[77] | 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 | #include <stdlib.h> |
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| 8 | #include <string.h> |
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| 9 | |
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| 10 | #include "cbr.h" |
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| 11 | |
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| 12 | //using namespace std; |
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| 13 | |
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| 14 | struct CE_Info { |
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| 15 | int numUtilities; |
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| 16 | int numParameters; |
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| 17 | int numObservables; |
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| 18 | }; |
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| 19 | |
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| 20 | struct Utility { |
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| 21 | char name[50]; |
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| 22 | char units[50]; |
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| 23 | char goal[50]; |
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| 24 | /* string name; |
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| 25 | string units; |
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| 26 | string goal;*/ |
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| 27 | float target; |
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[79] | 28 | float value; |
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[77] | 29 | }; |
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| 30 | |
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| 31 | struct Affect { |
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| 32 | struct Utility u; |
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| 33 | //string relation; |
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| 34 | char relation[50]; |
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| 35 | }; |
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| 36 | |
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| 37 | struct Parameter { |
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| 38 | /*string name; |
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| 39 | string units;*/ |
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| 40 | char name[50]; |
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| 41 | char units[50]; |
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| 42 | float min; |
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| 43 | int numAffects; |
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| 44 | struct Affect affection_list[10]; |
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| 45 | float max; |
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| 46 | float step; |
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[79] | 47 | float value; |
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[77] | 48 | }; |
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| 49 | |
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| 50 | struct Observable { |
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| 51 | //string name; |
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| 52 | char name[50]; |
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| 53 | struct Affect affection_list[10]; |
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| 54 | int numAffects; |
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[79] | 55 | float value; |
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[77] | 56 | }; |
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| 57 | |
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| 58 | // error handling |
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| 59 | void error(char *msg) |
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| 60 | { |
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| 61 | perror(msg); |
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| 62 | exit(0); |
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| 63 | } |
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| 64 | |
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| 65 | void ReadMessage(int socket,char * buffer) { |
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| 66 | int i,n; |
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| 67 | |
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| 68 | n = recv(socket,buffer,256,MSG_PEEK); |
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| 69 | for(i=0;i<256;i++){ |
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| 70 | if(strcmp(&buffer[i],"\0") == 0) break; |
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| 71 | } |
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| 72 | n = recv(socket,buffer,i+1,0); |
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| 73 | if (n < 0) |
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| 74 | error("ERROR reading from socket"); |
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| 75 | // printf("ReadMessage:%s %d\n",buffer,n); |
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| 76 | } |
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| 77 | |
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| 78 | |
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| 79 | int GetUtility(int sockfd, struct Utility uList[], struct CE_Info *ce_info) |
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| 80 | { |
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| 81 | char buffer[256]; |
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| 82 | int i; |
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| 83 | |
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| 84 | // read unitilities |
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| 85 | // numUtilities |
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| 86 | bzero(buffer,256); |
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| 87 | ReadMessage(sockfd,buffer); |
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| 88 | ce_info->numUtilities = atoi(buffer); |
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| 89 | //printf("number of utilities: %d\n", ce_info->numUtilities); |
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| 90 | |
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| 91 | for (i = 0; i < ce_info->numUtilities; i++){ |
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| 92 | bzero(buffer,256); |
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| 93 | ReadMessage(sockfd,buffer); |
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| 94 | //printf("Name: %s\n", buffer); |
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| 95 | strcpy(uList[i].name, buffer); |
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| 96 | |
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| 97 | bzero(buffer,256); |
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| 98 | ReadMessage(sockfd,buffer); |
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| 99 | //printf("Units: %s\n", buffer); |
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| 100 | strcpy(uList[i].units, buffer); |
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| 101 | |
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| 102 | bzero(buffer,256); |
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| 103 | ReadMessage(sockfd,buffer); |
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| 104 | //printf("Goal: %s\n", buffer); |
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| 105 | strcpy(uList[i].goal, buffer); |
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| 106 | |
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| 107 | bzero(buffer,256); |
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| 108 | ReadMessage(sockfd,buffer); |
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| 109 | //printf("Target: %s\n", buffer); |
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| 110 | uList[i].target = atof(buffer); |
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| 111 | } |
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| 112 | return 1; |
