761417898 commented on code in PR #192: URL: https://github.com/apache/tsfile/pull/192#discussion_r1712951753
########## cpp/src/reader/aligned_chunk_reader.cc: ########## @@ -0,0 +1,623 @@ +/* + * 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 "aligned_chunk_reader.h" + +#include "compress/compressor_factory.h" +#include "encoding/decoder_factory.h" + +using namespace common; +namespace storage { + +int AlignedChunkReader::init(ReadFile *read_file, String m_name, + TSDataType data_type, Filter *time_filter) { + read_file_ = read_file; + measurement_name_.shallow_copy_from(m_name); + time_decoder_ = DecoderFactory::alloc_time_decoder(); + value_decoder_ = nullptr; + compressor_ = nullptr; + time_filter_ = time_filter; + time_uncompressed_buf_ = nullptr; + value_uncompressed_buf_ = nullptr; + if (IS_NULL(time_decoder_)) { + return E_OOM; + } + return E_OK; +} + +void AlignedChunkReader::reset() { + time_chunk_meta_ = nullptr; + value_chunk_meta_ = nullptr; + time_chunk_header_.reset(); + value_chunk_header_.reset(); + cur_time_page_header_.reset(); + cur_value_page_header_.reset(); + + char *file_data_buf = time_in_stream_.get_wrapped_buf(); + if (file_data_buf != nullptr) { + mem_free(file_data_buf); + } + time_in_stream_.reset(); + file_data_buf = value_in_stream_.get_wrapped_buf(); + if (file_data_buf != nullptr) { + mem_free(file_data_buf); + } + value_in_stream_.reset(); + file_data_time_buf_size_ = 0; + file_data_value_buf_size_ = 0; + time_chunk_visit_offset_ = 0; + value_chunk_visit_offset_ = 0; +} + +void AlignedChunkReader::destroy() { + if (time_decoder_ != nullptr) { + time_decoder_->~Decoder(); + DecoderFactory::free(time_decoder_); + time_decoder_ = nullptr; + } + if (value_decoder_ != nullptr) { + value_decoder_->~Decoder(); + DecoderFactory::free(value_decoder_); + value_decoder_ = nullptr; + } + if (compressor_ != nullptr) { + compressor_->~Compressor(); + CompressorFactory::free(compressor_); + compressor_ = nullptr; + } + char *buf = time_in_stream_.get_wrapped_buf(); + if (buf != nullptr) { + mem_free(buf); + time_in_stream_.clear_wrapped_buf(); + } + cur_time_page_header_.reset(); + buf = value_in_stream_.get_wrapped_buf(); + if (buf != nullptr) { + mem_free(buf); + value_in_stream_.clear_wrapped_buf(); + } + cur_value_page_header_.reset(); +} + +int AlignedChunkReader::load_by_aligned_meta(ChunkMeta *time_chunk_meta, + ChunkMeta *value_chunk_meta) { + int ret = E_OK; + time_chunk_meta_ = time_chunk_meta; + value_chunk_meta_ = value_chunk_meta; +#if DEBUG_SE + std::cout << "AlignedChunkReader::load_by_meta, meta=" << *time_chunk_meta + << ", " << *value_chunk_meta << std::endl; +#endif + /* ================ deserialize time_chunk_header ================*/ + // at least, we can reader the chunk header and the first page header. + // TODO configurable + file_data_time_buf_size_ = 1024; + file_data_value_buf_size_ = 1024; + int32_t ret_read_len = 0; + char *time_file_data_buf = + (char *)mem_alloc(file_data_time_buf_size_, MOD_CHUNK_READER); + if (IS_NULL(time_file_data_buf)) { + return E_OOM; + } + ret = read_file_->read(time_chunk_meta_->offset_of_chunk_header_, + time_file_data_buf, file_data_time_buf_size_, + ret_read_len); + if (IS_SUCC(ret) && ret_read_len < ChunkHeader::MIN_SERIALIZED_SIZE) { + ret = E_TSFILE_CORRUPTED; + LOGE("file corrupted, ret=" << ret << ", offset=" + << time_chunk_meta_->offset_of_chunk_header_ + << "read_len=" << ret_read_len); + } + if (IS_SUCC(ret)) { + time_in_stream_.wrap_from(time_file_data_buf, ret_read_len); + if (RET_FAIL(time_chunk_header_.deserialize_from(time_in_stream_))) { + } else { + time_chunk_visit_offset_ = time_in_stream_.read_pos(); + } + } + /* ================ deserialize value_chunk_header ================*/ + ret_read_len = 0; + char *value_file_data_buf = + (char *)mem_alloc(file_data_value_buf_size_, MOD_CHUNK_READER); + if (IS_NULL(value_file_data_buf)) { + return E_OOM; + } + ret = read_file_->read(value_chunk_meta_->offset_of_chunk_header_, + value_file_data_buf, file_data_value_buf_size_, + ret_read_len); + if (IS_SUCC(ret) && ret_read_len < ChunkHeader::MIN_SERIALIZED_SIZE) { + ret = E_TSFILE_CORRUPTED; + LOGE("file corrupted, ret=" + << ret << ", offset=" << value_chunk_meta_->offset_of_chunk_header_ + << "read_len=" << ret_read_len); + } + if (IS_SUCC(ret)) { + value_in_stream_.wrap_from(value_file_data_buf, ret_read_len); + if (RET_FAIL(value_chunk_header_.deserialize_from(value_in_stream_))) { + } else if (RET_FAIL(alloc_compressor_and_value_decoder( + value_chunk_header_.encoding_type_, + value_chunk_header_.data_type_, + value_chunk_header_.compression_type_))) { + } else { + value_chunk_visit_offset_ = value_in_stream_.read_pos(); +#if DEBUG_SE + std::cout << "AlignedChunkReader::load_by_meta, time_chunk_header=" + << time_chunk_header_ + << ", value_chunk_header=" << value_chunk_header_ + << std::endl; +#endif + } + } + return ret; +} + +int AlignedChunkReader::alloc_compressor_and_value_decoder( + TSEncoding encoding, TSDataType data_type, CompressionType compression) { + if (value_decoder_ != nullptr) { + value_decoder_->reset(); + } else { + value_decoder_ = + DecoderFactory::alloc_value_decoder(encoding, data_type); + if (IS_NULL(value_decoder_)) { + return E_OOM; + } + } + + if (compressor_ != nullptr) { + compressor_->reset(false); + } else { + compressor_ = CompressorFactory::alloc_compressor(compression); + if (compressor_ == nullptr) { + return E_OOM; + } + } + return E_OK; +} + +int AlignedChunkReader::get_next_page(TsBlock *ret_tsblock, + Filter *oneshoot_filter) { + int ret = E_OK; + Filter *filter = + (oneshoot_filter != nullptr ? oneshoot_filter : time_filter_); + + if (prev_time_page_not_finish() && prev_value_page_not_finish()) { + ret = decode_time_value_buf_into_tsblock(ret_tsblock, oneshoot_filter); + return ret; + } + if (!prev_time_page_not_finish()) { + while (IS_SUCC(ret)) { + if (RET_FAIL(get_cur_page_header( + time_chunk_meta_, time_in_stream_, cur_time_page_header_, + time_chunk_visit_offset_, time_chunk_header_))) { + } else if (cur_page_statisify_filter(filter)) { + break; + } else if (RET_FAIL(skip_cur_time_page())) { + } + } + if (IS_SUCC(ret)) { + ret = decode_cur_time_page_data(); + } + } + if (!prev_value_page_not_finish()) { + while (IS_SUCC(ret)) { + if (RET_FAIL(get_cur_page_header( + value_chunk_meta_, value_in_stream_, cur_value_page_header_, + value_chunk_visit_offset_, value_chunk_header_))) { + } else if (cur_page_statisify_filter(filter)) { + break; + } else if (RET_FAIL(skip_cur_value_page())) { + } + } + if (IS_SUCC(ret)) { + ret = decode_cur_value_page_data(); + } + } + if (IS_SUCC(ret)) { + ret = decode_time_value_buf_into_tsblock(ret_tsblock, oneshoot_filter); + } + return ret; +} + +int AlignedChunkReader::get_cur_page_header(ChunkMeta *&chunk_meta, + common::ByteStream &in_stream, + PageHeader &cur_page_header, + uint32_t &chunk_visit_offset, + ChunkHeader &chunk_header) { + int ret = E_OK; + bool