[r919]: / branches / develop / mqttsparkplug / mqttsparkplug / Sparkplug™ MQTT edge and host / Function Blocks / FB_Payload_1 / FB_Payload / svnobj  Maximize  Restore  History

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                            //This IF statement
IF xDecode AND xEncode THEN //ERROR
    xDecodeDone  := FALSE;
    xDecodeBusy  := FALSE;
    xDecodeError := TRUE;
    eDecodeError := ERROR.PayloadYouCantDoBothAtOnce;
    xEncodeDone  := FALSE;
    xEncodeBusy  := FALSE;
    xEncodeError := TRUE;
    eEncodeError := ERROR.PayloadYouCantDoBothAtOnce;
    //OK, now we are listening to the user as to how many bytes in the payload
    _diPayloadSize := protobufBlobSize;
    SetArrayBounds();
    eDecodeState := PayloadDecodeStates.payload_getmember;
                        i            := _protobufBlobLower + _diPayloadSize - 1; //break out of FOR
                        eDecodeState := PayloadDecodeStates.payload_gettimestamp;
                        eDecodeState := PayloadDecodeStates.payload_getmetric;
                        eDecodeState := PayloadDecodeStates.payload_getseq;
                        eDecodeState := PayloadDecodeStates.payload_getUuid;
                        eDecodeState := PayloadDecodeStates.payload_getBody;
                ELSE //extension... error
                    xDecodeError := TRUE;
                    i            := _protobufBlobLower + _diPayloadSize - 1; //break out of FOR
                END_CASE
            PayloadDecodeStates.payload_gettimestamp:
                _xHasTimeStamp := TRUE;
                eDecodeState   := PayloadDecodeStates.payload_getmember;
            PayloadDecodeStates.payload_getmetric:
                recentlyClaimedMetric REF= AddMetricBlank( eError => eDecodeError );
                IF eDecodeError = ERROR.NO_ERROR THEN
                    THIS^.recentlyClaimedMetric( xDecode := TRUE,
                                                 protobufBlobMaxIndex := _protobufBlobLower + _diPayloadSize - 1,
                                                 ProtobufBlobIndex := i,
                                                 xDecodeDone =>,
                                                 xDecodeError =>,
                        //SUCCESS! the latest Metric has now been decoded
                        eDecodeState := PayloadDecodeStates.payload_getmember;
                    ELSE
                        IF recentlyClaimedMetric.xDecodeError THEN
                            eDecodeError := ERROR.PayloadMetricBusyButMultiCycleNotYetImplemented;
                        END_IF
                    i := _protobufBlobLower + _diPayloadSize - 1; //break out of FOR
                END_IF;
            PayloadDecodeStates.payload_getseq:
                _xHasSeq     := TRUE;
                eDecodeState := PayloadDecodeStates.payload_getmember;
            PayloadDecodeStates.payload_getUuid:
                _xHasUuid    := TRUE;
                DecodeNextBinaryData( numBytes => _diHasBody_bytes,
            eDecodeError := ERROR.OhMy_ThatShouldNotHaveHappened
            i := _protobufBlobLower + _diPayloadSize - 1; //break out of FOR   NO IDEA WHAT TO DO HERE
        END_CASE
    END_FOR
    eDecodeState := PayloadDecodeStates.idle;
    xDecodeDone  := NOT xDecodeError;
END_IF;
    //NOTE: BLOB Data will not be initialized to 00.
    InitializeBlob();
    //Encode Timestamp (Field Number 1)
        dviTemp.uliDateTime := _uliTimestamp;
        eEncodeError        := EncodeNextVarInt( ValueToEncode := dviTemp,
                                                 ProtobufFieldNumber := 1 );
    END_IF;
    _Metrics.ItterateRestart( HasNext => _COL_HasNext );
        _Metrics.ItterateNext( itfElement => _COL_Element,
        IF __QUERYPOINTER( _COL_Element,
            nextMetricToEncode^( xDecode := FALSE,
                                 ProtobufBlobIndex := i,
                                 protobufBlobMaxIndex := _protobufBlobUpper,
                                 xDecodeDone =>,
                                 xDecodeError =>,
                                 xEncodeDone =>,
                                 xEncodeError => xEncodeError,
                                 eEncodeError => eEncodeError );
    END_WHILE
    IF eEncodeError = ERROR.NO_ERROR AND _xHasSeq THEN
    //Encode UUID
    //Encode Body
    IF eEncodeError = ERROR.NO_ERROR AND _xHasBody THEN
    _diPayloadSize   := i - _protobufBlobLower;
    //DONE :)
    xEncodeBusy := FALSE;
{a9ed5b7e-75c5-4651-af16-d2c27e98cb94}
	It contains code to transform either from or to the raw bytes
	IF BOTH xDecode and xEncode are set, an error will be given for both and nothing will happen
{attribute 'hide'}
VAR_INPUT