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c_src/sst_file_reader.h

// Copyright (c) 2018-2025 Benoit Chesneau
//
// This file is provided 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.
//
#pragma once
#include <memory>
#include "erl_nif.h"
namespace rocksdb {
class SstFileReader;
}
namespace erocksdb {
class SstFileReaderObject {
protected:
static ErlNifResourceType* m_SstFileReader_RESOURCE;
public:
explicit SstFileReaderObject(std::unique_ptr<rocksdb::SstFileReader> reader);
~SstFileReaderObject();
rocksdb::SstFileReader* reader();
static void CreateSstFileReaderType(ErlNifEnv * Env);
static void SstFileReaderResourceCleanup(ErlNifEnv *Env, void * Arg);
static SstFileReaderObject * CreateSstFileReaderResource(std::unique_ptr<rocksdb::SstFileReader> reader);
static SstFileReaderObject * RetrieveSstFileReaderResource(ErlNifEnv * Env, const ERL_NIF_TERM & term);
private:
std::unique_ptr<rocksdb::SstFileReader> reader_;
};
// NIF functions
ERL_NIF_TERM SstFileReaderOpen(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM SstFileReaderIterator(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM SstFileReaderGetTableProperties(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM SstFileReaderVerifyChecksum(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM ReleaseSstFileReader(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
}