X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/773e2c1fe5fd1a315ffaaf79f2f2e4a9e975649a..216d0bd8869c4f52ead5256064512ac97e9fc824:/apt-pkg/cacheiterators.h diff --git a/apt-pkg/cacheiterators.h b/apt-pkg/cacheiterators.h index 1da5c6f02..b97a1a589 100644 --- a/apt-pkg/cacheiterators.h +++ b/apt-pkg/cacheiterators.h @@ -29,12 +29,14 @@ /*}}}*/ #ifndef PKGLIB_CACHEITERATORS_H #define PKGLIB_CACHEITERATORS_H +#include + +#include // abstract Iterator template /*{{{*/ /* This template provides the very basic iterator methods we - need to have for doing some walk-over-the-cache magic, */ -template class pkgCache::Iterator { - __attribute__ ((deprecated)) void _dummy(); // FIXME: Who on earth uses this method ??? - + need to have for doing some walk-over-the-cache magic */ +template class pkgCache::Iterator : + public std::iterator { protected: Str *S; pkgCache *Owner; @@ -64,17 +66,69 @@ template class pkgCache::Iterator { inline Str const *operator ->() const {return S;}; inline operator Str *() {return S == OwnerPointer() ? 0 : S;}; inline operator Str const *() const {return S == OwnerPointer() ? 0 : S;}; + inline Str &operator *() {return *S;}; inline Str const &operator *() const {return *S;}; - inline pkgCache *Cache() {return Owner;}; + inline pkgCache *Cache() const {return Owner;}; // Mixed stuff inline void operator =(const Itr &B) {S = B.S; Owner = B.Owner;}; inline bool IsGood() const { return S && Owner && ! end();}; inline unsigned long Index() const {return S - OwnerPointer();}; + void ReMap(void const * const oldMap, void const * const newMap) { + if (Owner == 0 || S == 0) + return; + S += (Str*)(newMap) - (Str*)(oldMap); + } + // Constructors - look out for the variable assigning inline Iterator() : S(0), Owner(0) {}; inline Iterator(pkgCache &Owner,Str *T = 0) : S(T), Owner(&Owner) {}; +}; + /*}}}*/ +// Group Iterator /*{{{*/ +/* Packages with the same name are collected in a Group so someone only + interest in package names can iterate easily over the names, so the + different architectures can be treated as of the "same" package + (apt internally treat them as totally different packages) */ +class pkgCache::GrpIterator: public Iterator { + long HashIndex; + + protected: + inline Group* OwnerPointer() const { + return (Owner != 0) ? Owner->GrpP : 0; + }; + + public: + // This constructor is the 'begin' constructor, never use it. + inline GrpIterator(pkgCache &Owner) : Iterator(Owner), HashIndex(-1) { + S = OwnerPointer(); + operator ++(0); + }; + + virtual void operator ++(int); + virtual void operator ++() {operator ++(0);}; + + inline const char *Name() const {return S->Name == 0?0:Owner->StrP + S->Name;}; + inline PkgIterator PackageList() const; + PkgIterator FindPkg(string Arch = "any") const; + /** \brief find the package with the "best" architecture + + The best architecture is either the "native" or the first + in the list of Architectures which is not an end-Pointer + + \param PreferNonVirtual tries to respond with a non-virtual package + and only if this fails returns the best virtual package */ + PkgIterator FindPreferredPkg(bool const &PreferNonVirtual = true) const; + PkgIterator NextPkg(PkgIterator const &Pkg) const; + + // Constructors + inline GrpIterator(pkgCache &Owner, Group *Trg) : Iterator(Owner, Trg), HashIndex(0) { + if (S == 0) + S = OwnerPointer(); + }; + inline GrpIterator() : Iterator(), HashIndex(0) {}; + }; /*}}}*/ // Package Iterator /*{{{*/ @@ -83,7 +137,7 @@ class pkgCache::PkgIterator: public Iterator { protected: inline Package* OwnerPointer() const { - return Owner->PkgP; + return (Owner != 0) ? Owner->PkgP : 0; }; public: @@ -103,6 +157,8 @@ class pkgCache::PkgIterator: public