Changeset 530

Timestamp:

Dec 25, 2007, 2:59:58 PM (15 years ago)

Author:

Peter Johansson

Message:

For large projects, i.e. many files and many contributors, the statistics is typically not changing between tow revisisions for a specific file and author. Therefore, we are caching the 'differentiated' stats instead. This will be sparse (contain mostly zeros) so we can use a sparse notation and typically save disc space i.e. read/write time.

Location:

trunk/lib

Files:

• Stats.cc (modified) (2 diffs)
• Stats.h (modified) (1 diff)

trunk/lib/Stats.cc

@@ -179 +179 @@
         continue;
       std::vector<u_int>& vec=m[name];
-      size_t revs=0;
-      is >> revs;
-      vec.reserve(revs);
-      while (vec.size() < revs && is.good()) {
-        u_int tmp;
-        is >> tmp;
-        vec.push_back(tmp);
+      svn_revnum_t rev=0;
+      while (rev < last_changed_rev() && is.good()) {
+        u_int count;
+        is >> count;
+        if ( rev+1 > static_cast<svn_revnum_t>(vec.size()) )
+        vec.resize(rev+1);
+        vec[rev] = count;
+        is >> rev;
       }
     }
@@ -413 +414 @@
     for (A2VConstIter i(m.begin()); i!=m.end(); ++i){
       os << i->first << "\n";
-      os << i->second.size() << " ";
-      std::copy(i->second.begin(), i->second.end(),
-                std::ostream_iterator<u_int>(os, " "));
+      os << i->second.front() << " ";
+      for (size_t j=1; j<i->second.size(); ++j)
+        if (i->second[j] != i->second[j-1])
+          os << j << " " << i->second[j] - i->second[j-1] << " ";
+      os << last_changed_rev()+1 << " ";
     }
   }

trunk/lib/Stats.h

@@ -169 +169 @@
     // that all old cache files are obsolete.
     inline std::string end_of_cache(void) const 
-    {return "END OF OK CACHE FILE VERSION 2";} 
+    {return "END OF OK CACHE FILE VERSION 3";} 
     inline std::string code_cache(void) const {return "CACHE CODE";} 
     inline std::string comments_cache(void) const {return "CACHE COMMENTS";}