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/*
* Copyright (C) 2017 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.
*/
#define LOG_TAG "VehiclePropertyStore"
#include <log/log.h>
#include <common/include/vhal_v2_0/VehicleUtils.h>
#include "VehiclePropertyStore.h"
namespace android {
namespace hardware {
namespace automotive {
namespace vehicle {
namespace V2_0 {
bool VehiclePropertyStore::RecordId::operator==(const VehiclePropertyStore::RecordId& other) const {
return prop == other.prop && area == other.area && token == other.token;
}
bool VehiclePropertyStore::RecordId::operator<(const VehiclePropertyStore::RecordId& other) const {
return prop < other.prop
|| (prop == other.prop && area < other.area)
|| (prop == other.prop && area == other.area && token < other.token);
}
void VehiclePropertyStore::registerProperty(const VehiclePropConfig& config,
VehiclePropertyStore::TokenFunction tokenFunc) {
MuxGuard g(mLock);
mConfigs.insert({ config.prop, RecordConfig { config, tokenFunc } });
}
bool VehiclePropertyStore::writeValue(const VehiclePropValue& propValue,
bool updateStatus) {
MuxGuard g(mLock);
if (!mConfigs.count(propValue.prop)) return false;
RecordId recId = getRecordIdLocked(propValue);
VehiclePropValue* valueToUpdate = const_cast<VehiclePropValue*>(getValueOrNullLocked(recId));
if (valueToUpdate == nullptr) {
mPropertyValues.insert({ recId, propValue });
} else {
valueToUpdate->timestamp = propValue.timestamp;
valueToUpdate->value = propValue.value;
if (updateStatus) {
valueToUpdate->status = propValue.status;
}
}
return true;
}
void VehiclePropertyStore::removeValue(const VehiclePropValue& propValue) {
MuxGuard g(mLock);
RecordId recId = getRecordIdLocked(propValue);
auto it = mPropertyValues.find(recId);
if (it != mPropertyValues.end()) {
mPropertyValues.erase(it);
}
}
void VehiclePropertyStore::removeValuesForProperty(int32_t propId) {
MuxGuard g(mLock);
auto range = findRangeLocked(propId);
mPropertyValues.erase(range.first, range.second);
}
std::vector<VehiclePropValue> VehiclePropertyStore::readAllValues() const {
MuxGuard g(mLock);
std::vector<VehiclePropValue> allValues;
allValues.reserve(mPropertyValues.size());
for (auto&& it : mPropertyValues) {
allValues.push_back(it.second);
}
return allValues;
}
std::vector<VehiclePropValue> VehiclePropertyStore::readValuesForProperty(int32_t propId) const {
std::vector<VehiclePropValue> values;
MuxGuard g(mLock);
auto range = findRangeLocked(propId);
for (auto it = range.first; it != range.second; ++it) {
values.push_back(it->second);
}
return values;
}
std::unique_ptr<VehiclePropValue> VehiclePropertyStore::readValueOrNull(
const VehiclePropValue& request) const {
MuxGuard g(mLock);
RecordId recId = getRecordIdLocked(request);
const VehiclePropValue* internalValue = getValueOrNullLocked(recId);
return internalValue ? std::make_unique<VehiclePropValue>(*internalValue) : nullptr;
}
std::unique_ptr<VehiclePropValue> VehiclePropertyStore::readValueOrNull(
int32_t prop, int32_t area, int64_t token) const {
RecordId recId = {prop, isGlobalProp(prop) ? 0 : area, token };
MuxGuard g(mLock);
const VehiclePropValue* internalValue = getValueOrNullLocked(recId);
return internalValue ? std::make_unique<VehiclePropValue>(*internalValue) : nullptr;
}
std::vector<VehiclePropConfig> VehiclePropertyStore::getAllConfigs() const {
MuxGuard g(mLock);
std::vector<VehiclePropConfig> configs;
configs.reserve(mConfigs.size());
for (auto&& recordConfigIt: mConfigs) {
configs.push_back(recordConfigIt.second.propConfig);
}
return configs;
}
const VehiclePropConfig* VehiclePropertyStore::getConfigOrNull(int32_t propId) const {
MuxGuard g(mLock);
auto recordConfigIt = mConfigs.find(propId);
return recordConfigIt != mConfigs.end() ? &recordConfigIt->second.propConfig : nullptr;
}
const VehiclePropConfig* VehiclePropertyStore::getConfigOrDie(int32_t propId) const {
auto cfg = getConfigOrNull(propId);
if (!cfg) {
ALOGW("%s: config not found for property: 0x%x", __func__, propId);
abort();
}
return cfg;
}
VehiclePropertyStore::RecordId VehiclePropertyStore::getRecordIdLocked(
const VehiclePropValue& valuePrototype) const {
RecordId recId = {
.prop = valuePrototype.prop,
.area = isGlobalProp(valuePrototype.prop) ? 0 : valuePrototype.areaId,
.token = 0
};
auto it = mConfigs.find(recId.prop);
if (it == mConfigs.end()) return {};
if (it->second.tokenFunction != nullptr) {
recId.token = it->second.tokenFunction(valuePrototype);
}
return recId;
}
const VehiclePropValue* VehiclePropertyStore::getValueOrNullLocked(
const VehiclePropertyStore::RecordId& recId) const {
auto it = mPropertyValues.find(recId);
return it == mPropertyValues.end() ? nullptr : &it->second;
}
VehiclePropertyStore::PropertyMapRange VehiclePropertyStore::findRangeLocked(int32_t propId) const {
// Based on the fact that mPropertyValues is a sorted map by RecordId.
auto beginIt = mPropertyValues.lower_bound( RecordId { propId, INT32_MIN, 0 });
auto endIt = mPropertyValues.lower_bound( RecordId { propId + 1, INT32_MIN, 0 });
return PropertyMapRange { beginIt, endIt };
}
} // namespace V2_0
} // namespace vehicle
} // namespace automotive
} // namespace hardware
} // namespace android
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