[417] | 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 | #include <math.h> |
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| 15 | |
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| 16 | #include "vtcross/common.h" |
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| 17 | #include "vtcross/components.h" |
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| 18 | #include "vtcross/containers.h" |
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| 19 | #include "vtcross/debug.h" |
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| 20 | #include "vtcross/error.h" |
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| 21 | #include "vtcross/socketcomm.h" |
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| 22 | #include "vtcross/cbr.h" |
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| 23 | |
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| 24 | // TODO this is really bad; need to move to a proper cbr.h |
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| 25 | #include "cbr.c" |
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| 26 | |
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| 27 | #include "sqlite3.h" |
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| 28 | #include "sqlite3ext.h" |
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| 29 | |
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| 30 | #define TXPOWER 1 |
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| 31 | |
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| 32 | static cbr myCBR; |
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| 33 | |
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| 34 | |
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| 35 | CognitiveEngine::CognitiveEngine() |
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| 36 | { |
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| 37 | LOG("Creating Cognitive Engine.\n"); |
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| 38 | SML_present = false; |
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| 39 | commandSocketFD = -1; |
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| 40 | } |
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| 41 | |
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| 42 | |
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| 43 | CognitiveEngine::~CognitiveEngine() |
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| 44 | { |
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| 45 | cbr_free(myCBR); |
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| 46 | delete [] pList; |
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| 47 | delete [] oList; |
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| 48 | delete [] uList; |
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| 49 | delete [] radioInfo; |
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| 50 | } |
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| 51 | |
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| 52 | |
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| 53 | CognitiveEngine::CognitiveEngine(const char *serverName, const char *serverPort, \ |
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| 54 | const bool SML) |
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| 55 | { |
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| 56 | LOG("Creating Cognitive Engine.\n"); |
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| 57 | |
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| 58 | pList = new Parameter[10]; |
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| 59 | oList = new Observable[10]; |
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| 60 | uList = new Utility[10]; |
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| 61 | radioInfo = new Radio_Info; |
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| 62 | |
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| 63 | ConnectToRemoteComponent(serverName, serverPort, SML); |
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| 64 | } |
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| 65 | |
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| 66 | |
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| 67 | void |
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| 68 | CognitiveEngine::SendComponentType() |
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| 69 | { |
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| 70 | SendMessage(commandSocketFD, "response_engine_cognitive"); |
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| 71 | LOG("Cognitive Engine responded to GetRemoteComponentType query.\n"); |
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| 72 | } |
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| 73 | |
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| 74 | |
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| 75 | void |
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| 76 | CognitiveEngine::ConnectToRemoteComponent(const char *serverName, \ |
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| 77 | const char *serverPort, const bool SML) |
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| 78 | { |
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| 79 | commandSocketFD = ClientSocket(serverName, serverPort); |
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| 80 | |
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| 81 | SML_present = SML; |
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| 82 | |
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| 83 | if(SML) { |
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| 84 | |
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| 85 | RegisterComponent(); |
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| 86 | LOG("Cognitive Engine connected to SML at %s.\n", serverName); |
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| 87 | ReceiveRadioConfiguration(); |
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| 88 | ReceiveExperience(); |
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| 89 | |
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| 90 | RegisterServices(); |
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| 91 | } |
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| 92 | else { |
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| 93 | RegisterComponent(); |
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| 94 | LOG("Cognitive Engine connected to shell at %s.\n", serverName); |
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| 95 | ReceiveRadioConfiguration(); |
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| 96 | ReceiveExperience(); |
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| 97 | } |
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| 98 | } |
