mirror of
https://github.com/postgres/postgres.git
synced 2025-12-19 17:02:53 +03:00
30 lines
840 B
C
30 lines
840 B
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* pg_lsn.h
|
|
* Declarations for operations on log sequence numbers (LSNs) of
|
|
* PostgreSQL.
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* src/include/utils/pg_lsn.h
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
#ifndef PG_LSN_H
|
|
#define PG_LSN_H
|
|
|
|
#include "access/xlogdefs.h"
|
|
#include "fmgr.h"
|
|
|
|
#define DatumGetLSN(X) ((XLogRecPtr) DatumGetInt64(X))
|
|
#define LSNGetDatum(X) (Int64GetDatum((int64) (X)))
|
|
|
|
#define PG_GETARG_LSN(n) DatumGetLSN(PG_GETARG_DATUM(n))
|
|
#define PG_RETURN_LSN(x) return LSNGetDatum(x)
|
|
|
|
extern XLogRecPtr pg_lsn_in_internal(const char *str, bool *have_error);
|
|
|
|
#endif /* PG_LSN_H */
|