do not require non-broken systems in 'upgrade'

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

diff --git a/apt-pkg/algorithms.h b/apt-pkg/algorithms.h
index 174a7f58d18aea15aa0c36bf2fde93c243a3de8a..5b0d8fb2997ed29c01c85976517c0bbfaa0a20bf 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;
-   
-   // The Actuall installation implementation
-   virtual bool Install(PkgIterator Pkg,string File);
-   virtual bool Configure(PkgIterator Pkg);
-   virtual bool Remove(PkgIterator Pkg,bool Purge);
+   pkgDepCache::ActionGroup group;
+
+   // The Actual installation implementation
+   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 +108,12 @@ 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 int ScoreSort(Package const *A, Package const *B) APT_PURE;
 
    struct PackageKill
    {
@@ -104,33 +121,37 @@ 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);
 
-bool pkgDistUpgrade(pkgDepCache &Cache);
+   APT_DEPRECATED_MSG("NOOP as MarkInstall enforces not overriding FromUser markings") void InstallProtect();
+
+   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);
-                    
+
+
 #endif