Examples with DataTry com.webpieces.http2engine.impl.DataTry used on opensource projects

Example 1 with DataTry

use of com.webpieces.http2engine.impl.DataTry in project webpieces by deanhiller.

the class Level6RemoteFlowControl method sendDataToSocket.

public CompletableFuture<Void> sendDataToSocket(Stream stream, DataFrame dataFrame) {
    log.info("sending payload to socket=" + dataFrame);
    CompletableFuture<Void> future = new CompletableFuture<>();
    DataTry data = new DataTry(stream, dataFrame, future, false);
    trySendPayload(data);
    return future;
}

Example 2 with DataTry

use of com.webpieces.http2engine.impl.DataTry in project webpieces by deanhiller.

the class Level6RemoteFlowControl method updateConnectionWindowSize.

public CompletableFuture<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) {
        // we should delete this synchronized as we are virtually single threaded now!!!
        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 CompletableFuture.completedFuture(null);
}

Example 3 with DataTry

use of com.webpieces.http2engine.impl.DataTry in project webpieces by deanhiller.

the class Level6RemoteFlowControl method updateStreamWindowSize.

public CompletableFuture<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 CompletableFuture.completedFuture(null);
}

Example 4 with DataTry

use of com.webpieces.http2engine.impl.DataTry in project webpieces by deanhiller.

the class Level6RemoteFlowControl method trySendPayload.

private void trySendPayload(DataTry data) {
    long length = data.getDataFrame().getTransmitFrameLength();
    Stream stream = data.getStream();
    boolean send;
    long min = Math.min(remoteWindowSize, stream.getRemoteWindowSize());
    long lengthToSend = Math.min(length, min);
    if (length != lengthToSend) {
        //must split DataFrame into two since WindowUpdateSize is not large enough
        List<DataTry> tuple = splitDataFrame(data, lengthToSend);
        //swap the right size to send
        data = tuple.get(0);
        dataQueue.add(0, tuple.get(1));
    }
    if (lengthToSend > 0) {
        stream.incrementRemoteWindow(-lengthToSend);
        remoteWindowSize -= lengthToSend;
        send = true;
    } else if (data.isWasQueuedBefore()) {
        //insert BACK at beginning of queue
        dataQueue.add(0, data);
        send = false;
    } else {
        //insert at end of queue
        dataQueue.add(data);
        send = false;
    }
    log.info("flow control.  send=" + send + " window=" + remoteWindowSize + " streamWindow=" + stream.getRemoteWindowSize());
    if (send) {
        DataTry finalTry = data;
        layer6NotifyListener.sendFrameToSocket(data.getDataFrame()).handle((v, t) -> processComplete(v, t, finalTry.getFuture()));
    }
}

Example 5 with DataTry

use of com.webpieces.http2engine.impl.DataTry in project webpieces by deanhiller.

the class Level6RemoteFlowControl method splitDataFrame.

private List<DataTry> splitDataFrame(DataTry dataTry, long lengthToSend) {
    if (lengthToSend > Integer.MAX_VALUE)
        throw new IllegalStateException("bug, length to send should not be this large(per spec)=" + lengthToSend);
    int len = (int) lengthToSend;
    DataFrame dataFrame = dataTry.getDataFrame();
    DataWrapper data = dataFrame.getData();
    if (dataFrame.getPadding().getReadableSize() > 0)
        throw new UnsupportedOperationException("Splitting padding under these conditions would be" + " quite difficult so we skipped it.  perhaps stop using padding or" + " modify this code but some padding would have to go in one" + " DataFrame and the rest in the next as the window size is not large enough");
    List<? extends DataWrapper> split = dataGen.split(data, len);
    DataFrame dF1 = new DataFrame();
    dF1.setData(split.get(0));
    DataFrame dF2 = new DataFrame();
    dF2.setData(split.get(1));
    List<DataTry> tuple = new ArrayList<>();
    tuple.add(new DataTry(dataTry.getStream(), dF1, null, dataTry.isWasQueuedBefore()));
    tuple.add(new DataTry(dataTry.getStream(), dF2, dataTry.getFuture(), dataTry.isWasQueuedBefore()));
    return tuple;
}