49 lines
2.1 KiB
C++
49 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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#include "ob_log_compress.h"
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#include "lib/compress/ob_compressor_pool.h"
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#include "ob_log_entry.h"
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using namespace oceanbase::common;
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namespace oceanbase {
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namespace clog {
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int uncompress(const char* in_buf, int64_t in_size, char*& out_buf, int64_t out_buf_size, int64_t& uncompress_len,
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int64_t& consume_buf_len)
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{
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int ret = OB_SUCCESS;
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ObCompressedLogEntry comp_entry;
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const ObCompressedLogEntryHeader& header = comp_entry.get_header();
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common::ObCompressorType compress_type = INVALID_COMPRESSOR;
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common::ObCompressor* compressor = NULL;
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if (OB_FAIL(comp_entry.deserialize(in_buf, in_size, consume_buf_len))) {
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CLOG_LOG(WARN, "failed to deserialize ObCompressedLogEntry", K(ret));
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} else if (OB_FAIL(header.get_compressor_type(compress_type))) {
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CLOG_LOG(WARN, "failed to get compressor type", K(comp_entry), K(ret));
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} else if (OB_FAIL(common::ObCompressorPool::get_instance().get_compressor(compress_type, compressor))) {
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CLOG_LOG(WARN, "get_compressor failed", K(compress_type), K(ret));
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} else if (OB_ISNULL(compressor)) {
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ret = OB_ERR_UNEXPECTED;
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CLOG_LOG(WARN, "got compressor is NULL", K(ret));
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} else if (OB_FAIL(compressor->decompress(
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comp_entry.get_buf(), header.get_compressed_data_len(), out_buf, out_buf_size, uncompress_len))) {
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} else if (uncompress_len != header.get_orig_data_len()) {
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ret = OB_ERR_UNEXPECTED;
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CLOG_LOG(WARN, "uncompress len is not expected", K(uncompress_len), K(header), K(ret));
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} else { /*do nothing*/
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}
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return ret;
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}
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} // end of namespace clog
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} // end of namespace oceanbase
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