1 /* 2 * Copyright (C) 2017 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 package android.frameworks.schedulerservice@1.0; 17 18 interface ISchedulingPolicyService { 19 enum Priority : int32_t { 20 MIN = 1, 21 MAX = 99, 22 }; 23 24 /** 25 * Request real-time priority for a specific thread in a process. 26 * 27 * @param pid Process ID. 28 * @param tid Thread ID. 29 * @param priority Value within [Priority:MIN, Priority:MAX] 30 * 31 * @return success whether or not priority was successfully set 32 */ 33 requestPriority(int32_t pid, int32_t tid, int32_t priority) 34 generates (bool success); 35 36 /** 37 * Must return 0 if no priority is allowed. 38 * 39 * @return priority Max priority that can be set with 40 * requestPriority. 41 */ 42 getMaxAllowedPriority() generates (int32_t priority); 43 }; 44
