* make it possible to fall back to other sources on fail in MediaChange events

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

diff --git a/apt-pkg/algorithms.h b/apt-pkg/algorithms.h
index d68fbfbea7e9c8eb0446dfad5de74e06ee0fb4dd..174a7f58d18aea15aa0c36bf2fde93c243a3de8a 100644 (file)
--- a/apt-pkg/algorithms.h
+++ b/apt-pkg/algorithms.h
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: algorithms.h,v 1.8 1999/10/27 04:38:27 jgg Exp $
+// $Id: algorithms.h,v 1.10 2001/05/22 04:17:41 jgg Exp $
 /* ######################################################################
 
    Algorithms - A set of misc algorithms
@@ -27,7 +27,6 @@
 
    ##################################################################### */
                                                                        /*}}}*/
-// Header section: pkglib
 #ifndef PKGLIB_ALGORITHMS_H
 #define PKGLIB_ALGORITHMS_H
 
@@ -38,23 +37,44 @@
 #include <apt-pkg/packagemanager.h>
 #include <apt-pkg/depcache.h>
 
+#include <iostream>
+
+using std::ostream;
+
 class pkgSimulate : public pkgPackageManager
 {
    protected:
 
+   class Policy : public pkgDepCache::Policy
+   {
+      pkgDepCache *Cache;
+      public:
+      
+      virtual VerIterator GetCandidateVer(PkgIterator Pkg)
+      {
+        return (*Cache)[Pkg].CandidateVerIter(*Cache);
+      }
+      
+      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);
+
+private:
    void ShortBreaks();
+   void Describe(PkgIterator iPkg,ostream &out,bool Current,bool Candidate);
    
    public:
 
-   pkgSimulate(pkgDepCache &Cache);
+   pkgSimulate(pkgDepCache *Cache);
 };
 
 class pkgProblemResolver
@@ -101,7 +121,8 @@ class pkgProblemResolver
    
    void InstallProtect();   
    
-   pkgProblemResolver(pkgDepCache &Cache);
+   pkgProblemResolver(pkgDepCache *Cache);
+   ~pkgProblemResolver();
 };
 
 bool pkgDistUpgrade(pkgDepCache &Cache);
@@ -110,4 +131,6 @@ bool pkgFixBroken(pkgDepCache &Cache);
 bool pkgAllUpgrade(pkgDepCache &Cache);
 bool pkgMinimizeUpgrade(pkgDepCache &Cache);
 
+void pkgPrioSortList(pkgCache &Cache,pkgCache::Version **List);
+                    
 #endif