From d03105d9fd5af76067f033475d4d60d30063e96a Mon Sep 17 00:00:00 2001 From: Julian Andres Klode Date: Mon, 6 May 2019 11:51:36 +0200 Subject: Get rid of pkgExtract and pkgFLCache These classes are not actually being used, they were part of the dpkg replacement that never happened. --- apt-inst/filelist.h | 312 ---------------------------------------------------- 1 file changed, 312 deletions(-) delete mode 100644 apt-inst/filelist.h (limited to 'apt-inst/filelist.h') diff --git a/apt-inst/filelist.h b/apt-inst/filelist.h deleted file mode 100644 index c5f103d87..000000000 --- a/apt-inst/filelist.h +++ /dev/null @@ -1,312 +0,0 @@ -// -*- mode: cpp; mode: fold -*- -// Description /*{{{*/ -/* ###################################################################### - - File Listing - Manages a Cache of File -> Package names. - - This is identical to the Package cache, except that the generator - (which is much simpler) is integrated directly into the main class, - and it has been designed to handle live updates. - - The storage content of the class is maintained in a memory map and is - written directly to the file system. Performance is traded against - space to give something that performs well and remains small. - The average per file usage is 32 bytes which yields about a meg every - 36k files. Directory paths are collected into a binary tree and stored - only once, this offsets the cost of the hash nodes enough to keep - memory usage slightly less than the sum of the filenames. - - The file names are stored into a fixed size chained hash table that is - linked to the package name and to the directory component. - - Each file node has a set of associated flags that indicate the current - state of the file. - - ##################################################################### */ - /*}}}*/ -#ifndef PKGLIB_FILELIST_H -#define PKGLIB_FILELIST_H - -#include - -#include -#include - -class pkgFLCache -{ - public: - struct Header; - struct Node; - struct Directory; - struct Package; - struct Diversion; - struct ConfFile; - - class NodeIterator; - class DirIterator; - class PkgIterator; - class DiverIterator; - - protected: - std::string CacheFile; - DynamicMMap ⤅ - map_ptrloc LastTreeLookup; - unsigned long LastLookupSize; - - // Helpers for the addition algorithms - map_ptrloc TreeLookup(map_ptrloc *Base,const char *Text,const char *TextEnd, - unsigned long Size,unsigned int *Count = 0, - bool Insert = false); - - public: - - // Pointers to the arrays of items - Header *HeaderP; - Node *NodeP; - Directory *DirP; - Package *PkgP; - Diversion *DiverP; - ConfFile *ConfP; - char *StrP; - unsigned char *AnyP; - - // Quick accessors - Node *FileHash; - - // Accessors - Header &Head() {return *HeaderP;}; - void PrintTree(map_ptrloc Base,unsigned long Size); - - // Add/Find things - PkgIterator GetPkg(const char *Name,const char *End,bool Insert); - inline PkgIterator GetPkg(const char *Name,bool Insert); - NodeIterator GetNode(const char *Name, - const char *NameEnd, - map_ptrloc Loc, - bool Insert,bool Divert); - Node *HashNode(NodeIterator const &N); - void DropNode(map_ptrloc Node); - - inline DiverIterator DiverBegin(); - - // Diversion control - void BeginDiverLoad(); - void FinishDiverLoad(); - bool AddDiversion(PkgIterator const &Owner,const char *From, - const char *To); - bool AddConfFile(const char *Name,const char *NameEnd, - PkgIterator const &Owner,const unsigned char *Sum); - - explicit pkgFLCache(DynamicMMap &Map); -// ~pkgFLCache(); -}; - -struct pkgFLCache::Header -{ - // Signature information - unsigned long Signature; - short MajorVersion; - short MinorVersion; - bool Dirty; - - // Size of structure values - unsigned HeaderSz; - unsigned NodeSz; - unsigned DirSz; - unsigned PackageSz; - unsigned DiversionSz; - unsigned ConfFileSz; - - // Structure Counts; - unsigned int NodeCount; - unsigned int DirCount; - unsigned int PackageCount; - unsigned int DiversionCount; - unsigned int ConfFileCount; - unsigned int HashSize; - unsigned long UniqNodes; - - // Offsets - map_ptrloc FileHash; - map_ptrloc DirTree; - map_ptrloc Packages; - map_ptrloc Diversions; - - /* Allocation pools, there should be one of these for each structure - excluding the header */ - DynamicMMap::Pool Pools[5]; - - bool CheckSizes(Header &Against) const; - Header(); -}; - -/* The bit field is used to advoid incurring an extra 4 bytes x 40000, - Pointer is the most infrequently used member of the structure */ -struct pkgFLCache::Node -{ - map_ptrloc Dir; // Dir - map_ptrloc File; // String - unsigned Pointer:24; // Package/Diversion/ConfFile - unsigned Flags:8; // Package - map_ptrloc Next; // Node - map_ptrloc NextPkg; // Node - - enum Flags {Diversion = (1<<0),ConfFile = (1<<1), - NewConfFile = (1<<2),NewFile = (1<<3), - Unpacked = (1<<4),Replaced = (1<<5)}; -}; - -struct pkgFLCache::Directory -{ - map_ptrloc Left; // Directory - map_ptrloc Right; // Directory - map_ptrloc Name; // String -}; - -struct pkgFLCache::Package -{ - map_ptrloc Left; // Package - map_ptrloc Right; // Package - map_ptrloc Name; // String - map_ptrloc Files; // Node -}; - -struct pkgFLCache::Diversion -{ - map_ptrloc OwnerPkg; // Package - map_ptrloc DivertFrom; // Node - map_ptrloc DivertTo; // String - - map_ptrloc Next; // Diversion - unsigned long Flags; - - enum Flags {Touched = (1<<0)}; -}; - -struct pkgFLCache::ConfFile -{ - map_ptrloc OwnerPkg; // Package - unsigned char MD5[16]; -}; - -class pkgFLCache::PkgIterator -{ - Package *Pkg; - pkgFLCache *Owner; - - public: - - inline bool end() const {return Owner == 0 || Pkg == Owner->PkgP?true:false;} - - // 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 unsigned long Offset() const {return Pkg - Owner->PkgP;} - inline const char *Name() const {return Pkg->Name == 0?0:Owner->StrP + Pkg->Name;} - inline pkgFLCache::NodeIterator Files() const; - - PkgIterator() : Pkg(0), Owner(0) {} - PkgIterator(pkgFLCache &Owner,Package *Trg) : Pkg(Trg), Owner(&Owner) {} -}; - -class pkgFLCache::DirIterator -{ - Directory *Dir; - pkgFLCache *Owner; - - public: - - // Accessors - inline Directory *operator ->() {return Dir;} - inline Directory const *operator ->() const {return Dir;} - inline Directory const &operator *() const {return *Dir;} - inline operator Directory *() {return Dir == Owner->DirP?0:Dir;} - inline operator Directory const *() const {return Dir == Owner->DirP?0:Dir;} - - inline const char *Name() const {return Dir->Name == 0?0:Owner->StrP + Dir->Name;} - - DirIterator() : Dir(0), Owner(0) {} - DirIterator(pkgFLCache &Owner,Directory *Trg) : Dir(Trg), Owner(&Owner) {} -}; - -class pkgFLCache::DiverIterator -{ - Diversion *Diver; - pkgFLCache *Owner; - - public: - - // Iteration - void operator ++(int) {if (Diver != Owner->DiverP) Diver = Owner->DiverP + Diver->Next;} - inline void operator ++() {operator ++(0);} - inline bool end() const {return Owner == 0 || Diver == Owner->DiverP;} - - // Accessors - inline Diversion *operator ->() {return Diver;} - inline Diversion const *operator ->() const {return Diver;} - inline Diversion const &operator *() const {return *Diver;} - inline operator Diversion *() {return Diver == Owner->DiverP?0:Diver;} - inline operator Diversion const *() const {return Diver == Owner->DiverP?0:Diver;} - - inline PkgIterator OwnerPkg() const {return PkgIterator(*Owner,Owner->PkgP + Diver->OwnerPkg);} - inline NodeIterator DivertFrom() const; - inline NodeIterator DivertTo() const; - - DiverIterator() : Diver(0), Owner(0) {}; - DiverIterator(pkgFLCache &Owner,Diversion *Trg) : Diver(Trg), Owner(&Owner) {} -}; - -class pkgFLCache::NodeIterator -{ - Node *Nde; - enum {NdePkg, NdeHash} Type; - pkgFLCache *Owner; - - public: - - // Iteration - void operator ++(int) {if (Nde != Owner->NodeP) Nde = Owner->NodeP + - (Type == NdePkg?Nde->NextPkg:Nde->Next);} - inline void operator ++() {operator ++(0);} - inline bool end() const {return Owner == 0 || Nde == Owner->NodeP;} - - // Accessors - inline Node *operator ->() {return Nde;} - inline Node const *operator ->() const {return Nde;} - inline Node const &operator *() const {return *Nde;} - inline operator Node *() {return Nde == Owner->NodeP?0:Nde;} - inline operator Node const *() const {return Nde == Owner->NodeP?0:Nde;} - inline unsigned long Offset() const {return Nde - Owner->NodeP;} - inline DirIterator Dir() const {return DirIterator(*Owner,Owner->DirP + Nde->Dir);} - inline DiverIterator Diversion() const {return DiverIterator(*Owner,Owner->DiverP + Nde->Pointer);} - inline const char *File() const {return Nde->File == 0?0:Owner->StrP + Nde->File;} - inline const char *DirN() const {return Owner->StrP + Owner->DirP[Nde->Dir].Name;} - Package *RealPackage() const; - - NodeIterator() : Nde(0), Type(NdeHash), Owner(0) {}; - explicit NodeIterator(pkgFLCache &Owner) : Nde(Owner.NodeP), Type(NdeHash), Owner(&Owner) {} - NodeIterator(pkgFLCache &Owner,Node *Trg) : Nde(Trg), Type(NdeHash), Owner(&Owner) {} - NodeIterator(pkgFLCache &Owner,Node *Trg,Package *) : Nde(Trg), Type(NdePkg), Owner(&Owner) {} -}; - -/* Inlines with forward references that cannot be included directly in their - respsective classes */ -inline pkgFLCache::NodeIterator pkgFLCache::DiverIterator::DivertFrom() const - {return NodeIterator(*Owner,Owner->NodeP + Diver->DivertFrom);} -inline pkgFLCache::NodeIterator pkgFLCache::DiverIterator::DivertTo() const - {return NodeIterator(*Owner,Owner->NodeP + Diver->DivertTo);} - -inline pkgFLCache::NodeIterator pkgFLCache::PkgIterator::Files() const - {return NodeIterator(*Owner,Owner->NodeP + Pkg->Files,Pkg);} - -inline pkgFLCache::DiverIterator pkgFLCache::DiverBegin() - {return DiverIterator(*this,DiverP + HeaderP->Diversions);} - -inline pkgFLCache::PkgIterator pkgFLCache::GetPkg(const char *Name,bool Insert) - {return GetPkg(Name,Name+strlen(Name),Insert);} - -#endif -- cgit v1.2.3