[218] | 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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[222] | 90 | uint16_t i; |
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[218] | 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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[222] | 105 | |
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| 106 | /* Receive Set of Observables */ |
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[223] | 107 | LOG("Cognitive Engine:: Receiving Observable Parameters\n"); |
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[218] | 108 | |
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[222] | 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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[223] | 125 | LOG("Cognitive Engine:: Processing parameters....\n"); |
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| 126 | LOG("Cognitive Engine:: Sending Optimal Parameters to Application.\n"); |
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[222] | 127 | SendMessage(commandSocketFD,"1"); |
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| 128 | SendMessage(commandSocketFD,"txPower"); |
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| 129 | SendMessage(commandSocketFD,"10"); |
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[218] | 130 | } |
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| 131 | else if(strcmp(buffer, "query_component_type") == 0) { |
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| 132 | SendComponentType(); |
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| 133 | } |
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| 134 | else if(strcmp(buffer, "connect_sml") == 0) { |
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| 135 | /* This command implies that we are disconnecting from the shell and |
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| 136 | * connecting to a SML component. */ |
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| 137 | char serverName[256]; |
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| 138 | char serverPort[256]; |
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| 139 | // TODO is this going to end up being too slow? |
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| 140 | memset(serverName, 0, 256); |
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| 141 | memset(serverPort, 0, 256); |
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| 142 | |
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| 143 | ReadMessage(commandSocketFD, serverName); |
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| 144 | ReadMessage(commandSocketFD, serverPort); |
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| 145 | |
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| 146 | /* Only continue if we are currently connected to a shell. */ |
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| 147 | if(!SML_present) { |
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| 148 | DeregisterComponent(); |
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| 149 | |
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| 150 | shutdown(commandSocketFD, 2); |
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| 151 | close(commandSocketFD); |
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| 152 | |
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| 153 | ConnectToRemoteComponent(serverName, serverPort, true); |
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| 154 | } |
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| 155 | } |
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| 156 | else if(strcmp(buffer, "disconnect_sml") == 0) { |
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| 157 | /* This command implies that we are disconnecting from the SML and |
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| 158 | * connecting to a shell component. */ |
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| 159 | char serverName[256]; |
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| 160 | char serverPort[256]; |
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| 161 | // TODO is this going to end up being too slow? |
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| 162 | memset(serverName, 0, 256); |
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| 163 | memset(serverPort, 0, 256); |
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| 164 | |
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| 165 | ReadMessage(commandSocketFD, serverName); |
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| 166 | ReadMessage(commandSocketFD, serverPort); |
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| 167 | |
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| 168 | /* We only want to do this if we are actually connected to an SML |
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| 169 | * currently. */ |
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| 170 | if(SML_present) { |
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| 171 | DeregisterServices(); |
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| 172 | |
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| 173 | shutdown(commandSocketFD, 2); |
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| 174 | close(commandSocketFD); |
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| 175 | |
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| 176 | ConnectToRemoteComponent(serverName, serverPort, false); |
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| 177 | } |
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| 178 | } |
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| 179 | else if(strcmp(buffer, "reset_engine_cognitive") == 0) { |
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| 180 | Reset(); |
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| 181 | } |
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| 182 | else if(strcmp(buffer, "shutdown_engine_cognitive") == 0) { |
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| 183 | Shutdown(); |
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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 | |
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| 189 | void |
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| 190 | CognitiveEngine::Shutdown() |
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| 191 | { |
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| 192 | if(SML_present) { |
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| 193 | DeregisterServices(); |
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| 194 | DeregisterComponent(); |
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| 195 | } |
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| 196 | else { |
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| 197 | DeregisterComponent(); |
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| 198 | } |
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| 199 | // TODO should something else be happening here? |
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| 200 | } |
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| 201 | |
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| 202 | |
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| 203 | void |
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| 204 | CognitiveEngine::Reset() |
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| 205 | { |
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| 206 | LOG("Resetting Cognitive Engine.\n"); |
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| 207 | |
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| 208 | if(SML_present) { |
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| 209 | DeregisterServices(); |
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| 210 | DeregisterComponent(); |
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| 211 | } |
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| 212 | else { |
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| 213 | DeregisterComponent(); |
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| 214 | } |
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| 215 | } |
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| 216 | |
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| 217 | |
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| 218 | void |
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| 219 | CognitiveEngine::RegisterComponent() |
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| 220 | { |
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| 221 | SendMessage(commandSocketFD, "register_engine_cognitive"); |
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| 222 | LOG("Cognitive Engine:: Registration message sent to shell.\n"); |
