c29c2baa69
init should be able to register native services with lmkd so that they can be killed when needed. Only processes with oom_score_adjust not equal to the default -1000 will be registered with lmkd because with the score that low the process is unkillable anyway. Inform lmkd when a registered process is killed so that the record can be removed. Change init.rc to start lmkd during init phase so that it is there to register other services. Replace hardcoded oom_score_adj values with appropriate definitions. Bug: 129011369 Test: boot and verify native service registration Change-Id: Ie5ed62203395120d86dc1c8250fae01aa0b3c511 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
/*
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* Copyright (C) 2019 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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#pragma once
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#include <sys/types.h>
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#include <string>
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namespace android {
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namespace init {
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static const int MIN_OOM_SCORE_ADJUST = -1000;
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static const int MAX_OOM_SCORE_ADJUST = 1000;
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// service with default score is unkillable
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static const int DEFAULT_OOM_SCORE_ADJUST = MIN_OOM_SCORE_ADJUST;
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#if defined(__ANDROID__)
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void LmkdRegister(const std::string& name, uid_t uid, pid_t pid, int oom_score_adjust);
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void LmkdUnregister(const std::string& name, pid_t pid);
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#else // defined(__ANDROID__)
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static inline void LmkdRegister(const std::string&, uid_t, pid_t, int) {}
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static inline void LmkdUnregister(const std::string&, pid_t) {}
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#endif // defined(__ANDROID__)
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} // namespace init
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} // namespace android
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