private boolean sendMessages(
RingBuffer<byte[]> ringBuffer, long messagesPerSecond, int runtimeSeconds)
throws InterruptedException {
LOGGER.info("Rate: " + messagesPerSecond + ", for " + runtimeSeconds + "s");
long runtimeNanos = TimeUnit.SECONDS.toNanos(runtimeSeconds);
long t0 = System.nanoTime();
long delta = 0;
long sent = 0;
try {
do {
delta = System.nanoTime() - t0;
long shouldHaveSent = (messagesPerSecond * delta) / 1000000000;
for (; sent < shouldHaveSent; sent++) {
if (!send(ringBuffer)) {
return false;
}
}
LockSupport.parkNanos(1);
} while (delta <= runtimeNanos);
Thread.sleep(1000);
return ringBuffer.hasAvailableCapacity(ringBuffer.getBufferSize());
} finally {
while (!ringBuffer.hasAvailableCapacity(ringBuffer.getBufferSize())) {
Thread.sleep(1000);
}
}
}
private void prefillArgumentHolderObjects(
final RingBuffer<ProxyMethodInvocation> ringBuffer,
final ArgumentHolderGenerator argumentHolderGenerator) {
final int bufferSize = ringBuffer.getBufferSize();
for (int i = 0; i < bufferSize; i++) {
ringBuffer
.get(i)
.setArgumentHolder(
(Resetable) instantiate(argumentHolderGenerator.getGeneratedClass(), new Class[] {}));
}
}
public long capacity() {
return _buffer.getBufferSize();
}
/** Returns {@code true} if the specified disruptor still has unprocessed events. */
private static boolean hasBacklog(final Disruptor<?> theDisruptor) {
final RingBuffer<?> ringBuffer = theDisruptor.getRingBuffer();
return !ringBuffer.hasAvailableCapacity(ringBuffer.getBufferSize());
}