public void doXfer()
{
bool loop = true;
while (loop)
{
loop = false;
if (inState == InState.RecvHdr)
{
int r = Base.SockRead(sock, inBuf, inPos, inBuf.Length - inPos);
if (r > 0)
{
loop = true;
inPos += r;
if (inPos == inBuf.Length)
{
inMsg = new AnpMsg();
UInt32 size = 0;
AnpMsg.ParseHdr(inBuf, ref inMsg.Major, ref inMsg.Minor, ref inMsg.Type, ref inMsg.ID, ref size);
if (size > AnpMsg.MaxSize)
{
throw new AnpException("ANP message is too large");
}
if (size > 0)
{
inState = InState.RecvPayload;
inBuf = new byte[size];
inPos = 0;
}
else
{
inState = InState.Received;
}
}
}
}
if (inState == InState.RecvPayload)
{
int r = Base.SockRead(sock, inBuf, inPos, inBuf.Length - inPos);
if (r > 0)
{
loop = true;
inPos += r;
if (inPos == inBuf.Length)
{
inMsg.Elements = AnpMsg.ParsePayload(inBuf);
inState = InState.Received;
}
}
}
if (outState == OutState.Sending)
{
int r = Base.SockWrite(sock, outBuf, outPos, outBuf.Length - outPos);
if (r > 0)
{
loop = true;
outPos += r;
if (outPos == outBuf.Length)
{
outState = OutState.NoPacket;
break;
}
}
}
}
}