head 1.10; branch ; access ; symbols Version_2_1:1.7 Version_2:1.6 C_Demo_1:1.4; locks ; strict; comment @ * @; 1.10 date 91.05.07.13.58.13; author kemnitz; state Exp; branches ; next 1.9; 1.9 date 91.05.01.02.50.23; author cimarron; state Exp; branches ; next 1.8; 1.8 date 91.04.28.09.15.22; author cimarron; state Exp; branches ; next 1.7; 1.7 date 90.08.17.08.53.24; author cimarron; state Exp; branches ; next 1.6; 1.6 date 89.09.25.11.25.48; author cimarron; state Version_2; branches ; next 1.5; 1.5 date 89.09.21.19.12.39; author hirohama; state Exp; branches ; next 1.4; 1.4 date 89.09.05.17.07.16; author mao; state C_Demo_1; branches ; next 1.3; 1.3 date 89.04.12.19.54.39; author dillon; state Exp; branches ; next 1.2; 1.2 date 89.03.22.17.33.21; author muir; state Stab; branches ; next 1.1; 1.1 date 89.01.17.05.54.19; author cimarron; state Exp; branches ; next ; desc @@ 1.10 log @got rid of superfluous includes. @ text @/* ---------------------------------------------------------------- * FILE * itemid.h * * DESCRIPTION * Standard POSTGRES buffer page item identifier definitions. * * IDENTIFICATION * $Header: RCS/itemid.h,v 1.9 91/05/01 02:50:23 cimarron Exp Locker: kemnitz $ * ---------------------------------------------------------------- */ #ifndef ItemIdIncluded /* Include this file only once */ #define ItemIdIncluded 1 #define ITEMID_H "$Header: RCS/itemid.h,v 1.9 91/05/01 02:50:23 cimarron Exp Locker: kemnitz $" typedef uint16 ItemOffset; typedef uint16 ItemLength; typedef bits16 ItemIdFlags; typedef struct ItemIdData { /* line pointers */ unsigned lp_off:13, /* offset to find tup */ /* can be reduced by 2 if necc. */ lp_flags:6, /* flags on tuple */ lp_len:13; /* length of tuple */ } ItemIdData; typedef struct ItemIdData *ItemId; #ifndef LP_USED #define LP_USED 0x01 /* this line pointer is being used */ #define LP_IVALID 0x02 /* this tuple is known to be insert valid */ #define LP_DOCNT 0x04 /* this tuple continues on another page */ #define LP_CTUP 0x08 /* this is a continuation tuple */ #define LP_LOCK 0x10 /* this is a lock */ #define LP_ISINDEX 0x20 /* this is an internal index tuple */ #endif /* ---------------- * support macros * ---------------- */ /* * ItemIdGetLength */ #define ItemIdGetLength(itemId) \ ((itemId)->lp_len) /* * ItemIdGetOffset */ #define ItemIdGetOffset(itemId) \ ((itemId)->lp_off) /* * ItemIdGetFlags */ #define ItemIdGetFlags(itemId) \ ((itemId)->lp_flags) /* * ItemIdIsValid -- * True iff disk item identifier is valid. */ #define ItemIdIsValid(itemId) PointerIsValid(itemId) /* * ItemIdIsUsed -- * True iff disk item identifier is in use. * * Note: * Assumes disk item identifier is valid. */ #define ItemIdIsUsed(itemId) \ (AssertMacro(ItemIdIsValid(itemId)) ? \ (bool) (((itemId)->lp_flags & LP_USED) != 0) : false) /* * ItemIdIsContinuation -- * True iff disk item identifier is a continuation. * * Note: * Assumes disk item identifier is valid. */ #define ItemIdIsContinuation(itemId) \ (AssertMacro(ItemIdIsValid(itemId)) ? \ ((bool) (((itemId)->lp_flags & LP_CTUP) != 0)) : false) /* * ItemIdIsContinuing -- * True iff disk item identifier continues. * * Note: * Assumes disk item identifier is valid. */ #define ItemIdIsContinuing(itemId) \ (AssertMacro(ItemIdIsValid(itemId)) ? \ ((bool) (((itemId)->lp_flags & LP_DOCNT) != 0)) : false) /* * ItemIdIsLock -- * True iff disk item identifier is a lock. * * Note: * Assumes disk item identifier is valid. */ #define ItemIdIsLock(itemId) \ (AssertMacro(ItemIdIsValid(itemId)) ? \ ((bool) (((itemId)->lp_flags & LP_LOCK) != 0)) : false) /* * ItemIdIsInternal -- * True iff disk item identifier is an internal index tuple. * * Note: * Assumes