X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/6fc33863f31051a5fc2726a236ce8b64d33bc964..41c24955e8aa1303071348d77f661742270d05c0:/apt-pkg/algorithms.h?ds=sidebyside

diff --git a/apt-pkg/algorithms.h b/apt-pkg/algorithms.h
index d17a42447..5a9a77415 100644
--- a/apt-pkg/algorithms.h
+++ b/apt-pkg/algorithms.h
@@ -1,6 +1,6 @@
 // -*- 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
@@ -16,41 +16,84 @@
    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
 
-#ifdef __GNUG__
-#pragma interface "apt-pkg/algorithms.h"
-#endif 
 
 #include <apt-pkg/packagemanager.h>
 #include <apt-pkg/depcache.h>
 
-class pkgSimulate : public pkgPackageManager
+#include <iostream>
+
+#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 compatiblity
+#include <apt-pkg/upgrade.h>
+#include <apt-pkg/update.h>
+#endif
+
+
+class pkgSimulate : public pkgPackageManager				/*{{{*/
 {
    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;
    
+   Policy iPolicy;
    pkgDepCache Sim;
+   pkgDepCache::ActionGroup group;
    
    // 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 Remove(PkgIterator Pkg);
+   virtual bool Remove(PkgIterator Pkg,bool Purge);
+
+private:
    void ShortBreaks();
+   void Describe(PkgIterator iPkg,std::ostream &out,bool Current,bool Candidate);
    
    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;
@@ -60,8 +103,9 @@ class pkgProblemResolver
    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;
    
@@ -77,17 +121,35 @@ class pkgProblemResolver
 
    void MakeScores();
    bool DoUpgrade(pkgCache::PkgIterator Pkg);
+
+   bool ResolveInternal(bool const BrokenFix = false);
+   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);
    
-   pkgProblemResolver(pkgDepCache &Cache);
-};
+   // Try to resolve problems only by using keep
+   bool ResolveByKeep();
+
+   __deprecated void InstallProtect();
 
-bool pkgDistUpgrade(pkgDepCache &Cache);
+   pkgProblemResolver(pkgDepCache *Cache);
+   ~pkgProblemResolver();
+};
+									/*}}}*/
 bool pkgApplyStatus(pkgDepCache &Cache);
 bool pkgFixBroken(pkgDepCache &Cache);
 
+void pkgPrioSortList(pkgCache &Cache,pkgCache::Version **List);
+
+
 #endif