152f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk/* 252f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * Copyright 2015 The Android Open Source Project 352f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * 452f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * Licensed under the Apache License, Version 2.0 (the "License"); 552f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * you may not use this file except in compliance with the License. 652f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * You may obtain a copy of the License at 752f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * 852f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * http://www.apache.org/licenses/LICENSE-2.0 952f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * 1052f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * Unless required by applicable law or agreed to in writing, software 1152f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * distributed under the License is distributed on an "AS IS" BASIS, 1252f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1352f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * See the License for the specific language governing permissions and 1452f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * limitations under the License. 1552f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk */ 1652f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 1752f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk#ifndef ANDROID_PROCESS_INFO_SERVICE_H 1852f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk#define ANDROID_PROCESS_INFO_SERVICE_H 1952f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 2052f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk#include <binder/IProcessInfoService.h> 2152f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk#include <utils/Errors.h> 2252f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk#include <utils/Singleton.h> 2352f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk#include <sys/types.h> 2452f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 2552f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunknamespace android { 2652f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 2752f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk// ---------------------------------------------------------------------- 2852f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 2952f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunkclass ProcessInfoService : public Singleton<ProcessInfoService> { 3052f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 3152f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk friend class Singleton<ProcessInfoService>; 3252f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk sp<IProcessInfoService> mProcessInfoService; 3352f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk Mutex mProcessInfoLock; 3452f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 3552f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk ProcessInfoService(); 3652f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 3752f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk status_t getProcessStatesImpl(size_t length, /*in*/ int32_t* pids, /*out*/ int32_t* states); 38b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev status_t getProcessStatesScoresImpl(size_t length, /*in*/ int32_t* pids, 39b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev /*out*/ int32_t* states, /*out*/ int32_t *scores); 4052f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk void updateBinderLocked(); 4152f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 4252f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk static const int BINDER_ATTEMPT_LIMIT = 5; 4352f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 4452f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunkpublic: 4552f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 4652f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk /** 4752f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * For each PID in the given "pids" input array, write the current process state 4852f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * for that process into the "states" output array, or 4952f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * ActivityManager.PROCESS_STATE_NONEXISTENT * to indicate that no process with the given PID 5052f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * exists. 5152f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * 5252f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk * Returns NO_ERROR if this operation was successful, or a negative error code otherwise. 5352f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk */ 5452f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk static status_t getProcessStatesFromPids(size_t length, /*in*/ int32_t* pids, 5552f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk /*out*/ int32_t* states) { 5652f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk return ProcessInfoService::getInstance().getProcessStatesImpl(length, /*in*/ pids, 5752f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk /*out*/ states); 5852f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk } 5952f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 60b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev /** 61b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev * For each PID in the given "pids" input array, write the current process state 62b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev * for that process into the "states" output array, or 63b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev * ActivityManager.PROCESS_STATE_NONEXISTENT * to indicate that no process with the given PID 64b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev * exists. OoM scores will also be written in the "scores" output array. 65b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev * Please also note that clients calling this method need to have 66b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev * "GET_PROCESS_STATE_AND_OOM_SCORE" permission. 67b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev * 68b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev * Returns NO_ERROR if this operation was successful, or a negative error code otherwise. 69b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev */ 70b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev static status_t getProcessStatesScoresFromPids(size_t length, /*in*/ int32_t* pids, 71b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev /*out*/ int32_t* states, /*out*/ int32_t *scores) { 72b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev return ProcessInfoService::getInstance().getProcessStatesScoresImpl( 73b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev length, /*in*/ pids, /*out*/ states, /*out*/ scores); 74b4f33df8911e1b2804714fc4e78e8172d2eadd46Emilian Peev } 7552f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk}; 7652f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 7752f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk// ---------------------------------------------------------------------- 7852f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 7952f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk}; // namespace android 8052f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 8152f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk#endif // ANDROID_PROCESS_INFO_SERVICE_H 8252f0407d6871c43d1e6502ec6754d5811c86ed82Ruben Brunk 83