/*

 * 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 _TD_UTIL_TREALLOC_H_

#define _TD_UTIL_TREALLOC_H_

#include "os.h"

#ifdef __cplusplus

extern "C" {

#endif

static FORCE_INLINE int32_t tRealloc(uint8_t **ppBuf, int64_t size) {

  int32_t  code = 0;

  int64_t  bsize = 0;

  uint8_t *pBuf = NULL;

  if (*ppBuf) {

    pBuf = (*ppBuf) - sizeof(int64_t);

    bsize = *(int64_t *)pBuf;

  }

  if (bsize >= size) goto _exit;

  if (bsize == 0) bsize = 64;

  while (bsize < size) {

    bsize *= 2;

  }

  pBuf = (uint8_t *)taosMemoryRealloc(pBuf, bsize + sizeof(int64_t));

  if (pBuf == NULL) {

    code = terrno;

    goto _exit;

  }

  *(int64_t *)pBuf = bsize;

  *ppBuf = pBuf + sizeof(int64_t);

_exit:

  return code;

}

Unexecuted instantiation: parInsertUtil.c:tRealloc

Unexecuted instantiation: tdataformat.c:tRealloc

Unexecuted instantiation: tmsg.c:tRealloc

#define tFree(BUF)                                        \

  do {                                                    \

    if (BUF) {                                            \

      taosMemoryFree((uint8_t *)(BUF) - sizeof(int64_t)); \

      (BUF) = NULL;                                       \

    }                                                     \

  } while (0)

#ifdef __cplusplus

}

#endif

#endif /*_TD_UTIL_TREALLOC_H_*/