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@ -27,9 +27,6 @@ package com.arialyy.aria.util; |
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import android.os.Handler; |
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import android.os.Looper; |
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import android.os.Message; |
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import androidx.annotation.NonNull; |
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import androidx.annotation.Nullable; |
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import androidx.annotation.VisibleForTesting; |
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import java.lang.ref.WeakReference; |
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import java.util.concurrent.locks.Lock; |
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import java.util.concurrent.locks.ReentrantLock; |
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@ -51,7 +48,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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// hard reference to Callback. We need to keep callback in memory
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private final ExecHandler mExec; |
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private Lock mLock = new ReentrantLock(); |
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@SuppressWarnings("ConstantConditions") @VisibleForTesting final ChainedRef mRunnables = |
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@SuppressWarnings("ConstantConditions") final ChainedRef mRunnables = |
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new ChainedRef(mLock, null); |
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/** |
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@ -76,7 +73,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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* |
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* @param callback The callback interface in which to handle messages, or null. |
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*/ |
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public WeakHandler(@Nullable Handler.Callback callback) { |
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public WeakHandler(Handler.Callback callback) { |
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mCallback = callback; // Hard referencing body
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mExec = new ExecHandler(new WeakReference<>(callback)); // Weak referencing inside ExecHandler
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} |
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@ -86,7 +83,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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* |
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* @param looper The looper, must not be null. |
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*/ |
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public WeakHandler(@NonNull Looper looper) { |
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public WeakHandler(Looper looper) { |
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mCallback = null; |
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mExec = new ExecHandler(looper); |
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} |
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@ -98,7 +95,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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* @param looper The looper, must not be null. |
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* @param callback The callback interface in which to handle messages, or null. |
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*/ |
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public WeakHandler(@NonNull Looper looper, @NonNull Handler.Callback callback) { |
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public WeakHandler(Looper looper, Handler.Callback callback) { |
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mCallback = callback; |
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mExec = new ExecHandler(looper, new WeakReference<>(callback)); |
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} |
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@ -113,7 +110,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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* message queue. Returns false on failure, usually because the |
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* looper processing the message queue is exiting. |
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*/ |
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public final boolean post(@NonNull Runnable r) { |
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public final boolean post(Runnable r) { |
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return mExec.post(wrapRunnable(r)); |
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} |
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@ -133,7 +130,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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* the looper is quit before the delivery time of the message |
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* occurs then the message will be dropped. |
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*/ |
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public final boolean postAtTime(@NonNull Runnable r, long uptimeMillis) { |
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public final boolean postAtTime(Runnable r, long uptimeMillis) { |
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return mExec.postAtTime(wrapRunnable(r), uptimeMillis); |
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} |
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@ -367,7 +364,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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return mExec.getLooper(); |
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} |
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private WeakRunnable wrapRunnable(@NonNull Runnable r) { |
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private WeakRunnable wrapRunnable(Runnable r) { |
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//noinspection ConstantConditions
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if (r == null) { |
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throw new NullPointerException("Runnable can't be null"); |
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@ -398,7 +395,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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mCallback = callback; |
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} |
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@Override public void handleMessage(@NonNull Message msg) { |
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@Override public void handleMessage(Message msg) { |
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if (mCallback == null) { |
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return; |
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} |
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@ -432,14 +429,14 @@ import java.util.concurrent.locks.ReentrantLock; |
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} |
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static class ChainedRef { |
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@Nullable ChainedRef next; |
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@Nullable ChainedRef prev; |
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@NonNull final Runnable runnable; |
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@NonNull final WeakRunnable wrapper; |
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ChainedRef next; |
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ChainedRef prev; |
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final Runnable runnable; |
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final WeakRunnable wrapper; |
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@NonNull Lock lock; |
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Lock lock; |
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public ChainedRef(@NonNull Lock lock, @NonNull Runnable r) { |
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public ChainedRef(Lock lock, Runnable r) { |
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this.runnable = r; |
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this.lock = lock; |
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this.wrapper = new WeakRunnable(new WeakReference<>(r), new WeakReference<>(this)); |
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@ -462,7 +459,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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return wrapper; |
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} |
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public void insertAfter(@NonNull ChainedRef candidate) { |
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public void insertAfter(ChainedRef candidate) { |
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lock.lock(); |
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try { |
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if (this.next != null) { |
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@ -477,7 +474,7 @@ import java.util.concurrent.locks.ReentrantLock; |
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} |
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} |
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@Nullable public WeakRunnable remove(Runnable obj) { |
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public WeakRunnable remove(Runnable obj) { |
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lock.lock(); |
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try { |
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ChainedRef curr = this.next; // Skipping head
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laoyuyu
5 years ago