCache::Flag::MultiArchImplicit; }
387
388
389 inline PrvIterator() : Iterator<Provides, PrvIterator>(), Type(PrvVer) {}
390 inline PrvIterator(pkgCache &Owner, Provides *Trg, Version*) :
391 Iterator<Provides, PrvIterator>(Owner, Trg), Type(PrvVer) {
392 if (S == 0)
393 S = Owner.ProvideP;
394 }
395 inline PrvIterator(pkgCache &Owner, Provides *Trg, Package*) :
396 Iterator<Provides, PrvIterator>(Owner, Trg), Type(PrvPkg) {
397 if (S == 0)
398 S = Owner.ProvideP;
399 }
400};
401 /*}}}*/
402// Release file /*{{{*/
403class pkgCache::RlsFileIterator : public Iterator<ReleaseFile, RlsFileIterator> {
404 public:
405 inline ReleaseFile* OwnerPointer() const {
406 return (Owner != 0) ? Owner->RlsFileP : 0;
407 }
408
409 // Iteration
410 inline RlsFileIterator& operator++() {if (S != Owner->RlsFileP) S = Owner->RlsFileP + S->NextFile;return *this;}
411 inline RlsFileIterator operator++(int) { RlsFileIterator const tmp(*this); operator++(); return tmp; }
412
413 // Accessors
414 inline const char *FileName() const {return S->FileName == 0?0:Owner->StrP + S->FileName;}
415 inline const char *Archive() const {return S->Archive == 0?0:Owner->StrP + S->Archive;}
416 inline const char *Version() const {return S->Version == 0?0:Owner->StrP + S->Version;}
417 inline const char *Origin() const {return S->Origin == 0?0:Owner->StrP + S->Origin;}
418 inline const char *Codename() const {return S->Codename ==0?0:Owner->StrP + S->Codename;}
419 inline const char *Label() const {return S->Label == 0?0:Owner->StrP + S->Label;}
420 inline const char *Site() const {return S->Site == 0?0:Owner->StrP + S->Site;}
421 inline bool Flagged(pkgCache::Flag::ReleaseFileFlags const flag) const {return (S->Flags & flag) == flag; }
422
423 bool IsOk();
424 std::string RelStr();
425
426 // Constructors
427 inline RlsFileIterator() : Iterator<ReleaseFile, RlsFileIterator>() {}
428 explicit inline RlsFileIterator(pkgCache &Owner) : Iterator<ReleaseFile, RlsFileIterator>(Owner, Owner.RlsFileP) {}
429 inline RlsFileIterator(pkgCache &Owner,ReleaseFile *Trg) : Iterator<ReleaseFile, RlsFileIterator>(Owner, Trg) {}
430};
431 /*}}}*/
432// Package file /*{{{*/
433class pkgCache::PkgFileIterator : public Iterator<PackageFile, PkgFileIterator> {
434 public:
435 inline PackageFile* OwnerPointer() const {
436 return (Owner != 0) ? Owner->PkgFileP : 0;
437 }
438
439 // Iteration
440 inline PkgFileIterator& operator++() {if (S != Owner->PkgFileP) S = Owner->PkgFileP + S->NextFile; return *this;}
441 inline PkgFileIterator operator++(int) { PkgFileIterator const tmp(*this); operator++(); return tmp; }
442
443 // Accessors
444 inline const char *FileName() const {return S->FileName == 0?0:Owner->StrP + S->FileName;}
445 inline pkgCache::RlsFileIterator ReleaseFile() const {return RlsFileIterator(*Owner, Owner->RlsFileP + S->Release);}
446 inline const char *Archive() const {return S->Release == 0 ? Component() : ReleaseFile().Archive();}
447 inline const char *Version() const {return S->Release == 0 ? NULL : ReleaseFile().Version();}
448 inline const char *Origin() const {return S->Release == 0 ? NULL : ReleaseFile().Origin();}
449 inline const char *Codename() const {return S->Release == 0 ? NULL : ReleaseFile().Codename();}
450 inline const char *Label() const {return S->Release == 0 ? NULL : ReleaseFile().Label();}
451 inline const char *Site() const {return S->Release == 0 ? NULL : ReleaseFile().Site();}
452 inline bool Flagged(pkgCache::Flag::ReleaseFileFlags const flag) const {return S->Release== 0 ? false : ReleaseFile().Flagged(flag);}
453 inline bool Flagged(pkgCache::Flag::PkgFFlags const flag) const {return (S->Flags & flag) == flag;}
454 inline const char *Component() const {return S->Component == 0?0:Owner->StrP + S->Component;}
455 inline const char *Architecture() const {return S->Architecture == 0?0:Owner->StrP + S->Architecture;}
