1 | /* -*-c++-*- osgVisual - Copyright (C) 2009-2010 Torben Dannhauer |
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2 | * |
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3 | * This library is based on OpenSceneGraph, open source and may be redistributed and/or modified under |
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4 | * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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5 | * (at your option) any later version. The full license is in LICENSE file |
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6 | * included with this distribution, and on the openscenegraph.org website. |
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7 | * |
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8 | * osgVisual requires for some proprietary modules a license from the correspondig manufacturer. |
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9 | * You have to aquire licenses for all used proprietary modules. |
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10 | * |
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11 | * This library is distributed in the hope that it will be useful, |
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | * OpenSceneGraph Public License for more details. |
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15 | */ |
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16 | |
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17 | #include "dataIO_clusterENet.h" |
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18 | |
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19 | using namespace osgVisual; |
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20 | |
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21 | dataIO_clusterENet::dataIO_clusterENet() |
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22 | { |
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23 | OSG_NOTIFY( osg::ALWAYS ) << "clusterENet constructed" << std::endl; |
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24 | |
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25 | serverToConnect = "unknown"; |
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26 | hardSync = false; // integrate into init() |
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27 | port = 12345; // integrate into init() |
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28 | } |
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29 | |
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30 | |
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31 | dataIO_clusterENet::~dataIO_clusterENet(void) |
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32 | { |
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33 | OSG_NOTIFY( osg::ALWAYS ) << "clusterENet destructed" << std::endl; |
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34 | } |
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35 | |
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36 | |
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37 | bool dataIO_clusterENet::init(xmlNode* configurationNode, osgViewer::Viewer* viewer_, clustermode clusterMode_, osgVisual::dataIO_transportContainer* sendContainer_, bool asAscii_) |
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38 | { |
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39 | if (!configurationNode || !processXMLConfiguration(configurationNode)) |
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40 | return false; |
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41 | |
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42 | OSG_NOTIFY( osg::ALWAYS ) << "clusterENet init();" << std::endl; |
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43 | |
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44 | // Store viewer |
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45 | viewer = viewer_; |
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46 | |
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47 | // Configure the clustermode |
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48 | clusterMode = clusterMode_; |
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49 | |
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50 | // store sendContainer |
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51 | sendContainer = sendContainer_; |
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52 | |
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53 | // Configure Compression and instantiate read/write-options |
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54 | std::string readOptionString = ""; |
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55 | std::string writeOptionString = ""; |
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56 | if(asAscii_) |
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57 | { |
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58 | readOptionString = "Ascii"; |
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59 | writeOptionString = "Ascii"; |
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60 | } |
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61 | if (compressionEnabled) |
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62 | writeOptionString+=" Compressor=zlib"; |
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63 | readOptions = new osgDB::Options( readOptionString.c_str() ); |
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64 | writeOptions = new osgDB::Options( writeOptionString.c_str() ); |
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65 | |
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66 | // Get ReaderWriter |
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67 | rw = osgDB::Registry::instance()->getReaderWriterForExtension("osgb"); |
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68 | |
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69 | // create ENet implementation object. |
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70 | enet_impl = new osgVisual::dataIO_clusterENet_implementation(receivedTransportContainer); |
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71 | |
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72 | // initialize ENet implementation |
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73 | if(clusterMode == MASTER) |
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74 | { |
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75 | std::cout << "Init dataIO_cluster_ENet as Server on port " << port << std::endl; |
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76 | enet_impl->init(dataIO_clusterENet_implementation::SERVER, port); |
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77 | |
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78 | initialized = true; |
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79 | } |
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80 | if(clusterMode == SLAVE) |
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81 | { |
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82 | // Init ENet |
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83 | enet_impl->init(dataIO_clusterENet_implementation::CLIENT, port); |
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84 | |
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85 | // Connect to server with 5 retries: |
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86 | bool connected = false; |
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87 | for(int i=0; i<5; i++) |
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88 | { |
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89 | std::cout << "Try to connect to server " << serverToConnect << std::endl; |
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90 | if( enet_impl->connectTo( serverToConnect.c_str(), 5000 ) ) |
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91 | { |
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92 | // Connect successful. |
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93 | initialized = true; |
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94 | connected = true; |
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95 | break; |
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96 | } |
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97 | } // For END |
