pivotal-jbarrett commented on a change in pull request #909: URL: https://github.com/apache/geode-native/pull/909#discussion_r787984684
########## File path: c-bindings/src/data_serializable_raw.cpp ########## @@ -0,0 +1,80 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 <iterator> + +// C++ client public headers +#include "geode/DataInput.hpp" +#include "geode/DataOutput.hpp" +#include "geode/internal/DataSerializablePrimitive.hpp" + +// C client public headers +#include "data_serializable_raw.hpp" + +// C client private headers + +using apache::geode::client::DataInput; +using apache::geode::client::DataOutput; + +namespace apache { +namespace geode { +namespace client { +namespace internal { + +DataSerializableRaw::DataSerializableRaw(const int8_t* data, size_t size) { + bytes_.reserve(size); + std::copy(data, data + size, std::back_inserter(bytes_)); +} + +std::shared_ptr<DataSerializableRaw> DataSerializableRaw::create( + const int8_t* data, size_t size) { + return std::make_shared<DataSerializableRaw>(data, size); +} + +void DataSerializableRaw::toData(DataOutput& dataOutput) const { + dataOutput.writeBytesOnly(bytes_.data() + dsCodeSize_, + bytes_.size() - dsCodeSize_); +} + +void DataSerializableRaw::fromData(DataInput& dataInput) { + dataInput.readBytesOnly(bytes_.data() + dsCodeSize_, + bytes_.size() - dsCodeSize_); +} + +DSCode DataSerializableRaw::getDsCode() const { + return static_cast<DSCode>(bytes_[0]); +} + +bool DataSerializableRaw::operator==(const CacheableKey& other) const { + if (auto otherKey = dynamic_cast<const DataSerializableRaw*>(&other)) { + return bytes_ == otherKey->bytes_; + } + + return false; +} + +int32_t DataSerializableRaw::hashcode() const { + if (hashCode_ == 0) { + hashCode_ = internal::geode_hash<std::vector<int8_t>>{}(bytes_); Review comment: When I thought about this problem years ago I felt that the C-binding layer would either need to below the local caching and serialization layers and effectively be a networking layer, or the C-binding will need to keep track of pointers back to the original C types and some function pointers. Neither of them are going to be easy. ``` class VoidCachableKey { public void VoidCacheableKey(const void* key, int32_t (*hash)(const void *), bool (*equals)(const void *, const void *, const char* serialized, size_t serializedLength) : ... {} int32_t hashcode() { return hash_(key); } bool equals(const VoidCachableKey& other) { return equals_(key, other.key_); } } ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
