diff options
Diffstat (limited to 'src/backend/access/transam/xid.c')
| -rw-r--r-- | src/backend/access/transam/xid.c | 43 |
1 files changed, 26 insertions, 17 deletions
diff --git a/src/backend/access/transam/xid.c b/src/backend/access/transam/xid.c index df5c59543c7..28171a7f33f 100644 --- a/src/backend/access/transam/xid.c +++ b/src/backend/access/transam/xid.c @@ -1,12 +1,12 @@ /*------------------------------------------------------------------------- * * xid.c - * POSTGRES transaction identifier code. + * POSTGRES transaction identifier type. * * Portions Copyright (c) 1996-2000, PostgreSQL, Inc * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: xid.c,v 1.27 2000/01/26 05:56:04 momjian Exp $ + * $Id: xid.c,v 1.28 2000/06/05 07:28:38 tgl Exp $ * * OLD COMMENTS * XXX WARNING @@ -19,33 +19,42 @@ *------------------------------------------------------------------------- */ - #include "postgres.h" + #include "access/xact.h" +/* + * TransactionId is typedef'd as uint32, so... + */ +#define PG_GETARG_TRANSACTIONID(n) PG_GETARG_UINT32(n) +#define PG_RETURN_TRANSACTIONID(x) PG_RETURN_UINT32(x) + + extern TransactionId NullTransactionId; extern TransactionId DisabledTransactionId; extern TransactionId AmiTransactionId; extern TransactionId FirstTransactionId; /* XXX name for catalogs */ -TransactionId -xidin(char *representation) +Datum +xidin(PG_FUNCTION_ARGS) { - return atol(representation); + char *representation = PG_GETARG_CSTRING(0); + + PG_RETURN_TRANSACTIONID((TransactionId) atol(representation)); } /* XXX name for catalogs */ -char * -xidout(TransactionId transactionId) +Datum +xidout(PG_FUNCTION_ARGS) { + TransactionId transactionId = PG_GETARG_TRANSACTIONID(0); /* maximum 32 bit unsigned integer representation takes 10 chars */ char *representation = palloc(11); - snprintf(representation, 11, "%u", transactionId); - - return representation; + snprintf(representation, 11, "%lu", (unsigned long) transactionId); + PG_RETURN_CSTRING(representation); } /* ---------------------------------------------------------------- @@ -57,13 +66,14 @@ xidout(TransactionId transactionId) * xideq - returns 1, iff xid1 == xid2 * 0 else; */ -bool -xideq(TransactionId xid1, TransactionId xid2) +Datum +xideq(PG_FUNCTION_ARGS) { - return (bool) (xid1 == xid2); -} - + TransactionId xid1 = PG_GETARG_TRANSACTIONID(0); + TransactionId xid2 = PG_GETARG_TRANSACTIONID(1); + PG_RETURN_BOOL(xid1 == xid2); +} /* ---------------------------------------------------------------- * TransactionIdAdd @@ -73,5 +83,4 @@ void TransactionIdAdd(TransactionId *xid, int value) { *xid += value; - return; } |