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deps/oblib/src/lib/compress/ob_compressor_pool.h vendored Normal file
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/**
* Copyright (c) 2021 OceanBase
* OceanBase CE is licensed under Mulan PubL v2.
* You can use this software according to the terms and conditions of the Mulan PubL v2.
* You may obtain a copy of Mulan PubL v2 at:
* http://license.coscl.org.cn/MulanPubL-2.0
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PubL v2 for more details.
*/
#ifndef OB_COMPRESSOR_POOL_H_
#define OB_COMPRESSOR_POOL_H_
#include "lib/compress/ob_compressor.h"
#include "lib/compress/ob_compress_util.h"
#include "lib/compress/ob_stream_compressor.h"
#include "none/ob_none_compressor.h"
#include "lz4/ob_lz4_compressor.h"
#include "snappy/ob_snappy_compressor.h"
#include "zlib/ob_zlib_compressor.h"
#include "lz4/ob_lz4_stream_compressor.h"
#include "zstd/ob_zstd_compressor.h"
#include "zstd/ob_zstd_stream_compressor.h"
#include "zstd_1_3_8/ob_zstd_compressor_1_3_8.h"
#include "zstd_1_3_8/ob_zstd_stream_compressor_1_3_8.h"
namespace oceanbase {
namespace common {
class ObCompressorPool {
public:
static ObCompressorPool& get_instance();
int get_compressor(const char* compressor_name, ObCompressor*& compressor);
int get_compressor(const ObCompressorType& compressor_type, ObCompressor*& compressor);
int get_compressor_type(const char* compressor_name, ObCompressorType& compressor_type) const;
int get_stream_compressor(const char* compressor_name, ObStreamCompressor*& stream_compressor);
int get_stream_compressor(const ObCompressorType& compressor_type, ObStreamCompressor*& stream_compressor);
static bool need_common_compress(const ObCompressorType& compressor_type)
{
return (need_compress(compressor_type) && (!need_stream_compress(compressor_type)));
}
static bool need_stream_compress(const ObCompressorType& compressor_type)
{
return (STREAM_LZ4_COMPRESSOR == compressor_type || STREAM_ZSTD_COMPRESSOR == compressor_type ||
STREAM_ZSTD_1_3_8_COMPRESSOR == compressor_type);
}
static bool need_compress(const ObCompressorType& compressor_type)
{
return ((INVALID_COMPRESSOR != compressor_type) && (NONE_COMPRESSOR != compressor_type));
}
int get_max_overflow_size(const int64_t src_data_size, int64_t& max_overflow_size);
private:
ObCompressorPool();
virtual ~ObCompressorPool()
{}
ObNoneCompressor none_compressor;
ObLZ4Compressor lz4_compressor;
ObLZ4Compressor191 lz4_compressor_1_9_1;
ObSnappyCompressor snappy_compressor;
ObZlibCompressor zlib_compressor;
zstd::ObZstdCompressor zstd_compressor;
zstd_1_3_8::ObZstdCompressor_1_3_8 zstd_compressor_1_3_8;
// stream compressor
ObLZ4StreamCompressor lz4_stream_compressor;
zstd::ObZstdStreamCompressor zstd_stream_compressor;
zstd_1_3_8::ObZstdStreamCompressor_1_3_8 zstd_stream_compressor_1_3_8;
};
} /* namespace common */
} /* namespace oceanbase */
#endif /* OB_COMPRESSOR_POOL_H_ */