00001 /* 00002 * Software License Agreement (BSD License) 00003 * 00004 * Copyright (c) 2011, Willow Garage, Inc. 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * * Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * * Redistributions in binary form must reproduce the above 00014 * copyright notice, this list of conditions and the following 00015 * disclaimer in the documentation and/or other materials provided 00016 * with the distribution. 00017 * * Neither the name of Willow Garage, Inc. nor the names of its 00018 * contributors may be used to endorse or promote prducts derived 00019 * from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00022 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00023 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00024 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 00025 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00026 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00027 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00028 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00029 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 00031 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00032 * POSSIBILITY OF SUCH DAMAGE. 00033 */ 00034 00035 #ifndef ROS_SUBSCRIBER_H_ 00036 #define ROS_SUBSCRIBER_H_ 00037 00038 #include "rosserial_ids.h" 00039 #include "msg_receiver.h" 00040 00041 namespace ros { 00042 00043 /* ROS Subscriber 00044 * This class handles holding the msg so that 00045 * it is not continously reallocated. It is also used by the 00046 * node handle to keep track of callback functions and IDs. 00047 */ 00048 template<typename MsgT> 00049 class Subscriber: public MsgReceiver{ 00050 public: 00051 typedef void(*CallbackT)(const MsgT&); 00052 MsgT msg; 00053 00054 Subscriber(const char * topic_name, CallbackT msgCB){ 00055 topic_ = topic_name; 00056 cb_= msgCB; 00057 } 00058 00059 virtual void receive(unsigned char* data){ 00060 msg.deserialize(data); 00061 this->cb_(msg); 00062 } 00063 00064 virtual const char * getMsgType(){return this->msg.getType();} 00065 virtual int _getType(){return TOPIC_SUBSCRIBERS;} 00066 00067 private: 00068 CallbackT cb_; 00069 }; 00070 00071 } 00072 00073 #endif