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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.
*/
#define LOG_TAG "VehicleObjectPool"
#include <VehicleObjectPool.h>
#include <VehicleUtils.h>
#include <assert.h>
#include <utils/Log.h>
namespace android {
namespace hardware {
namespace automotive {
namespace vehicle {
using ::aidl::android::hardware::automotive::vehicle::RawPropValues;
using ::aidl::android::hardware::automotive::vehicle::VehicleProperty;
using ::aidl::android::hardware::automotive::vehicle::VehiclePropertyType;
using ::aidl::android::hardware::automotive::vehicle::VehiclePropValue;
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtain(VehiclePropertyType type) {
if (isComplexType(type)) {
return obtain(type, 0);
}
return obtain(type, 1);
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtain(VehiclePropertyType type,
size_t vectorSize) {
if (isSingleValueType(type)) {
vectorSize = 1;
} else if (isComplexType(type)) {
vectorSize = 0;
}
return isDisposable(type, vectorSize) ? obtainDisposable(type, vectorSize)
: obtainRecyclable(type, vectorSize);
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtain(const VehiclePropValue& src) {
int propId = src.prop;
VehiclePropertyType type = getPropType(propId);
size_t vectorSize = getVehicleRawValueVectorSize(src.value, type);
if (vectorSize == 0 && !isComplexType(type)) {
ALOGW("empty vehicle prop value, contains no content");
ALOGW("empty vehicle prop value, contains no content, prop: %d", propId);
// Return any empty VehiclePropValue.
return RecyclableType{new VehiclePropValue{}, mDisposableDeleter};
}
auto dest = obtain(type, vectorSize);
dest->prop = propId;
dest->areaId = src.areaId;
dest->status = src.status;
dest->timestamp = src.timestamp;
copyVehicleRawValue(&dest->value, src.value);
return dest;
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtainInt32(int32_t value) {
auto val = obtain(VehiclePropertyType::INT32);
val->value.int32Values[0] = value;
return val;
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtainInt64(int64_t value) {
auto val = obtain(VehiclePropertyType::INT64);
val->value.int64Values[0] = value;
return val;
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtainFloat(float value) {
auto val = obtain(VehiclePropertyType::FLOAT);
val->value.floatValues[0] = value;
return val;
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtainString(const char* cstr) {
auto val = obtain(VehiclePropertyType::STRING);
val->value.stringValue = cstr;
return val;
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtainComplex() {
return obtain(VehiclePropertyType::MIXED);
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtainRecyclable(
VehiclePropertyType type, size_t vectorSize) {
std::scoped_lock<std::mutex> lock(mLock);
assert(vectorSize > 0);
// VehiclePropertyType is not overlapping with vectorSize.
int32_t key = static_cast<int32_t>(type) | static_cast<int32_t>(vectorSize);
auto it = mValueTypePools.find(key);
if (it == mValueTypePools.end()) {
auto newPool(std::make_unique<InternalPool>(type, vectorSize, mMaxPoolObjectsSize,
getVehiclePropValueSize));
it = mValueTypePools.emplace(key, std::move(newPool)).first;
}
return it->second->obtain();
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtainBoolean(bool value) {
return obtainInt32(value);
}
VehiclePropValuePool::RecyclableType VehiclePropValuePool::obtainDisposable(
VehiclePropertyType valueType, size_t vectorSize) const {
return RecyclableType{createVehiclePropValueVec(valueType, vectorSize).release(),
mDisposableDeleter};
}
void VehiclePropValuePool::InternalPool::recycle(VehiclePropValue* o) {
if (o == nullptr) {
ALOGE("Attempt to recycle nullptr");
return;
}
if (!check(&o->value)) {
ALOGE("Discarding value for prop 0x%x because it contains "
"data that is not consistent with this pool. "
"Expected type: %d, vector size: %zu",
o->prop, toInt(mPropType), mVectorSize);
delete o;
} else {
ObjectPool<VehiclePropValue>::recycle(o);
}
}
bool VehiclePropValuePool::InternalPool::check(RawPropValues* v) {
return check(&v->int32Values, (VehiclePropertyType::INT32 == mPropType ||
VehiclePropertyType::INT32_VEC == mPropType ||
VehiclePropertyType::BOOLEAN == mPropType)) &&
check(&v->floatValues, (VehiclePropertyType::FLOAT == mPropType ||
VehiclePropertyType::FLOAT_VEC == mPropType)) &&
check(&v->int64Values, (VehiclePropertyType::INT64 == mPropType ||
VehiclePropertyType::INT64_VEC == mPropType)) &&
check(&v->byteValues, VehiclePropertyType::BYTES == mPropType) &&
v->stringValue.size() == 0;
}
VehiclePropValue* VehiclePropValuePool::InternalPool::createObject() {
return createVehiclePropValueVec(mPropType, mVectorSize).release();
}
} // namespace vehicle
} // namespace automotive
} // namespace hardware
} // namespace android
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