/// <summary>
/// Отправляет сообщение на сервер.
/// </summary>
/// <param name="message">Сообщения для отправки.</param>
/// <returns></returns>
public void SendMessage(string message)
{
if (string.IsNullOrEmpty(message))
{
throw new ArgumentNullException(nameof(message));
}
try
{
var buffer = Encoding.Default.GetBytes(message);
_client.GetStream().Write(buffer, 0, buffer.Length);
MessageSent?.Invoke(this, EventArgs.Empty);
}
catch (SocketException ex)
{
NetworkStreamError?.Invoke(this, new SingleMessageEventArgs(ex.Message));
}
}
/// <summary>
/// Отправляет сообщение на сервер.
/// </summary>
/// <param name="message">Сообщения для отправки.</param>
/// <param name="token">Токен отмены.</param>
/// <returns></returns>
public async ValueTask SendMessageAsync(string message, CancellationToken token)
{
if (string.IsNullOrEmpty(message))
{
throw new ArgumentNullException(nameof(message));
}
try
{
var buffer = Encoding.Default.GetBytes(message);
await _client.GetStream().WriteAsync(buffer, 0, buffer.Length, token);
MessageSent?.Invoke(this, EventArgs.Empty);
}
catch (SocketException ex)
{
NetworkStreamError?.Invoke(this, new SingleMessageEventArgs(ex.Message));
}
}
/// <summary>
/// Принимает сообщения от сервера.
/// </summary>
/// <param name="token">Токен отмены.</param>
/// <returns></returns>
public async ValueTask ReceiveMessagesAsync(CancellationToken token)
{
var messageBuilder = new StringBuilder();
while (!token.IsCancellationRequested)
{
var stream = _client.GetStream();
var buffer = new byte[256];
messageBuilder.Clear();
try
{
do
{
var bytes = await stream.ReadAsync(buffer, 0, buffer.Length, token);
messageBuilder.Append(Encoding.Default.GetString(buffer, 0, bytes));
} while (stream.DataAvailable && !token.IsCancellationRequested);
}
catch (SocketException ex)
{
NetworkStreamError?.Invoke(this, new SingleMessageEventArgs(ex.Message));
break;
}
if (token.IsCancellationRequested)
{
break;
}
var message = messageBuilder.ToString();
MessageReceived?.Invoke(this, new SingleMessageEventArgs(message));
if (ServerShutdownMessage.Equals(message))
{
ServerShutdown?.Invoke(this, EventArgs.Empty);
}
}
}
