public Task <string> ReceiveQuery(ReceivedQuery query)
{
var item = new QueryQueueItem(query);
_receivedQueries.Enqueue(item);
return(item.ResultSource.Task);
}
private void OnReceivedQuery(object?sender, ReceiveQueryEventArgs e)
{
string content = e.Query.Query;
int i = FindColonCharIndex(content);
string command = (i == -1) ? content : content.Substring(0, i);
string args = (i == -1) ? "" : content.Substring(i + 1);
var ea = new QueryReceivedEventArgs(command, args);
App.Current.Dispatcher.BeginInvoke(new Action(() =>
{
ReceivedQuery?.Invoke(this, ea);
e.Query.Reply(string.IsNullOrWhiteSpace(ea.Result) ? "" : ea.Result);
}));
}
private void ReadMessage()
{
string message = "";
bool isReply = false;
int id = 0;
lock (_receiverLock)
{
if (_receiverAccessor == null)
{
return;
}
short messageType = _receiverAccessor.ReadInt16(2);
isReply = messageType > 0;
id = _receiverAccessor.ReadInt32(4);
int bodyLength = _receiverAccessor.ReadInt32(8);
_receiverAccessor.ReadArray(12, _readBuffer, 0, bodyLength);
message = Encoding.UTF8.GetString(_readBuffer, 0, bodyLength);
_receiverAccessor.Write(0, (byte)0);
}
//3パターンある
// - こちらが投げたQueryの返答が戻ってきた
// - Commandを受け取った
// - Queryを受け取った
if (isReply)
{
if (_sendedQueries.TryRemove(id, out var src))
{
//戻ってきた結果によってTaskが完了となる
src.SetResult(message);
}
}
else if (id == 0)
{
ReceiveCommand?.Invoke(this, new ReceiveCommandEventArgs(message));
}
else
{
var query = new ReceivedQuery(message, id, this);
ReceiveQuery?.Invoke(this, new ReceiveQueryEventArgs(query));
}
}
public QueryQueueItem(ReceivedQuery query)
{
Query = query;
}