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98 | if(!connected) |
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99 | { |
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100 | initialized = false; |
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101 | std::cout << "Finally failed to establish connection to server " << serverToConnect << std::endl; |
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102 | return false; |
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103 | } |
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104 | } // IF SLAVE END |
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105 | |
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106 | return true; |
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107 | } |
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108 | |
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109 | bool dataIO_clusterENet::processXMLConfiguration(xmlNode* clusterConfig_) |
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110 | { |
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111 | // Extract cluster role |
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112 | xmlAttr *attr = clusterConfig_->properties; |
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113 | while ( attr ) |
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114 | { |
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115 | std::string attr_name=reinterpret_cast<const char*>(attr->name); |
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116 | std::string attr_value=reinterpret_cast<const char*>(attr->children->content); |
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117 | if( attr_name == "implementation" ) |
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118 | { |
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119 | if(attr_value != "enet") |
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120 | { |
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121 | OSG_NOTIFY( osg::ALWAYS ) << "WARNING: Cluster configuration does not match the currently used 'enet' implementation, falling back to clusterDummy" << std::endl; |
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122 | return false; |
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123 | } |
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124 | } |
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125 | if( attr_name == "hardsync" ) |
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126 | { |
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127 | if(attr_value == "yes") |
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128 | hardSync = true; |
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129 | else |
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130 | hardSync = false; |
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131 | } |
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132 | if( attr_name == "master_ip" ) |
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133 | { |
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134 | serverToConnect = attr_value; |
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135 | } |
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136 | if( attr_name == "port" ) |
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137 | { |
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138 | std::istringstream i(attr_value); |
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139 | if (!(i >> port)) |
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140 | { |
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141 | OSG_NOTIFY( osg::ALWAYS ) << "WARNING: Cluster configuration : Invalid port number '" << attr_value << "', falling back to clusterDummy" << std::endl; |
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142 | return false; |
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143 | } |
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144 | } |
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145 | if( attr_name == "use_zlib_compressor" ) |
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146 | { |
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147 | if(attr_value == "yes") |
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148 | compressionEnabled = true; |
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149 | else |
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150 | compressionEnabled = false; |
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151 | } |
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152 | attr = attr->next; |
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153 | } // WHILE attrib END |
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154 | |
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155 | return true; |
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156 | } |
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157 | |
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158 | |
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159 | void dataIO_clusterENet::shutdown() |
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160 | { |
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161 | OSG_NOTIFY( osg::ALWAYS ) << "clusterENet shutdown();" << std::endl; |
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162 | } |
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163 | |
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164 | |
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165 | bool dataIO_clusterENet::sendTO_OBJvaluesToSlaves(osg::Matrixd viewMatrix_) |
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166 | { |
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167 | //OSG_NOTIFY( osg::ALWAYS ) << "clusterENet sendTO_OBJvaluesToSlaves()" << std::endl; |
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168 | |
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169 | if(sendContainer.valid()) |
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170 | { |
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171 | // Pack FrameID & Viewmatrix |
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172 | sendContainer->setFrameID(viewer->getFrameStamp()->getFrameNumber()); |
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173 | sendContainer->setViewMatrix(viewMatrix_); |
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174 | |
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175 | // Writing node to stream |
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176 | std::stringstream myOstream; |
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177 | if ( rw ) |
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178 | { |
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179 | osgDB::ReaderWriter::WriteResult wr = rw->writeObject( *sendContainer.get(), myOstream, writeOptions ); |
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180 | if (wr.success() ) |
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181 | { |
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182 | // Send Data via ENet: |
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183 | //OSG_NOTIFY( osg::ALWAYS ) << "dataIO_clusterUDP::sendTO_OBJvaluesToSlaves() - Bytes to send: " << myOstream.str().length() << std::endl; |
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184 | //OSG_NOTIFY( osg::ALWAYS ) << "Send: " << myOstream.str() << std::endl; |
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185 | //OSG_NOTIFY( osg::ALWAYS ) << "Sent Framenumber: " << viewer->getFrameStamp()->getFrameNumber() << std::endl; |
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186 | ENetPacket * packet = enet_packet_create (myOstream.str().c_str(), |
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187 | myOstream.str().size(), |
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188 | ENET_PACKET_FLAG_RELIABLE); |
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189 | |
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190 | // Send data |
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191 | enet_impl->sendPacket( packet, 0, 0, true); |
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192 | } |
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193 | else OSG_NOTIFY( osg::WARN ) << "ERROR: dataIO_clusterENet::sendTO_OBJvaluesToSlaves() :: Save failed: " << wr.message() << std::endl; |
