Example: Real-Time Mobile Robot Control with Mobile Agents
service_provider_2
<?xml version="1.0"?> <!DOCTYPE myMessage SYSTEM "gafmessage.dtd"> <GAF_MESSAGE> <MESSAGE message="MOBILE_AGENT"> <MOBILE_AGENT> <AGENT_DATA> <NAME>service_provider_1</NAME> <OWNER>IEL</OWNER> <HOME>10.0.0.11:5050</HOME> <TASKS task="1" num="0"> <TASK num="0" persistent="1" return="no-return" complete="0" server="10.0.0.15:5050"> </TASK> <AGENT_CODE> <![CDATA[ #define BR_IRGAIN 10 #define fwSpeed 50 int Connections_A[9] = {5, 1, 2, 5, -15, -6, -2, 2, 7}; int Connections_B[9] = {2, -2, -6, -15, 5, 2, 1, 5, 7}; struct Robot { int tabsens[9]; int left_speed; int right_speed; }; int RobotBehaviour(struct Robot *system) { long int lspeed16, rspeed16; int i; lspeed16 = 0; rspeed16 = 0; for(i=0; i<9; i++) { lspeed16 -= Connections_B[i] * system->tabsens[i]; rspeed16 -= Connections_A[i] * system->tabsens[i]; } system->left_speed = ((lspeed16 / BR_IRGAIN) + fwSpeed); system->right_speed = ((rspeed16 / BR_IRGAIN) + fwSpeed); if(system->left_speed > 0 && system->left_speed < 30) system->left_speed = 30; if(system->left_speed < 0 && system->left_speed > -30) system->left_speed = -30; if(system->right_speed > 0 && system->right_speed < 30) system->right_speed = 30; if(system->right_speed < 0 && system->right_speed > -30) system->right_speed = -30; if(system->left_speed > 60 || system->left_speed < -60) system->left_speed = 0; if(system->right_speed > 60 || system->right_speed < -60) system->right_speed = 0; return 0; } int main(int arc, char *argv[]) { char **service; int num = 1, i, agent_id, mutex_id = 55; MCAgent_t agent; service = (char **)malloc(sizeof(char *)*num); for(i=0; i<num; i++) { service[i] = (char *)malloc(sizeof(char)*20); } strcpy(service[0], "RobotBehaviour"); agent = mc_FindAgentByName("service_provider_1"); agent_id = mc_GetAgentID(agent); mc_MutexLock(mutex_id); mc_DeregisterService(agent_id, service[0]); mc_RegisterService(mc_current_agent, service, num); mc_MutexUnlock(mutex_id); printf("Service provider 2 has arrived.\n"); printf("Services provided:\n"); for(i=0; i<num; i++) { printf("%s\n", service[i]); } for(i=0; i<num; i++) { free(service[i]); } free(service); return 0; } ]]> </AGENT_CODE> </TASKS> </AGENT_DATA> </MOBILE_AGENT> </MESSAGE> </GAF_MESSAGE> |
Integration Engineering Laboratory | UCD MTU Sandia |