func (this *DasProtocol) ReadPacket(goconn *gotcp.Conn) (gotcp.Packet, error) {
conn := goconn.GetRawConn()
for {
data := make([]byte, 1024)
readLengh, err := conn.Read(data)
if err != nil { // EOF, or worse
return nil, err
}
if readLengh == 0 { // Connection maybe cloased by the client
return nil, gotcp.ErrConnClosing
} else {
goconn.GetRecvBytes().Write(data[:readLengh])
fmt.Println(goconn.GetRecvBytes().Bytes())
if goconn.GetRecvBytes().Bytes()[0] == 0xBA ||
goconn.GetRecvBytes().Bytes()[0] == 0xBB ||
goconn.GetRecvBytes().Bytes()[0] == 0xBC {
if goconn.GetRecvBytes().Len() >= 8 {
cmdtype, _ := goconn.GetRecvBytes().ReadByte()
if cmdtype == 0xBA {
result := goconn.GetRecvBytes().Next(6) // cmdtype + result + serialid
goconn.GetRecvBytes().Next(1)
return NewDasPacket(0xBA, result), nil
} else if cmdtype == 0xBB {
mac := goconn.GetRecvBytes().Next(6)
goconn.GetRecvBytes().Next(1)
return NewDasPacket(0xBB, mac), nil
} else if cmdtype == 0xBC {
mac := goconn.GetRecvBytes().Next(6)
goconn.GetRecvBytes().Next(1)
return NewDasPacket(0xBC, mac), nil
}
} else {
return nil, gotcp.ErrReadHalf
}
} else {
goconn.GetRecvBytes().Reset()
return nil, gotcp.ErrReadHalf
}
}
}
}