private void cleanBufferTo(final long newCleanPosition) {
final long cleanPosition = this.cleanPosition;
final int bytesForCleaning = (int) (newCleanPosition - cleanPosition);
final UnsafeBuffer dirtyTerm = termBuffers[indexByPosition(cleanPosition, positionBitsToShift)];
final int termOffset = (int) cleanPosition & termLengthMask;
final int length = Math.min(bytesForCleaning, dirtyTerm.capacity() - termOffset);
if (length > 0) {
dirtyTerm.setMemory(termOffset, length, (byte) 0);
this.cleanPosition = cleanPosition + length;
}
}
private static void roundTripMessages(
final FragmentHandler fragmentHandler,
final Publication pingPublication,
final Subscription pongSubscription,
final int numMessages) {
final IdleStrategy idleStrategy = new BusySpinIdleStrategy();
for (int i = 0; i < numMessages; i++) {
do {
ATOMIC_BUFFER.putLong(0, System.nanoTime());
} while (pingPublication.offer(ATOMIC_BUFFER, 0, MESSAGE_LENGTH) < 0L);
idleStrategy.reset();
while (pongSubscription.poll(fragmentHandler, FRAGMENT_COUNT_LIMIT) <= 0) {
idleStrategy.idle();
}
}
}
private boolean isHeartbeat(final UnsafeBuffer packet, final int length) {
return length == DataHeaderFlyweight.HEADER_LENGTH && packet.getInt(0) == 0;
}