456 inline const char *IndexType() const {return S->IndexType == 0?0:Owner->StrP + S->IndexType;}
457
458 bool IsOk();
459 std::string RelStr();
460
461 // Constructors
462 inline PkgFileIterator() : Iterator<PackageFile, PkgFileIterator>() {}
463 explicit inline PkgFileIterator(pkgCache &Owner) : Iterator<PackageFile, PkgFileIterator>(Owner, Owner.PkgFileP) {}
464 inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg) : Iterator<PackageFile, PkgFileIterator>(Owner, Trg) {}
465};
466 /*}}}*/
467// Version File /*{{{*/
468class pkgCache::VerFileIterator : public pkgCache::Iterator<VerFile, VerFileIterator> {
469 public:
470 inline VerFile* OwnerPointer() const {
471 return (Owner != 0) ? Owner->VerFileP : 0;
472 }
473
474 // Iteration
475 inline VerFileIterator& operator++() {if (S != Owner->VerFileP) S = Owner->VerFileP + S->NextFile; return *this;}
476 inline VerFileIterator operator++(int) { VerFileIterator const tmp(*this); operator++(); return tmp; }
477
478 // Accessors
479 inline PkgFileIterator File() const {return PkgFileIterator(*Owner,S->File + Owner->PkgFileP);}
480
481 inline VerFileIterator() : Iterator<VerFile, VerFileIterator>() {}
482 inline VerFileIterator(pkgCache &Owner,VerFile *Trg) : Iterator<VerFile, VerFileIterator>(Owner, Trg) {}
483};
484 /*}}}*/
485// Description File /*{{{*/
486class pkgCache::DescFileIterator : public Iterator<DescFile, DescFileIterator> {
487 public:
488 inline DescFile* OwnerPointer() const {
489 return (Owner != 0) ? Owner->DescFileP : 0;
490 }
491
492 // Iteration
493 inline DescFileIterator& operator++() {if (S != Owner->DescFileP) S = Owner->DescFileP + S->NextFile; return *this;}
494 inline DescFileIterator operator++(int) { DescFileIterator const tmp(*this); operator++(); return tmp; }
495
496 // Accessors
497 inline PkgFileIterator File() const {return PkgFileIterator(*Owner,S->File + Owner->PkgFileP);}
498
499 inline DescFileIterator() : Iterator<DescFile, DescFileIterator>() {}
500 inline DescFileIterator(pkgCache &Owner,DescFile *Trg) : Iterator<DescFile, DescFileIterator>(Owner, Trg) {}
501};
502 /*}}}*/
503// Inlined Begin functions can't be in the class because of order problems /*{{{*/
504inline pkgCache::PkgIterator pkgCache::GrpIterator::PackageList() const
505 {return PkgIterator(*Owner,Owner->PkgP + S->FirstPackage);}
506inline pkgCache::VerIterator pkgCache::PkgIterator::VersionList() const
507 {return VerIterator(*Owner,Owner->VerP + S->VersionList);}
508inline pkgCache::VerIterator pkgCache::PkgIterator::CurrentVer() const
509 {return VerIterator(*Owner,Owner->VerP + S->CurrentVer);}
510inline pkgCache::DepIterator pkgCache::PkgIterator::RevDependsList() const
511 {return DepIterator(*Owner,Owner->DepP + S->RevDepends,S);}
512inline pkgCache::PrvIterator pkgCache::PkgIterator::ProvidesList() const
513 {return PrvIterator(*Owner,Owner->ProvideP + S->ProvidesList,S);}
514inline pkgCache::DescIterator pkgCache::VerIterator::DescriptionList() const
515 {return DescIterator(*Owner,Owner->DescP + S->DescriptionList);}
516inline pkgCache::PrvIterator pkgCache::VerIterator::ProvidesList() const
517 {return PrvIterator(*Owner,Owner->ProvideP + S->ProvidesList,S);}
518inline pkgCache::DepIterator pkgCache::VerIterator::DependsList() const
519 {return DepIterator(*Owner,Owner->DepP + S->DependsList,S);}
520inline pkgCache::VerFileIterator pkgCache::VerIterator::FileList() const
521 {return VerFileIterator(*Owner,Owner->VerFileP + S->FileList);}
522inline pkgCache::DescFileIterator pkgCache::DescIterator::FileList() const
523 {return DescFileIterator(*Owner,Owner->DescFileP + S->FileList);}
524APT_DEPRECATED_MSG("Use the .Section method of VerIterator instead") inline const char * pkgCache::PkgIterator::Section() const
525 {return S->VersionList == 0 ? 0 : VersionList().Section();}
526 /*}}}*/
527#endif