1 | /* Virginia Tech Cognitive Radio Open Source Systems |
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2 | * Virginia Tech, 2009 |
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3 | * |
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4 | * LICENSE INFORMATION GOES HERE |
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5 | */ |
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6 | |
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7 | /* DESCRIPTION OF FILE. |
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8 | */ |
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9 | |
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10 | |
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11 | #include <cstdlib> |
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12 | #include <cstring> |
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13 | #include <stdint.h> |
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14 | |
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15 | #include "vtcross/common.h" |
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16 | #include "vtcross/components.h" |
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17 | #include "vtcross/containers.h" |
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18 | #include "vtcross/debug.h" |
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19 | #include "vtcross/error.h" |
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20 | #include "vtcross/socketcomm.h" |
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21 | |
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22 | |
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23 | CognitiveEngine::CognitiveEngine() |
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24 | { |
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25 | LOG("Creating Cognitive Engine.\n"); |
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26 | SML_present = false; |
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27 | commandSocketFD = -1; |
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28 | } |
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29 | |
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30 | |
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31 | CognitiveEngine::~CognitiveEngine() |
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32 | { |
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33 | delete [] pList; |
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34 | delete [] oList; |
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35 | delete [] uList; |
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36 | delete [] radioInfo; |
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37 | } |
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38 | |
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39 | |
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40 | CognitiveEngine::CognitiveEngine(const char* serverName, const char* serverPort, \ |
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41 | const bool SML) |
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42 | { |
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43 | LOG("Creating Cognitive Engine.\n"); |
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44 | |
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45 | pList = new Parameter[10]; |
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46 | oList = new Observable[10]; |
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47 | uList = new Utility[10]; |
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48 | radioInfo = new Radio_Info; |
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49 | |
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50 | ConnectToRemoteComponent(serverName, serverPort, SML); |
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51 | } |
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52 | |
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53 | |
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54 | void |
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55 | CognitiveEngine::SendComponentType() |
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56 | { |
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57 | SendMessage(commandSocketFD, "response_engine_cognitive"); |
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58 | LOG("Cognitive Engine responded to GetRemoteComponentType query.\n"); |
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59 | } |
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60 | |
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61 | |
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62 | void |
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63 | CognitiveEngine::ConnectToRemoteComponent(const char* serverName, \ |
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64 | const char* serverPort, const bool SML) |
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65 | { |
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66 | commandSocketFD = ClientSocket(serverName, serverPort); |
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67 | |
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68 | SML_present = SML; |
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69 | |
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70 | if(SML) { |
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71 | RegisterComponent(); |
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72 | RegisterServices(); |
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73 | LOG("Cognitive Engine connected to SML at %s.\n", serverName); |
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74 | ReceiveRadioConfiguration(); |
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75 | ReceiveExperience(); |
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76 | } |
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77 | else { |
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78 | RegisterComponent(); |
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79 | LOG("Cognitive Engine connected to shell at %s.\n", serverName); |
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80 | ReceiveRadioConfiguration(); |
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81 | ReceiveExperience(); |
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82 | } |
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83 | } |
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84 | |
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85 | |
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86 | void |
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87 | CognitiveEngine::WaitForSignal() |
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88 | { |
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89 | char buffer[256]; |
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90 | uint16_t i; |
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91 | |
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92 | while(true) { |
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93 | memset(buffer, 0, 256); |
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94 | |
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95 | ReadMessage(commandSocketFD, buffer); |
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96 | |
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97 | // TODO this is ugly... is there a better way? Doesn't strcmp compare the |
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98 | // whole string? We only need to compare until we find a single different |
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99 | // byte... |
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100 | // |
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101 | // If we send integer op codes rather than strings, this process will be |
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102 | // MUCH faster since instead of donig string compares we can simply |
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103 | // switch on the integer value... |
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104 | if(strcmp(buffer, "get_solution") == 0) { |
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105 | |
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106 | /* Receive Set of Observables */ |
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107 | LOG("Cognitive Engine:: Receiving observables.\n"); |
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108 | |
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109 | memset(buffer, 0, 256); |
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110 | ReadMessage(commandSocketFD,buffer); |
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111 | uint32_t numObservables = atoi(buffer); |
