Examples with WindowUpdateFrame com.webpieces.http2.api.dto.lowlevel.WindowUpdateFrame used on opensource projects

Example 1 with WindowUpdateFrame

use of com.webpieces.http2.api.dto.lowlevel.WindowUpdateFrame in project webpieces by deanhiller.

the class WindowUpdateMarshaller method unmarshal.

@Override
public AbstractHttp2Frame unmarshal(Http2MementoImpl state, DataWrapper payload) {
    FrameHeaderData frameHeaderData = state.getFrameHeaderData();
    int streamId = frameHeaderData.getStreamId();
    if (state.getFrameHeaderData().getPayloadLength() != 4)
        throw new ConnectionException(CancelReasonCode.FRAME_SIZE_INCORRECT, streamId, "window update size not 4 and instead is=" + state.getFrameHeaderData().getPayloadLength());
    WindowUpdateFrame frame = new WindowUpdateFrame();
    super.unmarshalFrame(state, frame);
    ByteBuffer payloadByteBuffer = bufferPool.createWithDataWrapper(payload);
    frame.setWindowSizeIncrement(payloadByteBuffer.getInt());
    bufferPool.releaseBuffer(payloadByteBuffer);
    if (frame.getWindowSizeIncrement() == 0)
        throw new ConnectionException(CancelReasonCode.WINDOW_SIZE_INVALID, streamId, "Window size increment cannot be 0 per http/2 spec and was");
    return frame;
}

Example 2 with WindowUpdateFrame

use of com.webpieces.http2.api.dto.lowlevel.WindowUpdateFrame in project webpieces by deanhiller.

the class WindowUpdateMarshaller method marshal.

@Override
public DataWrapper marshal(Http2Frame frame) {
    WindowUpdateFrame castFrame = (WindowUpdateFrame) frame;
    ByteBuffer payload = bufferPool.nextBuffer(4).putInt(castFrame.getWindowSizeIncrement());
    payload.flip();
    DataWrapper dataPayload = DATA_GEN.wrapByteBuffer(payload);
    return super.marshalFrame(frame, (byte) 0, dataPayload);
}

Example 3 with WindowUpdateFrame

use of com.webpieces.http2.api.dto.lowlevel.WindowUpdateFrame in project webpieces by deanhiller.

the class Level6RemoteFlowControl method updateStreamWindowSize.

public XFuture<Void> updateStreamWindowSize(Stream stream, WindowUpdateFrame msg) {
    if (msg.getWindowSizeIncrement() == 0) {
        throw new ConnectionException(CancelReasonCode.WINDOW_SIZE_INVALID, logId, msg.getStreamId(), "Received windowUpdate size increment=0");
    }
    DataTry dataTry = null;
    DataTry temp = dataQueue.peek();
    synchronized (remoteLock) {
        long remoteWindowSize = stream.incrementRemoteWindow(msg.getWindowSizeIncrement());
        if (temp != null && remoteWindowSize > temp.getDataFrame().getTransmitFrameLength())
            dataTry = dataQueue.poll();
        log.info("updated stream " + stream.getStreamId() + " window to=" + stream.getRemoteWindowSize() + " increment=" + msg.getWindowSizeIncrement() + " dataTry to submit=" + dataTry);
    }
    if (dataTry != null) {
        dataTry.setWasQueuedBefore(true);
        trySendPayload(dataTry);
    }
    // someday, remove synchronized above and then complete future when it is complete instead maybe
    return XFuture.completedFuture(null);
}

Example 4 with WindowUpdateFrame

use of com.webpieces.http2.api.dto.lowlevel.WindowUpdateFrame in project webpieces by deanhiller.

the class Level6RemoteFlowControl method updateConnectionWindowSize.

public XFuture<Void> updateConnectionWindowSize(WindowUpdateFrame msg) {
    int increment = msg.getWindowSizeIncrement();
    if (increment == 0) {
        throw new ConnectionException(CancelReasonCode.WINDOW_SIZE_INVALID, logId, msg.getStreamId(), "Received windowUpdate size increment=0");
    }
    DataTry dataTry = null;
    DataTry temp = dataQueue.peek();
    synchronized (remoteLock) {
        // TODO: Use AsyncLock instead so we do not block threads!!!
        remoteWindowSize += increment;
        if (remoteWindowSize > Integer.MAX_VALUE)
            throw new ConnectionException(CancelReasonCode.FLOW_CONTROL_ERROR, logId, 0, "(remote end bad)global remoteWindowSize too large=" + remoteWindowSize + " from windows increment=" + increment);
        if (temp != null && remoteWindowSize > temp.getDataFrame().getTransmitFrameLength())
            dataTry = dataQueue.poll();
        log.info("updated window to=" + remoteWindowSize + " increment=" + msg.getWindowSizeIncrement() + " dataTry to submit=" + dataTry);
    }
    if (dataTry != null) {
        dataTry.setWasQueuedBefore(true);
        trySendPayload(dataTry);
    }
    return XFuture.completedFuture(null);
}

Example 5 with WindowUpdateFrame

use of com.webpieces.http2.api.dto.lowlevel.WindowUpdateFrame in project webpieces by deanhiller.

the class Level6LocalFlowControl method updateFlowControl.

private Void updateFlowControl(long frameLength, Stream stream) {
    if (frameLength == 0)
        // nothing to do if it is a 0 length frame.
        return null;
    // TODO: we could optimize this to send very large window updates and send less window updates instead of
    // what we do currently sending many increase window by 13 byte updates and such.
    connectionLocalWindowSize += frameLength;
    stream.incrementLocalWindow(frameLength);
    totalRecovered += frameLength;
    int len = (int) frameLength;
    WindowUpdateFrame w1 = new WindowUpdateFrame();
    w1.setStreamId(0);
    w1.setWindowSizeIncrement(len);
    marshalLayer.sendFrameToSocket(w1);
    if (!stream.isClosed()) {
        // IF the stream is not closed, update flow control
        WindowUpdateFrame w2 = new WindowUpdateFrame();
        w2.setStreamId(stream.getStreamId());
        w2.setWindowSizeIncrement(len);
        log.info("sending BOTH WUF increments. framelen=" + frameLength + " recovered=" + totalRecovered);
        marshalLayer.sendFrameToSocket(w2);
    } else {
        log.info("sending WUF increments. framelen=" + frameLength + " recovered=" + totalRecovered);
    }
    return null;
}