83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#include "ob_table_mgr_meta_block_reader.h"
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#include "ob_partition_service.h"
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#include "ob_table_mgr.h"
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using namespace oceanbase;
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using namespace storage;
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using namespace blocksstable;
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using namespace common;
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ObTableMgrMetaBlockReader::ObTableMgrMetaBlockReader()
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: allocator_(ObModIds::OB_TABLE_MGR_ALLOCATOR), read_buf_(NULL), offset_(0), buf_size_(0)
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{}
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ObTableMgrMetaBlockReader::~ObTableMgrMetaBlockReader()
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{}
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int ObTableMgrMetaBlockReader::parse(const blocksstable::ObMacroBlockCommonHeader& common_header,
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const blocksstable::ObLinkedMacroBlockHeader& linked_header, const char* buf, const int64_t buf_len)
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{
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int ret = OB_SUCCESS;
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int64_t pos = 0;
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if (OB_UNLIKELY(ObMacroBlockCommonHeader::TableMgrMeta != common_header.get_attr())) {
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ret = OB_INVALID_DATA;
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STORAGE_LOG(WARN, "The header attr is not sstable mgr meta, ", K(ret), K(common_header.get_attr()));
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} else if (OB_UNLIKELY(ObMacroBlockCommonHeader::TableMgrMeta != linked_header.attr_)) {
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ret = OB_INVALID_DATA;
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STORAGE_LOG(WARN, "The header attr is not sstable mgr meta, ", K(ret), K(linked_header.attr_));
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} else {
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if (0 == linked_header.meta_data_count_) {
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int64_t serialize_size = linked_header.user_data2_;
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if (serialize_size > 0) {
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allocator_.reuse();
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offset_ = 0;
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int64_t size = serialize_size + OB_FILE_SYSTEM.get_macro_block_size();
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if (NULL == (read_buf_ = static_cast<char*>(allocator_.alloc(size)))) {
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ret = OB_ALLOCATE_MEMORY_FAILED;
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STORAGE_LOG(WARN, "fail to allocate memory", K(ret), K(size));
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} else {
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MEMCPY(read_buf_, buf, buf_len);
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offset_ += buf_len;
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buf_size_ = serialize_size;
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}
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} else {
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// medium serialize block with the partition meta larger than 2M
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MEMCPY(read_buf_ + offset_, buf, buf_len);
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offset_ += buf_len;
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}
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} else {
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if (0 == offset_) {
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read_buf_ = const_cast<char*>(buf);
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buf_size_ = buf_len;
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} else {
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// last serialize block with the partition meta larger than 2M
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MEMCPY(read_buf_ + offset_, buf, buf_len);
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offset_ = 0;
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}
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}
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int64_t log_seq_num = linked_header.user_data1_;
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for (int64_t i = 0; OB_SUCC(ret) && i < linked_header.meta_data_count_; ++i) {
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if (OB_FAIL(ObTableMgr::get_instance().load_sstable(read_buf_, buf_size_, pos))) {
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STORAGE_LOG(WARN, "deserialize current partition failed.", K(ret), K_(buf_size), K(pos));
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} else {
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STORAGE_LOG(TRACE, "replay load sstable", K(i), K(pos), KP(read_buf_), K_(buf_size), K(log_seq_num));
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}
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}
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}
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return ret;
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}
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