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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 package org.chromium.base; | 5 package org.chromium.base; |
6 | 6 |
7 import android.os.Handler; | 7 import android.os.Handler; |
8 import android.os.Looper; | 8 import android.os.Looper; |
9 import android.os.Process; | 9 import android.os.Process; |
10 | 10 |
11 import org.chromium.base.annotations.CalledByNative; | 11 import org.chromium.base.annotations.CalledByNative; |
12 | 12 |
13 import java.util.concurrent.Callable; | 13 import java.util.concurrent.Callable; |
14 import java.util.concurrent.ExecutionException; | 14 import java.util.concurrent.ExecutionException; |
15 import java.util.concurrent.FutureTask; | 15 import java.util.concurrent.FutureTask; |
16 | 16 |
17 /** | 17 /** |
18 * Helper methods to deal with threading related tasks. | 18 * Helper methods to deal with threading related tasks. |
19 */ | 19 */ |
20 public class ThreadUtils { | 20 public class ThreadUtils { |
21 | 21 |
22 private static final Object sLock = new Object(); | 22 private static final Object sLock = new Object(); |
23 | 23 |
24 private static boolean sWillOverride = false; | 24 private static boolean sWillOverride; |
25 | 25 |
26 private static Handler sUiThreadHandler = null; | 26 private static Handler sUiThreadHandler; |
27 | 27 |
28 public static void setWillOverrideUiThread() { | 28 public static void setWillOverrideUiThread() { |
29 synchronized (sLock) { | 29 synchronized (sLock) { |
30 sWillOverride = true; | 30 sWillOverride = true; |
31 } | 31 } |
32 } | 32 } |
33 | 33 |
34 @VisibleForTesting | 34 @VisibleForTesting |
35 public static void setUiThread(Looper looper) { | 35 public static void setUiThread(Looper looper) { |
36 synchronized (sLock) { | 36 synchronized (sLock) { |
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216 /** | 216 /** |
217 * Checks whether Thread priority is THREAD_PRIORITY_AUDIO or not. | 217 * Checks whether Thread priority is THREAD_PRIORITY_AUDIO or not. |
218 * @param tid Thread id. | 218 * @param tid Thread id. |
219 * @return true for THREAD_PRIORITY_AUDIO and false otherwise. | 219 * @return true for THREAD_PRIORITY_AUDIO and false otherwise. |
220 */ | 220 */ |
221 @CalledByNative | 221 @CalledByNative |
222 private static boolean isThreadPriorityAudio(int tid) { | 222 private static boolean isThreadPriorityAudio(int tid) { |
223 return Process.getThreadPriority(tid) == Process.THREAD_PRIORITY_AUDIO; | 223 return Process.getThreadPriority(tid) == Process.THREAD_PRIORITY_AUDIO; |
224 } | 224 } |
225 } | 225 } |
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