1 /*
2  * Copyright (C) 2022 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 package android.car.os;
18 
19 import android.car.os.ThreadPolicyWithPriority;
20 
21 /** @hide */
22 interface ICarPerformanceService {
23     /**
24      * Sets the thread priority for a specific thread.
25      *
26      * The thread must belong to the calling process.
27      *
28      * @throws SecurityException If permission check failed.
29      * @throws ServiceSpecificException If the operation failed.
30      * @throws IllegalArgumentException If the provided tid does not belong to the calling process.
31      */
setThreadPriority(int tid, in ThreadPolicyWithPriority policyWithPriority)32     void setThreadPriority(int tid, in ThreadPolicyWithPriority policyWithPriority);
33 
34     /**
35      * Gets the thread priority for a specific thread.
36      *
37      * The thread must belong to the calling process.
38      *
39      * @throws SecurityException If permission check failed.
40      * @throws ServiceSpecificException If the operation failed.
41      * @throws IllegalArgumentException If the provided tid does not belong to the calling process.
42      */
getThreadPriority(int tid)43     ThreadPolicyWithPriority getThreadPriority(int tid);
44 }
45