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/*
* Copyright (C) 2018 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 <mutex>
#include <unistd.h>
#include <binder/Binder.h>
#include <binder/IServiceManager.h>
#include <sensorprivacy/SensorPrivacyManager.h>
#include <utils/SystemClock.h>
namespace android {
SensorPrivacyManager::SensorPrivacyManager()
{
}
sp<hardware::ISensorPrivacyManager> SensorPrivacyManager::getService()
{
std::lock_guard<Mutex> scoped_lock(mLock);
int64_t startTime = 0;
sp<hardware::ISensorPrivacyManager> service = mService;
while (service == nullptr || !IInterface::asBinder(service)->isBinderAlive()) {
sp<IBinder> binder = defaultServiceManager()->checkService(String16("sensor_privacy"));
if (binder == nullptr) {
// Wait for the sensor privacy service to come back...
if (startTime == 0) {
startTime = uptimeMillis();
ALOGI("Waiting for sensor privacy service");
} else if ((uptimeMillis() - startTime) > 1000000) {
ALOGW("Waiting too long for sensor privacy service, giving up");
service = nullptr;
break;
}
usleep(25000);
} else {
service = interface_cast<hardware::ISensorPrivacyManager>(binder);
mService = service;
}
}
return service;
}
bool SensorPrivacyManager::supportsSensorToggle(int sensor) {
if (mSupportedCache.find(sensor) == mSupportedCache.end()) {
sp<hardware::ISensorPrivacyManager> service = getService();
if (service != nullptr) {
bool result;
service->supportsSensorToggle(sensor, &result);
mSupportedCache[sensor] = result;
return result;
}
// if the SensorPrivacyManager is not available then assume sensor privacy feature isn't
// supported
return false;
}
return mSupportedCache[sensor];
}
void SensorPrivacyManager::addSensorPrivacyListener(
const sp<hardware::ISensorPrivacyListener>& listener)
{
sp<hardware::ISensorPrivacyManager> service = getService();
if (service != nullptr) {
service->addSensorPrivacyListener(listener);
}
}
status_t SensorPrivacyManager::addIndividualSensorPrivacyListener(int userId, int sensor,
const sp<hardware::ISensorPrivacyListener>& listener)
{
sp<hardware::ISensorPrivacyManager> service = getService();
if (service != nullptr) {
return service->addIndividualSensorPrivacyListener(userId, sensor, listener)
.transactionError();
}
return UNEXPECTED_NULL;
}
void SensorPrivacyManager::removeSensorPrivacyListener(
const sp<hardware::ISensorPrivacyListener>& listener)
{
sp<hardware::ISensorPrivacyManager> service = getService();
if (service != nullptr) {
service->removeSensorPrivacyListener(listener);
}
}
bool SensorPrivacyManager::isSensorPrivacyEnabled()
{
sp<hardware::ISensorPrivacyManager> service = getService();
if (service != nullptr) {
bool result;
service->isSensorPrivacyEnabled(&result);
return result;
}
// if the SensorPrivacyManager is not available then assume sensor privacy is disabled
return false;
}
bool SensorPrivacyManager::isIndividualSensorPrivacyEnabled(int userId, int sensor)
{
sp<hardware::ISensorPrivacyManager> service = getService();
if (service != nullptr) {
bool result;
service->isIndividualSensorPrivacyEnabled(userId, sensor, &result);
return result;
}
// if the SensorPrivacyManager is not available then assume sensor privacy is disabled
return false;
}
status_t SensorPrivacyManager::isIndividualSensorPrivacyEnabled(int userId, int sensor,
bool &returnVal)
{
sp<hardware::ISensorPrivacyManager> service = getService();
if (service != nullptr) {
binder::Status res = service->isIndividualSensorPrivacyEnabled(userId, sensor, &returnVal);
return res.transactionError();
}
// if the SensorPrivacyManager is not available then assume sensor privacy is disabled
returnVal = false;
return UNKNOWN_ERROR;
}
status_t SensorPrivacyManager::linkToDeath(const sp<IBinder::DeathRecipient>& recipient)
{
sp<hardware::ISensorPrivacyManager> service = getService();
if (service != nullptr) {
return IInterface::asBinder(service)->linkToDeath(recipient);
}
return INVALID_OPERATION;
}
status_t SensorPrivacyManager::unlinkToDeath(const sp<IBinder::DeathRecipient>& recipient)
{
sp<hardware::ISensorPrivacyManager> service = getService();
if (service != nullptr) {
return IInterface::asBinder(service)->unlinkToDeath(recipient);
}
return INVALID_OPERATION;
}
}; // namespace android
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