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| 99 | |
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| 100 | void |
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| 101 | CognitiveEngine::ReceiveFeedback(Observable *observables, Parameter *parameters) |
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| 102 | { |
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| 103 | LOG("Cognitive Engine:: Receiving feedback.\n"); |
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| 104 | |
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| 105 | uint32_t numberColumns = |
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| 106 | radioInfo->numParameters + |
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| 107 | radioInfo->numUtilities; |
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| 108 | |
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| 109 | uint32_t obsColumns = radioInfo->numObservables + 1; |
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| 110 | |
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| 111 | float valList[numberColumns]; |
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| 112 | float obsVals[numberColumns]; |
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| 113 | char *nameList[numberColumns]; |
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| 114 | char *obsList[obsColumns]; |
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| 115 | |
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| 116 | size_t columnObsIndex = 0; |
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| 117 | for (size_t i = 0; i < radioInfo->numObservables; i++){ |
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| 118 | obsList[columnObsIndex] = (char*)observables[i].name.c_str(); |
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| 119 | columnObsIndex++; |
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| 120 | } |
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[418] | 121 | obsList[columnObsIndex] = (char*) "utility"; |
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[417] | 122 | |
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| 123 | size_t columnIndex = 0; |
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| 124 | for (size_t i = 0; i < radioInfo->numParameters; i++){ |
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| 125 | nameList[columnIndex] = (char*)parameters[i].name.c_str(); |
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| 126 | columnIndex++; |
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| 127 | } |
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| 128 | for (size_t i = 0; i < radioInfo->numUtilities; i++){ |
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| 129 | nameList[columnIndex] = (char*)uList[i].name.c_str(); |
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| 130 | columnIndex++; |
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| 131 | } |
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| 132 | |
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| 133 | size_t obsValueIndex = 0; |
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| 134 | for(size_t i = 0; i < radioInfo->numObservables; i++) { |
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| 135 | obsVals[obsValueIndex] = observables[i].value; |
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| 136 | obsValueIndex++; |
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| 137 | } |
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| 138 | |
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| 139 | /* Calculate Utility */ |
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| 140 | float newUtilityValue = 0; |
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| 141 | |
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| 142 | // This should probably take into acount that the BER has a log distribution, |
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| 143 | // we are getting raw BER values here. |
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| 144 | for(size_t i = 0; i < radioInfo->numUtilities; i++) { |
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| 145 | newUtilityValue = newUtilityValue + (uList[i].target - observables[i].value); |
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| 146 | } |
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| 147 | obsVals[obsValueIndex] = newUtilityValue; |
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| 148 | |
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| 149 | size_t returnValueIndex = 0; |
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| 150 | for(size_t i = 0; i < radioInfo->numParameters; i++) { |
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| 151 | valList[returnValueIndex] = parameters[i].value; |
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| 152 | returnValueIndex++; |
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| 153 | } |
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| 154 | for(size_t i = 0; i < radioInfo->numUtilities; i++) { |
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| 155 | valList[returnValueIndex] = uList[i].target; |
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| 156 | returnValueIndex++; |
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| 157 | } |
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| 158 | |
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| 159 | cbr_update(myCBR, nameList, obsList, valList, obsVals, |
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| 160 | numberColumns, obsColumns); |
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| 161 | } |
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| 162 | |
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| 163 | |
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| 164 | void |
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| 165 | CognitiveEngine::WaitForSignal() |
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| 166 | { |
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| 167 | char buffer[256]; |
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| 168 | |
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| 169 | while(true) { |
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| 170 | memset(buffer, 0, 256); |
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| 171 | |
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| 172 | ReadMessage(commandSocketFD, buffer); |
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| 173 | |
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| 174 | // TODO this is ugly... is there a better way? Doesn't strcmp compare the |
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| 175 | // whole string? We only need to compare until we find a single different |
