public int RecvTestPacket(ref ushort pktType, ref int seq, byte[] payload, ref int payloadSize){
var bufSize = m_recvBuf.data.Length;
var recvRet = RecvFrom(m_recvBuf.data, 0, ref bufSize, SocketFlags.None, ref m_recvAddr);
if((m_lastNetError == SocketError.Success) && (recvRet >= HEADER_SIZE)){
m_recvBuf.position = 0;
var mc = AmNetUtil.ntohl(m_recvBuf.readUnsignedInt());
if(mc != MAGIC_COOKIE){
m_lastNetError = SocketError.SocketError;
}
else {
pktType = AmNetUtil.ntohs(m_recvBuf.readUnsignedShort());
var pktlen = AmNetUtil.ntohs(m_recvBuf.readUnsignedShort());
if(payloadSize < (pktlen - HEADER_SIZE)){
m_lastNetError = SocketError.SocketError;
}
else {
payloadSize = (int)pktlen - (int)HEADER_SIZE;
seq = AmNetUtil.ntohl(m_recvBuf.readInt());
if(payloadSize > 0){
AmByteArray.Memcpy(payload, m_recvBuf, payloadSize);
}
m_lastNetError = SocketError.Success;
}
}
}
return recvRet;
}
public int SendTestPacket(ushort pktType, int seq, byte[] payload, int payloadSize){
var pkt = m_sendBuf;
int len = 0;
pkt.position = 0;
pkt.writeUnsignedInt(AmNetUtil.htonl(MAGIC_COOKIE)); len += 4;
//pkt.writeUnsignedInt(MAGIC_COOKIE); len += 4;
pkt.writeUnsignedShort(AmNetUtil.htons(MSG_TYPE_ECHO)); len += 2;
pkt.writeUnsignedShort(AmNetUtil.htons((ushort)0)); len += 2;
pkt.writeInt(AmNetUtil.htonl(seq)); len += 4;
if(payloadSize > 0){
AmByteArray.Memcpy(pkt, payload, payloadSize); len += payloadSize;
}
pkt.position = 6;
pkt.writeUnsignedShort(AmNetUtil.htons((ushort)len));
return SendTo(pkt.data, 0, ref len, SocketFlags.None, m_sendAddr);
}
