Merge branch 'debian/jessie' into debian/experimental

[apt.git] / apt-pkg / algorithms.h

diff --git a/apt-pkg/algorithms.h b/apt-pkg/algorithms.h
index d17a42447bf24f5e04a105aaaa14c736f5d10fca..2ac28c0d753a4b8896996a2f27bf8c4b3776c2bc 100644 (file)
--- a/apt-pkg/algorithms.h
+++ b/apt-pkg/algorithms.h
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/

-// $Id: algorithms.h,v 1.3 1998/07/19 21:24:11 jgg Exp $
+// $Id: algorithms.h,v 1.10 2001/05/22 04:17:41 jgg Exp $

 /* ######################################################################
 
    Algorithms - A set of misc algorithms
 /* ######################################################################
 
    Algorithms - A set of misc algorithms


@@ -10,47 +10,93 @@
    see all of the effects of an upgrade run.
 
    pkgDistUpgrade computes an upgrade that causes as many packages as
    see all of the effects of an upgrade run.
 
    pkgDistUpgrade computes an upgrade that causes as many packages as

-   possible to move to the newest verison.
+   possible to move to the newest version.

    
    pkgApplyStatus sets the target state based on the content of the status
    field in the status file. It is important to get proper crash recovery.
 
    pkgFixBroken corrects a broken system so that it is in a sane state.
    
    pkgApplyStatus sets the target state based on the content of the status
    field in the status file. It is important to get proper crash recovery.
 
    pkgFixBroken corrects a broken system so that it is in a sane state.

+ 
+   pkgAllUpgrade attempts to upgade as many packages as possible but 
+   without installing new packages.

    
    

+   The problem resolver class contains a number of complex algorithms
+   to try to best-guess an upgrade state. It solves the problem of 
+   maximizing the number of install state packages while having no broken
+   packages. 
+

    ##################################################################### */
                                                                        /*}}}*/
    ##################################################################### */
                                                                        /*}}}*/

-// Header section: pkglib

 #ifndef PKGLIB_ALGORITHMS_H
 #define PKGLIB_ALGORITHMS_H
 
 #ifndef PKGLIB_ALGORITHMS_H
 #define PKGLIB_ALGORITHMS_H
 

-#ifdef __GNUG__
-#pragma interface "apt-pkg/algorithms.h"
-#endif 

 
 #include <apt-pkg/packagemanager.h>
 #include <apt-pkg/depcache.h>
 
 #include <apt-pkg/packagemanager.h>
 #include <apt-pkg/depcache.h>

+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+
+#include <iostream>
+#include <string>
+
+#include <apt-pkg/macros.h>
+
+#ifndef APT_8_CLEANER_HEADERS
+#include <apt-pkg/acquire.h>
+using std::ostream;
+#endif

 
 

-class pkgSimulate : public pkgPackageManager
+#ifndef APT_9_CLEANER_HEADERS
+// include pkg{DistUpgrade,AllUpgrade,MiniizeUpgrade} here for compatibility
+#include <apt-pkg/upgrade.h>
+#include <apt-pkg/update.h>
+#endif
+
+
+class pkgSimulate : public pkgPackageManager                           /*{{{*/

 {
    protected:
 
 {
    protected:
 

+   class Policy : public pkgDepCache::Policy
+   {
+      pkgDepCache *Cache;
+      public:
+      
+      virtual VerIterator GetCandidateVer(PkgIterator const &Pkg)
+      {
+        return (*Cache)[Pkg].CandidateVerIter(*Cache);
+      }
+      
+      Policy(pkgDepCache *Cache) : Cache(Cache) {};
+   };
+   

    unsigned char *Flags;
    
    unsigned char *Flags;
    

+   Policy iPolicy;

    pkgDepCache Sim;
    pkgDepCache Sim;

+   pkgDepCache::ActionGroup group;

    
    // The Actuall installation implementation
    
    // The Actuall installation implementation

-   virtual bool Install(PkgIterator Pkg,string File);
+   virtual bool Install(PkgIterator Pkg,std::string File);

    virtual bool Configure(PkgIterator Pkg);
    virtual bool Configure(PkgIterator Pkg);

-   virtual bool Remove(PkgIterator Pkg);
-   void ShortBreaks();
-   
+   virtual bool Remove(PkgIterator Pkg,bool Purge);
+
+private:
+   APT_HIDDEN void ShortBreaks();
+   APT_HIDDEN void Describe(PkgIterator iPkg,std::ostream &out,bool Current,bool Candidate);
+

    public:
 
    public:
 

