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/*
* Copyright (C) 2013 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.
*/
#include "BatteryPropertiesRegistrar.h"
#include <batteryservice/BatteryService.h>
#include <batteryservice/IBatteryPropertiesListener.h>
#include <batteryservice/IBatteryPropertiesRegistrar.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/PermissionCache.h>
#include <private/android_filesystem_config.h>
#include <utils/Errors.h>
#include <utils/Mutex.h>
#include <utils/String16.h>
#include "healthd.h"
namespace android {
void BatteryPropertiesRegistrar::publish() {
defaultServiceManager()->addService(String16("batteryproperties"), this);
}
void BatteryPropertiesRegistrar::notifyListeners(struct BatteryProperties props) {
Mutex::Autolock _l(mRegistrationLock);
for (size_t i = 0; i < mListeners.size(); i++) {
mListeners[i]->batteryPropertiesChanged(props);
}
}
void BatteryPropertiesRegistrar::registerListener(const sp<IBatteryPropertiesListener>& listener) {
{
if (listener == NULL)
return;
Mutex::Autolock _l(mRegistrationLock);
// check whether this is a duplicate
for (size_t i = 0; i < mListeners.size(); i++) {
if (IInterface::asBinder(mListeners[i]) == IInterface::asBinder(listener)) {
return;
}
}
mListeners.add(listener);
IInterface::asBinder(listener)->linkToDeath(this);
}
healthd_battery_update();
}
void BatteryPropertiesRegistrar::unregisterListener(const sp<IBatteryPropertiesListener>& listener) {
if (listener == NULL)
return;
Mutex::Autolock _l(mRegistrationLock);
for (size_t i = 0; i < mListeners.size(); i++) {
if (IInterface::asBinder(mListeners[i]) == IInterface::asBinder(listener)) {
IInterface::asBinder(mListeners[i])->unlinkToDeath(this);
mListeners.removeAt(i);
break;
}
}
}
status_t BatteryPropertiesRegistrar::getProperty(int id, struct BatteryProperty *val) {
return healthd_get_property(id, val);
}
status_t BatteryPropertiesRegistrar::dump(int fd, const Vector<String16>& /*args*/) {
IPCThreadState* self = IPCThreadState::self();
const int pid = self->getCallingPid();
const int uid = self->getCallingUid();
if ((uid != AID_SHELL) &&
!PermissionCache::checkPermission(
String16("android.permission.DUMP"), pid, uid))
return PERMISSION_DENIED;
healthd_dump_battery_state(fd);
return OK;
}
void BatteryPropertiesRegistrar::binderDied(const wp<IBinder>& who) {
Mutex::Autolock _l(mRegistrationLock);
for (size_t i = 0; i < mListeners.size(); i++) {
if (IInterface::asBinder(mListeners[i]) == who) {
mListeners.removeAt(i);
break;
}
}
}
} // namespace android
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