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| 176 | // byte... |
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| 177 | // |
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| 178 | // If we send integer op codes rather than strings, this process will be |
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| 179 | // MUCH faster since instead of donig string compares we can simply |
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| 180 | // switch on the integer value... |
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| 181 | if(strcmp(buffer, "update_performance") == 0) { |
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| 182 | |
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| 183 | /* Receive Set of current Parameters */ |
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| 184 | memset(buffer, 0, 256); |
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| 185 | ReadMessage(commandSocketFD, buffer); |
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| 186 | uint32_t numParameters = atoi(buffer); |
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| 187 | |
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| 188 | Parameter *p = new Parameter[numParameters]; |
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| 189 | |
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| 190 | for(size_t i = 0; i < numParameters; i++) { |
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| 191 | memset(buffer, 0, 256); |
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| 192 | ReadMessage(commandSocketFD, buffer); |
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| 193 | p[i].name = std::string(buffer); |
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| 194 | |
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| 195 | memset(buffer, 0, 256); |
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| 196 | ReadMessage(commandSocketFD, buffer); |
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| 197 | p[i].value = atof(buffer); |
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| 198 | } |
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| 199 | |
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| 200 | /* Receive Set of Observables */ |
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| 201 | memset(buffer, 0, 256); |
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| 202 | ReadMessage(commandSocketFD, buffer); |
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| 203 | uint32_t numObservables = atoi(buffer); |
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| 204 | |
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| 205 | Observable *o = new Observable[numObservables]; |
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| 206 | |
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| 207 | for(size_t i = 0; i < numObservables; i++) { |
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| 208 | memset(buffer, 0, 256); |
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| 209 | ReadMessage(commandSocketFD, buffer); |
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| 210 | o[i].name = std::string(buffer); |
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| 211 | |
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| 212 | memset(buffer, 0, 256); |
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| 213 | ReadMessage(commandSocketFD, buffer); |
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| 214 | o[i].value = atof(buffer); |
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| 215 | } |
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| 216 | |
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| 217 | ReceiveFeedback(o,p); |
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| 218 | |
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| 219 | delete [] o; |
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| 220 | delete [] p; |
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| 221 | } |
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| 222 | else if(strcmp(buffer, "request_optimization_service") == 0) { |
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| 223 | // THIS IS CURRENTLY IN DEMO MODE |
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| 224 | |
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| 225 | |
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| 226 | /* Receive Set of Observables */ |
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| 227 | LOG("\nCognitive Engine:: Receiving service name\n"); |
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| 228 | |
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| 229 | memset(buffer, 0, 256); |
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| 230 | ReadMessage(commandSocketFD,buffer); |
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| 231 | LOG("\nCognitive Engine:: Got service name, %s\n", buffer); |
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| 232 | |
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| 233 | /* Receive Set of Observables */ |
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| 234 | LOG("\nCognitive Engine:: Receiving Observable Parameters\n"); |
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| 235 | |
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| 236 | memset(buffer, 0, 256); |
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| 237 | ReadMessage(commandSocketFD,buffer); |
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| 238 | uint32_t numObservables = atoi(buffer); |
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| 239 | |
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| 240 | Observable *o = new Observable[numObservables]; |
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| 241 | |
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| 242 | for(size_t i = 0; i < numObservables; i++) { |
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| 243 | memset(buffer, 0, 256); |
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| 244 | ReadMessage(commandSocketFD, buffer); |
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| 245 | o[i].name = std::string(buffer); |
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| 246 | |
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| 247 | memset(buffer, 0, 256); |
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| 248 | ReadMessage(commandSocketFD, buffer); |
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| 249 | o[i].value = atof(buffer); |
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| 250 | } |
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| 251 | |
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| 252 | /* Receive Set of current Parameters */ |
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| 253 | LOG("Cognitive Engine:: Receiving Current Transmission Parameters\n"); |
