#ifndef ucoo_arch_host_mex_mex_node_hh #define ucoo_arch_host_mex_mex_node_hh // ucoolib - Microcontroller object oriented library. {{{ // // Copyright (C) 2012 Nicolas Schodet // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // // }}} #include "ucoo/common.hh" #include "mex_msg.hh" #include "mex_socket.hh" #include #include #include #include namespace ucoo { namespace mex { /// Mex node, singleton. class Node { public: /// Message handler type. typedef std::tr1::function Handler; public: /// Connect to mex hub. Node (); /// Wait forever. void wait (); /// Wait until date is reached. void wait (uint32_t date); /// Return current date. uint32_t date () const { return date_; } /// Send a message. void send (Msg &msg); /// Send a request and return response. std::auto_ptr request (Msg &msg); /// Send a response while handling a request. void response (Msg &msg); /// Reserve a message type. mtype_t reserve (const std::string &name); /// Register a handler for a message type. void handler_register (mtype_t mtype, Handler handler); /// Register a handler for a message type, member function version. template void handler_register (mtype_t mtype, T &obj, void (T::*handler) (Node &, Msg &)) { using namespace std::tr1::placeholders; handler_register (mtype, std::tr1::bind (handler, &obj, _1, _2)); } /// Register a handler for a message type, member function version, /// without Node parameter. template void handler_register (mtype_t mtype, T &obj, void (T::*handler) (Msg &)) { using namespace std::tr1::placeholders; handler_register (mtype, std::tr1::bind (handler, &obj, _2)); } private: /// Receive one message. std::auto_ptr recv (); /// Dispatch message to the right handler. void dispatch (Msg &msg); /// Handle an incomming DATE message. void handle_date (Msg &msg); /// Handle an incomming REQ message. void handle_req (Msg &msg); private: /// Connection to hub. Socket socket_; /// Current date. uint32_t date_; /// When handling a request, this is the request identifier, else -1. int req_; /// Registered handlers. typedef std::map Handlers; Handlers handlers_; }; } // namespace mex } // namespace ucoo #endif // ucoo_arch_host_mex_mex_node_hh