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| 223 | } |
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| 224 | |
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| 225 | void |
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| 226 | CognitiveEngine::DeregisterComponent() |
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| 227 | { |
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| 228 | SendMessage(commandSocketFD, "deregister_engine_cognitive"); |
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| 229 | LOG("Cognitive Engine:: Deregistration message sent.\n"); |
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| 230 | |
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| 231 | shutdown(commandSocketFD, 2); |
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| 232 | close(commandSocketFD); |
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| 233 | commandSocketFD = -1; |
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| 234 | LOG("Cognitive Engine:: Shell socket closed.\n"); |
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| 235 | } |
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| 236 | |
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| 237 | |
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| 238 | void |
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| 239 | CognitiveEngine::RegisterServices() |
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| 240 | { |
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| 241 | LOG("Cognitive Engine:: Registering services.\n"); |
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| 242 | |
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| 243 | SendMessage(commandSocketFD, "register_service"); |
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| 244 | SendMessage(commandSocketFD, "jam_wifi"); |
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| 245 | |
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| 246 | SendMessage(commandSocketFD, "register_service"); |
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| 247 | SendMessage(commandSocketFD, "signal_detection"); |
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| 248 | |
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| 249 | SendMessage(commandSocketFD, "register_service"); |
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| 250 | SendMessage(commandSocketFD, "max_throughput"); |
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| 251 | |
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| 252 | SendMessage(commandSocketFD, "register_service"); |
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| 253 | SendMessage(commandSocketFD, "jam_bluetooth"); |
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| 254 | } |
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| 255 | |
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| 256 | |
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| 257 | void |
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| 258 | CognitiveEngine::DeregisterServices() |
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| 259 | { |
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| 260 | LOG("Cognitive Engine:: Deregistering services.\n"); |
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| 261 | |
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| 262 | SendMessage(commandSocketFD, "deregister_service"); |
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| 263 | SendMessage(commandSocketFD, "jam_wifi"); |
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| 264 | |
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| 265 | SendMessage(commandSocketFD, "deregister_service"); |
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| 266 | SendMessage(commandSocketFD, "signal_detection"); |
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| 267 | |
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| 268 | SendMessage(commandSocketFD, "deregister_service"); |
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| 269 | SendMessage(commandSocketFD, "max_throughput"); |
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| 270 | |
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| 271 | SendMessage(commandSocketFD, "deregister_service"); |
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| 272 | SendMessage(commandSocketFD, "jam_bluetooth"); |
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| 273 | |
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| 274 | } |
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| 275 | |
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| 276 | void |
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| 277 | CognitiveEngine::ReceiveRadioConfiguration() |
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| 278 | { |
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| 279 | LOG("Cognitive Engine:: Receiving Radio Configuration.\n"); |
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| 280 | |
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| 281 | char buffer[256]; |
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| 282 | uint32_t i,j,k; |
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| 283 | |
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| 284 | /* Receive Set of Utilities */ |
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| 285 | memset(buffer, 0, 256); |
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| 286 | ReadMessage(commandSocketFD,buffer); |
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| 287 | radioInfo->numUtilities = atoi(buffer); |
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| 288 | |
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| 289 | for (i = 0; i < radioInfo->numUtilities; i++){ |
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| 290 | memset(buffer, 0, 256); |
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| 291 | ReadMessage(commandSocketFD,buffer); |
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| 292 | uList[i].name = std::string(buffer); |
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| 293 | |
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| 294 | memset(buffer, 0, 256); |
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| 295 | ReadMessage(commandSocketFD,buffer); |
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| 296 | uList[i].units = std::string(buffer); |
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| 297 | |
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| 298 | memset(buffer, 0, 256); |
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| 299 | ReadMessage(commandSocketFD,buffer); |
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| 300 | uList[i].goal = std::string(buffer); |
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| 301 | |
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| 302 | memset(buffer, 0, 256); |
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| 303 | ReadMessage(commandSocketFD,buffer); |
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| 304 | uList[i].target = atof(buffer); |
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| 305 | } |
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| 306 | |
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| 307 | /* Receive Set of Parameters */ |
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| 308 | memset(buffer, 0, 256); |
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| 309 | ReadMessage(commandSocketFD, buffer); |
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| 310 | radioInfo->numParameters = atoi(buffer); |
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| 311 | |
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| 312 | for(size_t i = 0; i < radioInfo->numParameters; i++) { |
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| 313 | memset(buffer, 0, 256); |
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| 314 | ReadMessage(commandSocketFD, buffer); |
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| 315 | pList[i].name = std::string(buffer); |
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| 316 | |
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| 317 | memset(buffer, 0, 256); |
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| 318 | ReadMessage(commandSocketFD, buffer); |
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| 319 | pList[i].units = std::string(buffer); |
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| 320 | |
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| 321 | memset(buffer, 0, 256); |
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| 322 | ReadMessage(commandSocketFD, buffer); |
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| 323 | pList[i].min = atof(buffer); |
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| 324 | |
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| 325 | memset(buffer, 0, 256); |