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| 113 | } |
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| 114 | |
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| 115 | |
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| 116 | int GetParameter(int sockfd, struct Parameter pList[], struct CE_Info *ce_info) |
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| 117 | { |
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| 118 | char buffer[256]; |
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| 119 | int i, j; |
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| 120 | |
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| 121 | // numParameters |
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| 122 | bzero(buffer,256); |
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| 123 | ReadMessage(sockfd,buffer); |
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| 124 | ce_info->numParameters = atoi(buffer); |
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| 125 | //printf("number of parameters: %d\n", ce_info->numParameters); |
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| 126 | |
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| 127 | for (i = 0; i < ce_info->numParameters; i++){ |
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| 128 | bzero(buffer,256); |
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| 129 | ReadMessage(sockfd,buffer); |
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| 130 | //printf("Name: %s\n", buffer); |
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| 131 | strcpy(pList[i].name, buffer); |
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| 132 | |
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| 133 | bzero(buffer,256); |
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| 134 | ReadMessage(sockfd,buffer); |
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| 135 | //printf("Units: %s\n", buffer); |
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| 136 | strcpy(pList[i].units, buffer); |
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| 137 | |
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| 138 | bzero(buffer,256); |
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| 139 | ReadMessage(sockfd,buffer); |
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| 140 | //printf("Min: %s\n", buffer); |
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| 141 | pList[i].min = atof(buffer); |
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| 142 | |
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| 143 | bzero(buffer,256); |
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| 144 | ReadMessage(sockfd,buffer); |
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| 145 | //printf("Max: %s\n", buffer); |
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| 146 | pList[i].max = atof(buffer); |
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| 147 | |
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| 148 | bzero(buffer,256); |
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| 149 | ReadMessage(sockfd,buffer); |
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| 150 | //printf("Step: %s\n", buffer); |
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| 151 | pList[i].step = atof(buffer); |
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| 152 | |
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| 153 | // numAffects |
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| 154 | bzero(buffer,256); |
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| 155 | ReadMessage(sockfd,buffer); |
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| 156 | pList[i].numAffects = atoi(buffer); |
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| 157 | //printf("number of affects: %d\n", pList[i].numAffects); |
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| 158 | |
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| 159 | for (j = 0; j < pList[i].numAffects; j++){ |
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| 160 | bzero(buffer,256); |
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| 161 | ReadMessage(sockfd,buffer); |
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| 162 | //printf("Utility name: %s\n", buffer); |
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| 163 | strcpy(pList[i].affection_list[j].u.name, buffer); |
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| 164 | |
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| 165 | bzero(buffer,256); |
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| 166 | ReadMessage(sockfd,buffer); |
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| 167 | //printf("Relation: %s\n", buffer); |
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| 168 | strcpy(pList[i].affection_list[j].relation, buffer); |
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| 169 | } |
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| 170 | } |
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| 171 | return 1; |
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| 172 | } |
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| 173 | |
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| 174 | |
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| 175 | int GetObservable(int sockfd, struct Observable oList[], struct CE_Info *ce_info) |
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| 176 | { |
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| 177 | char buffer[256]; |
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| 178 | int i,j; |
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| 179 | |
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| 180 | // numParameters |
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| 181 | bzero(buffer,256); |
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| 182 | ReadMessage(sockfd,buffer); |
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| 183 | ce_info->numObservables = atoi(buffer); |
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| 184 | //printf("number of observables: %d\n", ce_info->numObservables); |
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| 185 | |
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| 186 | for (i = 0; i < ce_info->numObservables; i++){ |
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| 187 | bzero(buffer,256); |
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| 188 | ReadMessage(sockfd,buffer); |
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| 189 | //printf("Name: %s\n", buffer); |
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| 190 | strcpy(oList[i].name, buffer); |
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| 191 | |
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| 192 | // numAffects |
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| 193 | bzero(buffer,256); |
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| 194 | ReadMessage(sockfd,buffer); |
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| 195 | oList[i].numAffects = atoi(buffer); |
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| 196 | //printf("number of affects: %d\n", oList[i].numAffects); |
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| 197 | |
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| 198 | for (j = 0; j < oList[i].numAffects; j++){ |
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| 199 | bzero(buffer,256); |
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| 200 | ReadMessage(sockfd,buffer); |
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| 201 | //printf("Utility name: %s\n", buffer); |
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| 202 | strcpy(oList[i].affection_list[j].u.name, buffer); |
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| 203 | |
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| 204 | bzero(buffer,256); |
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| 205 | ReadMessage(sockfd,buffer); |
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| 206 | //printf("Relation: %s\n", buffer); |
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| 207 | strcpy(oList[i].affection_list[j].relation, buffer); |
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| 208 | } |
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| 209 | } |
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| 210 | return 1; |
