Per https://golang.org/pkg/encoding/gob/, “Structs encode and decode only
exported fields.”
The fields of your C struct are unexported in Go, since they start with
lower-case letters.
If the gob package is encoding or decoding the non-array fields of the
struct, *that* is the bug.
On Monday, December 18, 2017 at 8:04:32 AM UTC-5, Tamás Gulácsi wrote:
>
> Use a Go struct for GOB encoding/decoding.
>
> 2017. december 18., hétfő 13:51:26 UTC+1 időpontban Kanika Kakkar a
> következőt írta:
>>
>> I am sending a C structure which looks like this
>>
>> typdef struct
>> {
>> unsigned char field1;
>> unsigned char field2;
>> unsigned char array[10];
>> }complete_data_t;
>>
>> I am encoding this data using GOB and sending as UDP broadcast in a very
>> small network. On the receiver side, all fields are correctly getting
>> parsed but all array elements are coming as zero. I am populating these
>> array elements with a non-zero value at the transmitter side.
>>
>> var data C.complete_data_t
>>
>> Transmitter side:
>> var buffer bytes.Buffer
>> err := gob.NewEncoder(&buffer).Encode(&data)
>> _,err = conn.Write(buffer.Bytes())
>> buffer.Reset()
>>
>> Receiver side:
>> rx_buf := make([]byte, 1024)
>> length,addr,err := conn.ReadFrom(rx_buf)
>> buffer := bytes.NewBuffer(rx_buf[:length])
>> err = gob.NewDecoder(buffer).Decode(&data)
>>
>>
>>
>>
>
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