private async Task ReadClientHandler(OwnTcpServerConnection connection, AsyncQueue <OwnTcpSendMessage> processQueue)
{
try
{
while (connection.Client.Connected)
{
OwnTcpMessage message = await connection.ReadMessage();
if (message == null || !connection.Client.Connected)
{
break;
}
switch (message.Topic)
{
case PingCmd:
await SendAnswer(connection, message.ID, 200);
break;
case SyncCmd:
ByteQueue data = new ByteQueue();
data.Enqueue(Service);
await SendMessageToClient(connection, SyncCmd, message.ID, data);
break;
case CloseCmd:
await CloseConnection(connection, false);
return;
default:
OwnTcpSendMessage processItem = new OwnTcpSendMessage(message);
await processQueue.Enqueue(processItem);
if (await processItem.Task)
{
Task responseTask = message.IsFireAndForget
? Task.CompletedTask
: SendAnswer(connection, message.ID, 200);
await SendMessageToAllOtherClients(connection, message.Topic, message.Payload);
await responseTask;
}
else
{
await CloseConnection(connection);
}
break;
}
}
}
catch (Exception e)
{
await CloseConnection(connection);
}
}
protected bool HandlerMessage(OwnTcpMessage message)
{
string topic;
Guid id;
return(ContainsPlaylist(message.Topic, out topic, out id) ?
HandlePlaylistMessage(id, topic, message.Payload) :
HandleServiceMessage(topic, message.Payload));
}
protected override async Task SendAsync(string topic, byte[] payload, bool fireAndForget)
{
if (isSyncing || !IsOpen || IsTopicLocked(topic, payload))
{
return;
}
await connection.SendQueue.Enqueue(OwnTcpMessage.FromData(topic, payload, fireAndForget));
}
protected static IEnumerable <byte> GetBytes(OwnTcpMessage message)
{
byte[] idBytes = BitConverter.GetBytes(message.ID);
byte[] fireAndForgetBytes = BitConverter.GetBytes(message.IsFireAndForget);
byte[] topicBytes = Encoding.UTF8.GetBytes(message.Topic);
byte[] topicLengthBytes = BitConverter.GetBytes(topicBytes.Length);
byte[] payloadLengthBytes = BitConverter.GetBytes(message.Payload?.Length ?? -1);
return(idBytes.Concat(fireAndForgetBytes)
.Concat(topicLengthBytes)
.Concat(topicBytes)
.Concat(payloadLengthBytes)
.Concat(message.Payload ?? new byte[0]));
}
public override async Task SendCommand(string cmd)
{
if (!IsOpen)
{
return;
}
byte[] payload = Encoding.UTF8.GetBytes(cmd);
OwnTcpMessage message = new OwnTcpMessage()
{
IsFireAndForget = true,
Topic = cmdString,
Payload = payload,
};
await connection.SendQueue.Enqueue(message);
}
private static async Task SendMessageToClient(OwnTcpServerConnection connection,
string topic, uint id, byte[] payload = null)
{
if (!connection.Client.Connected)
{
return;
}
OwnTcpMessage message = new OwnTcpMessage()
{
IsFireAndForget = true,
ID = id,
Topic = topic,
Payload = payload,
};
await connection.SendQueue.Enqueue(message).ConfigureAwait(false);
}
public Task Enqueue(OwnTcpMessage message)
{
lock (queue)
{
OwnTcpSendMessage sendMessage;
if (dict.TryGetValue(message.Topic, out sendMessage))
{
sendMessage.Message = message;
}
else
{
sendMessage = new OwnTcpSendMessage(message);
queue.Enqueue(message.Topic);
dict.Add(message.Topic, sendMessage);
Monitor.Pulse(queue);
}
return(sendMessage.Task);
}
}
public async Task SendCommand(string cmd, bool fireAndForget, Task cancelTask = null)
{
if (!Client.Connected)
{
return;
}
Task cmdTask = SendQueue.Enqueue(OwnTcpMessage.FromCommand(cmd, fireAndForget));
if (cancelTask != null)
{
await Task.WhenAny(cmdTask, cancelTask).ConfigureAwait(false);
if (!cmdTask.IsCompleted)
{
throw new TimeoutException($"Command ran in timout: {cmd}");
}
}
else
{
await cmdTask.ConfigureAwait(false);
}
}
public OwnTcpSendMessage(OwnTcpMessage message)
{
Message = message;
}
private async Task ReceiveHandler(OwnTcpClientConnection connection)
{
try
{
while (connection.Client?.Connected == true)
{
OwnTcpMessage message = await connection.ReadMessage();
if (message == null || connection.Client?.Connected != true)
{
break;
}
switch (message.Topic)
{
case AnwserCmd:
int code = BitConverter.ToInt32(message.Payload, 0);
if (code == 200)
{
connection.Waits[message.ID].SetResult(true);
connection.Waits.Remove(message.ID);
}
else
{
await connection.CloseAsync(new Exception("Negative Answer"), false);
}
break;
case CloseCmd:
Exception e = new Exception("Server sent close");
await connection.CloseAsync(e, false);
return;
case SyncCmd:
ByteQueue data = message.Payload;
void syncAction() => data.DequeueService(connection.Service, Service.CreateSourcePlaylist, Service.CreatePlaylist);
if (helper == null)
{
syncAction();
}
else
{
await helper.InvokeDispatcher(syncAction);
}
connection.Waits[message.ID].SetResult(true);
connection.Waits.Remove(message.ID);
break;
default:
if (connection.IsSynced)
{
await connection.ProcessQueue.Enqueue(message);
}
break;
}
}
}
catch (Exception e)
{
await connection.CloseAsync(new Exception("ReceiveHandler error", e), false);
}
}
