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/*
* multixact.h
*
* PostgreSQL multi-transaction-log manager
*
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/access/multixact.h,v 1.1 2005/04/28 21:47:17 tgl Exp $
*/
#ifndef MULTIXACT_H
#define MULTIXACT_H
#define InvalidMultiXactId ((MultiXactId) 0)
#define FirstMultiXactId ((MultiXactId) 1)
#define MultiXactIdIsValid(multi) ((multi) != InvalidMultiXactId)
extern void MultiXactIdWait(MultiXactId multi);
extern MultiXactId MultiXactIdExpand(MultiXactId multi, bool isMulti,
TransactionId xid);
extern bool MultiXactIdIsRunning(MultiXactId multi);
extern void MultiXactIdSetOldestMember(void);
extern void AtEOXact_MultiXact(void);
extern int MultiXactShmemSize(void);
extern void MultiXactShmemInit(void);
extern void BootStrapMultiXact(void);
extern void StartupMultiXact(void);
extern void ShutdownMultiXact(void);
extern MultiXactId MultiXactGetCheckptMulti(bool is_shutdown);
extern void CheckPointMultiXact(void);
extern void MultiXactSetNextMXact(MultiXactId nextMulti);
extern void MultiXactAdvanceNextMXact(MultiXactId minMulti);
#endif /* MULTIXACT_H */
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