/*
 * 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 _TDB_PAGER_H_
#define _TDB_PAGER_H_

#ifdef __cplusplus
extern "C" {
#endif

int  tdbPagerOpen(SPCache *pCache, const char *fileName, SPager **ppPager);
int  tdbPagerClose(SPager *pPager);
int  tdbPagerOpenDB(SPager *pPager, SPgno *ppgno, bool toCreate);
int  tdbPagerWrite(SPager *pPager, SPage *pPage);
int  tdbPagerBegin(SPager *pPager);
int  tdbPagerCommit(SPager *pPager);
int  tdbPagerGetPageSize(SPager *pPager);
int  tdbPagerFetchPage(SPager *pPager, SPgno pgno, SPage **ppPage, int (*initPage)(SPage *, void *), void *arg);
int  tdbPagerNewPage(SPager *pPager, SPgno *ppgno, SPage **ppPage, int (*initPage)(SPage *, void *), void *arg);
void tdbPagerReturnPage(SPager *pPager, SPage *pPage);

#ifdef __cplusplus
}
#endif

#endif /*_TDB_PAGER_H_*/