int main(int argc, char** argv) { signal(SIGINT, stopHandler); /* catches ctrl-c */ UA_ServerConfig config = UA_ServerConfig_standard; UA_ServerNetworkLayer nl = UA_ServerNetworkLayerTCP(UA_ConnectionConfig_standard, 16664, logger); config.logger = Logger_Stdout; config.networkLayers = &nl; config.networkLayersSize = 1; UA_Server *server = UA_Server_new(config); /* add a variable node to the address space */ UA_VariableAttributes attr; UA_VariableAttributes_init(&attr); UA_Int32 myInteger = 42; UA_Variant_setScalar(&attr.value, &myInteger, &UA_TYPES[UA_TYPES_INT32]); attr.description = UA_LOCALIZEDTEXT("en_US","the answer"); attr.displayName = UA_LOCALIZEDTEXT("en_US","the answer"); UA_NodeId myIntegerNodeId = UA_NODEID_STRING(1, "the.answer"); UA_QualifiedName myIntegerName = UA_QUALIFIEDNAME(1, "the answer"); UA_NodeId parentNodeId = UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER); UA_NodeId parentReferenceNodeId = UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES); UA_Server_addVariableNode(server, myIntegerNodeId, parentNodeId, parentReferenceNodeId, myIntegerName, UA_NODEID_NULL, attr, NULL, NULL); UA_ReadRequest request; UA_ReadRequest_init(&request); UA_ReadValueId rvi; rvi.nodeId = myIntegerNodeId; rvi.attributeId = UA_ATTRIBUTEID_VALUE; rvi.indexRange = UA_STRING_NULL; rvi.dataEncoding = UA_QUALIFIEDNAME(0, "DefaultBinary"); request.timestampsToReturn = UA_TIMESTAMPSTORETURN_NEITHER; request.nodesToReadSize = 1; request.nodesToRead = &rvi; UA_StatusCode retval = UA_STATUSCODE_GOOD; UA_ByteString request_msg; retval |= UA_ByteString_allocBuffer(&request_msg, 1000); UA_ByteString response_msg; retval |= UA_ByteString_allocBuffer(&response_msg, 1000); size_t offset = 0; retval |= UA_encodeBinary(&request, &UA_TYPES[UA_TYPES_READREQUEST], &request_msg, &offset); clock_t begin, end; begin = clock(); UA_ReadRequest rq; UA_ReadResponse rr; for(int i = 0; i < 900000; i++) { offset = 0; retval |= UA_decodeBinary(&request_msg, &offset, &rq, &UA_TYPES[UA_TYPES_READREQUEST]); UA_ReadResponse_init(&rr); Service_Read(server, &adminSession, &rq, &rr); offset = 0; retval |= UA_encodeBinary(&rr, &UA_TYPES[UA_TYPES_READRESPONSE], &response_msg, &offset); UA_ReadRequest_deleteMembers(&rq); UA_ReadResponse_deleteMembers(&rr); } end = clock(); double time_spent = (double)(end - begin) / CLOCKS_PER_SEC; printf("duration was %f s\n", time_spent); printf("retval is %i\n", retval); UA_ByteString_deleteMembers(&request_msg); UA_ByteString_deleteMembers(&response_msg); retval |= UA_Server_run(server, &running); UA_Server_delete(server); nl.deleteMembers(&nl); return (int)retval; }
int main(void) { UA_Client *clt; //client UA_StatusCode retval; UA_ReadRequest req; //read request UA_ReadResponse resp; //response /* * Step 1. * create & init the client */ clt = UA_Client_new(UA_ClientConfig_standard); retval = UA_Client_connect(clt, URL); if(retval != UA_STATUSCODE_GOOD){ UA_Client_delete(clt); return retval; } /* * Step 2. * Create read request */ UA_ReadRequest_init(&req); // memset 0 in req req.nodesToRead = UA_Array_new(1, &UA_TYPES[UA_TYPES_READVALUEID]); req.nodesToReadSize = 1; /* * Step 3. * define which node and attribute to be read */ req.nodesToRead[0].nodeId = UA_NODEID_STRING_ALLOC(1, "the.f****r"); req.nodesToRead[0].attributeId = UA_ATTRIBUTEID_VALUE; /* * Step 4. * call the `UA_Client_Service_read` to read */ UA_ReadResponse_init(&resp); resp = UA_Client_Service_read(clt, req); /* if(resp.responseHeader.serviceResult == UA_STATUSCODE_GOOD && resp.resultsSize > 0 && resp.results[0].hasValue && UA_Variant_isScalar(&resp.results[0].value) && resp.results[0].value.type == &UA_TYPES[UA_TYPES_INT32]) {*/ if(resp.responseHeader.serviceResult == UA_STATUSCODE_GOOD && resp.resultsSize > 0 && resp.results[0].hasValue && UA_Variant_isScalar(&resp.results[0].value) && resp.results[0].value.type == &UA_TYPES[UA_TYPES_STRING]) { UA_String *str = (UA_String *)resp.results[0].value.data; printf("The string : %s\n", str->data); /* UA_Int32 *val = (UA_Int32 *)resp.results[0].value.data; printf("The value is: %d\n", *val);*/ } /* * Step 5. * free resource */ UA_ReadRequest_deleteMembers(&req); UA_ReadResponse_deleteMembers(&resp); UA_Client_disconnect(clt); UA_Client_delete(clt); return UA_STATUSCODE_GOOD; }