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1 | /* |
2 | * Copyright (C) 2013 The Android Open Source Project | |
3 | * | |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #ifndef ANDROID_THREAD_DEFS_H | |
18 | #define ANDROID_THREAD_DEFS_H | |
19 | ||
20 | /* FREDRIK */ | |
21 | /* #include "graphics.h" */ | |
22 | ||
23 | #if defined(__cplusplus) | |
24 | extern "C" { | |
25 | #endif | |
26 | ||
27 | enum { | |
28 | /* | |
29 | * *********************************************** | |
30 | * ** Keep in sync with android.os.Process.java ** | |
31 | * *********************************************** | |
32 | * | |
33 | * This maps directly to the "nice" priorities we use in Android. | |
34 | * A thread priority should be chosen inverse-proportionally to | |
35 | * the amount of work the thread is expected to do. The more work | |
36 | * a thread will do, the less favorable priority it should get so that | |
37 | * it doesn't starve the system. Threads not behaving properly might | |
38 | * be "punished" by the kernel. | |
39 | * Use the levels below when appropriate. Intermediate values are | |
40 | * acceptable, preferably use the {MORE|LESS}_FAVORABLE constants below. | |
41 | */ | |
42 | ANDROID_PRIORITY_LOWEST = 19, | |
43 | ||
44 | /* use for background tasks */ | |
45 | ANDROID_PRIORITY_BACKGROUND = 10, | |
46 | ||
47 | /* most threads run at normal priority */ | |
48 | ANDROID_PRIORITY_NORMAL = 0, | |
49 | ||
50 | /* threads currently running a UI that the user is interacting with */ | |
51 | ANDROID_PRIORITY_FOREGROUND = -2, | |
52 | ||
53 | /* the main UI thread has a slightly more favorable priority */ | |
54 | ANDROID_PRIORITY_DISPLAY = -4, | |
55 | ||
56 | /* ui service treads might want to run at a urgent display (uncommon) */ | |
57 | ANDROID_PRIORITY_URGENT_DISPLAY = ANDROID_PRIORITY_DISPLAY /* FREDRIK */, | |
58 | ||
59 | /* all normal audio threads */ | |
60 | ANDROID_PRIORITY_AUDIO = -16, | |
61 | ||
62 | /* service audio threads (uncommon) */ | |
63 | ANDROID_PRIORITY_URGENT_AUDIO = -19, | |
64 | ||
65 | /* should never be used in practice. regular process might not | |
66 | * be allowed to use this level */ | |
67 | ANDROID_PRIORITY_HIGHEST = -20, | |
68 | ||
69 | ANDROID_PRIORITY_DEFAULT = ANDROID_PRIORITY_NORMAL, | |
70 | ANDROID_PRIORITY_MORE_FAVORABLE = -1, | |
71 | ANDROID_PRIORITY_LESS_FAVORABLE = +1, | |
72 | }; | |
73 | ||
74 | #if defined(__cplusplus) | |
75 | } | |
76 | #endif | |
77 | ||
78 | #endif /* ANDROID_THREAD_DEFS_H */ |