disk item identifier is valid. */ #define ItemIdIsInternal(itemId) \ (AssertMacro(ItemIdIsValid(itemId)) ? \ ((bool) (((itemId)->lp_flags & LP_ISINDEX) != 0)) : false) #endif /* !defined(ItemIdIncluded) */ @ 1.9 log @round II of converting simple functions to macros + code cleaning in general @ text @d9 1 a9 1 * $Header$ d16 1 a16 3 #define ITEMID_H "$Header: RCS/itemid.h,v 1.8 91/04/28 09:15:22 cimarron Exp Locker: cimarron $" #include "tmp/c.h" @ 1.8 log @Converted IsValid code into macros and added an improved NodeIsType scheme @ text @d1 5 a5 2 /* * itemid.h -- d7 4 d16 1 a16 4 /* * Identification: */ #define ITEMID_H "$Header: RCS/itemid.h,v 1.7 90/08/17 08:53:24 cimarron Exp Locker: cimarron $" d43 5 a47 1 /* a49 1 a55 1 a61 1 a70 5 /* ---------------------------------------------------------------- * entern declarations * ---------------------------------------------------------------- */ d78 3 a80 5 extern bool ItemIdIsUsed ARGS(( ItemId itemId; )); a81 1 #if 0 d83 2 a84 2 * ItemIdIsInsertValid -- * True iff disk item identifier is inserted validly. d89 3 a91 6 extern bool ItemIdIsInsertValid ARGS(( ItemId itemId; )); #endif d100 3 a102 5 extern bool ItemIdIsContinuing ARGS(( ItemId itemId; )); a104 13 * ItemIdIsContinuation -- * True iff disk item identifier is a continuation. * * Note: * Assumes disk item identifier is valid. */ extern bool ItemIdIsContinuation ARGS(( ItemId itemId; )); /* d111 3 a113 5 extern bool ItemIdIsLock ARGS(( ItemId itemId; )); d122 4 a125 5 extern bool ItemIdIsInternal ARGS(( ItemId itemId; )); @ 1.7 log @added pathnames to #include statements @ text @d12 1 a12 1 #define ITEMID_H "$Header: RCS/itemid.h,v 1.6 89/09/25 11:25:48 cimarron Version_2 Locker: cimarron $" d39 1 a39 1 /* ---------------------------------------------------------------- a40 1 * ---------------------------------------------------------------- d46 1 a46 1 /* ---------------------------------------------------------------- a47 1 * ---------------------------------------------------------------- d53 2 a54 3 /* ---------------------------------------------------------------- * ItemIdGetLength * ---------------------------------------------------------------- d60 6 a71 10 * ItemIdIsValid -- * True iff disk item identifier is valid. */ extern bool ItemIdIsValid ARGS(( ItemId itemId; )); /* d84 1 d97 1 @ 1.6 log @moved dynamic symbol stuff to syms.h @ text @d12 1 a12 1 #define ITEMID_H "$Header: RCS/itemid.h,v 1.5 89/09/21 19:12:39 hirohama Exp $" d14 1 a14 3 #ifndef C_H #include "c.h" #endif @ 1.5 log @added ...SYMBOLS declarations miscellaneous cleanup @ text @d12 1 a12 1 #define ITEMID_H "$Header: RCS/itemid.h,v 1.4 89/09/05 17:07:16 mao C_Demo_1 Locker: hirohama $" a156 8 #define ITEMID_SYMBOLS \ SymbolDecl(ItemIdIsValid, "_ItemIdIsValid"), \ SymbolDecl(ItemIdIsUsed, "_ItemIdIsUsed"), \ SymbolDecl(ItemIdIsContinuing, "_ItemIdIsContinuing"), \ SymbolDecl(ItemIdIsContinuation, "_ItemIdIsContinuation"), \ SymbolDecl(ItemIdIsLock, "_ItemIdIsLock"), \ SymbolDecl(ItemIdIsInternal, "_ItemIdIsInternal") @ 1.4 log @Working version of C-only demo @ text @a3 3 * * Identification: * $Header: /usr6/postgres/mao/postgres/src/lib/H/RCS/itemid.h,v 1.3 89/04/12 19:54:39 dillon Exp $ d6 1 a6 1 #ifndef ItemIdIncluded /* Include this file only once. */ d9 5 d157 8 @ 1.3 log @c.h @ text @d6 1 a6 1 * $Header: /usr6/postgres/dillon/ptree/src/lib/H/RCS/itemid.h,v 1.2 89/03/22 17:33:21 muir Stab $ @ 1.2 log @copyright removal @ text @d6 1 a6 1 * $Header: /usr6/postgres/muir/postgres/src/lib/H/RCS/itemid.h,v 1.1 89/01/17 05:54:19 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: itemid.h,v 1.1 88/11/11 16:37:10 postgres Exp $ @