89 lines
2.6 KiB
Java
89 lines
2.6 KiB
Java
package android.support.v4.util;
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/* loaded from: classes.dex */
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public final class Pools {
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/* loaded from: classes.dex */
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public interface Pool<T> {
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T acquire();
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boolean release(T t);
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}
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private Pools() {
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}
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/* loaded from: classes.dex */
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public static class SimplePool<T> implements Pool<T> {
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private final Object[] mPool;
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private int mPoolSize;
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public SimplePool(int maxPoolSize) {
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if (maxPoolSize <= 0) {
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throw new IllegalArgumentException("The max pool size must be > 0");
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}
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this.mPool = new Object[maxPoolSize];
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}
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@Override // android.support.v4.util.Pools.Pool
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public T acquire() {
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if (this.mPoolSize > 0) {
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int lastPooledIndex = this.mPoolSize - 1;
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T instance = (T) this.mPool[lastPooledIndex];
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this.mPool[lastPooledIndex] = null;
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this.mPoolSize--;
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return instance;
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}
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return null;
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}
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@Override // android.support.v4.util.Pools.Pool
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public boolean release(T instance) {
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if (isInPool(instance)) {
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throw new IllegalStateException("Already in the pool!");
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}
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if (this.mPoolSize >= this.mPool.length) {
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return false;
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}
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this.mPool[this.mPoolSize] = instance;
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this.mPoolSize++;
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return true;
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}
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private boolean isInPool(T instance) {
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for (int i = 0; i < this.mPoolSize; i++) {
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if (this.mPool[i] == instance) {
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return true;
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}
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}
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return false;
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}
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}
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/* loaded from: classes.dex */
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public static class SynchronizedPool<T> extends SimplePool<T> {
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private final Object mLock;
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public SynchronizedPool(int maxPoolSize) {
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super(maxPoolSize);
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this.mLock = new Object();
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}
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@Override // android.support.v4.util.Pools.SimplePool, android.support.v4.util.Pools.Pool
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public T acquire() {
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T t;
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synchronized (this.mLock) {
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t = (T) super.acquire();
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}
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return t;
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}
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@Override // android.support.v4.util.Pools.SimplePool, android.support.v4.util.Pools.Pool
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public boolean release(T element) {
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boolean release;
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synchronized (this.mLock) {
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release = super.release(element);
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}
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return release;
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}
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}
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}
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