Add SendTextAsBinary method

src/Websocket.Client/RequestMessage.cs

@@ -0,0 +1,36 @@
+using System;
+
+namespace Websocket.Client
+{
+    internal abstract class RequestMessage { }
+
+    internal class RequestTextMessage : RequestMessage
+    {
+        public string Text { get; }
+
+        public RequestTextMessage(string text)
+        {
+            Text = text;
+        }
+    }
+
+    internal class RequestBinaryMessage : RequestMessage
+    {
+        public byte[] Data { get; }
+
+        public RequestBinaryMessage(byte[] data)
+        {
+            Data = data;
+        }
+    }
+
+    internal class RequestBinarySegmentMessage : RequestMessage
+    {
+        public ArraySegment<byte> Data { get; }
+
+        public RequestBinarySegmentMessage(ArraySegment<byte> data)
+        {
+            Data = data;
+        }
+    }
+}

src/Websocket.Client/WebsocketClient.Sending.cs

@@ -10,7 +10,7 @@ namespace Websocket.Client
 {
     public partial class WebsocketClient
     {
-        private readonly Channel<string> _messagesTextToSendQueue = Channel.CreateUnbounded<string>(new UnboundedChannelOptions()
+        private readonly Channel<RequestMessage> _messagesTextToSendQueue = Channel.CreateUnbounded<RequestMessage>(new UnboundedChannelOptions()
         {
             SingleReader = true,
             SingleWriter = false
@@ -31,7 +31,7 @@ public void Send(string message)
         {
             Validations.Validations.ValidateInput(message, nameof(message));
 
-            _messagesTextToSendQueue.Writer.TryWrite(message);
+            _messagesTextToSendQueue.Writer.TryWrite(new RequestTextMessage(message));
         }
 
         /// <summary>
@@ -68,7 +68,7 @@ public ValueTask SendAsync(string message, CancellationToken cancellationToken =
         {
             Validations.Validations.ValidateInput(message, nameof(message));
 
-            return _messagesTextToSendQueue.Writer.WriteAsync(message, cancellationToken);
+            return _messagesTextToSendQueue.Writer.WriteAsync(new RequestTextMessage(message), cancellationToken);
         }
 
         /// <summary>
@@ -108,7 +108,7 @@ public Task SendInstant(string message)
         {
             Validations.Validations.ValidateInput(message, nameof(message));
 
-            return SendInternalSynchronized(message);
+            return SendInternalSynchronized(new RequestTextMessage(message));
         }
 
         /// <summary>
@@ -123,6 +123,60 @@ public Task SendInstant(byte[] message)
             return SendInternalSynchronized(new ArraySegment<byte>(message));
         }
 
+        /// <summary>
+        /// Send already converted text message to the websocket channel. 
+        /// Use this method to avoid double serialization of the text message.
+        /// It inserts the message to the queue and actual sending is done on an other thread
+        /// </summary>
+        /// <param name="message">Message to be sent</param>
+        public void SendTextAsBinary(byte[] message)
+        {
+            Validations.Validations.ValidateInput(message, nameof(message));
+
+            _messagesTextToSendQueue.Writer.TryWrite(new RequestBinaryMessage(message));
+        }
+
+        /// <summary>
+        /// Send already converted text message to the websocket channel. 
+        /// Use this method to avoid double serialization of the text message.
+        /// It inserts the message to the queue and actual sending is done on an other thread
+        /// </summary>
+        /// <param name="message">Message to be sent</param>
+        public void SendTextAsBinary(ArraySegment<byte> message)
+        {
+            Validations.Validations.ValidateInput(message, nameof(message));
+
+            _messagesTextToSendQueue.Writer.TryWrite(new RequestBinarySegmentMessage(message));
+        }
+
+        /// <summary>
+        /// Send already converted text message to the websocket channel. 
+        /// Use this method to avoid double serialization of the text message.
+        /// It inserts the message to the queue and actual sending is done on an other thread
+        /// </summary>
+        /// <param name="message">Message to be sent</param>
+        /// <param name="cancellationToken">The cancellationToken enables graceful cancellation of asynchronous operations</param>
+        public ValueTask SendTextAsBinaryAsync(byte[] message, CancellationToken cancellationToken = default)
+        {
+            Validations.Validations.ValidateInput(message, nameof(message));
+
+            return _messagesTextToSendQueue.Writer.WriteAsync(new RequestBinaryMessage(message), cancellationToken);
+        }
+
+        /// <summary>
+        /// Send already converted text message to the websocket channel. 
+        /// Use this method to avoid double serialization of the text message.
+        /// It inserts the message to the queue and actual sending is done on an other thread
+        /// </summary>
+        /// <param name="message">Message to be sent</param>
+        /// <param name="cancellationToken">The cancellationToken enables graceful cancellation of asynchronous operations</param>
+        public ValueTask SendTextAsBinaryAsync(ArraySegment<byte> message, CancellationToken cancellationToken = default)
+        {
+            Validations.Validations.ValidateInput(message, nameof(message));
+
+            return _messagesTextToSendQueue.Writer.WriteAsync(new RequestBinarySegmentMessage(message), cancellationToken);
+        }
+
         /// <summary>
         /// Stream/publish fake message (via 'MessageReceived' observable).
         /// Use for testing purposes to simulate a server message. 
@@ -228,15 +282,15 @@ private void StartBackgroundThreadForSendingBinary()
             _ = Task.Factory.StartNew(_ => SendBinaryFromQueue(), TaskCreationOptions.LongRunning, _cancellationTotal.Token);
         }
 
