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80 lines
2.6 KiB
80 lines
2.6 KiB
/* |
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* Copyright (C) 2013 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef ANDROID_THREAD_DEFS_H |
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#define ANDROID_THREAD_DEFS_H |
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#include "graphics.h" |
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#if defined(__cplusplus) |
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extern "C" { |
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#endif |
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enum { |
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/* |
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* *********************************************** |
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* ** Keep in sync with android.os.Process.java ** |
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* *********************************************** |
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* |
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* This maps directly to the "nice" priorities we use in Android. |
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* A thread priority should be chosen inverse-proportionally to |
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* the amount of work the thread is expected to do. The more work |
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* a thread will do, the less favorable priority it should get so that |
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* it doesn't starve the system. Threads not behaving properly might |
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* be "punished" by the kernel. |
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* Use the levels below when appropriate. Intermediate values are |
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* acceptable, preferably use the {MORE|LESS}_FAVORABLE constants below. |
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*/ |
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ANDROID_PRIORITY_LOWEST = 19, |
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/* use for background tasks */ |
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ANDROID_PRIORITY_BACKGROUND = 10, |
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/* most threads run at normal priority */ |
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ANDROID_PRIORITY_NORMAL = 0, |
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/* threads currently running a UI that the user is interacting with */ |
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ANDROID_PRIORITY_FOREGROUND = -2, |
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/* the main UI thread has a slightly more favorable priority */ |
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ANDROID_PRIORITY_DISPLAY = -4, |
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/* ui service treads might want to run at a urgent display (uncommon) */ |
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ANDROID_PRIORITY_URGENT_DISPLAY = HAL_PRIORITY_URGENT_DISPLAY, |
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/* all normal video threads */ |
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ANDROID_PRIORITY_VIDEO = -10, |
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/* all normal audio threads */ |
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ANDROID_PRIORITY_AUDIO = -16, |
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/* service audio threads (uncommon) */ |
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ANDROID_PRIORITY_URGENT_AUDIO = -19, |
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/* should never be used in practice. regular process might not |
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* be allowed to use this level */ |
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ANDROID_PRIORITY_HIGHEST = -20, |
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ANDROID_PRIORITY_DEFAULT = ANDROID_PRIORITY_NORMAL, |
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ANDROID_PRIORITY_MORE_FAVORABLE = -1, |
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ANDROID_PRIORITY_LESS_FAVORABLE = +1, |
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}; |
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#if defined(__cplusplus) |
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} |
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#endif |
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#endif /* ANDROID_THREAD_DEFS_H */
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