X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/fc04d4b48a0a464a9fc3570e674c17ad81c3134d..3d1be93dc4242df2b93de632715a8aa7dd34f96f:/apt-pkg/cacheiterators.h diff --git a/apt-pkg/cacheiterators.h b/apt-pkg/cacheiterators.h index 43cbe1377..886d84838 100644 --- a/apt-pkg/cacheiterators.h +++ b/apt-pkg/cacheiterators.h @@ -29,10 +29,15 @@ /*}}}*/ #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 { +template class pkgCache::Iterator : + public std::iterator { protected: Str *S; pkgCache *Owner; @@ -62,14 +67,21 @@ 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) {}; @@ -85,7 +97,7 @@ class pkgCache::GrpIterator: public Iterator { protected: inline Group* OwnerPointer() const { - return Owner->GrpP; + return (Owner != 0) ? Owner->GrpP : 0; }; public: @@ -100,8 +112,16 @@ class pkgCache::GrpIterator: public Iterator { inline const char *Name() const {return S->Name == 0?0:Owner->StrP + S->Name;}; inline PkgIterator PackageList() const; - PkgIterator FindPkg(string Arch = "any"); - PkgIterator NextPkg(PkgIterator const &Pkg); + PkgIterator FindPkg(std::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) { @@ -118,7 +138,7 @@ class pkgCache::PkgIterator: public Iterator { protected: inline Package* OwnerPointer() const { - return Owner->PkgP; + return (Owner != 0) ? Owner->PkgP : 0; }; public: @@ -151,6 +171,7 @@ 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) { @@ -164,7 +185,7 @@ 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: @@ -174,20 +195,22 @@ 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 { - if(S->MultiArch == pkgCache::Version::All) + if ((S->MultiArch & pkgCache::Version::All) == pkgCache::Version::All) return "all"; return S->ParentPkg == 0?0:Owner->StrP + ParentPkg()->Arch; }; - inline const char *Arch(bool const pseudo) const { - if(pseudo == false) - return Arch(); - return S->ParentPkg == 0?0:Owner->StrP + ParentPkg()->Arch; - }; inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);}; inline DescIterator DescriptionList() const; @@ -196,11 +219,11 @@ 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);}; + const char *MultiArchType() const; + std::string RelStr() const; bool Automatic() const; - bool Pseudo() const; VerFileIterator NewestFile() const; inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Iterator(Owner, Trg) { @@ -214,7 +237,7 @@ 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: @@ -243,7 +266,7 @@ class pkgCache::DepIterator : public Iterator { protected: inline Dependency* OwnerPointer() const { - return Owner->DepP; + return (Owner != 0) ? Owner->DepP : 0; }; public: @@ -254,17 +277,26 @@ 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; + bool IsIgnorable(PrvIterator const &Prv) const; + bool IsIgnorable(PkgIterator const &Pkg) const; + bool IsMultiArchImplicit() const; + bool IsSatisfied(VerIterator const &Ver) const; + bool IsSatisfied(PrvIterator const &Prv) 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) { @@ -285,7 +317,7 @@ class pkgCache::PrvIterator : public Iterator { protected: inline Provides* OwnerPointer() const { - return Owner->ProvideP; + return (Owner != 0) ? Owner->ProvideP : 0; }; public: @@ -297,12 +329,13 @@ 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) {}; + bool IsMultiArchImplicit() const; + inline PrvIterator() : Iterator(), Type(PrvVer) {}; inline PrvIterator(pkgCache &Owner, Provides *Trg, Version*) : Iterator(Owner, Trg), Type(PrvVer) { if (S == 0) @@ -319,7 +352,7 @@ 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: @@ -340,18 +373,19 @@ class pkgCache::PkgFileIterator : public Iterator inline const char *IndexType() const {return S->IndexType == 0?0:Owner->StrP + S->IndexType;}; bool IsOk(); - string RelStr(); + std::string RelStr(); // 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: @@ -370,7 +404,7 @@ class pkgCache::VerFileIterator : public pkgCache::Iterator { protected: inline DescFile* OwnerPointer() const { - return Owner->DescFileP; + return (Owner != 0) ? Owner->DescFileP : 0; }; public: