1 | #include <stdio.h> |
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2 | #include <sys/types.h> |
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3 | #include <sys/socket.h> |
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4 | #include <netinet/in.h> |
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5 | #include <netdb.h> |
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6 | #include <iostream> |
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7 | |
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8 | using namespace std; |
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9 | |
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10 | struct CE_Info { |
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11 | int numUtilities; |
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12 | int numParameters; |
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13 | int numObservables; |
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14 | }; |
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15 | |
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16 | struct Utility { |
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17 | char name[50]; |
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18 | char units[50]; |
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19 | char goal[50]; |
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20 | /* string name; |
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21 | string units; |
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22 | string goal;*/ |
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23 | float target; |
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24 | }; |
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25 | |
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26 | struct Affect { |
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27 | Utility u; |
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28 | //string relation; |
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29 | char relation[50]; |
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30 | }; |
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31 | |
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32 | struct Parameter { |
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33 | /*string name; |
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34 | string units;*/ |
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35 | char name[50]; |
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36 | char units[50]; |
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37 | float min; |
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38 | int numAffects; |
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39 | Affect affection_list[10]; |
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40 | float max; |
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41 | float step; |
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42 | }; |
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43 | |
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44 | struct Observable { |
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45 | //string name; |
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46 | char name[50]; |
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47 | Affect affection_list[10]; |
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48 | int numAffects; |
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49 | }; |
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50 | |
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51 | // error handling |
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52 | void error(char *msg) |
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53 | { |
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54 | perror(msg); |
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55 | exit(0); |
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56 | } |
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57 | |
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58 | void ReadMessage(int socket,char * buffer) { |
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59 | int i,n; |
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60 | |
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61 | n = recv(socket,buffer,256,MSG_PEEK); |
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62 | for(i=0;i<256;i++){ |
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63 | if(strcmp(&buffer[i],"\0") == 0) break; |
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64 | } |
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65 | n = recv(socket,buffer,i+1,0); |
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66 | if (n < 0) |
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67 | error("ERROR reading from socket"); |
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68 | // printf("ReadMessage:%s %d\n",buffer,n); |
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69 | } |
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70 | |
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71 | |
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72 | int GetUtility(int sockfd, Utility uList[], CE_Info *ce_info) |
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73 | { |
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74 | char buffer[256]; |
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75 | int i; |
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76 | |
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77 | // read unitilities |
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78 | // numUtilities |
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79 | bzero(buffer,256); |
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80 | ReadMessage(sockfd,buffer); |
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81 | ce_info->numUtilities = atoi(buffer); |
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82 | //printf("number of utilities: %d\n", ce_info->numUtilities); |
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83 | |
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84 | for (i = 0; i < ce_info->numUtilities; i++){ |
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85 | bzero(buffer,256); |
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86 | ReadMessage(sockfd,buffer); |
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87 | //printf("Name: %s\n", buffer); |
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88 | strcpy(uList[i].name, buffer); |
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89 | |
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90 | bzero(buffer,256); |
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91 | ReadMessage(sockfd,buffer); |
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92 | //printf("Units: %s\n", buffer); |
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93 | strcpy(uList[i].units, buffer); |
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94 | |
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95 | bzero(buffer,256); |
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96 | ReadMessage(sockfd,buffer); |
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97 | //printf("Goal: %s\n", buffer); |
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98 | strcpy(uList[i].goal, buffer); |
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99 | |
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100 | bzero(buffer,256); |
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101 | ReadMessage(sockfd,buffer); |
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102 | //printf("Target: %s\n", buffer); |
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103 | uList[i].target = atof(buffer); |
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104 | } |
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105 | return 1; |
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106 | } |
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107 | |
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108 | |
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109 | int GetParameter(int sockfd, Parameter pList[], CE_Info *ce_info) |
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110 | { |
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111 | char buffer[256]; |
