--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/apps/tca_admin/TcaRegistry.h	Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,68 @@
+/*
+ *    Copyright 2005-2006 University of Waterloo
+ * 
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ * 
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+
+#ifndef _TCA_REGISTRY_H_
+#define _TCA_REGISTRY_H_
+
+#include <netinet/in.h>
+#include <string>
+#include <vector>
+#include <rpc/rpc.h>
+
+
+
+class RegRecord
+{
+public:
+    RegRecord() : host_(), link_addr_() { }
+
+    RegRecord(const std::string& host, const std::string& link_addr)
+        : host_(host), link_addr_(link_addr) { }
+
+    std::string     host_;          // partial eid, eg.  "tca://host"
+    std::string     link_addr_;
+
+    const std::string str() const { return host_ + " -> " + link_addr_; }
+};
+
+
+
+class TcaRegistry
+{
+public:
+
+    TcaRegistry() : last_node_(0) { }
+
+    bool init_nodes();
+    bool init_addrs();
+
+    bool write(const RegRecord& rr, int ttl);
+    bool read(RegRecord& rr);
+
+protected:
+
+    std::vector<std::string> dht_nodes_;    // all available node names
+    std::vector<sockaddr_in> dht_addrs_;    // all available node addrs
+
+    unsigned int last_node_;                // index of last node used
+
+    CLIENT* get_node(); // get next available node, starting at cur_node_
+
+};
+
+
+#endif /* _TCA_REGISTRY_H_ */