42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TD_UTIL_SCALABLEBF_H_
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#define _TD_UTIL_SCALABLEBF_H_
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#include "tbloomfilter.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct SScalableBf {
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SArray *bfArray; // array of bloom filters
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uint32_t growth;
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uint64_t numBits;
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} SScalableBf;
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SScalableBf *tScalableBfInit(uint64_t expectedEntries, double errorRate);
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int32_t tScalableBfPut(SScalableBf *pSBf, const void *keyBuf, uint32_t len);
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int32_t tScalableBfNoContain(const SScalableBf *pSBf, const void *keyBuf, uint32_t len);
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void tScalableBfDestroy(SScalableBf *pSBf);
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int32_t tScalableBfEncode(const SScalableBf *pSBf, SEncoder *pEncoder);
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SScalableBf *tScalableBfDecode(SDecoder *pDecoder);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_UTIL_SCALABLEBF_H_*/ |