00001 /* 00002 * Copyright (C) 2008, Morgan Quigley and Willow Garage, Inc. 00003 * 00004 * Redistribution and use in source and binary forms, with or without 00005 * modification, are permitted provided that the following conditions are met: 00006 * * Redistributions of source code must retain the above copyright notice, 00007 * this list of conditions and the following disclaimer. 00008 * * Redistributions in binary form must reproduce the above copyright 00009 * notice, this list of conditions and the following disclaimer in the 00010 * documentation and/or other materials provided with the distribution. 00011 * * Neither the names of Stanford University or Willow Garage, Inc. nor the names of its 00012 * contributors may be used to endorse or promote products derived from 00013 * this software without specific prior written permission. 00014 * 00015 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00016 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00017 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00018 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00019 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00020 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00021 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00022 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00023 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00024 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00025 * POSSIBILITY OF SUCH DAMAGE. 00026 */ 00027 00028 #ifndef ROSCPP_SERVICE_CLIENT_LINK_H 00029 #define ROSCPP_SERVICE_CLIENT_LINK_H 00030 00031 #include "ros/common.h" 00032 00033 #include <boost/thread/mutex.hpp> 00034 #include <boost/shared_array.hpp> 00035 #include <boost/enable_shared_from_this.hpp> 00036 #include <boost/signals/connection.hpp> 00037 00038 #include <queue> 00039 00040 namespace ros 00041 { 00042 class Header; 00043 class ServicePublication; 00044 typedef boost::weak_ptr<ServicePublication> ServicePublicationWPtr; 00045 typedef boost::shared_ptr<ServicePublication> ServicePublicationPtr; 00046 class Connection; 00047 typedef boost::shared_ptr<Connection> ConnectionPtr; 00048 00052 class ServiceClientLink : public boost::enable_shared_from_this<ServiceClientLink> 00053 { 00054 public: 00055 ServiceClientLink(); 00056 virtual ~ServiceClientLink(); 00057 00058 // 00059 bool initialize(const ConnectionPtr& connection); 00060 bool handleHeader(const Header& header); 00061 00067 void processResponse(bool ok, const SerializedMessage& res); 00068 00069 const ConnectionPtr& getConnection() { return connection_; } 00070 00071 private: 00072 void onConnectionDropped(const ConnectionPtr& conn); 00073 00074 void onHeaderWritten(const ConnectionPtr& conn); 00075 void onRequestLength(const ConnectionPtr& conn, const boost::shared_array<uint8_t>& buffer, uint32_t size, bool success); 00076 void onRequest(const ConnectionPtr& conn, const boost::shared_array<uint8_t>& buffer, uint32_t size, bool success); 00077 void onResponseWritten(const ConnectionPtr& conn); 00078 00079 ConnectionPtr connection_; 00080 ServicePublicationWPtr parent_; 00081 bool persistent_; 00082 boost::signals::connection dropped_conn_; 00083 }; 00084 typedef boost::shared_ptr<ServiceClientLink> ServiceClientLinkPtr; 00085 00086 } // namespace ros 00087 00088 #endif // ROSCPP_PUBLISHER_DATA_HANDLER_H 00089 00090 00091