70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/*
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* Copyright 2021 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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#include "SystemSuspendAidl.h"
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#include <binder/IPCThreadState.h>
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namespace aidl {
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namespace android {
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namespace system {
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namespace suspend {
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static inline int getCallingPid() {
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return ::android::IPCThreadState::self()->getCallingPid();
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}
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WakeLock::WakeLock(SystemSuspend* systemSuspend, const std::string& name, int pid)
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: mReleased(), mSystemSuspend(systemSuspend), mName(name), mPid(pid) {
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mSystemSuspend->incSuspendCounter(mName);
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}
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WakeLock::~WakeLock() {
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releaseOnce();
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}
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ndk::ScopedAStatus WakeLock::release() {
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releaseOnce();
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return ndk::ScopedAStatus::ok();
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}
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void WakeLock::releaseOnce() {
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std::call_once(mReleased, [this]() {
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mSystemSuspend->decSuspendCounter(mName);
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mSystemSuspend->updateWakeLockStatOnRelease(mName, mPid);
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});
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}
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SystemSuspendAidl::SystemSuspendAidl(SystemSuspend* systemSuspend)
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: mSystemSuspend(systemSuspend) {}
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ndk::ScopedAStatus SystemSuspendAidl::acquireWakeLock(WakeLockType /* type */,
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const std::string& name,
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std::shared_ptr<IWakeLock>* _aidl_return) {
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auto pid = getCallingPid();
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if (_aidl_return == nullptr) {
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return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_ILLEGAL_ARGUMENT));
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}
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*_aidl_return = ndk::SharedRefBase::make<WakeLock>(mSystemSuspend, name, pid);
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mSystemSuspend->updateWakeLockStatOnAcquire(name, pid);
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return ndk::ScopedAStatus::ok();
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}
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} // namespace suspend
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} // namespace system
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} // namespace android
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} // namespace aidl
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