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| 326 | ReadMessage(commandSocketFD, buffer); |
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| 327 | pList[i].max = atof(buffer); |
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| 328 | |
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| 329 | memset(buffer, 0, 256); |
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| 330 | ReadMessage(commandSocketFD, buffer); |
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| 331 | pList[i].step = atof(buffer); |
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| 332 | |
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| 333 | memset(buffer, 0, 256); |
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| 334 | ReadMessage(commandSocketFD,buffer); |
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| 335 | pList[i].numAffects = atoi(buffer); |
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| 336 | |
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| 337 | for (j = 0; j < pList[i].numAffects; j++){ |
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| 338 | memset(buffer, 0, 256); |
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| 339 | ReadMessage(commandSocketFD,buffer); |
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| 340 | for (k = 0; k < radioInfo->numUtilities; k++){ |
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| 341 | if(uList[k].name == std::string(buffer)){ |
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| 342 | pList[i].affection_list[j].u = &uList[k]; |
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| 343 | break; |
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| 344 | } |
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| 345 | } |
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| 346 | |
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| 347 | memset(buffer, 0, 256); |
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| 348 | ReadMessage(commandSocketFD,buffer); |
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| 349 | pList[i].affection_list[j].relation = std::string(buffer); |
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| 350 | } |
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| 351 | } |
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| 352 | |
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| 353 | /* Receive Set of Observables */ |
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| 354 | memset(buffer, 0, 256); |
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| 355 | ReadMessage(commandSocketFD,buffer); |
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| 356 | radioInfo->numObservables = atoi(buffer); |
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| 357 | |
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| 358 | for (i = 0; i < radioInfo->numObservables; i++){ |
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| 359 | memset(buffer, 0, 256); |
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| 360 | ReadMessage(commandSocketFD,buffer); |
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| 361 | oList[i].name = std::string(buffer); |
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| 362 | |
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| 363 | memset(buffer, 0, 256); |
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| 364 | ReadMessage(commandSocketFD,buffer); |
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| 365 | oList[i].numAffects = atoi(buffer); |
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| 366 | |
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| 367 | for (j = 0; j < oList[i].numAffects; j++){ |
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| 368 | memset(buffer, 0, 256); |
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| 369 | ReadMessage(commandSocketFD,buffer); |
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| 370 | for (k = 0; k < radioInfo->numUtilities; k++){ |
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| 371 | if(uList[k].name == std::string(buffer)){ |
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| 372 | oList[i].affection_list[j].u = &uList[k]; |
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| 373 | break; |
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| 374 | } |
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| 375 | } |
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| 376 | |
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| 377 | memset(buffer, 0, 256); |
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| 378 | ReadMessage(commandSocketFD,buffer); |
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| 379 | oList[i].affection_list[j].relation = std::string(buffer); |
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| 380 | } |
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| 381 | } |
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| 382 | |
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| 383 | SendMessage(commandSocketFD, "receive_config_ack"); |
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| 384 | } |
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| 385 | |
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| 386 | void |
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| 387 | CognitiveEngine::ReceiveExperience() |
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| 388 | { |
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| 389 | LOG("Cognitive Engine:: Receiving Experience Report.\n"); |
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| 390 | char buffer[256]; |
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| 391 | uint32_t numberExp; |
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| 392 | |
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| 393 | /* Receive number of experience entries */ |
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| 394 | memset(buffer, 0, 256); |
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| 395 | ReadMessage(commandSocketFD,buffer); |
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| 396 | numberExp = atoi(buffer); |
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| 397 | |
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| 398 | LOG("Cognitive Engine:: Waiting for %i number of entries.\n",numberExp); |
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| 399 | |
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| 400 | SendMessage(commandSocketFD, "receive_exp_ack"); |
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| 401 | } |
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| 402 | |
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| 403 | void |
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| 404 | CognitiveEngine::GetSolution(Observable *observables) |
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| 405 | { |
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| 406 | LOG("Cognitive Engine:: Generating solution.\n"); |
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| 407 | } |
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| 408 | |
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| 409 | void |
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| 410 | CognitiveEngine::GetSolution(Observable *observables, std::string service) |
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| 411 | { |
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| 412 | LOG("Cognitive Engine:: Generating solution for %s service.\n",service.c_str()); |
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| 413 | } |
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| 414 | |
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| 415 | void |
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| 416 | CognitiveEngine::ReceiveFeedback(Observable *observables, Parameter *parameters, \ |
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| 417 | Utility *utilities) |
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| 418 | { |
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| 419 | LOG("Cognitive Engine:: Receiving feedback.\n"); |
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| 420 | } |
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| 421 | |
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| 422 | void |
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| 423 | CognitiveEngine::ReceiveFeedback(Observable *observables, Parameter *parameters, \ |
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| 424 | Utility *utilities, std::string service) |
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| 425 | { |
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| 426 | LOG("Cognitive Engine:: Receiving feedback.\n"); |
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| 427 | } |
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