basic framework, waiting for Alex's comments
diff --git a/tools/Resolver.cpp b/tools/Resolver.cpp
new file mode 100644
index 0000000..a64a184
--- /dev/null
+++ b/tools/Resolver.cpp
@@ -0,0 +1,229 @@
+/*
+ * myping.cc
+ *
+ * Created on: 21 Jun, 2014
+ * Author: shock
+ */
+
+#include <boost/noncopyable.hpp>
+#include <boost/asio.hpp>
+#include <ndn-cxx/face.hpp>
+#include <ndn-cxx/name.hpp>
+#include <ndn-cxx/interest.hpp>
+#include <ndn-cxx/selectors.hpp>
+
+#include <query.h>
+#include <rr.h>
+
+#include <unistd.h>
+#include <stdlib.h> //atoi
+
+
+
+#include <map>
+#include <vector>
+#include <sstream>
+
+//using std::cout;
+//using std::cin;
+//using std::cerr;
+//using std::endl;
+//using std::map;
+//using std::vector;
+//using std::exception;
+//using std::pair;
+//using std::string;
+
+using namespace std;
+
+namespace ndn{
+
+
+class Resolver : boost::noncopyable
+{
+
+ class RequestInfo
+ {
+ public:
+ RequestInfo(unsigned long seq)
+ : m_seq(seq)
+ {
+ }
+
+ void
+ SendInterest()
+ {
+ //m_sentT = time::system_clock::now();
+ }
+ void
+ GetData()
+ {
+ //this->m_receT = time::system_clock::now();
+ }
+
+ string
+ toString()
+ {
+ stringstream str;
+ str<<"m_seq="<<m_seq;
+ //s +="m_seq="+m_seq+" m_sentT="+" m_receT=";
+ return str.str();
+ }
+
+ public:
+ unsigned long m_seq;
+ time::milliseconds m_sentT;
+ time::milliseconds m_receT;
+ };
+
+public:
+Resolver(char *programName, char *scope, char *domain)
+: m_programName (programName)
+, m_authorityZone (scope)
+, m_rrLabel(domain)
+, m_interestLifetime (time::milliseconds(4000))
+, m_face (m_ioService)
+{
+ cout<<"Create "<<m_programName<<endl;
+}
+
+void
+onInterest(const Name &name, const Interest &interest)
+{
+
+ cout<<"-> Interest: "<<name<<std::endl;
+
+}
+void
+onData(const ndn::Interest& interest, Data& data)
+{
+ Response response(data);
+ response
+}
+void
+onTimeout(const ndn::Interest& interest)
+{
+ cout<<"!- Interest Timeout"<<interest.getName()<<endl;
+ Name iName = interest.getName();
+ unsigned long seq = (unsigned long)iName.get(iName.size()-1).toNumber();
+
+ this->tryExpress();
+
+
+}
+
+
+void
+doExpress(Interest interest)
+{
+ m_face.expressInterest(interest, boost::bind(&onData, this, _1, _2),
+ boost::bind(&onTimeout, this, _1));
+}
+
+void
+tryExpress()
+{
+
+ this->doExpress();
+
+}
+
+
+void
+singalHandler()
+{
+ this->stop();
+}
+
+void
+stop()
+{
+ cout<<"resolve stops"<<endl;
+ this->m_face.shutdown();
+ this->m_ioService.stop();
+}
+
+void
+run()
+{
+
+ boost::asio::signal_set signalSet(m_ioService, SIGINT, SIGTERM);
+ signalSet.async_wait(boost::bind(&singalHandler, this));
+
+ this->m_query.setAuthorityZone(this->m_authorityZone);
+ this->m_query.setRrLabel(this->m_rrLabel);
+ this->m_query.setRrType(RRType::NS);
+
+ Interest interest = m_query.toWire();
+ this->doExpress(interest);
+
+ try{
+ m_face.processEvents();
+ } catch (exception &e){
+ cerr<<"Error: "<<e.what()<<endl;
+ this->stop();
+ }
+
+}
+
+
+void
+resolve()
+{
+
+}
+
+
+private:
+ char *m_programName;
+ Name m_authorityZone;
+ Name m_rrLabel;
+ //Name m_name;
+ time::milliseconds m_interestLifetime;
+
+
+ Query m_query;
+
+ boost::asio::io_service m_ioService;
+ //This line MUST be before m_face declaration, or leads to segment error: 11
+
+ Face m_face;
+
+
+};//class MyPing
+
+}//namespace
+
+
+void
+usage()
+{
+ cout<<"-h to show the hint"<<endl;
+}
+
+int
+main(int argc, char *argv[])
+{
+
+ if (argc < 2)
+ {
+ cout<<"You must have at least one parameter: resolve domain [scope]"<<endl;
+ return 0;
+ }
+
+
+ char * domain = argv[1];
+ char * scope;
+ if (argc == 3)
+ scope = argv[2];
+ else
+ scope = "/";
+
+
+ ndn::Resolver resolver(argv[0], scope, domain);
+ resolver.run();
+
+ return 0;
+}//main
+
+