head     1.6;
branch   ;
access   ;
symbols  Version_2_1:1.5 Version_2:1.4 C_Demo_1:1.4;
locks    ; strict;
comment  @ * @;


1.6
date     91.11.08.15.50.45;  author kemnitz;  state Exp;
branches ;
next     1.5;

1.5
date     90.08.17.08.53.26;  author cimarron;  state Exp;
branches ;
next     1.4;

1.4
date     89.09.05.17.07.19;  author mao;  state Version_2;
branches ;
next     1.3;

1.3
date     89.04.12.19.54.41;  author dillon;  state Exp;
branches ;
next     1.2;

1.2
date     89.03.22.17.33.23;  author muir;  state Stab;
branches ;
next     1.1;

1.1
date     89.01.17.05.54.20;  author cimarron;  state Exp;
branches ;
next     ;


desc
@@


1.6
log
@prototype checkin.
@
text
@/*
 * itempos.h --
 *	Standard POSTGRES buffer page long item subposition definitions.
 *
 * Identification:
 *	$Header: RCS/itempos.h,v 1.5 90/08/17 08:53:26 cimarron Exp Locker: glass $
 */

#ifndef	ItemPosIncluded	/* Include this file only once. */
#define ItemPosIncluded	1

#include "tmp/c.h"
#include "storage/buf.h"
#include "storage/itemid.h"

typedef struct ItemSubpositionData {
	Buffer		op_db;
	ItemId		op_lpp;
	char		*op_cp;		/* XXX */
	uint32		op_len;
} ItemSubpositionData;

typedef ItemSubpositionData	*ItemSubposition;

/*
 *	PNOBREAK(OBJP, LEN)
 *	struct	objpos	*OBJP;
 *	unsigned	LEN;
 */
#define PNOBREAK(OBJP, LEN)	((OBJP)->op_len >= LEN)

/*
 *	PSKIP(OBJP, LEN)
 *	struct	objpos	*OBJP;
 *	unsigned	LEN;
 */
#define PSKIP(OBJP, LEN)\
	{ (OBJP)->op_cp += (LEN); (OBJP)->op_len -= (LEN); }

#endif	/* !defined(ItemPosIncluded) */
@


1.5
log
@added pathnames to #include statements
@
text
@d6 1
a6 1
 *	$Header: RCS/itempos.h,v 1.4 89/09/05 17:07:19 mao Version_2 Locker: cimarron $
a38 10

/*
 * ItemPositionIsValid --
 *	True iff disk item identifier is valid.
 */
extern
bool
ItemPositionIsValid ARGS((
	ItemPosition	position
));
@


1.4
log
@Working version of C-only demo
@
text
@d6 1
a6 1
 *	$Header: /usr6/postgres/mao/postgres/src/lib/H/RCS/itempos.h,v 1.3 89/04/12 19:54:41 dillon Exp $
d12 3
a14 6
#ifndef C_H
#include "c.h"
#endif

#include "buf.h"
#include "itemid.h"
@


1.3
log
@c.h
@
text
@d6 1
a6 1
 *	$Header: /usr6/postgres/dillon/ptree/src/lib/H/RCS/itempos.h,v 1.2 89/03/22 17:33:23 muir Stab $
@


1.2
log
@copyright removal
@
text
@d6 1
a6 1
 *	$Header: /usr6/postgres/muir/postgres/src/lib/H/RCS/itempos.h,v 1.1 89/01/17 05:54:20 cimarron Exp $
d12 1
d14 1
@


1.1
log
@Initial revision
@
text
@a0 27

; /*
; * 
; * POSTGRES Data Base Management System
; * 
; * Copyright (c) 1988 Regents of the University of California
; * 
; * Permission to use, copy, modify, and distribute this software and its
; * documentation for educational, research, and non-profit purposes and
; * without fee is hereby granted, provided that the above copyright
; * notice appear in all copies and that both that copyright notice and
; * this permission notice appear in supporting documentation, and that
; * the name of the University of California not be used in advertising
; * or publicity pertaining to distribution of the software without
; * specific, written prior permission.  Permission to incorporate this
; * software into commercial products can be obtained from the Campus
; * Software Office, 295 Evans Hall, University of California, Berkeley,
; * Ca., 94720 provided only that the the requestor give the University
; * of California a free licence to any derived software for educational
; * and research purposes.  The University of California makes no
; * representations about the suitability of this software for any
; * purpose.  It is provided "as is" without express or implied warranty.
; * 
; */



d6 1
a6 1
 *	$Header: itempos.h,v 1.1 88/11/11 16:37:10 postgres Exp $
@