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package kotlinx.coroutines.internal;
import androidx.concurrent.futures.AbstractResolvableFuture$SafeAtomicHelper$$ExternalSyntheticBackportWithForwarding0;
import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
import kotlin.KotlinNothingValueException;
import kotlin.Metadata;
import kotlin.jvm.functions.Function0;
import kotlin.jvm.internal.Intrinsics;
import kotlinx.coroutines.DebugKt;
import kotlinx.coroutines.internal.ConcurrentLinkedListNode;
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/* compiled from: ConcurrentLinkedList.kt */
public abstract class ConcurrentLinkedListNode<N extends ConcurrentLinkedListNode<N>> {
private static final /* synthetic */ AtomicReferenceFieldUpdater _next$FU;
private static final /* synthetic */ AtomicReferenceFieldUpdater _prev$FU;
private volatile /* synthetic */ Object _next = null;
private volatile /* synthetic */ Object _prev;
static {
Class<ConcurrentLinkedListNode> cls = ConcurrentLinkedListNode.class;
_next$FU = AtomicReferenceFieldUpdater.newUpdater(cls, Object.class, "_next");
_prev$FU = AtomicReferenceFieldUpdater.newUpdater(cls, Object.class, "_prev");
}
public abstract boolean getRemoved();
public ConcurrentLinkedListNode(N n) {
this._prev = n;
}
/* access modifiers changed from: private */
public final Object getNextOrClosed() {
return this._next;
}
public final N nextOrIfClosed(Function0 function0) {
N access$getNextOrClosed = getNextOrClosed();
if (access$getNextOrClosed != ConcurrentLinkedListKt.CLOSED) {
return (ConcurrentLinkedListNode) access$getNextOrClosed;
}
function0.invoke();
throw new KotlinNothingValueException();
}
public final boolean trySetNext(N n) {
return AbstractResolvableFuture$SafeAtomicHelper$$ExternalSyntheticBackportWithForwarding0.m(_next$FU, this, (Object) null, n);
}
public final boolean isTail() {
return getNext() == null;
}
public final N getPrev() {
return (ConcurrentLinkedListNode) this._prev;
}
public final void cleanPrev() {
_prev$FU.lazySet(this, (Object) null);
}
public final boolean markAsClosed() {
return AbstractResolvableFuture$SafeAtomicHelper$$ExternalSyntheticBackportWithForwarding0.m(_next$FU, this, (Object) null, ConcurrentLinkedListKt.CLOSED);
}
public final void remove() {
if (DebugKt.getASSERTIONS_ENABLED() && !getRemoved()) {
throw new AssertionError();
} else if (!DebugKt.getASSERTIONS_ENABLED() || (!isTail())) {
while (true) {
ConcurrentLinkedListNode leftmostAliveNode = getLeftmostAliveNode();
ConcurrentLinkedListNode rightmostAliveNode = getRightmostAliveNode();
rightmostAliveNode._prev = leftmostAliveNode;
if (leftmostAliveNode != null) {
leftmostAliveNode._next = rightmostAliveNode;
}
if (!rightmostAliveNode.getRemoved() && (leftmostAliveNode == null || !leftmostAliveNode.getRemoved())) {
return;
}
}
} else {
throw new AssertionError();
}
}
private final N getLeftmostAliveNode() {
N prev = getPrev();
while (prev != null && prev.getRemoved()) {
prev = (ConcurrentLinkedListNode) prev._prev;
}
return prev;
}
private final N getRightmostAliveNode() {
if (!DebugKt.getASSERTIONS_ENABLED() || (!isTail())) {
N next = getNext();
Intrinsics.checkNotNull(next);
while (next.getRemoved()) {
next = next.getNext();
Intrinsics.checkNotNull(next);
}
return next;
}
throw new AssertionError();
}
public final N getNext() {
N access$getNextOrClosed = getNextOrClosed();
if (access$getNextOrClosed == ConcurrentLinkedListKt.CLOSED) {
return null;
}
return (ConcurrentLinkedListNode) access$getNextOrClosed;
}
}
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