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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_TRANSPORT_PUBLISHER_LINK_H 00029 #define ROSCPP_TRANSPORT_PUBLISHER_LINK_H 00030 00031 #include "common.h" 00032 #include "publisher_link.h" 00033 #include "connection.h" 00034 00035 namespace ros 00036 { 00037 class Header; 00038 class Message; 00039 class Subscription; 00040 typedef boost::shared_ptr<Subscription> SubscriptionPtr; 00041 typedef boost::weak_ptr<Subscription> SubscriptionWPtr; 00042 class Connection; 00043 typedef boost::shared_ptr<Connection> ConnectionPtr; 00044 00045 class WallTimerEvent; 00046 00051 class ROSCPP_DECL TransportPublisherLink : public PublisherLink 00052 { 00053 public: 00054 TransportPublisherLink(const SubscriptionPtr& parent, const std::string& xmlrpc_uri, const TransportHints& transport_hints); 00055 virtual ~TransportPublisherLink(); 00056 00057 // 00058 bool initialize(const ConnectionPtr& connection); 00059 00060 const ConnectionPtr& getConnection() { return connection_; } 00061 00062 virtual std::string getTransportType(); 00063 virtual void drop(); 00064 00065 private: 00066 void onConnectionDropped(const ConnectionPtr& conn, Connection::DropReason reason); 00067 bool onHeaderReceived(const ConnectionPtr& conn, const Header& header); 00068 00072 virtual void handleMessage(const SerializedMessage& m, bool ser, bool nocopy); 00073 00074 void onHeaderWritten(const ConnectionPtr& conn); 00075 void onMessageLength(const ConnectionPtr& conn, const boost::shared_array<uint8_t>& buffer, uint32_t size, bool success); 00076 void onMessage(const ConnectionPtr& conn, const boost::shared_array<uint8_t>& buffer, uint32_t size, bool success); 00077 00078 void onRetryTimer(const ros::WallTimerEvent&); 00079 00080 ConnectionPtr connection_; 00081 00082 int32_t retry_timer_handle_; 00083 bool needs_retry_; 00084 WallDuration retry_period_; 00085 WallTime next_retry_; 00086 bool dropping_; 00087 }; 00088 typedef boost::shared_ptr<TransportPublisherLink> TransportPublisherLinkPtr; 00089 00090 } // namespace ros 00091 00092 #endif // ROSCPP_TRANSPORT_PUBLISHER_LINK_H 00093 00094 00095