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allow async ping #539

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allow async ping #539

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22 changes: 22 additions & 0 deletions websocket-sharp/WebSocket.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1578,6 +1578,16 @@ private bool ping (byte[] data)
}
}

private void pingAsync (byte[] data, Action<bool> completed)
{
if (_readyState != WebSocketState.Open) {
var msg = "The current state of the connection is not Open.";
throw new InvalidOperationException (msg);
}

sendAsync (Opcode.Ping, new MemoryStream (data), completed);
}

private bool processCloseFrame (WebSocketFrame frame)
{
var payload = frame.PayloadData;
Expand Down Expand Up @@ -3304,6 +3314,18 @@ public bool Ping ()
return ping (EmptyBytes);
}

/// <summary>
/// Sends a ping using the WebSocket connection.
/// </summary>
/// <returns>
/// <c>true</c> if the send has done with no error and a pong has been
/// received within a time; otherwise, <c>false</c>.
/// </returns>
public void PingAsync (Action<bool> completed)
{
pingAsync (EmptyBytes, completed);
}

/// <summary>
/// Sends a ping with <paramref name="message"/> using the WebSocket
/// connection.
Expand Down