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| 211 | } |
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| 212 | |
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| 213 | |
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[79] | 214 | // setup client socket connection |
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| 215 | int ClientSocket(int argc, char** argv) |
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| 216 | { |
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| 217 | int sockfd; |
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| 218 | int portno; |
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| 219 | struct sockaddr_in serv_addr; |
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| 220 | struct hostent *server; |
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| 221 | |
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| 222 | // setup client socket connection |
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| 223 | if (argc < 3) { |
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| 224 | fprintf(stderr,"usage: %s hostname port\n", argv[0]); |
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| 225 | exit(0); |
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| 226 | } |
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| 227 | // server name |
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| 228 | server = gethostbyname(argv[1]); |
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| 229 | if (server == NULL) { |
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| 230 | fprintf(stderr,"ERROR, no such host\n"); |
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| 231 | exit(0); |
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| 232 | } |
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| 233 | // port no. |
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| 234 | portno = atoi(argv[2]); |
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| 235 | // socket file descriptor |
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| 236 | sockfd = socket(AF_INET, SOCK_STREAM, 0); |
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| 237 | if (sockfd < 0) |
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| 238 | error("ERROR opening socket"); |
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| 239 | // initiate struct socketaddr_in |
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| 240 | bzero((char *) &serv_addr, sizeof(serv_addr)); |
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| 241 | serv_addr.sin_family = AF_INET; |
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| 242 | serv_addr.sin_port = htons(portno); |
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| 243 | bcopy((char *)server->h_addr, |
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| 244 | (char *)&serv_addr.sin_addr.s_addr, |
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| 245 | server->h_length); |
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| 246 | // cast sockaddr_in to sockaddr |
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| 247 | if (connect(sockfd,(struct sockaddr *)&serv_addr,sizeof(serv_addr)) < 0) |
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| 248 | error("ERROR connecting"); |
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| 249 | |
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| 250 | return sockfd; |
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| 251 | } |
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| 252 | |
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| 253 | |
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[77] | 254 | int GetXMLFromServer(int sockfd, struct Utility uList[], struct Parameter pList[], |
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| 255 | struct Observable oList[], struct CE_Info *ce_info) |
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| 256 | { |
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| 257 | // get utilities |
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| 258 | GetUtility(sockfd, uList, ce_info); |
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| 259 | |
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| 260 | // get parameters |
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| 261 | GetParameter(sockfd, pList, ce_info); |
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| 262 | |
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| 263 | // read obervables |
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| 264 | GetObservable(sockfd, oList, ce_info); |
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| 265 | |
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| 266 | printf("xml reception done\n"); |
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| 267 | |
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| 268 | return 1; |
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| 269 | } |
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| 270 | |
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[79] | 271 | |
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| 272 | int SendMessage(int socketfd, char *message) |
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| 273 | { |
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| 274 | int n; |
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| 275 | |
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| 276 | strcat(message, "\0000"); |
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| 277 | // Write message back to client |
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| 278 | //n = write(socketfd,message,(strlen(message)+1)); |
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| 279 | n = send(socketfd,message,(strlen(message)+1),0); |
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| 280 | if (n<0) |
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| 281 | error("Error sending to server\n"); |
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| 282 | else if(n == 0) |
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| 283 | printf("Server closed the socket.\n"); |
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| 284 | |
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| 285 | return n; |
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| 286 | } |
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| 287 | |
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| 288 | |
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| 289 | void print_current_config(struct Utility uList[], |
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| 290 | struct Parameter pList[], |
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| 291 | struct Observable oList[], |
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| 292 | struct CE_Info * ce_info) |
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[77] | 293 | { |
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| 294 | int i = 0; |
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| 295 | int j = 0; |
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| 296 | |
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| 297 | // utilities |
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| 298 | for(i = 0; i < ce_info->numUtilities ; i++) { |
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| 299 | printf("Utility: %s\n", uList[i].name); |
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| 300 | printf(" Units: %s\n", uList[i].units); |
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| 301 | printf(" Goal: %s\n", uList[i].goal); |
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| 302 | printf(" Target: %f\n", uList[i].target); |
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| 303 | /*cout << "Utility: " << uList[i].name << endl; |
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| 304 | cout << " Units: " << uList[i].units << endl; |
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| 305 | cout << " Goal: " << uList[i].goal << endl; |
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| 306 | cout << " Target: " << uList[i].target << endl;*/ |
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| 307 | } |
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| 308 | |
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| 309 | // parameters |
