Java Code Examples for io.netty.handler.codec.http2.Http2LocalFlowController#initialWindowSize()

The following examples show how to use io.netty.handler.codec.http2.Http2LocalFlowController#initialWindowSize() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: AbstractNettyHandler.java    From grpc-nebula-java with Apache License 2.0 6 votes vote down vote up 
public void updateWindow() throws Http2Exception {
  if (!autoTuneFlowControlOn) {
    return;
  }
  pingReturn++;
  long elapsedTime = (System.nanoTime() - lastPingTime);
  if (elapsedTime == 0) {
    elapsedTime = 1;
  }
  long bandwidth = (getDataSincePing() * TimeUnit.SECONDS.toNanos(1)) / elapsedTime;
  Http2LocalFlowController fc = decoder().flowController();
  // Calculate new window size by doubling the observed BDP, but cap at max window
  int targetWindow = Math.min(getDataSincePing() * 2, MAX_WINDOW_SIZE);
  setPinging(false);
  int currentWindow = fc.initialWindowSize(connection().connectionStream());
  if (targetWindow > currentWindow && bandwidth > lastBandwidth) {
    lastBandwidth = bandwidth;
    int increase = targetWindow - currentWindow;
    fc.incrementWindowSize(connection().connectionStream(), increase);
    fc.initialWindowSize(targetWindow);
    Http2Settings settings = new Http2Settings();
    settings.initialWindowSize(targetWindow);
    frameWriter().writeSettings(ctx(), settings, ctx().newPromise());
  }

}
Example 2
Source File: AbstractNettyHandler.java    From grpc-java with Apache License 2.0 6 votes vote down vote up 
public void updateWindow() throws Http2Exception {
  if (!autoTuneFlowControlOn) {
    return;
  }
  pingReturn++;
  long elapsedTime = (System.nanoTime() - lastPingTime);
  if (elapsedTime == 0) {
    elapsedTime = 1;
  }
  long bandwidth = (getDataSincePing() * TimeUnit.SECONDS.toNanos(1)) / elapsedTime;
  Http2LocalFlowController fc = decoder().flowController();
  // Calculate new window size by doubling the observed BDP, but cap at max window
  int targetWindow = Math.min(getDataSincePing() * 2, MAX_WINDOW_SIZE);
  setPinging(false);
  int currentWindow = fc.initialWindowSize(connection().connectionStream());
  if (targetWindow > currentWindow && bandwidth > lastBandwidth) {
    lastBandwidth = bandwidth;
    int increase = targetWindow - currentWindow;
    fc.incrementWindowSize(connection().connectionStream(), increase);
    fc.initialWindowSize(targetWindow);
    Http2Settings settings = new Http2Settings();
    settings.initialWindowSize(targetWindow);
    frameWriter().writeSettings(ctx(), settings, ctx().newPromise());
  }
}
Example 3
Source File: NettyServerHandlerTest.java    From grpc-nebula-java with Apache License 2.0 5 votes vote down vote up 
@Test
public void connectionWindowShouldBeOverridden() throws Exception {
  flowControlWindow = 1048576; // 1MiB
  manualSetUp();

  Http2Stream connectionStream = connection().connectionStream();
  Http2LocalFlowController localFlowController = connection().local().flowController();
  int actualInitialWindowSize = localFlowController.initialWindowSize(connectionStream);
  int actualWindowSize = localFlowController.windowSize(connectionStream);
  assertEquals(flowControlWindow, actualWindowSize);
  assertEquals(flowControlWindow, actualInitialWindowSize);
}
Example 4
Source File: NettyClientHandlerTest.java    From grpc-nebula-java with Apache License 2.0 5 votes vote down vote up 
@Test
public void connectionWindowShouldBeOverridden() throws Exception {
  flowControlWindow = 1048576; // 1MiB
  setUp();

  Http2Stream connectionStream = connection().connectionStream();
  Http2LocalFlowController localFlowController = connection().local().flowController();
  int actualInitialWindowSize = localFlowController.initialWindowSize(connectionStream);
  int actualWindowSize = localFlowController.windowSize(connectionStream);
  assertEquals(flowControlWindow, actualWindowSize);
  assertEquals(flowControlWindow, actualInitialWindowSize);
  assertEquals(1048576, actualWindowSize);
}
Example 5
Source File: NettyServerHandlerTest.java    From grpc-java with Apache License 2.0 5 votes vote down vote up 
@Test
public void connectionWindowShouldBeOverridden() throws Exception {
  flowControlWindow = 1048576; // 1MiB
  manualSetUp();

  Http2Stream connectionStream = connection().connectionStream();
  Http2LocalFlowController localFlowController = connection().local().flowController();
  int actualInitialWindowSize = localFlowController.initialWindowSize(connectionStream);
  int actualWindowSize = localFlowController.windowSize(connectionStream);
  assertEquals(flowControlWindow, actualWindowSize);
  assertEquals(flowControlWindow, actualInitialWindowSize);
}
Example 6
Source File: NettyClientHandlerTest.java    From grpc-java with Apache License 2.0 5 votes vote down vote up 
@Test
public void connectionWindowShouldBeOverridden() throws Exception {
  flowControlWindow = 1048576; // 1MiB
  setUp();

  Http2Stream connectionStream = connection().connectionStream();
  Http2LocalFlowController localFlowController = connection().local().flowController();
  int actualInitialWindowSize = localFlowController.initialWindowSize(connectionStream);
  int actualWindowSize = localFlowController.windowSize(connectionStream);
  assertEquals(flowControlWindow, actualWindowSize);
  assertEquals(flowControlWindow, actualInitialWindowSize);
  assertEquals(1048576, actualWindowSize);
}