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| 254 | |
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| 255 | memset(buffer, 0, 256); |
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| 256 | ReadMessage(commandSocketFD, buffer); |
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| 257 | uint32_t numCurrentParameters = atoi(buffer); |
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| 258 | |
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| 259 | Parameter *cp = new Parameter[numCurrentParameters]; |
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| 260 | |
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| 261 | for(size_t i = 0; i < numCurrentParameters; i++) { |
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| 262 | memset(buffer, 0, 256); |
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| 263 | ReadMessage(commandSocketFD, buffer); |
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| 264 | cp[i].name = std::string(buffer); |
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| 265 | |
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| 266 | memset(buffer, 0, 256); |
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| 267 | ReadMessage(commandSocketFD, buffer); |
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| 268 | cp[i].value = atof(buffer); |
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| 269 | } |
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| 270 | LOG("Cognitive Engine:: Processing parameters....\n"); |
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| 271 | |
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[418] | 272 | //Parameter *solutionSet; |
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[417] | 273 | |
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| 274 | //solutionSet = GetSolution(o,cp); |
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| 275 | |
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| 276 | // TODO need to actually do something with the observables here |
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| 277 | |
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| 278 | LOG("Cognitive Engine:: Sending Optimal Parameters to Application.\n"); |
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| 279 | char numParametersChar[10]; |
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[418] | 280 | //char solutionValue[50]; |
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[417] | 281 | sprintf(numParametersChar, "%i", radioInfo->numParameters); |
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| 282 | SendMessage(commandSocketFD, numParametersChar); |
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| 283 | for(size_t i = 0; i < radioInfo->numParameters; i++) { |
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| 284 | //SendMessage(commandSocketFD, solutionSet[i].name.c_str()); |
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| 285 | SendMessage(commandSocketFD, "test"); |
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| 286 | //memset(solutionValue, 0, 50); |
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| 287 | //sprintf(solutionValue, "%f", solutionSet[i].value); |
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| 288 | //SendMessage(commandSocketFD, solutionValue); |
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| 289 | SendMessage(commandSocketFD, "00"); |
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| 290 | } |
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| 291 | |
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| 292 | delete [] o; |
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| 293 | delete [] cp; |
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| 294 | } |
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| 295 | else if(strcmp(buffer, "request_optimization") == 0) { |
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| 296 | |
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| 297 | /* Receive Set of Observables */ |
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| 298 | LOG("\nCognitive Engine:: Receiving Observable Parameters\n"); |
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| 299 | |
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| 300 | memset(buffer, 0, 256); |
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| 301 | ReadMessage(commandSocketFD,buffer); |
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| 302 | uint32_t numObservables = atoi(buffer); |
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| 303 | |
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| 304 | Observable *o = new Observable[numObservables]; |
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| 305 | |
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| 306 | for(size_t i = 0; i < numObservables; i++) { |
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| 307 | memset(buffer, 0, 256); |
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| 308 | ReadMessage(commandSocketFD, buffer); |
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| 309 | o[i].name = std::string(buffer); |
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| 310 | |
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| 311 | memset(buffer, 0, 256); |
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| 312 | ReadMessage(commandSocketFD, buffer); |
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| 313 | o[i].value = atof(buffer); |
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| 314 | } |
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| 315 | |
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| 316 | /* Receive Set of current Parameters */ |
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| 317 | LOG("Cognitive Engine:: Receiving Current Transmission Parameters\n"); |
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| 318 | |
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| 319 | memset(buffer, 0, 256); |
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| 320 | ReadMessage(commandSocketFD, buffer); |
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| 321 | uint32_t numCurrentParameters = atoi(buffer); |
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| 322 | |
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| 323 | Parameter *cp = new Parameter[numCurrentParameters]; |
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| 324 | |
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| 325 | for(size_t i = 0; i < numCurrentParameters; i++) { |
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| 326 | memset(buffer, 0, 256); |
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| 327 | ReadMessage(commandSocketFD, buffer); |
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| 328 | cp[i].name = std::string(buffer); |