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| 310 | for(i = 0; i < ce_info->numParameters; i++) { |
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| 311 | printf("Paramter: %s\n", pList[i].name); |
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| 312 | printf(" Units: %s\n", pList[i].units); |
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| 313 | printf(" Min: %f\n", pList[i].min); |
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| 314 | printf(" Max: %f\n", pList[i].max); |
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| 315 | printf(" Step: %f\n", pList[i].step); |
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| 316 | /*cout << "Parameter: " << pList[i].name << endl; |
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| 317 | cout << " Units: " << pList[i].units << endl; |
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| 318 | cout << " Min: " << pList[i].min << endl; |
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| 319 | cout << " Max: " << pList[i].max << endl; |
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| 320 | cout << " Step: " << pList[i].step << endl;*/ |
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| 321 | for(j = 0; j < pList[i].numAffects; j++) { |
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| 322 | printf(" Affect: %s -> %s\n", pList[i].affection_list[j].u.name, pList[i].affection_list[j].relation); |
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| 323 | //cout << " Affect: " << pList[i].affection_list[j].u.name << " -> " << pList[i].affection_list[j].relation << endl; |
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| 324 | } |
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| 325 | } |
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| 326 | |
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| 327 | // observables |
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| 328 | for(i = 0; i < ce_info->numObservables; i++) { |
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| 329 | printf("Observable: %s\n", oList[i].name); |
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| 330 | //cout << "Observable: " << oList[i].name << endl; |
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| 331 | for(j = 0; j < oList[i].numAffects; j++) { |
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| 332 | printf(" Affect: %s -> %s\n", oList[i].affection_list[j].u.name, oList[i].affection_list[j].relation); |
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| 333 | //cout << " Affect: " << oList[i].affection_list[j].u.name << " -> " << oList[i].affection_list[j].relation << endl; |
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| 334 | } |
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| 335 | } |
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| 336 | } |
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| 337 | |
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[79] | 338 | int RunCBREngine(struct Utility uList[], struct Parameter pList[], |
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| 339 | struct Observable oList[], struct CE_Info *ce_info, |
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| 340 | int num_cols) |
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[77] | 341 | { |
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[79] | 342 | |
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| 343 | int i; |
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[77] | 344 | |
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[79] | 345 | // get column names |
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| 346 | //char *cols[50]; |
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| 347 | char **cols; |
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| 348 | cols = (char **)malloc(sizeof(char)*num_cols); |
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| 349 | int j = 0; |
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| 350 | for (i = 0; i < ce_info->numUtilities; i++){ |
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| 351 | cols[j] = malloc(strlen(uList[i].name)+1); |
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| 352 | cols[j] = uList[i].name; |
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| 353 | j++; |
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[77] | 354 | } |
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[79] | 355 | for (i = 0; i < ce_info->numParameters; i++){ |
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| 356 | cols[j] = malloc(strlen(pList[i].name)+1); |
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| 357 | cols[j] = pList[i].name; |
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| 358 | j++; |
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[77] | 359 | } |
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[79] | 360 | for (i = 0; i < ce_info->numObservables; i++){ |
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| 361 | cols[j] = malloc(strlen(oList[i].name)+1); |
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| 362 | cols[j] = oList[i].name; |
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| 363 | j++; |
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| 364 | } |
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| 365 | cols[j] = malloc(strlen("utility")+1); |
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| 366 | cols[j] = "utility"; |
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[77] | 367 | |
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[79] | 368 | // sample table entry |
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[77] | 369 | float vals[num_cols]; |
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| 370 | vals[0] = 10e3f; // throughput |
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| 371 | vals[1] = 1; // spectral_efficiency |
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| 372 | vals[2] = 1e-3f; // log10_ber |
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| 373 | vals[3] = 1; // mod_scheme |
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| 374 | vals[4] = -3.0f; // tx_power |
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| 375 | vals[5] = 10.0f; // SNR |
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| 376 | vals[6] = 0.762; // utility |
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| 377 | |
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| 378 | printf("number of columns: %d\n", num_cols); |
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| 379 | printf("column names:"); |
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| 380 | for (i = 0; i<num_cols; i++){ |
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| 381 | printf(" %s",cols[i]); |
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| 382 | } |
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| 383 | printf("\n"); |
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| 384 | |
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| 385 | int rc; |
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| 386 | |
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| 387 | // create cbr database/table |
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[79] | 388 | //printf("create cbr database\n"); |
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[77] | 389 | char filename[] = {"ex1"}, tablename[] = {"data"}; |
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| 390 | cbr mycbr = cbr_create(filename, tablename, cols, num_cols); |
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| 391 | //cbr mycbr = cbr_create("ex1", "data", cols, num_cols); |
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| 392 | |
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| 393 | // add row here |
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[79] | 394 | //printf("add row to cbr table\n"); |
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[77] | 395 | rc = cbr_add_row(mycbr, cols, vals, num_cols); |
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| 396 | |
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| 397 | // print |
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| 398 | printf("cbr table\n"); |
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| 399 | cbr_print(mycbr); |
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| 400 | |
