X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/0149949bce07d3a15cb8a197df1240d56f7bcd26..8d4b705ab0ef3a0de13a9ff9f1aa47f09112f374:/apt-pkg/pkgcache.h diff --git a/apt-pkg/pkgcache.h b/apt-pkg/pkgcache.h index 3324a2aa2..83b7548a3 100644 --- a/apt-pkg/pkgcache.h +++ b/apt-pkg/pkgcache.h @@ -1,11 +1,11 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: pkgcache.h,v 1.3 1998/07/04 22:32:12 jgg Exp $ +// $Id: pkgcache.h,v 1.25 2001/07/01 22:28:24 jgg Exp $ /* ###################################################################### Cache - Structure definitions for the cache file - Please see doc/pkglib/cache.sgml for a more detailed description of + Please see doc/apt-pkg/cache.sgml for a more detailed description of this format. Also be sure to keep that file up-to-date!! Clients should always use the CacheIterators classes for access to the @@ -16,14 +16,17 @@ ##################################################################### */ /*}}}*/ -// Header section: pkglib #ifndef PKGLIB_PKGCACHE_H #define PKGLIB_PKGCACHE_H + #include #include -#include +#include +using std::string; + +class pkgVersioningSystem; class pkgCache { public: @@ -32,36 +35,60 @@ class pkgCache struct Package; struct PackageFile; struct Version; + struct Description; struct Provides; struct Dependency; struct StringItem; + struct VerFile; + struct DescFile; // Iterators class PkgIterator; class VerIterator; + class DescIterator; class DepIterator; class PrvIterator; class PkgFileIterator; - friend PkgIterator; - friend VerIterator; - friend DepIterator; - friend PrvIterator; - friend PkgFileIterator; - + class VerFileIterator; + class DescFileIterator; + friend class PkgIterator; + friend class VerIterator; + friend class DescInterator; + friend class DepIterator; + friend class PrvIterator; + friend class PkgFileIterator; + friend class VerFileIterator; + friend class DescFileIterator; + + class Namespace; + // These are all the constants used in the cache structures - enum DepType {Depends=1,PreDepends=2,Suggests=3,Recommends=4, - Conflicts=5,Replaces=6}; - enum VerPriority {Important=1,Required=2,Standard=3,Optional=5,Extra=5}; - enum PkgSelectedState {Unknown=0,Install=1,Hold=2,DeInstall=3,Purge=4}; - enum PkgFlags {Auto=(1<<0),New=(1<<1),Obsolete=(1<<2),Essential=(1<<3), - ImmediateConf=(1<<4)}; - enum PkgInstState {Ok=0,ReInstReq=1,HoldInst=2,HoldReInstReq=3}; - enum PkgCurrentState {NotInstalled=0,UnPacked=1,HalfConfigured=2, - UnInstalled=3,HalfInstalled=4,ConfigFiles=5, - Installed=6}; - enum PkgFFlags {NotSource=(1<<0)}; - enum DepCompareOp {Or=0x10,LessEq=0x1,GreaterEq=0x2,Less=0x3, - Greater=0x4,Equals=0x5,NotEquals=0x6}; + + // WARNING - if you change these lists you must also edit + // the stringification in pkgcache.cc and also consider whether + // the cache file will become incompatible. + struct Dep + { + enum DepType {Depends=1,PreDepends=2,Suggests=3,Recommends=4, + Conflicts=5,Replaces=6,Obsoletes=7,DpkgBreaks=8}; + enum DepCompareOp {Or=0x10,NoOp=0,LessEq=0x1,GreaterEq=0x2,Less=0x3, + Greater=0x4,Equals=0x5,NotEquals=0x6}; + }; + + struct State + { + enum VerPriority {Important=1,Required=2,Standard=3,Optional=4,Extra=5}; + enum PkgSelectedState {Unknown=0,Install=1,Hold=2,DeInstall=3,Purge=4}; + enum PkgInstState {Ok=0,ReInstReq=1,HoldInst=2,HoldReInstReq=3}; + enum PkgCurrentState {NotInstalled=0,UnPacked=1,HalfConfigured=2, + HalfInstalled=4,ConfigFiles=5,Installed=6}; + }; + + struct Flag + { + enum PkgFlags {Auto=(1<<0),Essential=(1<<3),Important=(1<<4)}; + enum PkgFFlags {NotSource=(1<<0),NotAutomatic=(1<<1)}; + }; protected: @@ -69,41 +96,53 @@ class pkgCache string CacheFile; MMap ⤅ - bool Public; - bool ReadOnly; - - static unsigned long sHash(string S); - static unsigned long sHash(const char *S); + unsigned long sHash(const string &S) const; + unsigned long sHash(const char *S) const; public: // Pointers to the arrays of items Header *HeaderP; Package *PkgP; + VerFile *VerFileP; + DescFile *DescFileP; PackageFile *PkgFileP; Version *VerP; + Description *DescP; Provides *ProvideP; Dependency *DepP; StringItem *StringItemP; char *StrP; - + virtual bool ReMap(); inline bool Sync() {return Map.Sync();}; - + inline MMap &GetMap() {return Map;}; + inline void *DataEnd() {return ((unsigned char *)Map.Data()) + Map.Size();}; + // String hashing function (512 range) - inline unsigned long Hash(string S) const {return sHash(S);}; + inline unsigned long Hash(const string &S) const {return sHash(S);}; inline unsigned long Hash(const char *S) const {return sHash(S);}; // Usefull transformation things const char *Priority(unsigned char Priority); // Accessors - PkgIterator FindPkg(string Name); + PkgIterator FindPkg(const string &Name); Header &Head() {return *HeaderP;}; inline PkgIterator PkgBegin(); inline PkgIterator PkgEnd(); + inline PkgFileIterator FileBegin(); + inline PkgFileIterator FileEnd(); - pkgCache(MMap &Map); + // Make me a function + pkgVersioningSystem *VS; + + // Converters + static const char *CompTypeDeb(unsigned char Comp); + static const char *CompType(unsigned char Comp); + static const char *DepType(unsigned char Dep); + + pkgCache(MMap *Map,bool DoMap = true); virtual ~pkgCache() {}; }; @@ -121,25 +160,36 @@ struct pkgCache::Header unsigned short PackageSz; unsigned short PackageFileSz; unsigned short VersionSz; + unsigned short DescriptionSz; unsigned short DependencySz; unsigned short ProvidesSz; - + unsigned short VerFileSz; + unsigned short DescFileSz; + // Structure counts unsigned long PackageCount; unsigned long VersionCount; + unsigned long DescriptionCount; unsigned long DependsCount; unsigned long PackageFileCount; + unsigned long VerFileCount; + unsigned long DescFileCount; + unsigned long ProvidesCount; // Offsets - unsigned long FileList; // struct PackageFile - unsigned long StringList; // struct StringItem + map_ptrloc FileList; // struct PackageFile + map_ptrloc StringList; // struct StringItem + map_ptrloc VerSysName; // StringTable + map_ptrloc Architecture; // StringTable + unsigned long MaxVerFileSize; + unsigned long MaxDescFileSize; /* Allocation pools, there should be one of these for each structure excluding the header */ - DynamicMMap::Pool Pools[6]; + DynamicMMap::Pool Pools[8]; // Rapid package name lookup - unsigned long HashTable[512]; + map_ptrloc HashTable[2*1048]; bool CheckSizes(Header &Against) const; Header(); @@ -148,18 +198,16 @@ struct pkgCache::Header struct pkgCache::Package { // Pointers - unsigned long Name; // Stringtable - unsigned long VersionList; // Version - unsigned long TargetVer; // Version - unsigned long CurrentVer; // Version - unsigned long TargetDist; // StringTable (StringItem) - unsigned long Section; // StringTable (StringItem) + map_ptrloc Name; // Stringtable + map_ptrloc VersionList; // Version + map_ptrloc CurrentVer; // Version + map_ptrloc Section; // StringTable (StringItem) // Linked list - unsigned long NextPackage; // Package - unsigned long RevDepends; // Dependency - unsigned long ProvidesList; // Provides - + map_ptrloc NextPackage; // Package + map_ptrloc RevDepends; // Dependency + map_ptrloc ProvidesList; // Provides + // Install/Remove/Purge etc unsigned char SelectedState; // What unsigned char InstState; // Flags @@ -172,71 +220,135 @@ struct pkgCache::Package struct pkgCache::PackageFile { // Names - unsigned long FileName; // Stringtable - unsigned long Version; // Stringtable - unsigned long Distribution; // Stringtable - unsigned long Size; + map_ptrloc FileName; // Stringtable + map_ptrloc Archive; // Stringtable + map_ptrloc Component; // Stringtable + map_ptrloc Version; // Stringtable + map_ptrloc Origin; // Stringtable + map_ptrloc Label; // Stringtable + map_ptrloc Architecture; // Stringtable + map_ptrloc Site; // Stringtable + map_ptrloc IndexType; // Stringtable + unsigned long Size; + unsigned long Flags; // Linked list - unsigned long NextFile; // PackageFile + map_ptrloc NextFile; // PackageFile