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| 329 | |
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| 330 | memset(buffer, 0, 256); |
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| 331 | ReadMessage(commandSocketFD, buffer); |
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| 332 | cp[i].value = atof(buffer); |
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| 333 | } |
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| 334 | LOG("Cognitive Engine:: Processing parameters....\n"); |
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| 335 | |
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| 336 | Parameter *solutionSet; |
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| 337 | |
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| 338 | solutionSet = GetSolution(o,cp); |
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| 339 | |
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| 340 | // TODO need to actually do something with the observables here |
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| 341 | |
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| 342 | LOG("Cognitive Engine:: Sending Optimal Parameters to Application.\n"); |
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| 343 | char numParametersChar[10]; |
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| 344 | char solutionValue[50]; |
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| 345 | sprintf(numParametersChar, "%i", radioInfo->numParameters); |
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| 346 | SendMessage(commandSocketFD, numParametersChar); |
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| 347 | for(size_t i = 0; i < radioInfo->numParameters; i++) { |
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| 348 | SendMessage(commandSocketFD, solutionSet[i].name.c_str()); |
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| 349 | memset(solutionValue, 0, 50); |
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| 350 | sprintf(solutionValue, "%f", solutionSet[i].value); |
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| 351 | SendMessage(commandSocketFD, solutionValue); |
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| 352 | } |
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| 353 | |
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| 354 | delete [] o; |
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| 355 | delete [] cp; |
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| 356 | } |
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| 357 | else if(strcmp(buffer, "query_component_type") == 0) { |
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| 358 | SendComponentType(); |
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| 359 | } |
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| 360 | else if(strcmp(buffer, "connect_sml") == 0) { |
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| 361 | /* This command implies that we are disconnecting from the shell and |
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| 362 | * connecting to a SML component. */ |
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| 363 | char serverName[256]; |
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| 364 | char serverPort[256]; |
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| 365 | // TODO is this going to end up being too slow? |
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| 366 | memset(serverName, 0, 256); |
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| 367 | memset(serverPort, 0, 256); |
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| 368 | |
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| 369 | ReadMessage(commandSocketFD, serverName); |
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| 370 | ReadMessage(commandSocketFD, serverPort); |
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| 371 | |
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| 372 | /* Only continue if we are currently connected to a shell. */ |
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| 373 | if(!SML_present) { |
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| 374 | DeregisterComponent(); |
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| 375 | |
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| 376 | shutdown(commandSocketFD, 2); |
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| 377 | close(commandSocketFD); |
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| 378 | |
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| 379 | ConnectToRemoteComponent(serverName, serverPort, true); |
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| 380 | } |
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| 381 | } |
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| 382 | else if(strcmp(buffer, "disconnect_sml") == 0) { |
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| 383 | /* This command implies that we are disconnecting from the SML and |
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| 384 | * connecting to a shell component. */ |
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| 385 | char serverName[256]; |
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| 386 | char serverPort[256]; |
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| 387 | // TODO is this going to end up being too slow? |
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| 388 | memset(serverName, 0, 256); |
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| 389 | memset(serverPort, 0, 256); |
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| 390 | |
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| 391 | ReadMessage(commandSocketFD, serverName); |
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| 392 | ReadMessage(commandSocketFD, serverPort); |
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| 393 | |
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| 394 | /* We only want to do this if we are actually connected to an SML |
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| 395 | * currently. */ |
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| 396 | if(SML_present) { |
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| 397 | DeregisterServices(); |
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| 398 | |
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| 399 | shutdown(commandSocketFD, 2); |
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| 400 | close(commandSocketFD); |
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| 401 | |
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| 402 | ConnectToRemoteComponent(serverName, serverPort, false); |
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| 403 | } |
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| 404 | } |
