Ruben Brunk | 52f0407 | 2015-01-28 18:13:33 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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_PROCESS_INFO_SERVICE_H |
| 18 | #define ANDROID_PROCESS_INFO_SERVICE_H |
| 19 | |
| 20 | #include <binder/IProcessInfoService.h> |
| 21 | #include <utils/Errors.h> |
| 22 | #include <utils/Singleton.h> |
| 23 | #include <sys/types.h> |
| 24 | |
| 25 | namespace android { |
| 26 | |
| 27 | // ---------------------------------------------------------------------- |
| 28 | |
| 29 | class ProcessInfoService : public Singleton<ProcessInfoService> { |
| 30 | |
| 31 | friend class Singleton<ProcessInfoService>; |
| 32 | sp<IProcessInfoService> mProcessInfoService; |
| 33 | Mutex mProcessInfoLock; |
| 34 | |
| 35 | ProcessInfoService(); |
| 36 | |
| 37 | status_t getProcessStatesImpl(size_t length, /*in*/ int32_t* pids, /*out*/ int32_t* states); |
Emilian Peev | b4f33df | 2017-02-02 09:57:18 +0000 | [diff] [blame^] | 38 | status_t getProcessStatesScoresImpl(size_t length, /*in*/ int32_t* pids, |
| 39 | /*out*/ int32_t* states, /*out*/ int32_t *scores); |
Ruben Brunk | 52f0407 | 2015-01-28 18:13:33 -0800 | [diff] [blame] | 40 | void updateBinderLocked(); |
| 41 | |
| 42 | static const int BINDER_ATTEMPT_LIMIT = 5; |
| 43 | |
| 44 | public: |
| 45 | |
| 46 | /** |
| 47 | * For each PID in the given "pids" input array, write the current process state |
| 48 | * for that process into the "states" output array, or |
| 49 | * ActivityManager.PROCESS_STATE_NONEXISTENT * to indicate that no process with the given PID |
| 50 | * exists. |
| 51 | * |
| 52 | * Returns NO_ERROR if this operation was successful, or a negative error code otherwise. |
| 53 | */ |
| 54 | static status_t getProcessStatesFromPids(size_t length, /*in*/ int32_t* pids, |
| 55 | /*out*/ int32_t* states) { |
| 56 | return ProcessInfoService::getInstance().getProcessStatesImpl(length, /*in*/ pids, |
| 57 | /*out*/ states); |
| 58 | } |
| 59 | |
Emilian Peev | b4f33df | 2017-02-02 09:57:18 +0000 | [diff] [blame^] | 60 | /** |
| 61 | * For each PID in the given "pids" input array, write the current process state |
| 62 | * for that process into the "states" output array, or |
| 63 | * ActivityManager.PROCESS_STATE_NONEXISTENT * to indicate that no process with the given PID |
| 64 | * exists. OoM scores will also be written in the "scores" output array. |
| 65 | * Please also note that clients calling this method need to have |
| 66 | * "GET_PROCESS_STATE_AND_OOM_SCORE" permission. |
| 67 | * |
| 68 | * Returns NO_ERROR if this operation was successful, or a negative error code otherwise. |
| 69 | */ |
| 70 | static status_t getProcessStatesScoresFromPids(size_t length, /*in*/ int32_t* pids, |
| 71 | /*out*/ int32_t* states, /*out*/ int32_t *scores) { |
| 72 | return ProcessInfoService::getInstance().getProcessStatesScoresImpl( |
| 73 | length, /*in*/ pids, /*out*/ states, /*out*/ scores); |
| 74 | } |
Ruben Brunk | 52f0407 | 2015-01-28 18:13:33 -0800 | [diff] [blame] | 75 | }; |
| 76 | |
| 77 | // ---------------------------------------------------------------------- |
| 78 | |
| 79 | }; // namespace android |
| 80 | |
| 81 | #endif // ANDROID_PROCESS_INFO_SERVICE_H |
| 82 | |