Generalize how address space usage is reported from attribute vectors.

This prepares for reporting address space usage for more attribute vector components,
not only enum store and multi-value mapping.

2 files changed, 8 insertions, 0 deletions

diff --git a/vespalib/src/vespa/vespalib/util/address_space.cpp b/vespalib/src/vespa/vespalib/util/address_space.cpp
index 113e4ba1478..1f6874e3e2a 100644
--- a/vespalib/src/vespa/vespalib/util/address_space.cpp
+++ b/vespalib/src/vespa/vespalib/util/address_space.cpp
@@ -6,6 +6,13 @@
 
 namespace vespalib {
 
+AddressSpace::AddressSpace()
+    : _used(0),
+      _dead(0),
+      _limit(0)
+{
+}
+
 AddressSpace::AddressSpace(size_t used_, size_t dead_, size_t limit_)
     : _used(used_),
       _dead(dead_),
diff --git a/vespalib/src/vespa/vespalib/util/address_space.h b/vespalib/src/vespa/vespalib/util/address_space.h
index 98ffdac9599..8eb3ba811f9 100644
--- a/vespalib/src/vespa/vespalib/util/address_space.h
+++ b/vespalib/src/vespa/vespalib/util/address_space.h
@@ -18,6 +18,7 @@ private:
     size_t _limit;
 
 public:
+    AddressSpace();
     AddressSpace(size_t used_, size_t dead_, size_t limit_);
     size_t used() const { return _used; }
     size_t dead() const { return _dead; }