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| 405 | else if(strcmp(buffer, "reset_engine_cognitive") == 0) { |
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| 406 | Reset(); |
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| 407 | } |
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| 408 | else if(strcmp(buffer, "shutdown_engine_cognitive") == 0) { |
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| 409 | Shutdown(); |
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| 410 | } |
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| 411 | } |
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| 412 | } |
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| 413 | |
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| 414 | |
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| 415 | void |
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| 416 | CognitiveEngine::Shutdown() |
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| 417 | { |
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| 418 | if(SML_present) { |
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| 419 | //DeregisterServices(); |
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| 420 | DeregisterComponent(); |
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| 421 | } |
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| 422 | else { |
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| 423 | DeregisterComponent(); |
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| 424 | } |
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| 425 | // TODO should something else be happening here? |
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| 426 | } |
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| 427 | |
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| 428 | |
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| 429 | void |
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| 430 | CognitiveEngine::Reset() |
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| 431 | { |
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| 432 | LOG("Resetting Cognitive Engine.\n"); |
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| 433 | |
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| 434 | if(SML_present) { |
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| 435 | DeregisterServices(); |
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| 436 | DeregisterComponent(); |
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| 437 | } |
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| 438 | else { |
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| 439 | DeregisterComponent(); |
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| 440 | } |
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| 441 | } |
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| 442 | |
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| 443 | |
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| 444 | void |
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| 445 | CognitiveEngine::RegisterComponent() |
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| 446 | { |
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| 447 | char buffer[256]; |
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| 448 | SendMessage(commandSocketFD, "register_engine_cognitive"); |
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| 449 | LOG("Cognitive Engine:: Registration message sent to shell.\n"); |
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| 450 | |
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| 451 | memset(buffer, 0, 256); |
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| 452 | ReadMessage(commandSocketFD, buffer); |
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| 453 | } |
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| 454 | |
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| 455 | void |
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| 456 | CognitiveEngine::DeregisterComponent() |
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| 457 | { |
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| 458 | SendMessage(commandSocketFD, "deregister_engine_cognitive"); |
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| 459 | LOG("Cognitive Engine:: Deregistration message sent.\n"); |
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| 460 | |
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| 461 | shutdown(commandSocketFD, 2); |
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| 462 | close(commandSocketFD); |
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| 463 | commandSocketFD = -1; |
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| 464 | LOG("Cognitive Engine:: Shell socket closed.\n"); |
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| 465 | } |
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| 466 | |
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| 467 | |
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| 468 | void |
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| 469 | CognitiveEngine::RegisterServices() |
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| 470 | { |
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| 471 | LOG("Cognitive Engine:: Registering services.\n"); |
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| 472 | |
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| 473 | SendMessage(commandSocketFD, "register_service"); |
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| 474 | SendMessage(commandSocketFD, "test_srv"); |
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| 475 | |
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| 476 | SendMessage(commandSocketFD, "register_service"); |
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| 477 | SendMessage(commandSocketFD, "test_srv1"); |
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| 478 | |
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| 479 | SendMessage(commandSocketFD, "register_service"); |
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| 480 | SendMessage(commandSocketFD, "test_srv2"); |
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| 481 | |
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| 482 | SendMessage(commandSocketFD, "register_service"); |
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| 483 | SendMessage(commandSocketFD, "test_srv3"); |
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| 484 | |
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| 485 | } |
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| 486 | |
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| 487 | //Combined with deregister component since those two things must happen togeather |
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| 488 | void |
