bool GeneralSocket::recv(DataPacket& res)
{
res = DataPacket();
UINT32 dataSize;
int received = 0;
while(received < sizeof(dataSize))
{
int tmp = ::recv(this->socket(), (char*)(&dataSize + received), sizeof(dataSize) - received, 0);
if(tmp == SOCKET_ERROR)
{
int err = WSAGetLastError();
dbg("Failed to receive data");
return false;
}
received += tmp;
}
if(dataSize == 0)
return true;
received = 0;
char * data = new char[dataSize];
while((UINT32)received < dataSize)
{
int tmp = ::recv(this->socket(), data + received, dataSize - received, 0);
if(tmp == SOCKET_ERROR)
{
delete[] data;
return false;
}
received += tmp;
}
res = DataPacket(data, dataSize, true);
return true;
}
void QNetworkAccessDebugPipeBackend::closeUpstreamChannel()
{
if (operation() == QNetworkAccessManager::PutOperation)
socket.disconnectFromHost();
else if (operation() == QNetworkAccessManager::PostOperation) {
send(DataPacket());
}
}
//parse NdpDatagram
TInt CNcmNtb16Parser::ParseNcmNtb16NdpDatagram(const TUint8* aBuf, TInt aBufLen)
{
TInt dataLen = aBufLen + (iQueLen==0?(0-iDataOffset):iDataLen);
TInt ret = KErrNone;
OstTraceExt3(TRACE_NORMAL, CNCMNTB16PARSER_PARSENCMNTB16NDPDATAGRAM, "ParseNcmNtb16NdpDatagram:iNdpState=%d, iDataLen=%d, dataLen=%d", iNdpState, iDataLen, dataLen);
switch(iNdpState)
{
case ENcmNtb16ParseNdpStateUninitialized:
{
TUint datagramBound = iNdpDataOffset+ KNcmNtb16NdpDatagramLength;
if (iNdpDataOffset >= iNdpBound || datagramBound > iNth.wBlockLength)
{
//finish this NTB.
Reset(ENcmNtb16TypeResetQueue);
iState = ENcmNtb16ParseStateSkipBytes;
ret = Parse(aBuf, aBufLen);
}
else if (datagramBound <= dataLen)
{
iDatagramIndex = DataTUint16(iNdpDataOffset, aBuf, aBufLen);
iDatagramLength = DataTUint16(iNdpDataOffset+KNcmNtb16NdpDatagramLenOffset, aBuf, aBufLen);
OstTraceExt2(TRACE_NORMAL, CNCMNTB16PARSER_PARSENCMNTB16NDPDATAGRAM_DUP01, "Index=%d, Length=%d", iDatagramIndex, iDatagramLength);
// NULL NDP;
if (iDatagramIndex == 0 || iDatagramLength == 0)
{
Reset(ENcmNtb16TypeResetQueue);
iState = ENcmNtb16ParseStateSkipBytes;
ret = Parse(aBuf, aBufLen);
}
else if (iDatagramIndex + iDatagramLength <= iNth.wBlockLength)
{
TRAPD(err, iPacket.CreateL(iDatagramLength));
if (KErrNone == err)
{
iNdpState = ENcmNtb16ParseNdpStateDatagramed;
ret = ParseNcmNtb16NdpDatagram(aBuf, aBufLen);
}
else
{
iPacket.Free();
iNdpDataOffset += KNcmNtb16NdpDatagramLength;//skip this ethernet frame, do nothing else.
ret = ParseNcmNtb16NdpDatagram(aBuf, aBufLen);
}
}
else
{
//skip this datagram because of overflow.
iNdpDataOffset += KNcmNtb16NdpDatagramLength;
ret = ParseNcmNtb16NdpDatagram(aBuf, aBufLen);
}
}
else
{
ret = QueueBuf(aBuf, aBufLen);
}
}
break;
case ENcmNtb16ParseNdpStateDatagramed:
ret = DataPacket(aBuf, aBufLen);
if (KErrCompletion == ret)
{
iPacket.Pack();
iObserver.ProcessEtherFrame(iPacket);
iNdpDataOffset += KNcmNtb16NdpDatagramLength;
iNdpState = ENcmNtb16ParseNdpStateUninitialized;
ret = ParseNcmNtb16NdpDatagram(aBuf, aBufLen);
}
break;
}
return ret;
}
