提交 726006d1 编写于 作者: H Hongze Cheng

more code

上级 f6555efd
...@@ -49,6 +49,8 @@ target_sources( ...@@ -49,6 +49,8 @@ target_sources(
"src/tsdb/tsdbSnapshot.c" "src/tsdb/tsdbSnapshot.c"
"src/tsdb/tsdbCacheRead.c" "src/tsdb/tsdbCacheRead.c"
"src/tsdb/tsdbRetention.c" "src/tsdb/tsdbRetention.c"
"src/tsdb/tsdbDiskData.c"
"src/tsdb/tsdbCompress.c"
# tq # tq
"src/tq/tq.c" "src/tq/tq.c"
......
/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tsdb.h"
// Integer =====================================================
typedef struct {
int8_t rawCopy;
int64_t prevVal;
int32_t nVal;
int32_t nBuf;
uint8_t *pBuf;
} SIntCompressor;
#define I64_SAFE_ADD(a, b) (((a) >= 0 && (b) <= INT64_MAX - (b)) || ((a) < 0 && (b) >= INT64_MIN - (a)))
#define SIMPLE8B_MAX ((uint64_t)1152921504606846974LL)
static int32_t tsdbCmprI64(SIntCompressor *pCompressor, int64_t val) {
int32_t code = 0;
// raw copy
if (pCompressor->rawCopy) {
memcpy(pCompressor->pBuf + pCompressor->nBuf, &val, sizeof(val));
pCompressor->nBuf += sizeof(val);
pCompressor->nVal++;
goto _exit;
}
if (!I64_SAFE_ADD(val, pCompressor->prevVal)) {
pCompressor->rawCopy = 1;
// TODO: decompress and copy
pCompressor->nVal++;
goto _exit;
}
int64_t diff = val - pCompressor->prevVal;
uint8_t zigzag = ZIGZAGE(int64_t, diff);
if (zigzag >= SIMPLE8B_MAX) {
pCompressor->rawCopy = 1;
// TODO: decompress and copy
pCompressor->nVal++;
goto _exit;
}
_exit:
return code;
}
// Timestamp =====================================================
// Float =====================================================
\ No newline at end of file
/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tsdb.h"
typedef struct SDiskColBuilder SDiskColBuilder;
struct SDiskColBuilder {
uint8_t flags;
uint8_t *pBitMap;
int32_t *aOffset;
int32_t nData;
uint8_t *pData;
};
int32_t tDiskColAddVal(SDiskColBuilder *pBuilder, SColVal *pColVal) {
int32_t code = 0;
// TODO
return code;
}
// ================================================================
typedef struct SDiskDataBuilder SDiskDataBuilder;
struct SDiskDataBuilder {
SDiskDataHdr hdr;
SArray *aBlockCol; // SArray<SBlockCol>
};
int32_t tDiskDataBuilderCreate(SDiskDataBuilder **ppBuilder) {
int32_t code = 0;
// TODO
return code;
}
void tDiskDataBuilderDestroy(SDiskDataBuilder *pBuilder) {
// TODO
}
void tDiskDataBuilderInit(SDiskDataBuilder *pBuilder, int64_t suid, int64_t uid, STSchema *pTSchema, int8_t cmprAlg) {
pBuilder->hdr = (SDiskDataHdr){.delimiter = TSDB_FILE_DLMT, //
.fmtVer = 0,
.suid = suid,
.uid = uid,
.cmprAlg = cmprAlg};
}
void tDiskDataBuilderReset(SDiskDataBuilder *pBuilder) {
// TODO
}
int32_t tDiskDataBuilderAddRow(SDiskDataBuilder *pBuilder, TSDBROW *pRow, STSchema *pTSchema, int64_t uid) {
int32_t code = 0;
// uid (todo)
// version (todo)
// TSKEY (todo)
SRowIter iter = {0};
tRowIterInit(&iter, pRow, pTSchema);
for (int32_t iDiskCol = 0; iDiskCol < 0; iDiskCol++) {
}
return code;
}
int32_t tDiskDataBuilderGet(SDiskDataBuilder *pBuilder, uint8_t **ppData) {
int32_t code = 0;
// TODO
return code;
}
\ No newline at end of file
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