tdbUtil.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 "tdbInt.h"

int tdbGnrtFileID(const char *fname, uint8_t *fileid) {
  struct stat statbuf;

  if (stat(fname, &statbuf) < 0) {
    return -1;
  }

  memset(fileid, 0, TDB_FILE_ID_LEN);

  ((uint64_t *)fileid)[0] = (uint64_t)statbuf.st_ino;
  ((uint64_t *)fileid)[1] = (uint64_t)statbuf.st_dev;
  ((uint64_t *)fileid)[2] = rand();

  return 0;
}