unsigned short ID; - unsigned long Flags; time_t mtime; // Modification time for the file }; +struct pkgCache::VerFile +{ + map_ptrloc File; // PackageFile + map_ptrloc NextFile; // PkgVerFile + map_ptrloc Offset; // File offset + unsigned short Size; +}; + +struct pkgCache::DescFile +{ + map_ptrloc File; // PackageFile + map_ptrloc NextFile; // PkgVerFile + map_ptrloc Offset; // File offset + unsigned short Size; +}; + struct pkgCache::Version { - unsigned long VerStr; // Stringtable - unsigned long File; // PackageFile - unsigned long Section; // StringTable (StringItem) - + map_ptrloc VerStr; // Stringtable + map_ptrloc Section; // StringTable (StringItem) + map_ptrloc Arch; // StringTable + // Lists - unsigned long NextVer; // Version - unsigned long DependsList; // Dependency - unsigned long ParentPkg; // Package - unsigned long ProvidesList; // Provides - - unsigned long Offset; - unsigned long Size; - unsigned long InstalledSize; + map_ptrloc FileList; // VerFile + map_ptrloc NextVer; // Version + map_ptrloc DescriptionList; // Description + map_ptrloc DependsList; // Dependency + map_ptrloc ParentPkg; // Package + map_ptrloc ProvidesList; // Provides + + map_ptrloc Size; // These are the .deb size + map_ptrloc InstalledSize; + unsigned short Hash; unsigned short ID; unsigned char Priority; }; +struct pkgCache::Description +{ + // Language Code store the description translation language code. If + // the value has a 0 lenght then this is readed using the Package + // file else the Translation-CODE are used. + map_ptrloc language_code; // StringTable + map_ptrloc md5sum; // StringTable + + // Linked list + map_ptrloc FileList; // DescFile + map_ptrloc NextDesc; // Description + map_ptrloc ParentPkg; // Package + + unsigned short ID; +}; + struct pkgCache::Dependency { - unsigned long Version; // Stringtable - unsigned long Package; // Package - unsigned long NextDepends; // Dependency - unsigned long NextRevDepends; // Dependency - unsigned long ParentVer; // Version + map_ptrloc Version; // Stringtable + map_ptrloc Package; // Package + map_ptrloc NextDepends; // Dependency + map_ptrloc NextRevDepends; // Dependency + map_ptrloc ParentVer; // Version // Specific types of depends + map_ptrloc ID; unsigned char Type; unsigned char CompareOp; - unsigned short ID; }; struct pkgCache::Provides { - unsigned long ParentPkg; // Pacakge - unsigned long Version; // Version - unsigned long ProvideVersion; // Stringtable - unsigned long NextProvides; // Provides - unsigned long NextPkgProv; // Provides + map_ptrloc ParentPkg; // Pacakge + map_ptrloc Version; // Version + map_ptrloc ProvideVersion; // Stringtable + map_ptrloc NextProvides; // Provides + map_ptrloc NextPkgProv; // Provides }; struct pkgCache::StringItem { - unsigned long String; // Stringtable - unsigned long NextItem; // StringItem + map_ptrloc String; // Stringtable + map_ptrloc NextItem; // StringItem }; -#include +#include inline pkgCache::PkgIterator pkgCache::PkgBegin() {return PkgIterator(*this);}; inline pkgCache::PkgIterator pkgCache::PkgEnd() {return PkgIterator(*this,PkgP);}; +inline pkgCache::PkgFileIterator pkgCache::FileBegin() + {return PkgFileIterator(*this,PkgFileP + HeaderP->FileList);}; +inline pkgCache::PkgFileIterator pkgCache::FileEnd() + {return PkgFileIterator(*this,PkgFileP);}; + +// Oh I wish for Real Name Space Support +class pkgCache::Namespace +{ + public: + + typedef pkgCache::PkgIterator PkgIterator; + typedef pkgCache::VerIterator VerIterator; + typedef pkgCache::DescIterator DescIterator; + typedef pkgCache::DepIterator DepIterator; + typedef pkgCache::PrvIterator PrvIterator; + typedef pkgCache::PkgFileIterator PkgFileIterator; + typedef pkgCache::VerFileIterator VerFileIterator; + typedef pkgCache::Version Version; + typedef pkgCache::Description Description; + typedef pkgCache::Package Package; + typedef pkgCache::Header Header; + typedef pkgCache::Dep Dep; + typedef pkgCache::Flag Flag; +}; #endif