60 lines
1.9 KiB
C
60 lines
1.9 KiB
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/>.
|
|
*/
|
|
|
|
#ifndef TDENGINE_HISTOGRAM_H
|
|
#define TDENGINE_HISTOGRAM_H
|
|
|
|
#include "functionResInfoInt.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define USE_ARRAYLIST
|
|
|
|
#define MAX_HISTOGRAM_BIN 500
|
|
|
|
typedef struct SHeapEntry {
|
|
void* pData;
|
|
double val;
|
|
} SHeapEntry;
|
|
|
|
struct SHistogramInfo;
|
|
struct SHistBin;
|
|
|
|
int32_t tHistogramCreate(int32_t numOfEntries, struct SHistogramInfo** pHisto);
|
|
struct SHistogramInfo* tHistogramCreateFrom(void* pBuf, int32_t numOfBins);
|
|
|
|
int32_t tHistogramAdd(struct SHistogramInfo** pHisto, double val);
|
|
int32_t tHistogramSum(struct SHistogramInfo* pHisto, double v, int64_t *res);
|
|
|
|
int32_t tHistogramUniform(struct SHistogramInfo* pHisto, double* ratio, int32_t num, double** pVal);
|
|
int32_t tHistogramMerge(struct SHistogramInfo* pHisto1, struct SHistogramInfo* pHisto2, int32_t numOfEntries,
|
|
struct SHistogramInfo** pResHistogram);
|
|
void tHistogramDestroy(struct SHistogramInfo** pHisto);
|
|
|
|
void tHistogramPrint(struct SHistogramInfo* pHisto);
|
|
|
|
int32_t histoBinarySearch(struct SHistBin* pEntry, int32_t len, double val);
|
|
|
|
SHeapEntry* tHeapCreate(int32_t numOfEntries);
|
|
void tHeapSort(SHeapEntry* pEntry, int32_t len);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // TDENGINE_HISTOGRAM_H
|