AspNetCore.Docs/aspnet/whitepapers/whats-new-in-aspnet-45-and-.../samples/sample10.cs

27 lines
910 B
C#

public async Task MyWebSocket(AspNetWebSocketContext context)
{
WebSocket socket = context.WebSocket;
while (true)
{
ArraySegment<byte> buffer = new ArraySegment<byte>(new byte[1024]);
// Asynchronously wait for a message to arrive from a client
WebSocketReceiveResult result =
await socket.ReceiveAsync(buffer, CancellationToken.None);
// If the socket is still open, echo the message back to the client
if (socket.State == WebSocketState.Open)
{
string userMessage = Encoding.UTF8.GetString(buffer.Array, 0,
result.Count);
userMessage = "You sent: " + userMessage + " at " +
DateTime.Now.ToLongTimeString();
buffer = new ArraySegment<byte>(Encoding.UTF8.GetBytes(userMessage));
// Asynchronously send a message to the client
await socket.SendAsync(buffer, WebSocketMessageType.Text,
true, CancellationToken.None);
}
else { break; }
}
}