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00001 /* 00002 * Software License Agreement (BSD License) 00003 * 00004 * Copyright (c) 2008, 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 products 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 ROSCPP_TRANSPORT_TCP_H 00036 #define ROSCPP_TRANSPORT_TCP_H 00037 00038 #include <ros/types.h> 00039 #include <ros/transport/transport.h> 00040 00041 #include <boost/thread/recursive_mutex.hpp> 00042 #include "ros/io.h" 00043 #include "../common.h" 00044 00045 namespace ros 00046 { 00047 00048 class TransportTCP; 00049 typedef boost::shared_ptr<TransportTCP> TransportTCPPtr; 00050 00051 class PollSet; 00052 00056 class ROSCPP_DECL TransportTCP : public Transport 00057 { 00058 public: 00059 static bool s_use_keepalive_; 00060 00061 public: 00062 enum Flags 00063 { 00064 SYNCHRONOUS = 1<<0, 00065 }; 00066 00067 TransportTCP(PollSet* poll_set, int flags = 0); 00068 virtual ~TransportTCP(); 00069 00076 bool connect(const std::string& host, int port); 00077 00081 std::string getClientURI(); 00082 00083 typedef boost::function<void(const TransportTCPPtr&)> AcceptCallback; 00090 bool listen(int port, int backlog, const AcceptCallback& accept_cb); 00094 TransportTCPPtr accept(); 00098 int getServerPort() { return server_port_; } 00099 00100 void setNoDelay(bool nodelay); 00101 void setKeepAlive(bool use, uint32_t idle, uint32_t interval, uint32_t count); 00102 00103 const std::string& getConnectedHost() { return connected_host_; } 00104 int getConnectedPort() { return connected_port_; } 00105 00106 // overrides from Transport 00107 virtual int32_t read(uint8_t* buffer, uint32_t size); 00108 virtual int32_t write(uint8_t* buffer, uint32_t size); 00109 00110 virtual void enableWrite(); 00111 virtual void disableWrite(); 00112 virtual void enableRead(); 00113 virtual void disableRead(); 00114 00115 virtual void close(); 00116 00117 virtual std::string getTransportInfo(); 00118 00119 virtual void parseHeader(const Header& header); 00120 00121 virtual const char* getType() { return "TCPROS"; } 00122 00123 private: 00127 bool initializeSocket(); 00128 00129 bool setNonBlocking(); 00130 00136 bool setSocket(int sock); 00137 00138 void socketUpdate(int events); 00139 00140 socket_fd_t sock_; 00141 bool closed_; 00142 boost::recursive_mutex close_mutex_; 00143 00144 bool expecting_read_; 00145 bool expecting_write_; 00146 00147 bool is_server_; 00148 sockaddr_in server_address_; 00149 int server_port_; 00150 AcceptCallback accept_cb_; 00151 00152 std::string cached_remote_host_; 00153 00154 PollSet* poll_set_; 00155 int flags_; 00156 00157 std::string connected_host_; 00158 int connected_port_; 00159 }; 00160 00161 } 00162 00163 #endif // ROSCPP_TRANSPORT_TCP_H 00164