Move LongMap to util. Update use cases
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* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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package jdk.jfr.consumer;
import java.io.IOException;
import java.security.AccessControlContext;
import java.time.Duration;
import java.time.Instant;
import java.util.Objects;
import java.util.function.Consumer;
import jdk.jfr.internal.consumer.EventConsumer;
final class EventDirectoryStream implements EventStream {
private static class EventSetConsumer extends EventConsumer {
private EventSetLocation location;
private EventSet eventSet;
private int eventSetIndex;
private int eventArrayIndex;
private RecordedEvent[] currentEventArray = new RecordedEvent[0];
public EventSetConsumer(AccessControlContext acc) throws IOException {
super(acc);
}
public void process() throws Exception, IOException {
this.location = EventSetLocation.current();
this.eventSet = location.acquire(startNanos, null); // use timestamp
// from
if (eventSet == null) {
return;
}
while (!isClosed()) {
processSegment();
runFlushActions();
do {
if (isClosed()) {
return;
}
currentEventArray = eventSet.readEvents(eventSetIndex);
if (currentEventArray == EventSet.END_OF_SET) {
eventSet = eventSet.next(eventFilter);
if (eventSet == null || isClosed()) {
return;
}
eventSetIndex = 0;
continue;
}
if (currentEventArray == null) {
return; // no more events
}
eventSetIndex++;
} while (currentEventArray.length == 0);
eventArrayIndex = 0;
}
}
private void processSegment() {
while (eventArrayIndex < currentEventArray.length) {
RecordedEvent e = currentEventArray[eventArrayIndex++];
if (e == null) {
return;
}
dispatch(e);
}
}
public void close() {
setClosed(true);
// TODO: Data races here, must fix
synchronized (this) {
if (eventSet != null) {
eventSet.release(null);
}
if (location != null) {
location.release();
}
}
runCloseActions();
}
}
private final EventSetConsumer eventConsumer;
public EventDirectoryStream(AccessControlContext acc) throws IOException {
eventConsumer = new EventSetConsumer(acc);
}
public void close() {
eventConsumer.close();
}
public void onFlush(Runnable action) {
Objects.requireNonNull(action);
eventConsumer.onFlush(action);
}
void start(long startNanos) {
eventConsumer.start(startNanos);
}
@Override
public void start() {
start(Instant.now().toEpochMilli() * 1000 * 1000L);
}
@Override
public void startAsync() {
startAsync(Instant.now().toEpochMilli() * 1000 * 1000L);
}
void startAsync(long startNanos) {
eventConsumer.startAsync(startNanos);
}
@Override
public void onEvent(Consumer<RecordedEvent> action) {
Objects.requireNonNull(action);
eventConsumer.onEvent(action);
}
@Override
public void onEvent(String eventName, Consumer<RecordedEvent> action) {
Objects.requireNonNull(eventName);
Objects.requireNonNull(action);
eventConsumer.onEvent(eventName, action);
}
@Override
public void onClose(Runnable action) {
Objects.requireNonNull(action);
eventConsumer.addCloseAction(action);
}
@Override
public boolean remove(Object action) {
Objects.requireNonNull(action);
return eventConsumer.remove(action);
}
@Override
public void awaitTermination(Duration timeout) {
Objects.requireNonNull(timeout);
eventConsumer.awaitTermination(timeout);
}
@Override
public void awaitTermination() {
eventConsumer.awaitTermination(Duration.ofMillis(0));
}
}