io.netty.util.internal.shaded.org.jctools.queues.atomic.MpscUnboundedAtomicArrayQueue Maven / Gradle / Ivy
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.netty.util.internal.shaded.org.jctools.queues.atomic;
import io.netty.util.internal.shaded.org.jctools.util.PortableJvmInfo;
import static io.netty.util.internal.shaded.org.jctools.queues.atomic.LinkedAtomicArrayQueueUtil.length;
import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
import io.netty.util.internal.shaded.org.jctools.queues.MessagePassingQueue;
import io.netty.util.internal.shaded.org.jctools.queues.MessagePassingQueue.Supplier;
import io.netty.util.internal.shaded.org.jctools.queues.MessagePassingQueueUtil;
import io.netty.util.internal.shaded.org.jctools.queues.QueueProgressIndicators;
import io.netty.util.internal.shaded.org.jctools.queues.IndexedQueueSizeUtil;
import static io.netty.util.internal.shaded.org.jctools.queues.atomic.LinkedAtomicArrayQueueUtil.*;
import java.util.concurrent.atomic.AtomicReferenceArray;
import io.netty.util.internal.shaded.org.jctools.queues.MpmcArrayQueue;
/**
* NOTE: This class was automatically generated by io.netty.util.internal.shaded.org.jctools.queues.atomic.JavaParsingAtomicLinkedQueueGenerator
* which can found in the jctools-build module. The original source file is MpscUnboundedArrayQueue.java.
* An MPSC array queue which starts at initialCapacity and grows to maxCapacity in linked chunks
* of the initial size. The queue grows only when the current buffer is full and elements are not copied on
* resize, instead a link to the new buffer is stored in the old buffer for the consumer to follow.
*
* @param
*/
public class MpscUnboundedAtomicArrayQueue extends BaseMpscLinkedAtomicArrayQueue {
long p0, p1, p2, p3, p4, p5, p6, p7;
long p10, p11, p12, p13, p14, p15, p16, p17;
public MpscUnboundedAtomicArrayQueue(int chunkSize) {
super(chunkSize);
}
@Override
protected long availableInQueue(long pIndex, long cIndex) {
return Integer.MAX_VALUE;
}
@Override
public int capacity() {
return MessagePassingQueue.UNBOUNDED_CAPACITY;
}
@Override
public int drain(Consumer c) {
return drain(c, 4096);
}
@Override
public int fill(Supplier s) {
// result is a long because we want to have a safepoint check at regular intervals
long result = 0;
final int capacity = 4096;
do {
final int filled = fill(s, PortableJvmInfo.RECOMENDED_OFFER_BATCH);
if (filled == 0) {
return (int) result;
}
result += filled;
} while (result <= capacity);
return (int) result;
}
@Override
protected int getNextBufferSize(AtomicReferenceArray buffer) {
return length(buffer);
}
@Override
protected long getCurrentBufferCapacity(long mask) {
return mask;
}
}