System.Net.WebSockets.ManagedWebSocket.SendKeepAliveFrameAsync C# (CSharp) Method

        private void SendKeepAliveFrameAsync()
        {
            bool acquiredLock = _sendFrameAsyncLock.Wait(0);
            if (acquiredLock)
            {
                // This exists purely to keep the connection alive; don't wait for the result, and ignore any failures.
                // The call will handle releasing the lock.
                SendFrameLockAcquiredNonCancelableAsync(MessageOpcode.Ping, true, new ArraySegment<byte>(Array.Empty<byte>()));
            }
            else
            {
                // If the lock is already held, something is already getting sent,
                // so there's no need to send a keep-alive ping.
            }
        }