80 lines
2.1 KiB
C++
80 lines
2.1 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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#define USING_LOG_PREFIX STORAGE
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#include "ob_pg_meta_checkpoint_writer.h"
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using namespace oceanbase::common;
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using namespace oceanbase::blocksstable;
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using namespace oceanbase::storage;
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ObPGMetaItem::ObPGMetaItem() : buf_(nullptr), buf_len_(0)
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{}
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void ObPGMetaItem::set_serialize_buf(const char* buf, const int64_t buf_len)
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{
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buf_ = buf;
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buf_len_ = buf_len;
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}
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int ObPGMetaItem::serialize(const char*& buf, int64_t& buf_len)
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{
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int ret = OB_SUCCESS;
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if (OB_ISNULL(buf_)) {
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ret = OB_ERR_SYS;
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LOG_WARN("error sys, buf must not be null", K(ret));
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} else {
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buf = buf_;
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buf_len = buf_len_;
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}
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return ret;
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}
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ObPGMetaCheckpointWriter::ObPGMetaCheckpointWriter() : is_inited_(false), writer_(nullptr), pg_meta_()
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{}
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int ObPGMetaCheckpointWriter::init(ObPGMetaItem& pg_meta, ObPGMetaItemWriter& writer)
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{
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int ret = OB_SUCCESS;
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if (OB_UNLIKELY(is_inited_)) {
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ret = OB_INIT_TWICE;
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LOG_WARN("ObPGMetaCheckpointWriter has already been inited", K(ret));
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} else if (OB_UNLIKELY(!pg_meta.is_valid())) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("invalid arguments", K(ret), K(pg_meta));
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} else {
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pg_meta_ = pg_meta;
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writer_ = &writer;
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is_inited_ = true;
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}
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return ret;
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}
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int ObPGMetaCheckpointWriter::write_checkpoint()
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{
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int ret = OB_SUCCESS;
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if (OB_UNLIKELY(!is_inited_)) {
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ret = OB_NOT_INIT;
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LOG_WARN("ObPGMetaCheckpointWriter has not been inited", K(ret));
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} else if (OB_FAIL(writer_->write_item(&pg_meta_))) {
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LOG_WARN("fail to write pg meta", K(ret));
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}
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return ret;
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}
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void ObPGMetaCheckpointWriter::reset()
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{
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is_inited_ = false;
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writer_ = nullptr;
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}
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