e55356486f
Call addService using a reference to a strong pointer to the service object, such that the proper IBinder object is ref counted, instead of passing the object's this pointer. Bug: None Change-Id: I72cac08c835a17b8cc263b2dc34864420b7a2841
104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
/*
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* Copyright (C) 2013 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 "BatteryPropertiesRegistrar.h"
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#include <batteryservice/BatteryService.h>
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#include <batteryservice/IBatteryPropertiesListener.h>
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#include <batteryservice/IBatteryPropertiesRegistrar.h>
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#include <binder/IPCThreadState.h>
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#include <binder/IServiceManager.h>
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#include <binder/PermissionCache.h>
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#include <private/android_filesystem_config.h>
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#include <utils/Errors.h>
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#include <utils/Mutex.h>
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#include <utils/String16.h>
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#include "healthd.h"
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namespace android {
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void BatteryPropertiesRegistrar::publish(
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const sp<BatteryPropertiesRegistrar>& service) {
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defaultServiceManager()->addService(String16("batteryproperties"), service);
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}
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void BatteryPropertiesRegistrar::notifyListeners(struct BatteryProperties props) {
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Mutex::Autolock _l(mRegistrationLock);
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for (size_t i = 0; i < mListeners.size(); i++) {
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mListeners[i]->batteryPropertiesChanged(props);
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}
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}
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void BatteryPropertiesRegistrar::registerListener(const sp<IBatteryPropertiesListener>& listener) {
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{
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if (listener == NULL)
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return;
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Mutex::Autolock _l(mRegistrationLock);
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// check whether this is a duplicate
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for (size_t i = 0; i < mListeners.size(); i++) {
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if (IInterface::asBinder(mListeners[i]) == IInterface::asBinder(listener)) {
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return;
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}
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}
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mListeners.add(listener);
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IInterface::asBinder(listener)->linkToDeath(this);
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}
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healthd_battery_update();
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}
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void BatteryPropertiesRegistrar::unregisterListener(const sp<IBatteryPropertiesListener>& listener) {
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if (listener == NULL)
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return;
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Mutex::Autolock _l(mRegistrationLock);
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for (size_t i = 0; i < mListeners.size(); i++) {
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if (IInterface::asBinder(mListeners[i]) == IInterface::asBinder(listener)) {
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IInterface::asBinder(mListeners[i])->unlinkToDeath(this);
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mListeners.removeAt(i);
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break;
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}
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}
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}
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status_t BatteryPropertiesRegistrar::getProperty(int id, struct BatteryProperty *val) {
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return healthd_get_property(id, val);
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}
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status_t BatteryPropertiesRegistrar::dump(int fd, const Vector<String16>& /*args*/) {
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IPCThreadState* self = IPCThreadState::self();
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const int pid = self->getCallingPid();
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const int uid = self->getCallingUid();
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if ((uid != AID_SHELL) &&
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!PermissionCache::checkPermission(
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String16("android.permission.DUMP"), pid, uid))
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return PERMISSION_DENIED;
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healthd_dump_battery_state(fd);
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return OK;
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}
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void BatteryPropertiesRegistrar::binderDied(const wp<IBinder>& who) {
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Mutex::Autolock _l(mRegistrationLock);
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for (size_t i = 0; i < mListeners.size(); i++) {
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if (IInterface::asBinder(mListeners[i]) == who) {
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mListeners.removeAt(i);
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break;
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}
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}
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}
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} // namespace android
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