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112 | |
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113 | Observable * o = new Observable[numObservables]; |
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114 | |
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115 | for (i = 0; i < numObservables; i++){ |
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116 | memset(buffer, 0, 256); |
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117 | ReadMessage(commandSocketFD,buffer); |
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118 | o[i].name = std::string(buffer); |
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119 | |
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120 | memset(buffer, 0, 256); |
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121 | ReadMessage(commandSocketFD,buffer); |
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122 | o[i].value = atof(buffer); |
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123 | } |
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124 | |
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125 | LOG("Cognitive Engine:: Sending Optimal Parameters.\n"); |
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126 | SendMessage(commandSocketFD,"1"); |
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127 | SendMessage(commandSocketFD,"txPower"); |
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128 | SendMessage(commandSocketFD,"10"); |
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129 | } |
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130 | else if(strcmp(buffer, "query_component_type") == 0) { |
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131 | SendComponentType(); |
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132 | } |
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133 | else if(strcmp(buffer, "connect_sml") == 0) { |
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134 | /* This command implies that we are disconnecting from the shell and |
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135 | * connecting to a SML component. */ |
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136 | char serverName[256]; |
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137 | char serverPort[256]; |
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138 | // TODO is this going to end up being too slow? |
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139 | memset(serverName, 0, 256); |
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140 | memset(serverPort, 0, 256); |
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141 | |
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142 | ReadMessage(commandSocketFD, serverName); |
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143 | ReadMessage(commandSocketFD, serverPort); |
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144 | |
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145 | /* Only continue if we are currently connected to a shell. */ |
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146 | if(!SML_present) { |
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147 | DeregisterComponent(); |
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148 | |
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149 | shutdown(commandSocketFD, 2); |
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150 | close(commandSocketFD); |
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151 | |
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152 | ConnectToRemoteComponent(serverName, serverPort, true); |
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153 | } |
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154 | } |
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155 | else if(strcmp(buffer, "disconnect_sml") == 0) { |
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156 | /* This command implies that we are disconnecting from the SML and |
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157 | * connecting to a shell component. */ |
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158 | char serverName[256]; |
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159 | char serverPort[256]; |
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160 | // TODO is this going to end up being too slow? |
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161 | memset(serverName, 0, 256); |
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162 | memset(serverPort, 0, 256); |
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163 | |
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164 | ReadMessage(commandSocketFD, serverName); |
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165 | ReadMessage(commandSocketFD, serverPort); |
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166 | |
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167 | /* We only want to do this if we are actually connected to an SML |
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168 | * currently. */ |
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169 | if(SML_present) { |
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170 | DeregisterServices(); |
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171 | |
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172 | shutdown(commandSocketFD, 2); |
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173 | close(commandSocketFD); |
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174 | |
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175 | ConnectToRemoteComponent(serverName, serverPort, false); |
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176 | } |
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177 | } |
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178 | else if(strcmp(buffer, "reset_engine_cognitive") == 0) { |
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179 | Reset(); |
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180 | } |
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181 | else if(strcmp(buffer, "shutdown_engine_cognitive") == 0) { |
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182 | Shutdown(); |
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183 | } |
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184 | } |
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185 | } |
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186 | |
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187 | |
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188 | void |
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189 | CognitiveEngine::Shutdown() |
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190 | { |
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191 | if(SML_present) { |
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192 | DeregisterServices(); |
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193 | DeregisterComponent(); |
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194 | } |
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195 | else { |
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196 | DeregisterComponent(); |
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197 | } |
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198 | // TODO should something else be happening here? |
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199 | } |
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200 | |
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201 | |
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202 | void |
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203 | CognitiveEngine::Reset() |
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204 | { |
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205 | LOG("Resetting Cognitive Engine.\n"); |
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206 | |
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207 | if(SML_present) { |
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208 | DeregisterServices(); |
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209 | DeregisterComponent(); |
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210 | } |
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211 | else { |
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212 | DeregisterComponent(); |
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213 | } |
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214 | } |
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215 | |
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216 | |
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217 | void |
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218 | CognitiveEngine::RegisterComponent() |
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219 | { |