retry = true; + int cur_page_header_serialized_size = 0; + do { + in_stream.mark_read_pos(); + cur_page_header.reset(); + ret = cur_page_header.deserialize_from( + in_stream, !chunk_has_only_one_page(chunk_header), + chunk_header.data_type_); + cur_page_header_serialized_size = in_stream.get_mark_len(); + if (deserialize_buf_not_enough(ret) && retry) { + retry = false; + int32_t file_data_buf_size = + chunk_header.data_type_ == common::VECTOR + ? file_data_time_buf_size_ + : file_data_value_buf_size_; + if (E_OK == read_from_file_and_rewrap(in_stream, chunk_meta, + chunk_visit_offset, + file_data_buf_size)) { + continue; + } + } + break; + } while (true); + if (IS_SUCC(ret)) { + // visit a header + chunk_visit_offset += cur_page_header_serialized_size; + } +#if DEBUG_SE + std::cout << "get_cur_page_header, ret=" << ret << ", retry=" << retry + << ", cur_page_header=" << cur_page_header + << ", chunk_meta->offset_of_chunk_header_=" + << chunk_meta->offset_of_chunk_header_ + << ", cur_page_header_serialized_size=" + << cur_page_header_serialized_size << std::endl; +#endif + return ret; +} + +// reader at least @want_size bytes from file and wrap the buffer into +// @in_stream_ +int AlignedChunkReader::read_from_file_and_rewrap( + common::ByteStream &in_stream_, ChunkMeta *&chunk_meta, + uint32_t &chunk_visit_offset, int32_t file_data_buf_size, int want_size) { + int ret = E_OK; + const int DEFAULT_READ_SIZE = 4096; // may use page_size + page_header_size + char *file_data_buf = in_stream_.get_wrapped_buf(); + int offset = chunk_meta->offset_of_chunk_header_ + chunk_visit_offset; + int read_size = + (want_size < DEFAULT_READ_SIZE ? DEFAULT_READ_SIZE : want_size); + if (file_data_buf_size < read_size || read_size < file_data_buf_size / 10) { + file_data_buf = (char *)mem_realloc(file_data_buf, read_size); + if (IS_NULL(file_data_buf)) { + return E_OOM; + } + file_data_buf_size = read_size; + } + int ret_read_len = 0; + if (RET_FAIL(read_file_->read(offset, file_data_buf, DEFAULT_READ_SIZE, + ret_read_len))) { + } else { + in_stream_.wrap_from(file_data_buf, ret_read_len); +#ifdef DEBUG_SE + std::cout << "file offset = " << offset << " len = " << ret_read_len + << std::endl; + DEBUG_hex_dump_buf("wrapped buf = ", file_data_buf, 256); +#endif + } + return ret; +} + +bool AlignedChunkReader::cur_page_statisify_filter(Filter *filter) { + return filter == nullptr || cur_value_page_header_.statistic_ == nullptr || + filter->satisfy(cur_value_page_header_.statistic_); +} + +int AlignedChunkReader::skip_cur_value_page() { + int ret = E_OK; + // visit a page tv data + value_chunk_visit_offset_ += cur_value_page_header_.compressed_size_; + value_in_stream_.wrapped_buf_advance_read_pos( + cur_value_page_header_.compressed_size_); + return ret; +} + +int AlignedChunkReader::skip_cur_time_page() { + int ret = E_OK; + // visit a page tv data + time_chunk_visit_offset_ += cur_time_page_header_.compressed_size_; + time_in_stream_.wrapped_buf_advance_read_pos( + cur_time_page_header_.compressed_size_); + return ret; +} + +int AlignedChunkReader::decode_cur_time_page_data() { + int ret = E_OK; + + // Step 1: make sure we load the whole page data in @in_stream_ + if (time_in_stream_.remaining_size() < + cur_time_page_header_.compressed_size_) { + // std::cout << "decode_cur_page_data. in_stream_.remaining_size="<< + // in_stream_.remaining_size() << ", cur_page_header_.compressed_size_=" + // << cur_page_header_.compressed_size_ << std::endl; + if (RET_FAIL(read_from_file_and_rewrap( + time_in_stream_, time_chunk_meta_, time_chunk_visit_offset_, + cur_time_page_header_.compressed_size_, + file_data_time_buf_size_))) { + } + } + + char *time_compressed_buf = nullptr; + char *time_uncompressed_buf = nullptr; + uint32_t time_compressed_buf_size = 0; + uint32_t time_uncompressed_buf_size = 0; + char *time_buf = nullptr; + uint32_t time_buf_size = 0; + + // Step 2: do uncompress + if (IS_SUCC(ret)) { + time_compressed_buf = + time_in_stream_.get_wrapped_buf() + time_in_stream_.read_pos(); +#ifdef DEBUG_SE + std::cout << "AlignedChunkReader::decode_cur_page_data,time_in_stream_." + "get_wrapped_buf=" + << (void *)(time_in_stream_.get_wrapped_buf()) + << ", time_in_stream_.read_pos=" << time_in_stream_.read_pos() + << std::endl; +#endif + time_compressed_buf_size = cur_time_page_header_.compressed_size_; + time_in_stream_.wrapped_buf_advance_read_pos(time_compressed_buf_size); + time_chunk_visit_offset_ += time_compressed_buf_size; + if (RET_FAIL(compressor_->reset(false))) { + } else if (RET_FAIL(compressor_->uncompress( + time_compressed_buf, time_compressed_buf_size, + time_uncompressed_buf, time_uncompressed_buf_size))) { + } else { + time_uncompressed_buf_ = time_uncompressed_buf; + } +#ifdef DEBUG_SE + DEBUG_hex_dump_buf( + "AlignedChunkReader reader, time_uncompressed buf = ", + time_uncompressed_buf, time_uncompressed_buf_size); +#endif + if (ret != E_OK || time_uncompressed_buf_size != + cur_time_page_header_.uncompressed_size_) { + ret = E_TSFILE_CORRUPTED; + ASSERT(false); + } + } + + // Step 3: get time_buf & value_buf + if (IS_SUCC(ret)) { + int var_size = 0; + if (RET_FAIL(SerializationUtil::read_var_uint( + time_buf_size, time_uncompressed_buf, + time_uncompressed_buf_size, &var_size))) { + } else { + time_buf = time_uncompressed_buf + var_size; + if (time_uncompressed_buf_size < var_size + time_buf_size) { + ret = E_TSFILE_CORRUPTED; + ASSERT(false); + } + } + } + time_decoder_->reset(); +#ifdef DEBUG_SE + DEBUG_hex_dump_buf("AlignedChunkReader reader, time_buf = ", time_buf, + time_buf_size); +#endif + time_in_.wrap_from(time_buf, time_buf_size); + return ret; +} + +int AlignedChunkReader::decode_cur_value_page_data() { + int ret = E_OK; + + // Step 1: make sure we load the whole page data in @in_stream_ + if (value_in_stream_.remaining_size() < + cur_value_page_header_.compressed_size_) { + // std::cout << "decode_cur_page_data. in_stream_.remaining_size="<< + // in_stream_.remaining_size() << ", cur_page_header_.compressed_size_=" + // << cur_page_header_.compressed_size_ << std::endl; + if (RET_FAIL(read_from_file_and_rewrap( + value_in_stream_, value_chunk_meta_, value_chunk_visit_offset_, + cur_value_page_header_.compressed_size_, + file_data_value_buf_size_))) { + } + } + + char *value_compressed_buf = nullptr; + char *value_uncompressed_buf = nullptr; + uint32_t value_compressed_buf_size = 0; + uint32_t value_uncompressed_buf_size = 0; + char *value_buf = nullptr; + uint32_t value_buf_size = 0; + + // Step 2: do uncompress + if (IS_SUCC(ret)) { + value_compressed_buf = + value_in_stream_.get_wrapped_buf() + value_in_stream_.read_pos(); + value_compressed_buf_size = cur_value_page_header_.compressed_size_; + value_in_stream_.wrapped_buf_advance_read_pos( + value_compressed_buf_size); + value_chunk_visit_offset_ += value_compressed_buf_size; + if (RET_FAIL(compressor_->reset(false))) { + } else if (RET_FAIL(compressor_->uncompress( + value_compressed_buf, value_compressed_buf_size, + value_uncompressed_buf, value_uncompressed_buf_size))) { + } else { + value_uncompressed_buf_ = value_uncompressed_buf; + } +#ifdef DEBUG_SE + DEBUG_hex_dump_buf( + "AlignedChunkReader reader, value_uncompressed buf = ", + value_uncompressed_buf, value_uncompressed_buf_size); +#endif + if (ret != E_OK || value_uncompressed_buf_size != + cur_value_page_header_.uncompressed_size_) { + ret = E_TSFILE_CORRUPTED; + ASSERT(false); + } + } + // Step 3: get time_buf & value_buf + if (IS_SUCC(ret)) { + uint32_t value_uncompressed_buf_offset = 0; + value_page_data_num_ = + SerializationUtil::read_ui32(value_uncompressed_buf); + value_uncompressed_buf_offset += sizeof(uint32_t); + value_page_bit_map_.resize((value_page_data_num_ + 7) / 8); + for (unsigned char &i : value_page_bit_map_) { + i = *(value_uncompressed_buf + value_uncompressed_buf_offset); + value_uncompressed_buf_offset++; + } + cur_value_index = -1; + value_buf = value_uncompressed_buf + value_uncompressed_buf_offset; + value_buf_size = + value_uncompressed_buf_size - value_uncompressed_buf_offset; + } + value_decoder_->reset(); +#ifdef DEBUG_SE + DEBUG_hex_dump_buf("AlignedChunkReader reader, value_buf = ", value_buf, + value_buf_size); +#endif + value_in_.wrap_from(value_buf, value_buf_size); + return ret; +} + +int AlignedChunkReader::decode_time_value_buf_into_tsblock( + TsBlock *&ret_tsblock, Filter *filter) { + int ret = common::E_OK; + ret = decode_tv_buf_into_tsblock_by_datatype(time_in_, value_in_, + ret_tsblock, filter); + // if we return during @decode_tv_buf_into_tsblock, we should keep + // @uncompressed_buf_ valid until all TV pairs are decoded. + if (ret != E_OVERFLOW) { + if (time_uncompressed_buf_ != nullptr) { + compressor_->after_uncompress(time_uncompressed_buf_); + time_uncompressed_buf_ = nullptr; + } + if (value_uncompressed_buf_ != nullptr) { + compressor_->after_uncompress(value_uncompressed_buf_); + value_uncompressed_buf_ = nullptr; + } + if (!prev_value_page_not_finish()) { + value_in_.reset(); + } + if (!prev_time_page_not_finish()) { + time_in_.reset(); + } + } else { + ret = E_OK; + } + return ret; +} + +#define DECODE_TYPED_TV_INTO_TSBLOCK(CppType, ReadType, time_in, value_in, \ + row_appender) \ + do { \ + uint32_t mask = 1 << 7; \ + int64_t time = 0; \ + CppType value; \ + while ((time_decoder_->has_remaining() && \ + value_decoder_->has_remaining()) || \ + (time_in.has_remaining() && value_in.has_remaining())) { \ + cur_value_index++; \ + if (((value_page_bit_map_[cur_value_index / 8] & 0xFF) & \ + (mask >> (cur_value_index % 8))) == 0) { \ + RET_FAIL(time_decoder_->read_int64(time, time_in)); \ + continue; \ + } \ + if (UNLIKELY(!row_appender.add_row())) { \ + ret = E_OVERFLOW; \ + break; \ + } else if (RET_FAIL(time_decoder_->read_int64(time, time_in))) { \ + } else if (RET_FAIL(value_decoder_->read_##ReadType(value, \ + value_in))) { \ + } else if (filter != nullptr && !filter->satisfy(time, value)) { \ + row_appender.backoff_add_row(); \ + continue; \ + } else { \ + /*std::cout << "decoder: time=" << time << ", value=" << value \ + * << std::endl;*/ \ + row_appender.append(0, (char *)&time, sizeof(time)); \ + row_appender.append(1, (char *)&value, sizeof(value)); \ + } \ + } \ + } while (false) + +int AlignedChunkReader::i32_DECODE_TYPED_TV_INTO_TSBLOCK( Review Comment: fixed -- This is an automated message from the Apache Git Service. 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