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112 | int i, j; |
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113 | |
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114 | // numParameters |
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115 | bzero(buffer,256); |
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116 | ReadMessage(sockfd,buffer); |
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117 | ce_info->numParameters = atoi(buffer); |
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118 | //printf("number of parameters: %d\n", ce_info->numParameters); |
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119 | |
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120 | for (i = 0; i < ce_info->numParameters; i++){ |
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121 | bzero(buffer,256); |
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122 | ReadMessage(sockfd,buffer); |
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123 | //printf("Name: %s\n", buffer); |
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124 | strcpy(pList[i].name, buffer); |
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125 | |
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126 | bzero(buffer,256); |
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127 | ReadMessage(sockfd,buffer); |
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128 | //printf("Units: %s\n", buffer); |
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129 | strcpy(pList[i].units, buffer); |
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130 | |
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131 | bzero(buffer,256); |
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132 | ReadMessage(sockfd,buffer); |
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133 | //printf("Min: %s\n", buffer); |
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134 | pList[i].min = atof(buffer); |
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135 | |
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136 | bzero(buffer,256); |
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137 | ReadMessage(sockfd,buffer); |
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138 | //printf("Max: %s\n", buffer); |
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139 | pList[i].max = atof(buffer); |
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140 | |
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141 | bzero(buffer,256); |
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142 | ReadMessage(sockfd,buffer); |
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143 | //printf("Step: %s\n", buffer); |
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144 | pList[i].step = atof(buffer); |
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145 | |
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146 | // numAffects |
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147 | bzero(buffer,256); |
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148 | ReadMessage(sockfd,buffer); |
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149 | pList[i].numAffects = atoi(buffer); |
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150 | //printf("number of affects: %d\n", pList[i].numAffects); |
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151 | |
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152 | for (j = 0; j < pList[i].numAffects; j++){ |
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153 | bzero(buffer,256); |
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154 | ReadMessage(sockfd,buffer); |
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155 | //printf("Utility name: %s\n", buffer); |
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156 | strcpy(pList[i].affection_list[j].u.name, buffer); |
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157 | |
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158 | bzero(buffer,256); |
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159 | ReadMessage(sockfd,buffer); |
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160 | //printf("Relation: %s\n", buffer); |
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161 | strcpy(pList[i].affection_list[j].relation, buffer); |
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162 | } |
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163 | } |
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164 | return 1; |
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165 | } |
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166 | |
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167 | |
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168 | int GetObservable(int sockfd, Observable oList[], CE_Info *ce_info) |
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169 | { |
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170 | char buffer[256]; |
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171 | int i,j; |
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172 | |
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173 | // numParameters |
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174 | bzero(buffer,256); |
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175 | ReadMessage(sockfd,buffer); |
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176 | ce_info->numObservables = atoi(buffer); |
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177 | //printf("number of observables: %d\n", ce_info->numObservables); |
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178 | |
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179 | for (i = 0; i < ce_info->numObservables; i++){ |
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180 | bzero(buffer,256); |
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181 | ReadMessage(sockfd,buffer); |
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182 | //printf("Name: %s\n", buffer); |
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183 | strcpy(oList[i].name, buffer); |
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184 | |
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185 | // numAffects |
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186 | bzero(buffer,256); |
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187 | ReadMessage(sockfd,buffer); |
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188 | oList[i].numAffects = atoi(buffer); |
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189 | //printf("number of affects: %d\n", oList[i].numAffects); |
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190 | |
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191 | for (j = 0; j < oList[i].numAffects; j++){ |
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192 | bzero(buffer,256); |
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193 | ReadMessage(sockfd,buffer); |
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194 | //printf("Utility name: %s\n", buffer); |
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195 | strcpy(oList[i].affection_list[j].u.name, buffer); |
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196 | |
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197 | bzero(buffer,256); |
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198 | ReadMessage(sockfd,buffer); |
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199 | //printf("Relation: %s\n", buffer); |
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200 | strcpy(oList[i].affection_list[j].relation, buffer); |
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201 | } |
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202 | } |
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203 | return 1; |
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204 | } |
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205 | |
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206 | |
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207 | int GetXMLFromServer(int sockfd, Utility uList[], Parameter pList[], |
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208 | Observable oList[], CE_Info *ce_info) |
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209 | { |
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210 | // get utilities |
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211 | GetUtility(sockfd, uList, ce_info); |
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212 | |
