debian/NEWS: Mention new pinning algorithm added in 2.0~exp1

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

diff --git a/apt-pkg/algorithms.h b/apt-pkg/algorithms.h
index 210127ab9125e321f5138242898baed9ce29d78d..aad261b6334993c95fd6ffc946c7f7d571b424c7 100644 (file)
--- a/apt-pkg/algorithms.h
+++ b/apt-pkg/algorithms.h
@@ -1,6 +1,5 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: algorithms.h,v 1.10 2001/05/22 04:17:41 jgg Exp $
 /* ######################################################################
 
    Algorithms - A set of misc algorithms
@@ -10,7 +9,7 @@
    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.
@@ -30,19 +29,32 @@
 #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/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
+
+#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
+
+class pkgSimulate : public pkgPackageManager                           /*{{{*/
 {
+   void * const d;
    protected:
 
    class Policy : public pkgDepCache::Policy
@@ -50,35 +62,41 @@ class pkgSimulate : public pkgPackageManager
       pkgDepCache *Cache;
       public:
       
-      virtual VerIterator GetCandidateVer(PkgIterator Pkg)
+      virtual VerIterator GetCandidateVer(PkgIterator const &Pkg) APT_OVERRIDE
       {
         return (*Cache)[Pkg].CandidateVerIter(*Cache);
       }
       
-      Policy(pkgDepCache *Cache) : Cache(Cache) {};
+      explicit Policy(pkgDepCache *Cache) : Cache(Cache) {};
    };
    
    unsigned char *Flags;
    
    Policy iPolicy;
    pkgDepCache Sim;
+   pkgDepCache::ActionGroup group;
    
    // The Actuall installation implementation
-   virtual bool Install(PkgIterator Pkg,string File);
-   virtual bool Configure(PkgIterator Pkg);
-   virtual bool Remove(PkgIterator Pkg,bool Purge);
+   virtual bool Install(PkgIterator Pkg,std::string File) APT_OVERRIDE;
+   virtual bool Configure(PkgIterator Pkg) APT_OVERRIDE;
+   virtual bool Remove(PkgIterator Pkg,bool Purge) APT_OVERRIDE;
 
 private:
-   void ShortBreaks();
-   void Describe(PkgIterator iPkg,ostream &out,bool Current,bool Candidate);
-   
+   APT_HIDDEN void ShortBreaks();
+   APT_HIDDEN void Describe(PkgIterator iPkg,std::ostream &out,bool Current,bool Candidate);
+
    public:
 
-   pkgSimulate(pkgDepCache *Cache);
+   explicit pkgSimulate(pkgDepCache *Cache);
+   virtual ~pkgSimulate();
 };
-
-class pkgProblemResolver
+                                                                       /*}}}*/
+class pkgProblemResolver                                               /*{{{*/
 {
+ private:
+   /** \brief dpointer placeholder (for later in case we need it) */
+   void * const d;
+
    pkgDepCache &Cache;
    typedef pkgCache::PkgIterator PkgIterator;
    typedef pkgCache::VerIterator VerIterator;
@@ -90,13 +108,13 @@ class pkgProblemResolver
    enum Flags {Protected = (1 << 0), PreInstalled = (1 << 1),
                Upgradable = (1 << 2), ReInstateTried = (1 << 3),
                ToRemove = (1 << 4)};
-   signed short *Scores;
+   int *Scores;
    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
    {
@@ -104,37 +122,37 @@ class pkgProblemResolver
       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:
    
-   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   
-   bool Resolve(bool BrokenFix = false);
-   
+
+   // Try to intelligently resolve problems by installing and removing packages
+   bool Resolve(bool BrokenFix = false, OpProgress * const Progress = NULL);
+
    // Try to resolve problems only by using keep
-   bool ResolveByKeep();
-   
-   void InstallProtect();   
-   
-   pkgProblemResolver(pkgDepCache *Cache);
-   ~pkgProblemResolver();
-};
+   bool ResolveByKeep(OpProgress * const Progress = NULL);
+
+   APT_DEPRECATED void InstallProtect();
 
-bool pkgDistUpgrade(pkgDepCache &Cache);
+   explicit pkgProblemResolver(pkgDepCache *Cache);
+   virtual ~pkgProblemResolver();
+};
+                                                                       /*}}}*/
 bool pkgApplyStatus(pkgDepCache &Cache);
 bool pkgFixBroken(pkgDepCache &Cache);
-bool pkgAllUpgrade(pkgDepCache &Cache);
-bool pkgMinimizeUpgrade(pkgDepCache &Cache);
 
 void pkgPrioSortList(pkgCache &Cache,pkgCache::Version **List);
 
-// mark all reachable packages, everything that is not reach can 
-// be removed
-bool pkgMarkUsed(pkgDepCache &Cache);
-                    
+
 #endif