head 1.10; access; symbols release_4_2:1.10 aix_ok:1.10 Version_2_1:1.7 Version_2:1.6 C_Demo_1:1.4; locks; strict; comment @ * @; 1.10 date 93.09.27.04.55.21; author aoki; state Exp; branches; next 1.9; 1.9 date 91.07.22.14.23.57; author mer; state Exp; branches; next 1.8; 1.8 date 91.05.01.02.50.17; author cimarron; state Exp; branches; next 1.7; 1.7 date 90.08.17.08.53.10; author cimarron; state Exp; branches; next 1.6; 1.6 date 89.09.25.11.27.17; author cimarron; state Version_2; branches; next 1.5; 1.5 date 89.09.21.19.12.09; author hirohama; state Exp; branches; next 1.4; 1.4 date 89.09.05.17.03.48; author mao; state C_Demo_1; branches; next 1.3; 1.3 date 89.04.12.19.52.49; author dillon; state Exp; branches; next 1.2; 1.2 date 89.03.22.17.32.18; author muir; state Stab; branches; next 1.1; 1.1 date 89.01.17.05.53.47; author cimarron; state Exp; branches; next ; desc @@ 1.10 log @changed Assert(false) -> Assert(0) (aix compiler doesn't like !enum) @ text @/* ---------------------------------------------------------------- * FILE * block.h * * DESCRIPTION * POSTGRES disk block definitions. * * NOTES * * IDENTIFICATION * $Header: /data/01/postgres/src/backend/storage/RCS/block.h,v 1.9 1991/07/22 14:23:57 mer Exp $ * ---------------------------------------------------------------- */ #ifndef BlockIncluded /* Include this file only once */ #define BlockIncluded 1 #define BLOCK_H "$Header: /data/01/postgres/src/backend/storage/RCS/block.h,v 1.9 1991/07/22 14:23:57 mer Exp $" #include "tmp/c.h" /* XXX this should be called BlockIndex -hirohama */ typedef uint32 BlockNumber; /* page number */ typedef uint16 BlockSize; #define InvalidBlockNumber (-1) typedef struct BlockIdData { int16 data[2]; } BlockIdData; typedef BlockIdData *BlockId; /* block identifier */ /* ---------------- * support macros * ---------------- */ /* * BlockSizeIsValid -- * True iff size is valid. * should check that this is a power of 2 * * XXX currently any block size is valid */ #define BlockSizeIsValid(blockSize) 1 /* * BlockNumberIsValid -- * True iff blockNumber is valid. */ #define BlockNumberIsValid(blockNumber) \ ((bool) \ (((blockNumber) >= 0) && ((int32) (blockNumber) != InvalidBlockNumber))) /* * BlockIdIsValid -- * True iff the block identifier is valid. */ #define BlockIdIsValid(blockId) \ ((bool) \ (PointerIsValid(blockId) && ((blockId)->data[0] >= 0))) /* * BlockIdSet -- * Sets a block identifier to the specified value. */ #define BlockIdSet(blockId, blockNumber) \ Assert(PointerIsValid(blockId)); \ (blockId)->data[0] = (blockNumber) >> 16; \ (blockId)->data[1] = (blockNumber) & 0xffff /* * BlockIdCopy -- * Copy a block identifier. */ #define BlockIdCopy(toBlockId, fromBlockId) \ Assert(PointerIsValid(toBlockId)); \ Assert(PointerIsValid(fromBlockId)); \ (toBlockId)->data[0] = (fromBlockId)->data[0]; \ (toBlockId)->data[1] = (fromBlockId)->data[1] /* * BlockIdEquals -- * Check for block number equality. */ #define BlockIdEquals(blockId1, blockId2) \ ((blockId1)->data[0] == (blockId2)->data[0] && \ (blockId1)->data[1] == (blockId2)->data[1]) /* * BlockIdGetBlockNumber -- * Retrieve the block number from a block identifier. */ #define BlockIdGetBlockNumber(blockId) \ (AssertMacro(BlockIdIsValid(blockId)) ? \ (BlockNumber) \ (((blockId)->data[0] << 16) + ((uint16) (blockId)->data[1])) : \ (BlockNumber) InvalidBlockNumber) #endif /* !defined(BlockIncluded) */ @ 1.9 log @couple of macros for new lock manager use of tids @ text @d8 2 d11 1 a11 1 * $Header: lib/H/storage/RCS/block.h,v 1.8 91/05/01 02:50:17 cimarron Exp Locker: mer $ d18 1 a18 1 #define BLOCK_H "$Header: lib/H/storage/RCS/block.h,v 1.8 91/05/01 02:50:17 cimarron Exp Locker: mer $" d46 1 a46 2 #define BlockSizeIsValid(blockSize) \ (true) @ 1.8 log @round II of converting simple functions to macros + code cleaning in general @ text @d9 1 a9 1 * $Header$ d16 1 a16 1 #define BLOCK_H "$Header: RCS/block.h,v 1.7 90/08/17 08:53:10 cimarron Exp Locker: cimarron $" d71 18 @ 1.7 log @added pathnames to #include statements @ text @d1 5 a5 2 /* * block.h -- d7 4 d16 1 a16 4 /* * Identification: */ #define BLOCK_H "$Header: RCS/block.h,v 1.6 89/09/25 11:27:17 cimarron Version_2 Locker: cimarron $" d21 1 d33 4 d40 3 d44 2 a45 5 extern bool BlockSizeIsValid ARGS(( BlockSize size )); d51 3 a53 5 extern bool BlockNumberIsValid ARGS(( BlockNumber blockNumber )); d59 3 a61 5 extern bool BlockIdIsValid ARGS(( BlockId pageId )); d67 4 a70 6 extern void BlockIdSet ARGS(( BlockId blockId, BlockNumber blockNumber )); d76 5 a80 5 extern BlockNumber BlockIdGetBlockNumber ARGS(( PageId pageId )); @ 1.6 log @moved dynamic symbol stuff to syms.h @ text @d12 1 a12 1 #define BLOCK_H "$Header: RCS/block.h,v 1.5 89/09/21 19:12:09 hirohama Exp $" d14 1 a14 3 #ifndef C_H #include "c.h" #endif @ 1.5 log @added ...SYMBOLS declarations miscellaneous cleanup @ text @d12 1 a12 1 #define BLOCK_H "$Header: RCS/block.h,v 1.4 89/09/05 17:03:48 mao C_Demo_1 Locker: hirohama $" a79 7 #define BLOCK_SYMBOLS \ SymbolDecl(BlockSizeIsValid, "_BlockSizeIsValid"), \ SymbolDecl(BlockNumberIsValid, "_BlockNumberIsValid"), \ SymbolDecl(BlockIdIsValid, "_BlockIdIsValid"), \ SymbolDecl(BlockIdSet, "_BlockIdSet"), \ SymbolDecl(BlockIdGetBlockNumber, "_BlockIdGetBlockNumber") @ 1.4 log @Working version of C-only demo @ text @a3 3 * * Identification: * $Header: /usr6/postgres/mao/postgres/src/lib/H/RCS/block.h,v 1.3 89/04/12 19:52:49 dillon Exp $ d6 1 a6 1 #ifndef BlockIncluded /* Include this file only once */ d9 5 d31 10 d42 1 a42 1 * True iff the block number is valid. d80 7 @ 1.3 log @c.h @ text @d6 1 a6 1 * $Header: /usr6/postgres/dillon/ptree/src/lib/H/RCS/block.h,v 1.2 89/03/22 17:32:18 muir Stab $ @ 1.2 log @copyright removal @ text @d6 1 a6 1 * $Header: /usr6/postgres/muir/postgres/src/lib/H/RCS/block.h,v 1.1 89/01/17 05:53:47 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: block.h,v 1.1 88/11/11 16:36:54 postgres Exp $ @