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/*
* Copyright (C) 2021 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 "ConnectedClient.h"
#include "ParcelableUtils.h"
#include <VehicleHalTypes.h>
#include <utils/Log.h>
#include <inttypes.h>
#include <unordered_set>
#include <vector>
namespace android {
namespace hardware {
namespace automotive {
namespace vehicle {
namespace {
using ::aidl::android::hardware::automotive::vehicle::GetValueResult;
using ::aidl::android::hardware::automotive::vehicle::GetValueResults;
using ::aidl::android::hardware::automotive::vehicle::IVehicleCallback;
using ::aidl::android::hardware::automotive::vehicle::SetValueResult;
using ::aidl::android::hardware::automotive::vehicle::SetValueResults;
using ::aidl::android::hardware::automotive::vehicle::StatusCode;
using ::aidl::android::hardware::automotive::vehicle::VehiclePropValue;
using ::aidl::android::hardware::automotive::vehicle::VehiclePropValues;
using ::android::base::Result;
using ::ndk::ScopedAStatus;
// A function to call the specific callback based on results type.
template <class T>
ScopedAStatus callCallback(std::shared_ptr<IVehicleCallback> callback, const T& results);
template <>
ScopedAStatus callCallback<GetValueResults>(std::shared_ptr<IVehicleCallback> callback,
const GetValueResults& results) {
return callback->onGetValues(results);
}
template <>
ScopedAStatus callCallback<SetValueResults>(std::shared_ptr<IVehicleCallback> callback,
const SetValueResults& results) {
return callback->onSetValues(results);
}
// Send a single GetValue/SetValue result through the callback.
template <class ResultType, class ResultsType>
void sendGetOrSetValueResult(std::shared_ptr<IVehicleCallback> callback, const ResultType& result) {
ResultsType parcelableResults;
parcelableResults.payloads.resize(1);
parcelableResults.payloads[0] = result;
if (ScopedAStatus callbackStatus = callCallback(callback, parcelableResults);
!callbackStatus.isOk()) {
ALOGE("failed to call callback, error: %s, code: %d", callbackStatus.getMessage(),
callbackStatus.getServiceSpecificError());
}
}
// Send all the GetValue/SetValue results through callback, one result in each callback invocation.
template <class ResultType, class ResultsType>
void sendGetOrSetValueResultsSeparately(std::shared_ptr<IVehicleCallback> callback,
const std::vector<ResultType>& results) {
for (const auto& result : results) {
sendGetOrSetValueResult<ResultType, ResultsType>(callback, result);
}
}
// Send all the GetValue/SetValue results through callback in a single callback invocation.
template <class ResultType, class ResultsType>
void sendGetOrSetValueResults(std::shared_ptr<IVehicleCallback> callback,
const std::vector<ResultType>& results) {
ResultsType parcelableResults;
ScopedAStatus status = vectorToStableLargeParcelable(results, &parcelableResults);
if (status.isOk()) {
if (ScopedAStatus callbackStatus = callCallback(callback, parcelableResults);
!callbackStatus.isOk()) {
ALOGE("failed to call callback, error: %s, code: %d", status.getMessage(),
status.getServiceSpecificError());
}
return;
}
int statusCode = status.getServiceSpecificError();
ALOGE("failed to marshal result into large parcelable, error: "
"%s, code: %d",
status.getMessage(), statusCode);
sendGetOrSetValueResultsSeparately<ResultType, ResultsType>(callback, results);
}
// Specify the functions for GetValues and SetValues types.
template void sendGetOrSetValueResult<GetValueResult, GetValueResults>(
std::shared_ptr<IVehicleCallback> callback, const GetValueResult& result);
template void sendGetOrSetValueResult<SetValueResult, SetValueResults>(
std::shared_ptr<IVehicleCallback> callback, const SetValueResult& result);
template void sendGetOrSetValueResults<GetValueResult, GetValueResults>(
std::shared_ptr<IVehicleCallback> callback, const std::vector<GetValueResult>& results);
template void sendGetOrSetValueResults<SetValueResult, SetValueResults>(
std::shared_ptr<IVehicleCallback> callback, const std::vector<SetValueResult>& results);
template void sendGetOrSetValueResultsSeparately<GetValueResult, GetValueResults>(
std::shared_ptr<IVehicleCallback> callback, const std::vector<GetValueResult>& results);
template void sendGetOrSetValueResultsSeparately<SetValueResult, SetValueResults>(
std::shared_ptr<IVehicleCallback> callback, const std::vector<SetValueResult>& results);
} // namespace
ConnectedClient::ConnectedClient(std::shared_ptr<IVehicleCallback> callback)
: mCallback(callback) {}
template <class ResultType, class ResultsType>
GetSetValuesClient<ResultType, ResultsType>::GetSetValuesClient(
std::shared_ptr<IVehicleCallback> callback)
: ConnectedClient(callback) {
mResultCallback = std::make_shared<const std::function<void(std::vector<ResultType>)>>(
[callback](std::vector<ResultType> results) {
return sendGetOrSetValueResults<ResultType, ResultsType>(callback, results);
});
}
template <class ResultType, class ResultsType>
std::shared_ptr<const std::function<void(std::vector<ResultType>)>>
GetSetValuesClient<ResultType, ResultsType>::getResultCallback() {
return mResultCallback;
}
template <class ResultType, class ResultsType>
void GetSetValuesClient<ResultType, ResultsType>::sendResults(
const std::vector<ResultType>& results) {
return sendGetOrSetValueResults<ResultType, ResultsType>(mCallback, results);
}
template <class ResultType, class ResultsType>
void GetSetValuesClient<ResultType, ResultsType>::sendResultsSeparately(
const std::vector<ResultType>& results) {
return sendGetOrSetValueResultsSeparately<ResultType, ResultsType>(mCallback, results);
}
template class GetSetValuesClient<GetValueResult, GetValueResults>;
template class GetSetValuesClient<SetValueResult, SetValueResults>;
} // namespace vehicle
} // namespace automotive
} // namespace hardware
} // namespace android
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