-        private async Task SendInternalSynchronized(string message)
+        private async Task SendInternalSynchronized(RequestMessage message)
         {
             using (await _locker.LockAsync())
             {
                 await SendInternal(message);
             }
         }
 
-        private async Task SendInternal(string message)
+        private async Task SendInternal(RequestMessage message)
         {
             if (!IsClientConnected())
             {
@@ -246,14 +300,43 @@ private async Task SendInternal(string message)
 
             Logger.Trace(L($"Sending:  {message}"));
 #if NETSTANDARD2_0
-            var buffer = GetEncoding().GetBytes(message);
-            var messageSegment = new ArraySegment<byte>(buffer);
+            ArraySegment<byte> payload;
+
+            switch (message)
+            {
+                case RequestTextMessage textMessage:
+                    payload = new ArraySegment<byte>(GetEncoding().GetBytes(textMessage.Text));
+                    break;
+                case RequestBinaryMessage binaryMessage:
+                    payload = new ArraySegment<byte>(binaryMessage.Data);
+                    break;
+                case RequestBinarySegmentMessage segmentMessage:
+                    payload = segmentMessage.Data;
+                    break;
+                default:
+                    throw new ArgumentException($"Unknown message type: {message.GetType()}");
+            }
 #else
-            ReadOnlyMemory<byte> messageSegment = MemoryMarshal.AsMemory<byte>(GetEncoding().GetBytes(message));
+            ReadOnlyMemory<byte> payload;
+
+            switch (message)
+            {
+                case RequestTextMessage textMessage:
+                    payload = MemoryMarshal.AsMemory<byte>(GetEncoding().GetBytes(textMessage.Text));
+                    break;
+                case RequestBinaryMessage binaryMessage:
+                    payload = MemoryMarshal.AsMemory<byte>(binaryMessage.Data);
+                    break;
+                case RequestBinarySegmentMessage segmentMessage:
+                    payload = segmentMessage.Data.AsMemory();
+                    break;
+                default:
+                    throw new ArgumentException($"Unknown message type: {message.GetType()}");
+            }
 #endif
 
             await _client
-                .SendAsync(messageSegment, WebSocketMessageType.Text, true, _cancellation.Token)
+                .SendAsync(payload, WebSocketMessageType.Text, true, _cancellation.Token)
                 .ConfigureAwait(false);
         }
 
@@ -265,18 +348,18 @@ private async Task SendInternalSynchronized(ArraySegment<byte> message)
             }
         }
 
-        private async Task SendInternal(ArraySegment<byte> message)
+        private async Task SendInternal(ArraySegment<byte> payload)
         {
             if (!IsClientConnected())
             {
-                Logger.Debug(L($"Client is not connected to server, cannot send binary, length: {message.Count}"));
+                Logger.Debug(L($"Client is not connected to server, cannot send binary, length: {payload.Count}"));
                 return;
             }
 
-            Logger.Trace(L($"Sending binary, length: {message.Count}"));
+            Logger.Trace(L($"Sending binary, length: {payload.Count}"));
 
             await _client
-                .SendAsync(message, WebSocketMessageType.Binary, true, _cancellation.Token)
+                .SendAsync(payload, WebSocketMessageType.Binary, true, _cancellation.Token)
                 .ConfigureAwait(false);
         }
     }