System.Net.WebSockets.WebSocketProtocolComponent.WebSocketGetAction C# (CSharp) Method

        internal static void WebSocketGetAction(WebSocketBase webSocket,
            ActionQueue actionQueue,
            Interop.WebSocket.Buffer[] dataBuffers,
            ref uint dataBufferCount,
            out Action action,
            out BufferType bufferType,
            out IntPtr actionContext)
        {
            Debug.Assert(webSocket != null,
                "'webSocket' MUST NOT be NULL or INVALID.");
            Debug.Assert(webSocket.SessionHandle != null && !webSocket.SessionHandle.IsInvalid,
                "'webSocket.SessionHandle' MUST NOT be NULL or INVALID.");
            Debug.Assert(dataBufferCount >= 0, "'dataBufferCount' MUST NOT be negative.");
            Debug.Assert((dataBuffers == null && dataBufferCount == 0) ||
                (dataBuffers != null && dataBufferCount == dataBuffers.Length),
                "'dataBufferCount' MUST MATCH 'dataBuffers.Length'.");

            action = Action.NoAction;
            bufferType = BufferType.None;
            actionContext = IntPtr.Zero;

            IntPtr dummy;
            ThrowIfSessionHandleClosed(webSocket);

            int errorCode;
            try
            {
                errorCode = Interop.WebSocket.WebSocketGetAction(webSocket.SessionHandle,
                    actionQueue,
                    dataBuffers,
                    ref dataBufferCount,
                    out action,
                    out bufferType,
                    out dummy,
                    out actionContext);
            }
            catch (ObjectDisposedException innerException)
            {
                throw ConvertObjectDisposedException(webSocket, innerException);
            }
            ThrowOnError(errorCode);

            webSocket.ValidateNativeBuffers(action, bufferType, dataBuffers, dataBufferCount);

            Debug.Assert(dataBufferCount >= 0);
            Debug.Assert((dataBufferCount == 0 && dataBuffers == null) ||
                (dataBufferCount <= dataBuffers.Length));
        }