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106 lines
3.7 KiB
C++
106 lines
3.7 KiB
C++
//
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// Created by Ziyang Hu on 2022/7/3.
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//
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#include <iostream>
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#include "db.h"
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#include "cozorocks/src/bridge/mod.rs.h"
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shared_ptr<RocksDbBridge> open_db(const DbOpts &opts, RocksDbStatus &status, bool use_cmp, RustComparatorFn cmp_impl) {
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auto options = make_unique<Options>();
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if (opts.prepare_for_bulk_load) {
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options->PrepareForBulkLoad();
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}
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if (opts.increase_parallelism > 0) {
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options->IncreaseParallelism(opts.increase_parallelism);
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}
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if (opts.optimize_level_style_compaction) {
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options->OptimizeLevelStyleCompaction();
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}
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options->create_if_missing = opts.create_if_missing;
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options->paranoid_checks = opts.paranoid_checks;
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if (opts.enable_blob_files) {
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options->enable_blob_files = true;
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options->min_blob_size = opts.min_blob_size;
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options->blob_file_size = opts.blob_file_size;
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options->enable_blob_garbage_collection = opts.enable_blob_garbage_collection;
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}
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if (opts.use_bloom_filter) {
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BlockBasedTableOptions table_options;
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table_options.filter_policy.reset(NewBloomFilterPolicy(opts.bloom_filter_bits_per_key, false));
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table_options.whole_key_filtering = opts.bloom_filter_whole_key_filtering;
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options->table_factory.reset(NewBlockBasedTableFactory(table_options));
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}
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if (opts.use_capped_prefix_extractor) {
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options->prefix_extractor.reset(NewCappedPrefixTransform(opts.capped_prefix_extractor_len));
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}
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if (opts.use_fixed_prefix_extractor) {
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options->prefix_extractor.reset(NewFixedPrefixTransform(opts.fixed_prefix_extractor_len));
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}
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RustComparator *cmp = nullptr;
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if (use_cmp) {
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cmp = new RustComparator(
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string(opts.comparator_name),
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opts.comparator_different_bytes_can_be_equal,
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cmp_impl);
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options->comparator = cmp;
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}
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shared_ptr<RocksDbBridge> db_wrapper = shared_ptr<RocksDbBridge>(nullptr);
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if (opts.optimistic) {
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auto db = new OptimisticRocksDb();
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db->options = std::move(options);
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db->db_path = string(opts.db_path);
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db->comparator.reset(cmp);
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OptimisticTransactionDB *txn_db = nullptr;
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write_status(OptimisticTransactionDB::Open(*db->options, db->db_path, &txn_db), status);
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db->db.reset(txn_db);
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db->destroy_on_exit = opts.destroy_on_exit;
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db_wrapper.reset(db);
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} else {
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auto db = new PessimisticRocksDb();
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db->options = std::move(options);
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db->db_path = string(opts.db_path);
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db->tdb_opts = make_unique<TransactionDBOptions>();
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db->comparator.reset(cmp);
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TransactionDB *txn_db = nullptr;
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write_status(TransactionDB::Open(*db->options, *db->tdb_opts, db->db_path, &txn_db), status);
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db->db.reset(txn_db);
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db->destroy_on_exit = opts.destroy_on_exit;
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db_wrapper.reset(db);
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}
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return db_wrapper;
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}
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PessimisticRocksDb::~PessimisticRocksDb() {
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if (destroy_on_exit && (db != nullptr)) {
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cerr << "destroying database on exit: " << db_path << endl;
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auto status = db->Close();
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if (!status.ok()) {
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cerr << status.ToString() << endl;
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}
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db.reset();
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auto status2 = DestroyDB(db_path, *options);
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if (!status2.ok()) {
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cerr << status2.ToString() << endl;
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}
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}
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}
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OptimisticRocksDb::~OptimisticRocksDb() {
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if (destroy_on_exit) {
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cerr << "destroying database on exit: " << db_path << endl;
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auto status = db->Close();
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if (!status.ok()) {
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cerr << status.ToString() << endl;
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}
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db.reset();
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auto status2 = DestroyDB(db_path, *options);
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if (!status2.ok()) {
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cerr << status.ToString() << endl;
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}
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}
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} |