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| 401 | // simple search: find entry where... |
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| 402 | // log10_ber < 1e-2 and SNR > 5 |
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| 403 | char * search_names[] = {"log10_ber", "SNR"}; |
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| 404 | int search_ops[] = {LT, GT}; |
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| 405 | float search_vals[] = {1e-2f, 5.f}; |
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| 406 | float retvals[num_cols]; |
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| 407 | rc = cbr_search(mycbr, search_names, search_ops, |
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| 408 | search_vals, 2, retvals); |
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| 409 | |
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[79] | 410 | j = 0; |
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| 411 | for (i = 0; i < ce_info->numUtilities; i++){ |
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| 412 | uList[i].value = retvals[j]; |
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| 413 | j++; |
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| 414 | } |
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| 415 | for (i = 0; i < ce_info->numParameters; i++){ |
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| 416 | pList[i].value = retvals[j]; |
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| 417 | j++; |
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| 418 | } |
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| 419 | for (i = 0; i < ce_info->numObservables; i++){ |
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| 420 | oList[i].value = retvals[j]; |
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| 421 | j++; |
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| 422 | } |
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| 423 | |
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[77] | 424 | // clean up database |
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[79] | 425 | //printf("clean cbr database\n"); |
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[77] | 426 | cbr_free(mycbr); |
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| 427 | |
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[79] | 428 | return 1; |
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| 429 | } |
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| 430 | |
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| 431 | // main client socket |
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| 432 | int main(int argc, char *argv[]) |
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| 433 | { |
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| 434 | struct Utility uList[10]; |
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| 435 | struct Parameter pList[10]; |
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| 436 | struct Observable oList[10]; |
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| 437 | struct CE_Info ce_info; |
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| 438 | |
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| 439 | // setup client socket connection |
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| 440 | int sockfd; |
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| 441 | sockfd = ClientSocket(argc, argv); |
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[77] | 442 | |
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[79] | 443 | // get xml info from server |
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| 444 | GetXMLFromServer(sockfd, uList, pList, oList, &ce_info); |
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| 445 | print_current_config(uList, pList, oList, &ce_info); |
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[77] | 446 | |
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[79] | 447 | // cbr operation |
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| 448 | unsigned int num_cols; |
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| 449 | // get number of columns |
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| 450 | num_cols = ce_info.numUtilities + ce_info.numParameters; |
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| 451 | num_cols = num_cols + ce_info.numObservables; |
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| 452 | num_cols = num_cols + 1; |
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| 453 | RunCBREngine(uList, pList, oList, &ce_info, num_cols); |
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| 454 | // print out results |
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| 455 | int i; |
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| 456 | printf("search result: "); |
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| 457 | for (i=0;i<ce_info.numUtilities; i++) |
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| 458 | printf("%f, ",uList[i].value); |
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| 459 | for (i=0;i<ce_info.numParameters; i++) |
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| 460 | printf("%f, ",pList[i].value); |
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| 461 | for (i=0;i<ce_info.numObservables; i++) |
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| 462 | printf("%f, ",oList[i].value); |
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| 463 | printf("\n"); |
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| 464 | |
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| 465 | // send results back to server |
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| 466 | char counter[50]; |
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| 467 | char var[50]; |
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| 468 | // utility |
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| 469 | sprintf(counter, "%d", ce_info.numUtilities); |
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| 470 | SendMessage(sockfd, counter); |
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| 471 | // send utilities |
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| 472 | for (i = 0; i < ce_info.numUtilities; i++){ |
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| 473 | sprintf(var, "%f", uList[i].value); |
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| 474 | SendMessage(sockfd, var); |
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| 475 | } |
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| 476 | |
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| 477 | // parameter |
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| 478 | sprintf(counter, "%d", ce_info.numParameters); |
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| 479 | SendMessage(sockfd, counter); |
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| 480 | // send parameters |
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| 481 | for (i = 0; i < ce_info.numParameters; i++){ |
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| 482 | sprintf(var, "%f", pList[i].value); |
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| 483 | SendMessage(sockfd, var); |
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| 484 | } |
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| 485 | |
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| 486 | // observable |
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| 487 | sprintf(counter, "%d", ce_info.numObservables); |
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| 488 | SendMessage(sockfd, counter); |
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| 489 | // send utilities |
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| 490 | for (i = 0; i < ce_info.numObservables; i++){ |
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| 491 | sprintf(var, "%f", oList[i].value); |
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| 492 | SendMessage(sockfd, var); |
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| 493 | } |
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| 494 | |
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| 495 | |
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[77] | 496 | return 0; |
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| 497 | } |
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