mapleFU commented on code in PR #1699: URL: https://github.com/apache/kvrocks/pull/1699#discussion_r1305173829
########## src/types/redis_sb_chain.cc: ########## @@ -0,0 +1,240 @@ +/* + * 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 "redis_sb_chain.h" + +namespace redis { + +void SBChain::appendBFSuffix(const Slice &ns_key, uint16_t filters_index, std::string *output) { + output->clear(); + + output->append(ns_key.data(), ns_key.size()); + output->append(kBloomFilterSeparator); + PutFixed16(output, filters_index); +} + +void SBChain ::appendBFMetaSuffix(const Slice &bf_key, std::string *output) { + output->clear(); + + output->append(bf_key.data(), bf_key.size()); + output->append(kBloomFilterSeparator); + output->append("meta"); +} + +void SBChain::bfInit(BFMetadata *bf_metadata, std::string *bf_data, uint32_t entries, double error) { + bf_metadata->entries = entries; + bf_metadata->error = error; + bf_metadata->size = 0; + + uint32_t bf_bytes = BlockSplitBloomFilter::OptimalNumOfBytes(entries, error); + bf_metadata->bf_bytes = bf_bytes; + + BlockSplitBloomFilter block_split_bloom_filter; + block_split_bloom_filter.Init(bf_bytes); + *bf_data = block_split_bloom_filter.GetData(); +} + +rocksdb::Status SBChain::getSBChainMetadata(const Slice &ns_key, SBChainMetadata *metadata) { + return Database::GetMetadata(kRedisBloomFilter, ns_key, metadata); +} + +rocksdb::Status SBChain::getBFMetadata(const Slice &bf_meta_key, BFMetadata *metadata) { + LatestSnapShot ss(storage_); + rocksdb::ReadOptions read_options; + read_options.snapshot = ss.GetSnapShot(); + std::string bytes; + auto s = storage_->Get(read_options, bf_meta_key, &bytes); + + std::string old_metadata; + metadata->Encode(&old_metadata); + + if (!s.ok()) return s; + metadata->Decode(bytes); + + if (metadata->Expired()) { + metadata->Decode(old_metadata); + return rocksdb::Status::NotFound(kErrMsgKeyExpired); + } + return s; +} + +rocksdb::Status SBChain::createSBChain(const Slice &ns_key, double error_rate, uint32_t capacity, uint16_t expansion, + uint16_t scaling, SBChainMetadata &sb_chain_metadata) { + sb_chain_metadata.n_filters = 1; + sb_chain_metadata.expansion = expansion; + sb_chain_metadata.scaling = scaling; + sb_chain_metadata.size = 0; + + auto batch = storage_->GetWriteBatchBase(); + WriteBatchLogData log_data(kRedisBloomFilter, {"createSBChain"}); + batch->PutLogData(log_data.Encode()); + + std::string sb_chain_meta_bytes; + sb_chain_metadata.Encode(&sb_chain_meta_bytes); + batch->Put(metadata_cf_handle_, ns_key, sb_chain_meta_bytes); + + std::string bf_key; + appendBFSuffix(ns_key, sb_chain_metadata.n_filters - 1, &bf_key); + std::string bf_meta_key; + appendBFMetaSuffix(bf_key, &bf_meta_key); + BFMetadata bf_metadata; + std::string bf_data; + bfInit(&bf_metadata, &bf_data, capacity, error_rate); + std::string bf_meta_bytes; + bf_metadata.Encode(&bf_meta_bytes); + batch->Put(bf_meta_key, bf_meta_bytes); + batch->Put(bf_key, bf_data); + + return storage_->Write(storage_->DefaultWriteOptions(), batch->GetWriteBatch()); +} + +rocksdb::Status SBChain::bloomCheckAdd(const Slice &bf_key, const std::string &item, ReadWriteMode mode, int &ret) { + std::string bf_data; + rocksdb::Status s = storage_->Get(rocksdb::ReadOptions(), bf_key, &bf_data); + BlockSplitBloomFilter block_split_bloom_filter; + block_split_bloom_filter.Init(bf_data); Review Comment: ```suggestion block_split_bloom_filter.Init(std::move(bf_data)); ``` ########## src/types/redis_sb_chain.cc: ########## @@ -0,0 +1,240 @@ +/* + * 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 "redis_sb_chain.h" + +namespace redis { + +void SBChain::appendBFSuffix(const Slice &ns_key, uint16_t filters_index, std::string *output) { + output->clear(); + + output->append(ns_key.data(), ns_key.size()); + output->append(kBloomFilterSeparator); + PutFixed16(output, filters_index); +} + +void SBChain ::appendBFMetaSuffix(const Slice &bf_key, std::string *output) { + output->clear(); + + output->append(bf_key.data(), bf_key.size()); + output->append(kBloomFilterSeparator); + output->append("meta"); +} + +void SBChain::bfInit(BFMetadata *bf_metadata, std::string *bf_data, uint32_t entries, double error) { + bf_metadata->entries = entries; + bf_metadata->error = error; + bf_metadata->size = 0; + + uint32_t bf_bytes = BlockSplitBloomFilter::OptimalNumOfBytes(entries, error); + bf_metadata->bf_bytes = bf_bytes; + + BlockSplitBloomFilter block_split_bloom_filter; + block_split_bloom_filter.Init(bf_bytes); + *bf_data = block_split_bloom_filter.GetData(); +} + +rocksdb::Status SBChain::getSBChainMetadata(const Slice &ns_key, SBChainMetadata *metadata) { + return Database::GetMetadata(kRedisBloomFilter, ns_key, metadata); +} + +rocksdb::Status SBChain::getBFMetadata(const Slice &bf_meta_key, BFMetadata *metadata) { + LatestSnapShot ss(storage_); + rocksdb::ReadOptions read_options; + read_options.snapshot = ss.GetSnapShot(); + std::string bytes; + auto s = storage_->Get(read_options, bf_meta_key, &bytes); + + std::string old_metadata; + metadata->Encode(&old_metadata); + + if (!s.ok()) return s; + metadata->Decode(bytes); + + if (metadata->Expired()) { + metadata->Decode(old_metadata); + return rocksdb::Status::NotFound(kErrMsgKeyExpired); + } + return s; +} + +rocksdb::Status SBChain::createSBChain(const Slice &ns_key, double error_rate, uint32_t capacity, uint16_t expansion, + uint16_t scaling, SBChainMetadata &sb_chain_metadata) { + sb_chain_metadata.n_filters = 1; + sb_chain_metadata.expansion = expansion; + sb_chain_metadata.scaling = scaling; + sb_chain_metadata.size = 0; + + auto batch = storage_->GetWriteBatchBase(); + WriteBatchLogData log_data(kRedisBloomFilter, {"createSBChain"}); + batch->PutLogData(log_data.Encode()); + + std::string sb_chain_meta_bytes; + sb_chain_metadata.Encode(&sb_chain_meta_bytes); + batch->Put(metadata_cf_handle_, ns_key, sb_chain_meta_bytes); + + std::string bf_key; + appendBFSuffix(ns_key, sb_chain_metadata.n_filters - 1, &bf_key); + std::string bf_meta_key; + appendBFMetaSuffix(bf_key, &bf_meta_key); + BFMetadata bf_metadata; + std::string bf_data; + bfInit(&bf_metadata, &bf_data, capacity, error_rate); + std::string bf_meta_bytes; + bf_metadata.Encode(&bf_meta_bytes); + batch->Put(bf_meta_key, bf_meta_bytes); + batch->Put(bf_key, bf_data); + + return storage_->Write(storage_->DefaultWriteOptions(), batch->GetWriteBatch()); +} + +rocksdb::Status SBChain::bloomCheckAdd(const Slice &bf_key, const std::string &item, ReadWriteMode mode, int &ret) { + std::string bf_data; + rocksdb::Status s = storage_->Get(rocksdb::ReadOptions(), bf_key, &bf_data); + BlockSplitBloomFilter block_split_bloom_filter; + block_split_bloom_filter.Init(bf_data); + + uint64_t h = BlockSplitBloomFilter::Hash(item.data(), item.size()); + bool found = block_split_bloom_filter.FindHash(h); + + ret = 0; + if (found && mode == ReadWriteMode::MODE_READ) { + ret = 1; + } else if (!found && mode == ReadWriteMode::MODE_WRITE) { + auto batch = storage_->GetWriteBatchBase(); + ret = 1; + block_split_bloom_filter.InsertHash(h); + bf_data = block_split_bloom_filter.GetData(); + batch->Put(bf_key, bf_data); Review Comment: ```suggestion batch->Put(bf_key, block_split_bloom_filter.GetData()); ``` -- This is an automated message from the Apache Git Service. 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