count strings more accurately for stats

So far, only the few strings stored in stringitems were counted, but
many more strings are directly inserted into the cache. We account for
this now by identifying all these different strings and measure their
length. We are still not at the correct size of the cache in 'stats'
this way, but we are now again a bit closer.

Git-Dch: Ignore

diff --git a/cmdline/apt-cache.cc b/cmdline/apt-cache.cc
index 1447feb811aa47f8c032a275c3d03a0a48ade7d9..4030ce4e61ecb279d2c0d68d39332d1097ad6425 100644 (file)
--- a/cmdline/apt-cache.cc
+++ b/cmdline/apt-cache.cc
@@ -375,31 +375,56 @@ static bool Stats(CommandLine &)
       SizeToStr(Cache->Head().DescFileCount*Cache->Head().DescFileSz) << ')' << endl;
    cout << _("Total Provides mappings: ") << Cache->Head().ProvidesCount << " (" <<
       SizeToStr(Cache->Head().ProvidesCount*Cache->Head().ProvidesSz) << ')' << endl;
-   
-   // String list stats
-   unsigned long Size = 0;
-   unsigned long Count = 0;
-   for (pkgCache::StringItem *I = Cache->StringItemP + Cache->Head().StringList;
-        I!= Cache->StringItemP; I = Cache->StringItemP + I->NextItem)
-   {
-      Count++;
-      Size += strlen(Cache->StrP + I->String) + 1;
-   }
-   cout << _("Total globbed strings: ") << Count << " (" << SizeToStr(Size) << ')' << endl;
 
-   unsigned long DepVerSize = 0;
+   // String list stats
+   std::set<map_stringitem_t> stritems;
+   for (pkgCache::GrpIterator G = Cache->GrpBegin(); G.end() == false; ++G)
+      stritems.insert(G->Name);
    for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
    {
+      stritems.insert(P->Arch);
       for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V)
       {
+        if (V->VerStr != 0)
+           stritems.insert(V->VerStr);
+        if (V->Section != 0)
+           stritems.insert(V->Section);
         for (pkgCache::DepIterator D = V.DependsList(); D.end() == false; ++D)
         {
            if (D->Version != 0)
-              DepVerSize += strlen(D.TargetVer()) + 1;
+              stritems.insert(D->Version);
+        }
+        for (pkgCache::DescIterator D = V.DescriptionList(); D.end() == false; ++D)
+        {
+           stritems.insert(D->md5sum);
+           stritems.insert(D->language_code);
         }
       }
+      for (pkgCache::PrvIterator Prv = P.ProvidesList(); Prv.end() == false; ++Prv)
+      {
+        if (Prv->ProvideVersion != 0)
+           stritems.insert(Prv->ProvideVersion);
+      }
    }
-   cout << _("Total dependency version space: ") << SizeToStr(DepVerSize) << endl;
+   for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); ++F)
+   {
+      stritems.insert(F->FileName);
+      stritems.insert(F->Archive);
+      stritems.insert(F->Codename);
+      stritems.insert(F->Component);
+      stritems.insert(F->Version);
+      stritems.insert(F->Origin);
+      stritems.insert(F->Label);
+      stritems.insert(F->Architecture);
+      stritems.insert(F->Site);
+      stritems.insert(F->IndexType);
+   }
+   unsigned long Size = 0;
+   for (std::set<map_stringitem_t>::const_iterator i = stritems.begin(); i != stritems.end(); ++i)
+      Size += strlen(Cache->StrP + *i) + 1;
+
+   cout << _("Total globbed strings: ") << stritems.size() << " (" << SizeToStr(Size) << ')' << endl;
+   stritems.clear();
 
    unsigned long Slack = 0;
    for (int I = 0; I != 7; I++)