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/*-------------------------------------------------------------------------
*
* snapmgr.h
* POSTGRES snapshot manager
*
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/snapmgr.h,v 1.1 2008/03/26 18:48:59 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef SNAPMGR_H
#define SNAPMGR_H
#include "utils/snapshot.h"
extern PGDLLIMPORT Snapshot SerializableSnapshot;
extern PGDLLIMPORT Snapshot LatestSnapshot;
extern PGDLLIMPORT Snapshot ActiveSnapshot;
extern TransactionId TransactionXmin;
extern TransactionId RecentXmin;
extern TransactionId RecentGlobalXmin;
extern Snapshot GetTransactionSnapshot(void);
extern Snapshot GetLatestSnapshot(void);
extern Snapshot CopySnapshot(Snapshot snapshot);
extern void FreeSnapshot(Snapshot snapshot);
extern void FreeXactSnapshot(void);
#endif /* SNAPMGR_H */
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