Added some control over how dpkg is invoked
[ntk/apt.git] / apt-pkg / pkgcache.h
index c8fe3a8..2d174cc 100644 (file)
@@ -1,11 +1,11 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: pkgcache.h,v 1.2 1998/07/04 05:57:36 jgg Exp $
+// $Id: pkgcache.h,v 1.15 1998/12/14 08:07:29 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
 #ifndef PKGLIB_PKGCACHE_H
 #define PKGLIB_PKGCACHE_H
 
+#ifdef __GNUG__
+#pragma interface "apt-pkg/pkgcache.h"
+#endif 
+
 #include <string>
 #include <time.h>
-#include <pkglib/mmap.h>
+#include <apt-pkg/mmap.h>
+
+/* This should be a 32 bit type, larger tyes use too much ram and smaller
+   types are too small. Where ever possible 'unsigned long' should be used
+   instead of this internal type */
+typedef unsigned int __apt_ptrloc;
 
 class pkgCache
 {
@@ -35,6 +44,7 @@ class pkgCache
    struct Provides;
    struct Dependency;
    struct StringItem;
+   struct VerFile;
    
    // Iterators
    class PkgIterator;
@@ -42,26 +52,38 @@ class pkgCache
    class DepIterator;
    class PrvIterator;
    class PkgFileIterator;
+   class VerFileIterator;
    friend PkgIterator;
    friend VerIterator;
    friend DepIterator;
    friend PrvIterator;
    friend PkgFileIterator;
-
+   friend VerFileIterator;
+   
    // 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};
+   struct Dep
+   {
+      enum DepType {Depends=1,PreDepends=2,Suggests=3,Recommends=4,
+        Conflicts=5,Replaces=6};
+      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,
+        UnInstalled=3,HalfInstalled=4,ConfigFiles=5,Installed=6};
+   };
+   
+   struct Flag
+   {
+      enum PkgFlags {Auto=(1<<0),New=(1<<1),Obsolete=(1<<2),Essential=(1<<3),
+        ImmediateConf=(1<<4)};
+      enum PkgFFlags {NotSource=(1<<0),NotAutomatic=(1<<1)};
+   };
    
    protected:
    
@@ -69,9 +91,6 @@ class pkgCache
    string CacheFile;
    MMap &Map;
 
-   bool Public;
-   bool ReadOnly;
-
    static unsigned long sHash(string S);
    static unsigned long sHash(const char *S);
    
@@ -80,26 +99,33 @@ class pkgCache
    // Pointers to the arrays of items
    Header *HeaderP;
    Package *PkgP;
+   VerFile *VerFileP;
    PackageFile *PkgFileP;
    Version *VerP;
    Provides *ProvideP;
    Dependency *DepP;
    StringItem *StringItemP;
    char *StrP;
-   
+
    virtual bool ReMap();
    inline bool Sync() {return Map.Sync();};
+   inline MMap &GetMap() {return Map;};
    
    // String hashing function (512 range)
    inline unsigned long Hash(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);
    Header &Head() {return *HeaderP;};
    inline PkgIterator PkgBegin();
    inline PkgIterator PkgEnd();
-
+   inline PkgFileIterator FileBegin();
+   inline PkgFileIterator FileEnd();
+   
    pkgCache(MMap &Map);
    virtual ~pkgCache() {};
 };
@@ -120,23 +146,27 @@ struct pkgCache::Header
    unsigned short VersionSz;
    unsigned short DependencySz;
    unsigned short ProvidesSz;
-
+   unsigned short VerFileSz;
+   
    // Structure counts
    unsigned long PackageCount;
    unsigned long VersionCount;
    unsigned long DependsCount;
    unsigned long PackageFileCount;
+   unsigned long VerFileCount;
+   unsigned long ProvidesCount;
    
    // Offsets
-   unsigned long FileList;              // struct PackageFile
-   unsigned long StringList;            // struct StringItem
+   __apt_ptrloc FileList;              // struct PackageFile
+   __apt_ptrloc StringList;            // struct StringItem
+   unsigned long MaxVerFileSize;
 
    /* Allocation pools, there should be one of these for each structure
       excluding the header */
-   DynamicMMap::Pool Pools[6];
+   DynamicMMap::Pool Pools[7];
    
    // Rapid package name lookup
-   unsigned long HashTable[512];
+   __apt_ptrloc HashTable[2048];
 
    bool CheckSizes(Header &Against) const;
    Header();
@@ -145,17 +175,17 @@ 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)
+   __apt_ptrloc Name;              // Stringtable
+   __apt_ptrloc VersionList;       // Version
+   __apt_ptrloc TargetVer;         // Version
+   __apt_ptrloc CurrentVer;        // Version
+   __apt_ptrloc TargetDist;        // StringTable (StringItem)
+   __apt_ptrloc Section;           // StringTable (StringItem)
       
