Summary
-------
A simple wrapper on top of Google's leveldb (https://code.google.com/p/leveldb) allowing different processes to access the same leveldb databases. The read and  write commands are send over ZeroMQ (http://www.zeromq.com), which allows IPC as well as TCP)

Example
-------
  zmq::context_t context(1);
  zmq::socket_t socket(context,ZMQ_REQ);

  std::vector<std::string> commands;
  commands.push_back("put,DCX1234,23456fev64g");
  commands.push_back("put,DCX1235,rgine5-8u3");
  commands.push_back("put,DCX1234,second key");
  commands.push_back("get,DCX1234");
  commands.push_back("get,DCX1235");
  commands.push_back("get,DCX0000");

  socket.connect("ipc://test.ipc");

  for(int i=0;i<commands.size();i++) {

    const std::string& command = commands[i];
    zmq::message_t request(command.size());
    memcpy((void*)request.data(),command.data(),command.size());
    std::cout << "sending command " << std::string((char*)request.data(),request.size()) << std::endl;
    socket.send(request);

    zmq::message_t reply;
    socket.recv(&reply);
    std::cout << "received        " << std::string((char*)reply.data(),reply.size()) << std::endl;
 

Future extensions
-----------------
Batched commands

Requirements
------------
leveldb and ZeroMQ libraries