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| 489 | CognitiveEngine::DeregisterServices() |
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| 490 | { |
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| 491 | LOG("Cognitive Engine:: Deregistering services.\n"); |
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| 492 | |
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| 493 | SendMessage(commandSocketFD, "deregister_service"); |
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| 494 | SendMessage(commandSocketFD, "test_srv"); |
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| 495 | |
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| 496 | SendMessage(commandSocketFD, "deregister_service"); |
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| 497 | SendMessage(commandSocketFD, "test_srv1"); |
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| 498 | |
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| 499 | SendMessage(commandSocketFD, "deregister_service"); |
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| 500 | SendMessage(commandSocketFD, "test_srv2"); |
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| 501 | |
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| 502 | SendMessage(commandSocketFD, "deregister_service"); |
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| 503 | SendMessage(commandSocketFD, "test_srv3"); |
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| 504 | |
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| 505 | } |
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| 506 | |
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| 507 | void |
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| 508 | CognitiveEngine::ReceiveRadioConfiguration() |
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| 509 | { |
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| 510 | LOG("Cognitive Engine:: Receiving Radio Configuration.\n"); |
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| 511 | |
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| 512 | char buffer[256]; |
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| 513 | |
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| 514 | /* Receive Set of Utilities */ |
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| 515 | memset(buffer, 0, 256); |
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| 516 | ReadMessage(commandSocketFD, buffer); |
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| 517 | radioInfo->numUtilities = atoi(buffer); |
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| 518 | |
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| 519 | for(size_t i = 0; i < radioInfo->numUtilities; i++) { |
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| 520 | memset(buffer, 0, 256); |
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| 521 | ReadMessage(commandSocketFD, buffer); |
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| 522 | uList[i].name = std::string(buffer); |
---|
| 523 | |
---|
| 524 | memset(buffer, 0, 256); |
---|
| 525 | ReadMessage(commandSocketFD, buffer); |
---|
| 526 | uList[i].units = std::string(buffer); |
---|
| 527 | |
---|
| 528 | memset(buffer, 0, 256); |
---|
| 529 | ReadMessage(commandSocketFD, buffer); |
---|
| 530 | uList[i].goal = std::string(buffer); |
---|
| 531 | |
---|
| 532 | memset(buffer, 0, 256); |
---|
| 533 | ReadMessage(commandSocketFD, buffer); |
---|
| 534 | uList[i].target = atof(buffer); |
---|
| 535 | } |
---|
| 536 | |
---|
| 537 | /* Receive Set of Parameters */ |
---|
| 538 | memset(buffer, 0, 256); |
---|
| 539 | ReadMessage(commandSocketFD, buffer); |
---|
| 540 | radioInfo->numParameters = atoi(buffer); |
---|
| 541 | |
---|
| 542 | for(size_t i = 0; i < radioInfo->numParameters; i++) { |
---|
| 543 | memset(buffer, 0, 256); |
---|
| 544 | ReadMessage(commandSocketFD, buffer); |
---|
| 545 | pList[i].name = std::string(buffer); |
---|
| 546 | |
---|
| 547 | memset(buffer, 0, 256); |
---|
| 548 | ReadMessage(commandSocketFD, buffer); |
---|
| 549 | pList[i].units = std::string(buffer); |
---|
| 550 | |
---|
| 551 | memset(buffer, 0, 256); |
---|
| 552 | ReadMessage(commandSocketFD, buffer); |
---|
| 553 | pList[i].min = atof(buffer); |
---|
| 554 | |
---|
| 555 | memset(buffer, 0, 256); |
---|
| 556 | ReadMessage(commandSocketFD, buffer); |
---|
| 557 | pList[i].max = atof(buffer); |
---|
| 558 | |
---|
| 559 | memset(buffer, 0, 256); |
---|
| 560 | ReadMessage(commandSocketFD, buffer); |
---|
| 561 | pList[i].step = atof(buffer); |
---|
| 562 | |
---|
| 563 | memset(buffer, 0, 256); |
---|
| 564 | ReadMessage(commandSocketFD,buffer); |
---|
| 565 | pList[i].numAffects = atoi(buffer); |
---|
| 566 | |
---|
| 567 | for(size_t j = 0; j < pList[i].numAffects; j++) { |
---|
| 568 | memset(buffer, 0, 256); |
---|
| 569 | ReadMessage(commandSocketFD,buffer); |
---|
| 570 | // TODO for + if{break} = while? |
---|
| 571 | for(size_t k = 0; k < radioInfo->numUtilities; k++) { |
---|
| 572 | if(uList[k].name == std::string(buffer)) { |
---|
| 573 | pList[i].affection_list[j].u = &uList[k]; |
---|
| 574 | break; |
---|
| 575 | } |
---|
| 576 | } |
---|
| 577 | |
---|
| 578 | memset(buffer, 0, 256); |
---|
| 579 | ReadMessage(commandSocketFD, buffer); |
---|
| 580 | pList[i].affection_list[j].relation = std::string(buffer); |
---|
| 581 | } |
---|
| 582 | } |
---|
| 583 | |
---|
| 584 | /* Receive Set of Observables */ |
---|
| 585 | memset(buffer, 0, 256); |
---|
| 586 | ReadMessage(commandSocketFD, buffer); |
---|
| 587 | radioInfo->numObservables = atoi(buffer); |
---|
| 588 | |
---|
| 589 | for(size_t i = 0; i < radioInfo->numObservables; i++) { |
---|
| 590 | memset(buffer, 0, 256); |
---|
| 591 | ReadMessage(commandSocketFD, buffer); |
---|
| 592 | oList[i].name = std::string(buffer); |
---|
| 593 | |
---|
| 594 | memset(buffer, 0, 256); |
---|
| 595 | ReadMessage(commandSocketFD, buffer); |
---|
| 596 | oList[i].numAffects = atoi(buffer); |
---|
| 597 | |
---|
| 598 | for(size_t j = 0; j < oList[i].numAffects; j++) { |
---|
| 599 | memset(buffer, 0, 256); |
---|
| 600 | ReadMessage(commandSocketFD, buffer); |
---|
| 601 | // TODO for + if{break} = while? |
---|
| 602 | for(size_t k = 0; k < radioInfo->numUtilities; k++) { |
---|
| 603 | if(uList[k].name == std::string(buffer)){ |
---|
| 604 | oList[i].affection_list[j].u = &uList[k]; |
---|
| 605 | break; |
---|
| 606 | } |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | memset(buffer, 0, 256); |
---|
| 610 | ReadMessage(commandSocketFD, buffer); |
---|
| 611 | oList[i].affection_list[j].relation = std::string(buffer); |
---|
| 612 | } |
---|
| 613 | } |
---|
| 614 | |
---|
| 615 | SendMessage(commandSocketFD, "receive_config_ack"); |
---|
| 616 | |
---|
| 617 | BuildCognitiveEngine(); |
---|
| 618 | } |
---|
| 619 | |
---|
| 620 | void |
---|