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213 | // get parameters |
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214 | GetParameter(sockfd, pList, ce_info); |
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215 | |
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216 | // read obervables |
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217 | GetObservable(sockfd, oList, ce_info); |
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218 | |
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219 | printf("xml reception done\n"); |
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220 | |
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221 | return 1; |
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222 | } |
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223 | |
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224 | void print_current_config(Utility uList[], Parameter pList[], |
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225 | Observable oList[], CE_Info * ce_info) |
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226 | { |
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227 | int i = 0; |
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228 | int j = 0; |
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229 | |
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230 | // utilities |
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231 | for(i = 0; i < ce_info->numUtilities ; i++) { |
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232 | cout << "Utility: " << uList[i].name << endl; |
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233 | cout << " Units: " << uList[i].units << endl; |
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234 | cout << " Goal: " << uList[i].goal << endl; |
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235 | cout << " Target: " << uList[i].target << endl; |
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236 | } |
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237 | |
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238 | // parameters |
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239 | for(i = 0; i < ce_info->numParameters; i++) { |
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240 | cout << "Parameter: " << pList[i].name << endl; |
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241 | cout << " Units: " << pList[i].units << endl; |
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242 | cout << " Min: " << pList[i].min << endl; |
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243 | cout << " Max: " << pList[i].max << endl; |
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244 | cout << " Step: " << pList[i].step << endl; |
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245 | for(j = 0; j < pList[i].numAffects; j++) { |
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246 | cout << " Affect: " << pList[i].affection_list[j].u.name << " -> " << pList[i].affection_list[j].relation << endl; |
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247 | } |
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248 | } |
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249 | |
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250 | // observables |
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251 | for(i = 0; i < ce_info->numObservables; i++) { |
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252 | cout << "Observable: " << oList[i].name << endl; |
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253 | for(j = 0; j < oList[i].numAffects; j++) { |
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254 | cout << " Affect: " << oList[i].affection_list[j].u.name << " -> " << oList[i].affection_list[j].relation << endl; |
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255 | } |
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256 | } |
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257 | } |
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258 | |
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259 | |
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260 | // main client socket |
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261 | int main(int argc, char *argv[]) |
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262 | { |
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263 | Utility uList[10]; |
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264 | Parameter pList[10]; |
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265 | Observable oList[10]; |
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266 | CE_Info ce_info; |
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267 | |
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268 | int sockfd, portno; |
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269 | struct sockaddr_in serv_addr; |
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270 | struct hostent *server; |
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271 | |
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272 | // setup client socket connection |
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273 | if (argc < 3) { |
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274 | fprintf(stderr,"usage: %s hostname port\n", argv[0]); |
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275 | exit(0); |
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276 | } |
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277 | // server name |
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278 | server = gethostbyname(argv[1]); |
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279 | if (server == NULL) { |
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280 | fprintf(stderr,"ERROR, no such host\n"); |
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281 | exit(0); |
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282 | } |
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283 | // port no. |
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284 | portno = atoi(argv[2]); |
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285 | // socket file descriptor |
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286 | sockfd = socket(AF_INET, SOCK_STREAM, 0); |
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287 | if (sockfd < 0) |
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288 | error("ERROR opening socket"); |
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289 | // initiate struct socketaddr_in |
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290 | bzero((char *) &serv_addr, sizeof(serv_addr)); |
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291 | serv_addr.sin_family = AF_INET; |
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292 | serv_addr.sin_port = htons(portno); |
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293 | bcopy((char *)server->h_addr, |
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294 | (char *)&serv_addr.sin_addr.s_addr, |
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295 | server->h_length); |
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296 | // cast sockaddr_in to sockaddr |
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297 | if (connect(sockfd,(struct sockaddr *)&serv_addr,sizeof(serv_addr)) < 0) |
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298 | error("ERROR connecting"); |
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299 | |
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300 | // get xml info from server |
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301 | GetXMLFromServer(sockfd, uList, pList, oList, &ce_info); |
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302 | |
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303 | //printf("utility:\n name: %s, units: %s, goal: %s, target: %f\n", |
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304 | // uList[0].name, uList[0].units, uList[0].goal, uList[0].target); |
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305 | |
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306 | print_current_config(uList, pList, oList, &ce_info); |
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307 | |
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308 | |
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309 | return 0; |
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310 | } |
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