| /* |
| * Copyright 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_PROCESS_INFO_SERVICE_H |
| #define ANDROID_PROCESS_INFO_SERVICE_H |
| |
| #ifndef __ANDROID_VNDK__ |
| |
| #include <binder/IProcessInfoService.h> |
| #include <utils/Errors.h> |
| #include <utils/Singleton.h> |
| #include <sys/types.h> |
| |
| namespace android { |
| |
| // ---------------------------------------------------------------------- |
| |
| class ProcessInfoService : public Singleton<ProcessInfoService> { |
| |
| friend class Singleton<ProcessInfoService>; |
| sp<IProcessInfoService> mProcessInfoService; |
| Mutex mProcessInfoLock; |
| |
| ProcessInfoService(); |
| |
| status_t getProcessStatesImpl(size_t length, /*in*/ int32_t* pids, /*out*/ int32_t* states); |
| status_t getProcessStatesScoresImpl(size_t length, /*in*/ int32_t* pids, |
| /*out*/ int32_t* states, /*out*/ int32_t *scores); |
| void updateBinderLocked(); |
| |
| static const int BINDER_ATTEMPT_LIMIT = 5; |
| |
| public: |
| |
| /** |
| * For each PID in the given "pids" input array, write the current process state |
| * for that process into the "states" output array, or |
| * ActivityManager.PROCESS_STATE_NONEXISTENT * to indicate that no process with the given PID |
| * exists. |
| * |
| * Returns NO_ERROR if this operation was successful, or a negative error code otherwise. |
| */ |
| static status_t getProcessStatesFromPids(size_t length, /*in*/ int32_t* pids, |
| /*out*/ int32_t* states) { |
| return ProcessInfoService::getInstance().getProcessStatesImpl(length, /*in*/ pids, |
| /*out*/ states); |
| } |
| |
| /** |
| * For each PID in the given "pids" input array, write the current process state |
| * for that process into the "states" output array, or |
| * ActivityManager.PROCESS_STATE_NONEXISTENT * to indicate that no process with the given PID |
| * exists. OoM scores will also be written in the "scores" output array. |
| * Please also note that clients calling this method need to have |
| * "GET_PROCESS_STATE_AND_OOM_SCORE" permission. |
| * |
| * Returns NO_ERROR if this operation was successful, or a negative error code otherwise. |
| */ |
| static status_t getProcessStatesScoresFromPids(size_t length, /*in*/ int32_t* pids, |
| /*out*/ int32_t* states, /*out*/ int32_t *scores) { |
| return ProcessInfoService::getInstance().getProcessStatesScoresImpl( |
| length, /*in*/ pids, /*out*/ states, /*out*/ scores); |
| } |
| }; |
| |
| // ---------------------------------------------------------------------- |
| |
| } // namespace android |
| |
| #else // __ANDROID_VNDK__ |
| #error "This header is not visible to vendors" |
| #endif // __ANDROID_VNDK__ |
| |
| #endif // ANDROID_PROCESS_INFO_SERVICE_H |
| |