util/X86MAC64/include/postgresql/server/utils/pg_lsn.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * pg_lsn.h
   4  *              Declarations for operations on log sequence numbers (LSNs) of
   5  *              PostgreSQL.
   6  *
   7  *
   8  * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
   9  * Portions Copyright (c) 1994, Regents of the University of California
  10  *
  11  * src/include/utils/pg_lsn.h
  12  *
  13  *-------------------------------------------------------------------------
  14  */
  15 #ifndef PG_LSN_H
  16 #define PG_LSN_H
  17
  18 #include "fmgr.h"
  19 #include "access/xlogdefs.h"
  20
  21 extern Datum pg_lsn_in(PG_FUNCTION_ARGS);
  22 extern Datum pg_lsn_out(PG_FUNCTION_ARGS);
  23 extern Datum pg_lsn_recv(PG_FUNCTION_ARGS);
  24 extern Datum pg_lsn_send(PG_FUNCTION_ARGS);
  25
  26 extern Datum pg_lsn_eq(PG_FUNCTION_ARGS);
  27 extern Datum pg_lsn_ne(PG_FUNCTION_ARGS);
  28 extern Datum pg_lsn_lt(PG_FUNCTION_ARGS);
  29 extern Datum pg_lsn_gt(PG_FUNCTION_ARGS);
  30 extern Datum pg_lsn_le(PG_FUNCTION_ARGS);
  31 extern Datum pg_lsn_ge(PG_FUNCTION_ARGS);
  32 extern Datum pg_lsn_cmp(PG_FUNCTION_ARGS);
  33 extern Datum pg_lsn_hash(PG_FUNCTION_ARGS);
  34
  35 extern Datum pg_lsn_mi(PG_FUNCTION_ARGS);
  36
  37 #define DatumGetLSN(X) ((XLogRecPtr) DatumGetInt64(X))
  38 #define LSNGetDatum(X) (Int64GetDatum((int64) (X)))
  39
  40 #define PG_GETARG_LSN(n)         DatumGetLSN(PG_GETARG_DATUM(n))
  41 #define PG_RETURN_LSN(x)         return LSNGetDatum(x)
  42
  43 #endif   /* PG_LSN_H */