| 621 | CognitiveEngine::ReceiveExperience() |
---|
| 622 | { |
---|
| 623 | LOG("Cognitive Engine:: Receiving Experience Report.\n"); |
---|
| 624 | char buffer[256]; |
---|
| 625 | uint32_t numberExp; |
---|
| 626 | |
---|
| 627 | /* Receive number of experience entries */ |
---|
| 628 | memset(buffer, 0, 256); |
---|
| 629 | ReadMessage(commandSocketFD, buffer); |
---|
| 630 | numberExp = atoi(buffer); |
---|
| 631 | |
---|
| 632 | LOG("Cognitive Engine:: Waiting for %i number of entries.\n", numberExp); |
---|
| 633 | |
---|
| 634 | SendMessage(commandSocketFD, "receive_exp_ack"); |
---|
| 635 | } |
---|
| 636 | |
---|
| 637 | Parameter* |
---|
| 638 | CognitiveEngine::GetSolution(Observable *observables, Parameter *currentParameters) |
---|
| 639 | { |
---|
| 640 | LOG("Cognitive Engine:: Generating solution.\n"); |
---|
| 641 | |
---|
| 642 | char *searchNames[radioInfo->numUtilities]; |
---|
| 643 | |
---|
| 644 | for(size_t i = 0; i < radioInfo->numUtilities; i++) { |
---|
| 645 | searchNames[i] = (char*)observables[i].name.c_str(); |
---|
| 646 | } |
---|
| 647 | |
---|
| 648 | float searchVals[radioInfo->numUtilities]; |
---|
| 649 | |
---|
| 650 | for(size_t i = 0; i < radioInfo->numUtilities; i++) { |
---|
| 651 | searchVals[i] = uList[i].target; |
---|
| 652 | } |
---|
| 653 | |
---|
| 654 | uint32_t numberColumns = |
---|
| 655 | radioInfo->numUtilities + |
---|
| 656 | radioInfo->numParameters + |
---|
| 657 | radioInfo->numObservables + 1; |
---|
| 658 | |
---|
| 659 | float returnValues[numberColumns]; |
---|
| 660 | |
---|
| 661 | int searchOps[radioInfo->numUtilities]; |
---|
| 662 | for(size_t i = 0; i < radioInfo->numUtilities; i++) { |
---|
| 663 | |
---|
| 664 | /* If the goal is to maximum, set the search operation to |
---|
| 665 | * return values greater than the target. |
---|
| 666 | * |
---|
| 667 | * If the goal is to minimize, set the search operation to |
---|
| 668 | * return values less than the target. |
---|
| 669 | */ |
---|
| 670 | if(strcmp(uList[i].goal.c_str(), "max") == 0) { |
---|
| 671 | searchOps[i] = GT; |
---|
| 672 | } else if(strcmp(uList[i].goal.c_str(), "min") == 0) { |
---|
| 673 | searchOps[i] = LT; |
---|
| 674 | } |
---|
| 675 | } |
---|
| 676 | |
---|
| 677 | /* CBR specific call */ |
---|
| 678 | uint32_t rc = cbr_search(myCBR, searchNames, searchOps, searchVals, |
---|
| 679 | radioInfo->numUtilities, returnValues); |
---|
| 680 | |
---|
| 681 | if(rc == 0){ |
---|
| 682 | /* Adapt the returned parameters to meet the objective */ |
---|
| 683 | LOG("Cognitive Engine:: Found\n"); |
---|
| 684 | |
---|
| 685 | /* Should do a random adaptation.. */ |
---|
| 686 | if(returnValues[numberColumns-1] < 0) { |
---|
| 687 | returnValues[2] = returnValues[2] - 15; |
---|
| 688 | } else { |
---|
| 689 | returnValues[2] = returnValues[2] + 15; |
---|
| 690 | } |
---|
| 691 | } else if(rc == 31337) { |
---|
| 692 | LOG("Cognitive Engine:: Not Found.\n"); |
---|
| 693 | /* No rows in the CBR, pick default parameters */ |
---|
| 694 | /* Currently this is hard coded and implementation specific! */ |
---|
| 695 | returnValues[2] = currentParameters[0].value + 5; |
---|
| 696 | |
---|
| 697 | } else { |
---|
| 698 | LOG("Cognitive Engine:: Search return an invalid value.\n"); |
---|
| 699 | } |
---|
| 700 | |
---|
| 701 | size_t returnValueIndex = 0; |
---|
| 702 | for(size_t i = 0; i < radioInfo->numUtilities; i++) { |
---|
| 703 | uList[i].value = returnValues[returnValueIndex]; |
---|
| 704 | returnValueIndex++; |
---|
| 705 | } |
---|
| 706 | for(size_t i = 0; i < radioInfo->numParameters; i++) { |
---|
| 707 | pList[i].value = returnValues[returnValueIndex]; |
---|
| 708 | returnValueIndex++; |
---|
| 709 | } |
---|
| 710 | for(size_t i = 0; i < radioInfo->numObservables; i++) { |
---|
| 711 | oList[i].value = returnValues[returnValueIndex]; |
---|
| 712 | returnValueIndex++; |
---|
| 713 | } |
---|
| 714 | returnValues[returnValueIndex] = 0; |
---|
| 715 | |
---|
| 716 | char *allNames[numberColumns]; |
---|
| 717 | size_t allNameIndex = 0; |
---|
| 718 | for(size_t i = 0; i < radioInfo->numUtilities; i++) { |
---|
| 719 | allNames[allNameIndex] = (char*)uList[i].name.c_str(); |
---|
| 720 | returnValues[allNameIndex] = uList[i].target; |
---|
| 721 | allNameIndex++; |
---|
| 722 | } |
---|
| 723 | for(size_t i = 0; i < radioInfo->numParameters; i++) { |
---|
| 724 | allNames[allNameIndex] = (char*)pList[i].name.c_str(); |
---|
| 725 | allNameIndex++; |
---|
| 726 | } |
---|
| 727 | for(size_t i = 0; i < radioInfo->numObservables; i++) { |
---|
| 728 | allNames[allNameIndex] = (char*)oList[i].name.c_str(); |
---|
| 729 | returnValues[allNameIndex] = 0; |
---|
| 730 | allNameIndex++; |
---|
| 731 | } |
---|
[418] | 732 | allNames[allNameIndex] = (char *) "utility"; |
---|
[417] | 733 | |
---|
| 734 | // Add row to CBR. |
---|
| 735 | cbr_add_row(myCBR, allNames, returnValues, returnValueIndex+1); |
---|
| 736 | |
---|
| 737 | return pList; |
---|
| 738 | } |
---|
| 739 | |
---|
| 740 | |
---|
| 741 | Parameter* |
---|
| 742 | CognitiveEngine::GetSolution(Observable *observables, \ |
---|
| 743 | Parameter *currentParameters, std::string service) |
---|
| 744 | { |
---|
| 745 | LOG("Cognitive Engine:: Generating solution for %s service.\n", service.c_str()); |
---|
| 746 | |
---|
| 747 | return pList; |
---|
| 748 | } |
---|
| 749 | |
---|
| 750 | |
---|
| 751 | void |
---|
| 752 | CognitiveEngine::ReceiveFeedback(Observable *observables, Parameter *parameters, \ |
---|
| 753 | std::string service) |
---|
| 754 | { |
---|
| 755 | LOG("Cognitive Engine:: Receiving feedback.\n"); |
---|
| 756 | } |
---|
| 757 | |
---|
| 758 | |
---|
| 759 | void |
---|
| 760 | CognitiveEngine::BuildCognitiveEngine() |
---|
| 761 | { |
---|
| 762 | char filename[] = {"ex1"}; |
---|
| 763 | char tablename[] = {"data"}; |
---|
| 764 | |
---|
| 765 | uint32_t numberColumns = |
---|
| 766 | radioInfo->numUtilities + |
---|
| 767 | radioInfo->numParameters + |
---|
| 768 | radioInfo->numObservables + 1; |
---|
| 769 | |
---|
| 770 | char *cols[numberColumns]; |
---|
| 771 | |
---|
| 772 | size_t columnIndex = 0; |
---|
| 773 | for (size_t i = 0; i < radioInfo->numUtilities; i++){ |
---|
| 774 | cols[columnIndex] = (char*)uList[i].name.c_str(); |
---|
| 775 | columnIndex++; |
---|
| 776 | } |
---|
| 777 | for (size_t i = 0; i < radioInfo->numParameters; i++){ |
---|
| 778 | cols[columnIndex] = (char*)pList[i].name.c_str(); |
---|
| 779 | columnIndex++; |
---|
| 780 | } |
---|
| 781 | for (size_t i = 0; i < radioInfo->numObservables; i++){ |
---|
| 782 | cols[columnIndex] = (char*)oList[i].name.c_str(); |
---|
| 783 | columnIndex++; |
---|
| 784 | } |
---|
[418] | 785 | cols[columnIndex] = (char *)"utility"; |
---|
[417] | 786 | |
---|
| 787 | myCBR = cbr_create(filename, tablename, cols, numberColumns); |
---|
| 788 | } |
---|
| 789 | |
---|