/** * Called from the {@link Receiver} thread to check for initiating an RTT measurement. * * @param now in nanoseconds * @return number of work items processed. */ int initiateAnyRttMeasurements(final long now) { int workCount = 0; if (congestionControl.shouldMeasureRtt(now)) { channelEndpoint.sendRttMeasurement(controlAddress, sessionId, streamId, now, 0, true); workCount = 1; } return workCount; }