qUtil.h

/*
 * 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_QUERYUTIL_H
#define TDENGINE_QUERYUTIL_H

#define SET_RES_WINDOW_KEY(_k, _ori, _len, _uid)     \
  do {                                               \
    assert(sizeof(_uid) == sizeof(uint64_t));        \
    *(uint64_t *)(_k) = (_uid);                      \
    memcpy((_k) + sizeof(uint64_t), (_ori), (_len)); \
  } while (0)

#define GET_RES_WINDOW_KEY_LEN(_l) ((_l) + sizeof(uint64_t))

int32_t getOutputInterResultBufSize(SQuery* pQuery);

void clearResultRow(SQueryRuntimeEnv* pRuntimeEnv, SResultRow* pRow);
void copyResultRow(SQueryRuntimeEnv* pRuntimeEnv, SResultRow* dst, const SResultRow* src);
SResultRowCellInfo* getResultCell(SQueryRuntimeEnv* pRuntimeEnv, const SResultRow* pRow, int32_t index);

int32_t initWindowResInfo(SWindowResInfo* pWindowResInfo, int32_t size, int32_t threshold, int16_t type);

void    cleanupTimeWindowInfo(SWindowResInfo* pWindowResInfo);
void    resetTimeWindowInfo(SQueryRuntimeEnv* pRuntimeEnv, SWindowResInfo* pWindowResInfo);
void    clearFirstNTimeWindow(SQueryRuntimeEnv *pRuntimeEnv, int32_t num);

void    clearClosedTimeWindow(SQueryRuntimeEnv* pRuntimeEnv);
int32_t numOfClosedTimeWindow(SWindowResInfo* pWindowResInfo);
void    closeTimeWindow(SWindowResInfo* pWindowResInfo, int32_t slot);
void    closeAllTimeWindow(SWindowResInfo* pWindowResInfo);
void    removeRedundantWindow(SWindowResInfo *pWindowResInfo, TSKEY lastKey, int32_t order);

static FORCE_INLINE SResultRow *getWindowResult(SWindowResInfo *pWindowResInfo, int32_t slot) {
  assert(pWindowResInfo != NULL && slot >= 0 && slot < pWindowResInfo->size);
  return pWindowResInfo->pResult[slot];
}

#define curTimeWindowIndex(_winres)        ((_winres)->curIndex)
#define GET_ROW_PARAM_FOR_MULTIOUTPUT(_q, tbq, sq) (((tbq) && (!sq))? (_q)->pSelectExpr[1].base.arg->argValue.i64:1)

bool isWindowResClosed(SWindowResInfo *pWindowResInfo, int32_t slot);

int32_t createQueryResultInfo(SQuery *pQuery, SResultRow *pResultRow);

static FORCE_INLINE char *getPosInResultPage(SQueryRuntimeEnv *pRuntimeEnv, int32_t columnIndex, SResultRow *pResult,
    tFilePage* page) {
  assert(pResult != NULL && pRuntimeEnv != NULL);

  SQuery *pQuery = pRuntimeEnv->pQuery;

  int32_t realRowId = (int32_t)(pResult->rowId * GET_ROW_PARAM_FOR_MULTIOUTPUT(pQuery, pRuntimeEnv->topBotQuery, pRuntimeEnv->stableQuery));
  return ((char *)page->data) + pRuntimeEnv->offset[columnIndex] * pRuntimeEnv->numOfRowsPerPage +
      pQuery->pSelectExpr[columnIndex].bytes * realRowId;
}

bool isNull_filter(SColumnFilterElem *pFilter, char* minval, char* maxval);
bool notNull_filter(SColumnFilterElem *pFilter, char* minval, char* maxval);

__filter_func_t *getRangeFilterFuncArray(int32_t type);
__filter_func_t *getValueFilterFuncArray(int32_t type);

size_t getWindowResultSize(SQueryRuntimeEnv* pRuntimeEnv);

SResultRowPool* initResultRowPool(size_t size);
SResultRow* getNewResultRow(SResultRowPool* p);
int64_t getResultRowPoolMemSize(SResultRowPool* p);
void* destroyResultRowPool(SResultRowPool* p);
int32_t getNumOfAllocatedResultRows(SResultRowPool* p);
int32_t getNumOfUsedResultRows(SResultRowPool* p);


#endif  // TDENGINE_QUERYUTIL_H