1 files changed, 83 insertions, 0 deletions
diff --git a/cpp/src/Freeze/SharedDb.h b/cpp/src/Freeze/SharedDb.h
new file mode 100644
index 00000000000..52da8e4010c
--- /dev/null
+++ b/cpp/src/Freeze/SharedDb.h
@@ -0,0 +1,83 @@
+// **********************************************************************
+//
+// Copyright (c) 2003
+// ZeroC, Inc.
+// Billerica, MA, USA
+//
+// All Rights Reserved.
+//
+// Ice is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License version 2 as published by
+// the Free Software Foundation.
+//
+// **********************************************************************
+
+#ifndef FREEZE_SHARED_DB_H
+#define FREEZE_SHARED_DB_H
+
+#include <Freeze/ConnectionI.h>
+#include <IceUtil/Handle.h>
+#include <db_cxx.h>
+#include <map>
+
+namespace Freeze
+{
+
+class SharedDb;
+typedef IceUtil::Handle<SharedDb> SharedDbPtr;
+
+class SharedDb : public ::Db
+{
+public:
+    
+    using ::Db::get;
+
+    static SharedDbPtr get(const ConnectionIPtr&, const std::string&, bool);
+
+    ~SharedDb();
+
+    void __incRef();
+    void __decRef();
+
+    const std::string& 
+    dbName() const;
+
+private:
+
+    struct MapKey
+    {
+	std::string envName;
+	Ice::CommunicatorPtr communicator;
+	std::string dbName;
+
+	inline bool
+	operator<(const MapKey& rhs) const;
+    };
+
+    typedef std::map<MapKey, Freeze::SharedDb*> Map;
+   
+    SharedDb(const MapKey&, const ConnectionIPtr&, bool);
+    
+    MapKey _key;
+    int _refCount;
+    int _trace;
+
+    static Map* sharedDbMap;
+};
+
+inline const std::string& 
+SharedDb::dbName() const
+{
+    return _key.dbName;
+}
+
+inline bool 
+SharedDb::MapKey::operator<(const MapKey& rhs) const
+{
+    return (communicator < rhs.communicator) ||
+	((communicator == rhs.communicator) && (dbName < rhs.dbName)) ||
+	((communicator == rhs.communicator) && (dbName == rhs.dbName) && (envName < rhs.envName));
+}
+    
+}
+#endif