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220 | SendMessage(commandSocketFD, "register_engine_cognitive"); |
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221 | LOG("Cognitive Engine:: Registration message sent to shell.\n"); |
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222 | } |
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223 | |
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224 | void |
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225 | CognitiveEngine::DeregisterComponent() |
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226 | { |
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227 | SendMessage(commandSocketFD, "deregister_engine_cognitive"); |
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228 | LOG("Cognitive Engine:: Deregistration message sent.\n"); |
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229 | |
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230 | shutdown(commandSocketFD, 2); |
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231 | close(commandSocketFD); |
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232 | commandSocketFD = -1; |
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233 | LOG("Cognitive Engine:: Shell socket closed.\n"); |
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234 | } |
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235 | |
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236 | |
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237 | void |
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238 | CognitiveEngine::RegisterServices() |
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239 | { |
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240 | LOG("Cognitive Engine:: Registering services.\n"); |
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241 | |
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242 | SendMessage(commandSocketFD, "register_service"); |
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243 | SendMessage(commandSocketFD, "jam_wifi"); |
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244 | |
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245 | SendMessage(commandSocketFD, "register_service"); |
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246 | SendMessage(commandSocketFD, "signal_detection"); |
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247 | |
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248 | SendMessage(commandSocketFD, "register_service"); |
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249 | SendMessage(commandSocketFD, "max_throughput"); |
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250 | |
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251 | SendMessage(commandSocketFD, "register_service"); |
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252 | SendMessage(commandSocketFD, "jam_bluetooth"); |
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253 | } |
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254 | |
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255 | |
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256 | void |
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257 | CognitiveEngine::DeregisterServices() |
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258 | { |
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259 | LOG("Cognitive Engine:: Deregistering services.\n"); |
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260 | |
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261 | SendMessage(commandSocketFD, "deregister_service"); |
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262 | SendMessage(commandSocketFD, "jam_wifi"); |
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263 | |
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264 | SendMessage(commandSocketFD, "deregister_service"); |
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265 | SendMessage(commandSocketFD, "signal_detection"); |
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266 | |
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267 | SendMessage(commandSocketFD, "deregister_service"); |
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268 | SendMessage(commandSocketFD, "max_throughput"); |
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269 | |
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270 | SendMessage(commandSocketFD, "deregister_service"); |
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271 | SendMessage(commandSocketFD, "jam_bluetooth"); |
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272 | |
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273 | } |
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274 | |
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275 | void |
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276 | CognitiveEngine::ReceiveRadioConfiguration() |
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277 | { |
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278 | LOG("Cognitive Engine:: Receiving Radio Configuration.\n"); |
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279 | |
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280 | char buffer[256]; |
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281 | uint32_t i,j,k; |
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282 | |
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283 | /* Receive Set of Utilities */ |
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284 | memset(buffer, 0, 256); |
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285 | ReadMessage(commandSocketFD,buffer); |
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286 | radioInfo->numUtilities = atoi(buffer); |
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287 | |
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288 | for (i = 0; i < radioInfo->numUtilities; i++){ |
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289 | memset(buffer, 0, 256); |
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290 | ReadMessage(commandSocketFD,buffer); |
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291 | uList[i].name = std::string(buffer); |
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292 | |
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293 | memset(buffer, 0, 256); |
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294 | ReadMessage(commandSocketFD,buffer); |
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295 | uList[i].units = std::string(buffer); |
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296 | |
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297 | memset(buffer, 0, 256); |
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298 | ReadMessage(commandSocketFD,buffer); |
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299 | uList[i].goal = std::string(buffer); |
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300 | |
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301 | memset(buffer, 0, 256); |
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302 | ReadMessage(commandSocketFD,buffer); |
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303 | uList[i].target = atof(buffer); |
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304 | } |
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305 | |
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306 | /* Receive Set of Parameters */ |
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307 | memset(buffer, 0, 256); |
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308 | ReadMessage(commandSocketFD, buffer); |
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309 | radioInfo->numParameters = atoi(buffer); |
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310 | |
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311 | for(size_t i = 0; i < radioInfo->numParameters; i++) { |
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312 | memset(buffer, 0, 256); |
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313 | ReadMessage(commandSocketFD, buffer); |
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314 | pList[i].name = std::string(buffer); |
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315 | |
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316 | memset(buffer, 0, 256); |
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317 | ReadMessage(commandSocketFD, buffer); |
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318 | pList[i].units = std::string(buffer); |
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319 | |
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320 | memset(buffer, 0, 256); |
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321 | ReadMessage(commandSocketFD, buffer); |
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322 | pList[i].min = atof(buffer); |
