48 lines
1.5 KiB
C
48 lines
1.5 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 __INDEX_FST_COUNTING_WRITER_H__
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#define __INDEX_FST_COUNTING_WRITER_H__
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typedef uint32_t CheckSummer;
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typedef struct FstCountingWriter {
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void* wrt; // wrap any writer that counts and checksum bytes written
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uint64_t count;
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CheckSummer summer;
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} FstCountingWriter;
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uint64_t fstCountingWriterWrite(FstCountingWriter *write, uint8_t *buf, uint32_t bufLen);
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int FstCountingWriterFlush(FstCountingWriter *write);
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FstCountingWriter *fstCountingWriterCreate(void *wtr);
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void fstCountingWriterDestroy(FstCountingWriter *w);
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void fstCountingWriterPackUintIn(FstCountingWriter *writer, uint64_t n, uint8_t nBytes);
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uint8_t fstCountingWriterPackUint(FstCountingWriter *writer, uint64_t n);
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#define FST_WRITER_COUNT(writer) (writer->count)
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#define FST_WRITER_INTER_WRITER(writer) (writer->wtr)
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#define FST_WRITE_CHECK_SUMMER(writer) (writer->summer)
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#endif
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