Iterator { inline const char *Section() const {return S->Section == 0?0:Owner->StrP + S->Section;}; inline bool Purge() const {return S->CurrentState == pkgCache::State::Purge || (S->CurrentVer == 0 && S->CurrentState == pkgCache::State::NotInstalled);}; + inline const char *Arch() const {return S->Arch == 0?0:Owner->StrP + S->Arch;}; + inline GrpIterator Group() const { return GrpIterator(*Owner, Owner->GrpP + S->Group);}; inline VerIterator VersionList() const; inline VerIterator CurrentVer() const; @@ -114,6 +170,7 @@ class pkgCache::PkgIterator: public Iterator { //Nice printable representation friend std::ostream& operator <<(std::ostream& out, PkgIterator i); + std::string FullName(bool const &Pretty = false) const; // Constructors inline PkgIterator(pkgCache &Owner,Package *Trg) : Iterator(Owner, Trg), HashIndex(0) { @@ -127,7 +184,7 @@ class pkgCache::PkgIterator: public Iterator { class pkgCache::VerIterator : public Iterator { protected: inline Version* OwnerPointer() const { - return Owner->VerP; + return (Owner != 0) ? Owner->VerP : 0; }; public: @@ -137,11 +194,22 @@ class pkgCache::VerIterator : public Iterator { // Comparison int CompareVer(const VerIterator &B) const; + /** \brief compares two version and returns if they are similar + + This method should be used to identify if two pseudo versions are + refering to the same "real" version */ + inline bool SimilarVer(const VerIterator &B) const { + return (B.end() == false && S->Hash == B->Hash && strcmp(VerStr(), B.VerStr()) == 0); + }; // Accessors inline const char *VerStr() const {return S->VerStr == 0?0:Owner->StrP + S->VerStr;}; inline const char *Section() const {return S->Section == 0?0:Owner->StrP + S->Section;}; - inline const char *Arch() const {return S->Arch == 0?0:Owner->StrP + S->Arch;}; + inline const char *Arch() const { + if (S->MultiArch == pkgCache::Version::All) + return "all"; + return S->ParentPkg == 0?0:Owner->StrP + ParentPkg()->Arch; + }; inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);}; inline DescIterator DescriptionList() const; @@ -150,8 +218,8 @@ class pkgCache::VerIterator : public Iterator { inline PrvIterator ProvidesList() const; inline VerFileIterator FileList() const; bool Downloadable() const; - inline const char *PriorityType() {return Owner->Priority(S->Priority);}; - string RelStr(); + inline const char *PriorityType() const {return Owner->Priority(S->Priority);}; + string RelStr() const; bool Automatic() const; VerFileIterator NewestFile() const; @@ -167,7 +235,7 @@ class pkgCache::VerIterator : public Iterator { class pkgCache::DescIterator : public Iterator { protected: inline Description* OwnerPointer() const { - return Owner->DescP; + return (Owner != 0) ? Owner->DescP : 0; }; public: @@ -196,7 +264,7 @@ class pkgCache::DepIterator : public Iterator { protected: inline Dependency* OwnerPointer() const { - return Owner->DepP; + return (Owner != 0) ? Owner->DepP : 0; }; public: @@ -207,17 +275,21 @@ class pkgCache::DepIterator : public Iterator { // Accessors inline const char *TargetVer() const {return S->Version == 0?0:Owner->StrP + S->Version;}; - inline PkgIterator TargetPkg() {return PkgIterator(*Owner,Owner->PkgP + S->Package);}; - inline PkgIterator SmartTargetPkg() {PkgIterator R(*Owner,0);SmartTargetPkg(R);return R;}; - inline VerIterator ParentVer() {return VerIterator(*Owner,Owner->VerP + S->ParentVer);}; - inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->ParentVer].ParentPkg);}; - inline bool Reverse() {return Type == DepRev;}; - bool IsCritical(); + inline PkgIterator TargetPkg() const {return PkgIterator(*Owner,Owner->PkgP + S->Package);}; + inline PkgIterator SmartTargetPkg() const {PkgIterator R(*Owner,0);SmartTargetPkg(R);return R;}; + inline VerIterator ParentVer() const {return VerIterator(*Owner,Owner->VerP + S->ParentVer);}; + inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->ParentVer].ParentPkg);}; + inline bool Reverse() const {return Type == DepRev;}; + bool IsCritical() const; + bool IsNegative() const; void GlobOr(DepIterator &Start,DepIterator &End); - Version **AllTargets(); - bool SmartTargetPkg(PkgIterator &Result); - inline const char *CompType() {return Owner->CompType(S->CompareOp);}; - inline const char *DepType() {return Owner->DepType(S->Type);}; + Version **AllTargets() const; + bool SmartTargetPkg(PkgIterator &Result) const; + inline const char *CompType() const {return Owner->CompType(S->CompareOp);}; + inline const char *DepType() const {return Owner->DepType(S->Type);}; + + //Nice printable representation + friend std::ostream& operator <<(std::ostream& out, DepIterator D); inline DepIterator(pkgCache &Owner, Dependency *Trg, Version* = 0) : Iterator(Owner, Trg), Type(DepVer) { @@ -238,7 +310,7 @@ class pkgCache::PrvIterator : public Iterator { protected: inline Provides* OwnerPointer() const { - return Owner->ProvideP; + return (Owner != 0) ? Owner->ProvideP : 0; }; public: @@ -250,9 +322,9 @@ class pkgCache::PrvIterator : public Iterator { // Accessors inline const char *Name() const {return Owner->StrP + Owner->PkgP[S->ParentPkg].Name;}; inline const char *ProvideVersion() const {return S->ProvideVersion == 0?0:Owner->StrP + S->ProvideVersion;}; - inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);}; - inline VerIterator OwnerVer() {return VerIterator(*Owner,Owner->VerP + S->Version);}; - inline PkgIterator OwnerPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->Version].ParentPkg);}; + inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);}; + inline VerIterator OwnerVer() const {return VerIterator(*Owner,Owner->VerP + S->Version);}; + inline PkgIterator OwnerPkg() const {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->Version].ParentPkg);}; inline PrvIterator() : Iterator(), Type(PrvVer) {}; @@ -272,7 +344,7 @@ class pkgCache::PrvIterator : public Iterator { class pkgCache::PkgFileIterator : public Iterator { protected: inline PackageFile* OwnerPointer() const { - return Owner->PkgFileP; + return (Owner != 0) ? Owner->PkgFileP : 0; }; public: @@ -297,14 +369,15 @@ class pkgCache::PkgFileIterator : public Iterator // Constructors inline PkgFileIterator() : Iterator() {}; - inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg = 0) : Iterator(Owner, Trg) {}; + inline PkgFileIterator(pkgCache &Owner) : Iterator(Owner, Owner.PkgFileP) {}; + inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg) : Iterator(Owner, Trg) {}; }; /*}}}*/ // Version File /*{{{*/ class pkgCache::VerFileIterator : public pkgCache::Iterator { protected: inline VerFile* OwnerPointer() const { - return Owner->VerFileP; + return (Owner != 0) ? Owner->VerFileP : 0; }; public: @@ -323,7 +396,7 @@ class pkgCache::VerFileIterator : public pkgCache::Iterator { protected: inline DescFile* OwnerPointer() const { - return Owner->DescFileP; + return (Owner != 0) ? Owner->DescFileP : 0; }; public: @@ -339,6 +412,8 @@ class pkgCache::DescFileIterator : public Iterator { }; /*}}}*/ // Inlined Begin functions cant be in the class because of order problems /*{{{*/ +inline pkgCache::PkgIterator pkgCache::GrpIterator::PackageList() const + {return PkgIterator(*Owner,Owner->PkgP + S->FirstPackage);}; inline pkgCache::VerIterator pkgCache::PkgIterator::VersionList() const {return VerIterator(*Owner,Owner->VerP + S->VersionList);}; inline pkgCache::VerIterator pkgCache::PkgIterator::CurrentVer() const