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323 | |
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324 | memset(buffer, 0, 256); |
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325 | ReadMessage(commandSocketFD, buffer); |
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326 | pList[i].max = atof(buffer); |
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327 | |
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328 | memset(buffer, 0, 256); |
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329 | ReadMessage(commandSocketFD, buffer); |
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330 | pList[i].step = atof(buffer); |
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331 | |
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332 | memset(buffer, 0, 256); |
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333 | ReadMessage(commandSocketFD,buffer); |
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334 | pList[i].numAffects = atoi(buffer); |
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335 | |
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336 | for (j = 0; j < pList[i].numAffects; j++){ |
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337 | memset(buffer, 0, 256); |
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338 | ReadMessage(commandSocketFD,buffer); |
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339 | for (k = 0; k < radioInfo->numUtilities; k++){ |
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340 | if(uList[k].name == std::string(buffer)){ |
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341 | pList[i].affection_list[j].u = &uList[k]; |
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342 | break; |
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343 | } |
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344 | } |
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345 | |
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346 | memset(buffer, 0, 256); |
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347 | ReadMessage(commandSocketFD,buffer); |
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348 | pList[i].affection_list[j].relation = std::string(buffer); |
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349 | } |
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350 | } |
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351 | |
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352 | /* Receive Set of Observables */ |
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353 | memset(buffer, 0, 256); |
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354 | ReadMessage(commandSocketFD,buffer); |
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355 | radioInfo->numObservables = atoi(buffer); |
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356 | |
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357 | for (i = 0; i < radioInfo->numObservables; i++){ |
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358 | memset(buffer, 0, 256); |
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359 | ReadMessage(commandSocketFD,buffer); |
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360 | oList[i].name = std::string(buffer); |
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361 | |
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362 | memset(buffer, 0, 256); |
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363 | ReadMessage(commandSocketFD,buffer); |
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364 | oList[i].numAffects = atoi(buffer); |
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365 | |
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366 | for (j = 0; j < oList[i].numAffects; j++){ |
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367 | memset(buffer, 0, 256); |
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368 | ReadMessage(commandSocketFD,buffer); |
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369 | for (k = 0; k < radioInfo->numUtilities; k++){ |
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370 | if(uList[k].name == std::string(buffer)){ |
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371 | oList[i].affection_list[j].u = &uList[k]; |
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372 | break; |
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373 | } |
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374 | } |
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375 | |
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376 | memset(buffer, 0, 256); |
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377 | ReadMessage(commandSocketFD,buffer); |
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378 | oList[i].affection_list[j].relation = std::string(buffer); |
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379 | } |
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380 | } |
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381 | |
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382 | SendMessage(commandSocketFD, "receive_config_ack"); |
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383 | } |
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384 | |
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385 | void |
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386 | CognitiveEngine::ReceiveExperience() |
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387 | { |
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388 | LOG("Cognitive Engine:: Receiving Experience Report.\n"); |
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389 | char buffer[256]; |
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390 | uint32_t numberExp; |
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391 | |
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392 | /* Receive number of experience entries */ |
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393 | memset(buffer, 0, 256); |
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394 | ReadMessage(commandSocketFD,buffer); |
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395 | numberExp = atoi(buffer); |
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396 | |
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397 | LOG("Cognitive Engine:: Waiting for %i number of entries.\n",numberExp); |
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398 | |
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399 | SendMessage(commandSocketFD, "receive_exp_ack"); |
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400 | } |
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401 | |
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402 | void |
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403 | CognitiveEngine::GetSolution(Observable *observables) |
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404 | { |
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405 | LOG("Cognitive Engine:: Generating solution.\n"); |
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406 | } |
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407 | |
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408 | void |
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409 | CognitiveEngine::GetSolution(Observable *observables, std::string service) |
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410 | { |
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411 | LOG("Cognitive Engine:: Generating solution for %s service.\n",service.c_str()); |
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412 | } |
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413 | |
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414 | void |
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415 | CognitiveEngine::ReceiveFeedback(Observable *observables, Parameter *parameters, \ |
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416 | Utility *utilities) |
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417 | { |
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418 | LOG("Cognitive Engine:: Receiving feedback.\n"); |
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419 | } |
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420 | |
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421 | void |
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422 | CognitiveEngine::ReceiveFeedback(Observable *observables, Parameter *parameters, \ |
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423 | Utility *utilities, std::string service) |
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424 | { |
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425 | LOG("Cognitive Engine:: Receiving feedback.\n"); |
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426 | } |
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