SQLite

Artifact a8477ae61546a9a4c8e06dd31936b06abf18bd086ae6a183ed57f721a3a194b4:

• File src/server.h — part of check-in [5a043aa8dd] at 2017-07-08 20:46:17 on branch server-process-edition — Support read-only MVCC transactions in server-mode. Started using "BEGIN READONLY". (user: dan size: 1376)

/*
** 2017 April 24
**
** The author disclaims copyright to this source code.  In place of
** a legal notice, here is a blessing:
**
**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
*/

#ifdef SQLITE_SERVER_EDITION

#ifndef SQLITE_SERVER_H
#define SQLITE_SERVER_H


typedef struct Server Server;

typedef struct ServerPage ServerPage;
struct ServerPage {
  Pgno pgno;                      /* Page number for this record */
  int nData;                      /* Size of aData[] in bytes */
  u8 *aData;
  ServerPage *pNext;

  int iCommitId;
  ServerPage *pHashNext;
  ServerPage *pHashPrev;
};

int sqlite3ServerConnect(Pager *pPager, Server **ppOut);
void sqlite3ServerDisconnect(Server *p, sqlite3_file *dbfd);

int sqlite3ServerBegin(Server *p, int bReadonly);
int sqlite3ServerPreCommit(Server*, ServerPage*);
int sqlite3ServerEnd(Server *p);

int sqlite3ServerReleaseWriteLocks(Server *p);

int sqlite3ServerLock(Server *p, Pgno pgno, int bWrite, int bBlock);

int sqlite3ServerHasLock(Server *p, Pgno pgno, int bWrite);

void sqlite3ServerReadPage(Server*, Pgno, u8**);
void sqlite3ServerEndReadPage(Server*, Pgno);

#endif /* SQLITE_SERVER_H */
#endif /* SQLITE_SERVER_EDITION */