/*}}}*/
#ifndef PKGLIB_CACHEITERATORS_H
#define PKGLIB_CACHEITERATORS_H
+#include<iterator>
+
+#include<string.h>
// abstract Iterator template /*{{{*/
/* This template provides the very basic iterator methods we
need to have for doing some walk-over-the-cache magic */
-template<typename Str, typename Itr> class pkgCache::Iterator {
+template<typename Str, typename Itr> class pkgCache::Iterator :
+ public std::iterator<std::forward_iterator_tag, Str> {
protected:
Str *S;
pkgCache *Owner;
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) {};
protected:
inline Group* OwnerPointer() const {
- return Owner->GrpP;
+ return (Owner != 0) ? Owner->GrpP : 0;
};
public:
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(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<Group, GrpIterator>(Owner, Trg), HashIndex(0) {
protected:
inline Package* OwnerPointer() const {
- return Owner->PkgP;
+ return (Owner != 0) ? Owner->PkgP : 0;
};
public:
class pkgCache::VerIterator : public Iterator<Version, VerIterator> {
protected:
inline Version* OwnerPointer() const {
- return Owner->VerP;
+ return (Owner != 0) ? Owner->VerP : 0;
};
public:
// 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)
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;
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;
- bool Pseudo() const;
VerFileIterator NewestFile() const;
inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Iterator<Version, VerIterator>(Owner, Trg) {
class pkgCache::DescIterator : public Iterator<Description, DescIterator> {
protected:
inline Description* OwnerPointer() const {
- return Owner->DescP;
+ return (Owner != 0) ? Owner->DescP : 0;
};
public:
protected:
inline Dependency* OwnerPointer() const {
- return Owner->DepP;
+ return (Owner != 0) ? Owner->DepP : 0;
};
public:
// 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<Dependency, DepIterator>(Owner, Trg), Type(DepVer) {
protected:
inline Provides* OwnerPointer() const {
- return Owner->ProvideP;
+ return (Owner != 0) ? Owner->ProvideP : 0;
};
public:
// 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<Provides, PrvIterator>(), Type(PrvVer) {};
class pkgCache::PkgFileIterator : public Iterator<PackageFile, PkgFileIterator> {
protected:
inline PackageFile* OwnerPointer() const {
- return Owner->PkgFileP;
+ return (Owner != 0) ? Owner->PkgFileP : 0;
};
public:
class pkgCache::VerFileIterator : public pkgCache::Iterator<VerFile, VerFileIterator> {
protected:
inline VerFile* OwnerPointer() const {
- return Owner->VerFileP;
+ return (Owner != 0) ? Owner->VerFileP : 0;
};
public:
class pkgCache::DescFileIterator : public Iterator<DescFile, DescFileIterator> {
protected:
inline DescFile* OwnerPointer() const {
- return Owner->DescFileP;
+ return (Owner != 0) ? Owner->DescFileP : 0;
};
public:
projects / apt.git / blobdiff