Hi,
I'm working on the spotware connect api which uses c# port of the protobuf
library
(https://sandbox-connect.spotware.com/draftref/downloads/spotware-connect-samples.zip).
The prototype of one of the message (ProtoPingReq) is defined as below:
message ProtoPingReq {
> optional ProtoPayloadType payloadType = 1 [default = PING_REQ];
> required uint64 timestamp = 2; // timestamp that will be returned in
> the response
> }
when using the supplied c# sample , the PingReq serialized to :
Data sent: 00 00 00 0E
> Data sent: 08 34 *12 0A* 10 9C DA EC A6 BB C9 D3 E8 08
>
the message length is 0xe and there is payload id (timestamp) - 0x12, and
payload length 0x0A.
However, when serialize using c++:
the packet is
> 00 00 00 0c
08 34 10 f0 d5 fe 81 92 86 e0 e7 01
the length is 0xc (due to the missing payloadid (timestamp) / length) .
I've tried using the latest libproto buf (2.5.0) and later downgraded to
same version of c# project (2.4.1) but the problem remains.
below are code snippet to serialize the PingReq message:
ProtoPingReq pingReq;
>> pingReq.set_payloadtype(PING_REQ);
>> char buf[BUFSZ + 1]; // BUFSZ is 1024
>>
>
>> SYSTEMTIME systemTime;
>> GetLocalTime(&systemTime);
>>
>> FILETIME fileTime;
>> SystemTimeToFileTime(&systemTime, &fileTime);
>>
>> ULARGE_INTEGER largeInteger;
>> largeInteger.LowPart = fileTime.dwLowDateTime;
>> largeInteger.HighPart = fileTime.dwHighDateTime;
>>
>> ULONGLONG ticks = reinterpret_cast<ULONGLONG&>(largeInteger);
>>
>
>
>
> pingReq.set_timestamp(ticks);
>>
>> if(pingReq.SerializeToArray(buf, BUFSZ)) { // output pingReq to
>> buf
>> ::google::protobuf::uint32 size = htonl(pingReq.ByteSize());
>> char* _size = (char*)&size;
>>
>> dump_addr(_size, sizeof(uint32));
>>
>> dump_addr(buf, pingReq.ByteSize());
>> }
>>
>
Compiler is msvc 2012, protobuf version: 2.4.1
thanks,
kee
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