private Task <SecsMessage> SendDataMessageAsync(SecsMessage msg, int systembyte)
{
var token = new TaskCompletionSourceToken(msg, systembyte, MessageType.DataMessage);
if (msg.ReplyExpected)
{
_replyExpectedMsgs[systembyte] = token;
}
var header = new MessageHeader
{
S = msg.S,
F = msg.F,
ReplyExpected = msg.ReplyExpected,
DeviceId = DeviceId,
SystemBytes = systembyte
};
var bufferList = msg.RawDatas.Value;
bufferList[1] = new ArraySegment <byte>(header.EncodeTo(new byte[10]));
var eap = new SocketAsyncEventArgs
{
BufferList = bufferList,
UserToken = token,
};
eap.Completed += _sendDataMessageCompleteHandler;
sockClient.Send(eap.BufferList.ToArray(), SocketFlags.None);
//if (!sockClient.SendAsync(eap))
// SendDataMessageCompleteHandler(sockClient, eap);
return(token.Task);
}