-   pkgSimulate(pkgDepCache &Cache);
+   pkgSimulate(pkgDepCache *Cache);
+   ~pkgSimulate();

 };
 };

-
-class pkgProblemResolver
+                                                                       /*}}}*/
+class pkgProblemResolver                                               /*{{{*/

 {
 {

+ private:
+   /** \brief dpointer placeholder (for later in case we need it) */
+   void *d;
+

    pkgDepCache &Cache;
    typedef pkgCache::PkgIterator PkgIterator;
    typedef pkgCache::VerIterator VerIterator;
    pkgDepCache &Cache;
    typedef pkgCache::PkgIterator PkgIterator;
    typedef pkgCache::VerIterator VerIterator;


@@ -60,14 +106,15 @@ class pkgProblemResolver
    typedef pkgCache::Package Package;
    
    enum Flags {Protected = (1 << 0), PreInstalled = (1 << 1),
    typedef pkgCache::Package Package;
    
    enum Flags {Protected = (1 << 0), PreInstalled = (1 << 1),

-               Upgradable = (1 << 2)};
-   signed short *Scores;
+               Upgradable = (1 << 2), ReInstateTried = (1 << 3),
+               ToRemove = (1 << 4)};
+   int *Scores;

    unsigned char *Flags;
    bool Debug;
    
    // Sort stuff
    static pkgProblemResolver *This;
    unsigned char *Flags;
    bool Debug;
    
    // Sort stuff
    static pkgProblemResolver *This;

-   static int ScoreSort(const void *a,const void *b);
+   APT_HIDDEN static int ScoreSort(const void *a,const void *b) APT_PURE;

 
    struct PackageKill
    {
 
    struct PackageKill
    {


@@ -75,19 +122,47 @@ class pkgProblemResolver
       DepIterator Dep;
    };
 
       DepIterator Dep;
    };
 

-   void MakeScores();
-   bool DoUpgrade(pkgCache::PkgIterator Pkg);
-   
+   APT_HIDDEN void MakeScores();
+   APT_HIDDEN bool DoUpgrade(pkgCache::PkgIterator Pkg);
+
+   APT_HIDDEN bool ResolveInternal(bool const BrokenFix = false);
+   APT_HIDDEN bool ResolveByKeepInternal();
+
+   protected:
+   bool InstOrNewPolicyBroken(pkgCache::PkgIterator Pkg);
+

    public:
    
    public:
    

-   inline void Protect(pkgCache::PkgIterator Pkg) {Flags[Pkg->ID] |= Protected;};
+   inline void Protect(pkgCache::PkgIterator Pkg) {Flags[Pkg->ID] |= Protected; Cache.MarkProtected(Pkg);};
+   inline void Remove(pkgCache::PkgIterator Pkg) {Flags[Pkg->ID] |= ToRemove;};
+   inline void Clear(pkgCache::PkgIterator Pkg) {Flags[Pkg->ID] &= ~(Protected | ToRemove);};
+
+   // Try to intelligently resolve problems by installing and removing packages
+#if APT_PKG_ABI >= 413
+   bool Resolve(bool BrokenFix = false, OpProgress * const Progress = NULL);
+#else

    bool Resolve(bool BrokenFix = false);
    bool Resolve(bool BrokenFix = false);

-   
-   pkgProblemResolver(pkgDepCache &Cache);
-};
+   bool Resolve(bool BrokenFix, OpProgress * const Progress);
+#endif
+
+   // Try to resolve problems only by using keep
+#if APT_PKG_ABI >= 413
+   bool ResolveByKeep(OpProgress * const Progress = NULL);
+#else
+   bool ResolveByKeep();
+   bool ResolveByKeep(OpProgress * const Progress);
+#endif
+
+   APT_DEPRECATED void InstallProtect();

 
 

-bool pkgDistUpgrade(pkgDepCache &Cache);
+   pkgProblemResolver(pkgDepCache *Cache);
+   ~pkgProblemResolver();
+};
+                                                                       /*}}}*/

 bool pkgApplyStatus(pkgDepCache &Cache);
 bool pkgFixBroken(pkgDepCache &Cache);
 
 bool pkgApplyStatus(pkgDepCache &Cache);
 bool pkgFixBroken(pkgDepCache &Cache);
 

+void pkgPrioSortList(pkgCache &Cache,pkgCache::Version **List);
+
+

 #endif
 #endif