    // Linked list 
-   unsigned long NextPackage;       // Package
-   unsigned long RevDepends;        // Dependency
-   unsigned long ProvidesList;      // Provides
+   __apt_ptrloc NextPackage;       // Package
+   __apt_ptrloc RevDepends;        // Dependency
+   __apt_ptrloc ProvidesList;      // Provides
    
    // Install/Remove/Purge etc
    unsigned char SelectedState;     // What
@@ -169,44 +199,55 @@ struct pkgCache::Package
 struct pkgCache::PackageFile
 {
    // Names
-   unsigned long FileName;        // Stringtable
-   unsigned long Version;         // Stringtable
-   unsigned long Distribution;    // Stringtable
-   unsigned long Size;
+   __apt_ptrloc FileName;        // Stringtable
+   __apt_ptrloc Archive;         // Stringtable
+   __apt_ptrloc Component;       // Stringtable
+   __apt_ptrloc Version;         // Stringtable
+   __apt_ptrloc Origin;          // Stringtable
+   __apt_ptrloc Label;           // Stringtable
+   __apt_ptrloc Architecture;    // Stringtable
+   unsigned long Size;            
+   unsigned long Flags;
    
    // Linked list
-   unsigned long NextFile;        // PackageFile
+   __apt_ptrloc NextFile;        // PackageFile
    unsigned short ID;
-   unsigned long Flags;
    time_t mtime;                  // Modification time for the file
 };
 
+struct pkgCache::VerFile
+{
+   __apt_ptrloc File;           // PackageFile
+   __apt_ptrloc NextFile;       // PkgVerFile
+   __apt_ptrloc Offset;         // File offset
+   unsigned short Size;
+};
+
 struct pkgCache::Version
 {
-   unsigned long VerStr;            // Stringtable
-   unsigned long File;              // PackageFile
-   unsigned long Section;           // StringTable (StringItem)
+   __apt_ptrloc VerStr;            // Stringtable
+   __apt_ptrloc Section;           // StringTable (StringItem)
    
    // 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;
+   __apt_ptrloc FileList;          // VerFile
+   __apt_ptrloc NextVer;           // Version
+   __apt_ptrloc DependsList;       // Dependency
+   __apt_ptrloc ParentPkg;         // Package
+   __apt_ptrloc ProvidesList;      // Provides
+   
+   __apt_ptrloc Size;              // These are the .deb size
+   __apt_ptrloc InstalledSize;
    unsigned short ID;
    unsigned char Priority;
 };
 
 struct pkgCache::Dependency
 {
-   unsigned long Version;         // Stringtable
-   unsigned long Package;         // Package
-   unsigned long NextDepends;     // Dependency
-   unsigned long NextRevDepends;  // Dependency
-   unsigned long ParentVer;       // Version
+   __apt_ptrloc Version;         // Stringtable
+   __apt_ptrloc Package;         // Package
+   __apt_ptrloc NextDepends;     // Dependency
+   __apt_ptrloc NextRevDepends;  // Dependency
+   __apt_ptrloc ParentVer;       // Version
    
    // Specific types of depends
    unsigned char Type;
@@ -216,24 +257,28 @@ struct pkgCache::Dependency
 
 struct pkgCache::Provides
 {
-   unsigned long ParentPkg;        // Pacakge
-   unsigned long Version;          // Version
-   unsigned long ProvideVersion;   // Stringtable
-   unsigned long NextProvides;     // Provides
-   unsigned long NextPkgProv;      // Provides
+   __apt_ptrloc ParentPkg;        // Pacakge
+   __apt_ptrloc Version;          // Version
+   __apt_ptrloc ProvideVersion;   // Stringtable
+   __apt_ptrloc NextProvides;     // Provides
+   __apt_ptrloc NextPkgProv;      // Provides
 };
 
 struct pkgCache::StringItem
 {
-   unsigned long String;        // Stringtable
-   unsigned long NextItem;      // StringItem
+   __apt_ptrloc String;        // Stringtable
+   __apt_ptrloc NextItem;      // StringItem
 };
 
-#include <pkglib/cacheiterators.h>
+#include <apt-pkg/cacheiterators.h>
 
 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);};
+inline pkgCache::PkgFileIterator pkgCache::FileEnd()
+       {return PkgFileIterator(*this,PkgFileP);};
 
 #endif