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194 | } |
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195 | else OSG_NOTIFY( osg::WARN ) << "ERROR: dataIO_clusterENet::sendTO_OBJvaluesToSlaves() :: Unable to get readerWriter for osgb" << std::endl; |
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196 | } |
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197 | else OSG_NOTIFY( osg::WARN ) << "ERROR: dataIO_clusterENet::sendTO_OBJvaluesToSlaves() :: Invalid transportContainer" << std::endl; |
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198 | |
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199 | |
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200 | enet_impl->processEvents(); // As Master: process events AFTER doing anything to have up to have the "sent" commands in queue. |
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201 | return true; |
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202 | } |
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203 | |
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204 | |
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205 | bool dataIO_clusterENet::readTO_OBJvaluesFromMaster() |
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206 | { |
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207 | //OSG_NOTIFY( osg::ALWAYS ) << "clusterENet readTO_OBJvaluesFromMaster()" << std::endl; |
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208 | enet_impl->processEvents(); // As Slave: process events BEFORE doing anything to have up to date values. |
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209 | |
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210 | int bytes_received = receivedTransportContainer.size(); |
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211 | if (bytes_received > 0 ) |
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212 | { |
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213 | //OSG_NOTIFY( osg::ALWAYS ) << "dataIO_clusterENet::readTO_OBJvaluesFromMaster() - Bytes received: " << bytes_received << std::endl; |
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214 | //OSG_NOTIFY( osg::ALWAYS ) << "Received: " << std::endl << receivedTransportContainer << std::endl; |
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215 | |
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216 | |
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217 | // Unserialize data |
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218 | if ( rw ) |
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219 | { |
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220 | std::stringstream tmp; |
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221 | tmp << receivedTransportContainer; |
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222 | osgDB::ReaderWriter::ReadResult rr = rw->readObject( tmp, readOptions ); |
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223 | if (rr.success()) |
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224 | { |
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225 | sendContainer = dynamic_cast<osgVisual::dataIO_transportContainer*>(rr.takeObject()); |
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226 | if (sendContainer) |
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227 | { |
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228 | OSG_NOTIFY( osg::ALWAYS ) << "Received:: Settings Viewmatrix...FrameID is: " << sendContainer->getFrameID() << std::endl; |
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229 | // Restore Viewmatrix |
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230 | viewer->getCamera()->setViewMatrix(sendContainer->getViewMatrix()); |
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231 | } |
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232 | else |
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233 | OSG_NOTIFY( osg::WARN ) << "ERROR: dataIO_clusterENet::readTO_OBJvaluesFromMaster() - Unable to cast converted node to transportContainer" << std::endl; |
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234 | } |
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235 | else |
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236 | OSG_NOTIFY( osg::WARN ) << "ERROR: dataIO_clusterENet::readTO_OBJvaluesFromMaster() - Unable to convert stream to node" << std::endl; |
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237 | } |
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238 | else |
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239 | OSG_NOTIFY( osg::WARN ) << "ERROR: dataIO_clusterENet::readTO_OBJvaluesFromMaster() - Unable to get readerWriter for osgb" << std::endl; |
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240 | } // IF bytes recv > 0 END |
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241 | |
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242 | |
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243 | |
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244 | return true; |
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245 | } |
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246 | |
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247 | |
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248 | void dataIO_clusterENet::reportAsReadyToSwap() |
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249 | { |
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250 | if(!hardSync) |
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251 | return; |
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252 | |
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253 | OSG_NOTIFY( osg::ALWAYS ) << "clusterENet reportAsReadyToSwap()" << std::endl; |
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254 | } |
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255 | |
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256 | bool dataIO_clusterENet::waitForSwap() |
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257 | { |
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258 | if(!hardSync) |
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259 | return true; |
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260 | |
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261 | OSG_NOTIFY( osg::ALWAYS ) << "clusterENet waitForSwap()" << std::endl; |
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262 | |
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263 | return true; |
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264 | } |
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265 | |
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266 | |
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267 | bool dataIO_clusterENet::waitForAllReadyToSwap() |
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268 | { |
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269 | if(!hardSync) |
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270 | return true; |
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271 | |
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272 | OSG_NOTIFY( osg::ALWAYS ) << "clusterENet waitForAllReadyToSwap()" << std::endl; |
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273 | |
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274 | return true; |
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275 | } |
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276 | |
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277 | |
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278 | bool dataIO_clusterENet::sendSwapCommand() |
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279 | { |
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280 | if(!hardSync) |
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281 | return true; |
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282 | |
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283 | OSG_NOTIFY( osg::ALWAYS ) << "clusterENet sendSwapCommand()" << std::endl; |
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284 | |
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285 | return true; |
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286 | } |
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