X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=ref.h;fp=ref.h;h=7ed7ff044366a6a379dec641d3cbd59c2aee4188;hb=0ac19625c9ad293791b93c931331aa5a0c876f36;hp=cc21a5a0c8f7783b159acf5d9fb52e6bcd9a425b;hpb=8df26e030a903119ee367ce30a49fc4adf3a74c7;p=cumulus.git

diff --git a/ref.h b/ref.h
index cc21a5a..7ed7ff0 100644
--- a/ref.h
+++ b/ref.h
@@ -68,6 +68,7 @@ public:
     ObjectReference(const std::string& segment, int sequence);
     ObjectReference(const std::string& segment, const std::string& sequence);
 
+    bool is_null() { return segment.size() == 0; }
     std::string to_string() const;
     static ObjectReference *parse(const std::string& s);
 
@@ -88,6 +89,8 @@ public:
     void set_range(size_t start, size_t length)
         { range_start = start; range_length = length; range_valid = true; }
 
+    bool merge(ObjectReference ref);
+
 private:
     std::string segment, object, checksum;
     size_t range_start, range_length;