pass --force-remove-essential to dpkg only if needed

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

diff --git a/apt-pkg/algorithms.h b/apt-pkg/algorithms.h
index 9dfa1538a895345fb7dfddcc558248b1947a8537..c1a26587dcc994bf16a5566f84a4a9cadec6726a 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.
@@ -33,26 +32,29 @@
 
 #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>
-// include pkg{DistUpgrade,AllUpgrade,MiniizeUpgrade} here for compatiblity
 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 pkgAcquireStatus;
-
 
 class pkgSimulate : public pkgPackageManager                           /*{{{*/
 {
+   void * const d;
    protected:
 
    class Policy : public pkgDepCache::Policy
@@ -60,12 +62,12 @@ class pkgSimulate : public pkgPackageManager                                /*{{{*/
       pkgDepCache *Cache;
       public:
       
-      virtual VerIterator GetCandidateVer(PkgIterator const &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;
@@ -73,27 +75,27 @@ class pkgSimulate : public pkgPackageManager                                /*{{{*/
    Policy iPolicy;
    pkgDepCache Sim;
    pkgDepCache::ActionGroup group;
-   
-   // The Actuall installation implementation
-   virtual bool Install(PkgIterator Pkg,std::string File);
-   virtual bool Configure(PkgIterator Pkg);
-   virtual bool Remove(PkgIterator Pkg,bool Purge);
+
+   // 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,std::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);
-   ~pkgSimulate();
+   explicit pkgSimulate(pkgDepCache *Cache);
+   virtual ~pkgSimulate();
 };
                                                                        /*}}}*/
 class pkgProblemResolver                                               /*{{{*/
 {
  private:
    /** \brief dpointer placeholder (for later in case we need it) */
-   void *d;
+   void * const d;
 
    pkgDepCache &Cache;
    typedef pkgCache::PkgIterator PkgIterator;
@@ -111,8 +113,7 @@ class pkgProblemResolver                                            /*{{{*/
    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
    {
@@ -120,12 +121,9 @@ class pkgProblemResolver                                           /*{{{*/
       DepIterator Dep;
    };
 
-   void MakeScores();
-   bool DoUpgrade(pkgCache::PkgIterator Pkg);
+   APT_HIDDEN void MakeScores();
+   APT_HIDDEN bool DoUpgrade(pkgCache::PkgIterator Pkg);
 
-   bool ResolveInternal(bool const BrokenFix = false);
-   bool ResolveByKeepInternal();
-   
    protected:
    bool InstOrNewPolicyBroken(pkgCache::PkgIterator Pkg);
 
@@ -134,17 +132,19 @@ class pkgProblemResolver                                          /*{{{*/
    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);
+   APT_HIDDEN bool ResolveInternal(bool const BrokenFix = false);
+
    // Try to resolve problems only by using keep
-   bool ResolveByKeep();
+   bool ResolveByKeep(OpProgress * const Progress = NULL);
+   APT_HIDDEN bool ResolveByKeepInternal();
 
-   __deprecated void InstallProtect();
+   APT_DEPRECATED_MSG("NOOP as MarkInstall enforces not overriding FromUser markings") void InstallProtect();
 
-   pkgProblemResolver(pkgDepCache *Cache);
-   ~pkgProblemResolver();
+   explicit pkgProblemResolver(pkgDepCache *Cache);
+   virtual ~pkgProblemResolver();
 };
                                                                        /*}}}*/
 bool pkgApplyStatus(pkgDepCache &Cache);
@@ -152,8 +152,5 @@ bool pkgFixBroken(pkgDepCache &Cache);
 
 void pkgPrioSortList(pkgCache &Cache,pkgCache::Version **List);
 
-bool ListUpdate(pkgAcquireStatus &progress, pkgSourceList &List, int PulseInterval=0);
-bool AcquireUpdate(pkgAcquire &Fetcher, int const PulseInterval = 0,
-                  bool const RunUpdateScripts = true, bool const ListCleanup = true);
 
 #endif