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