119 lines
4.2 KiB
C
119 lines
4.2 KiB
C
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/*
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* pg_filedump.h - PostgreSQL file dump utility for dumping and
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* formatting heap (data), index and control files.
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* Version 9.0.0 for PostgreSQL 9.0
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*
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* Copyright (c) 2002-2010 Red Hat, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Patrick Macdonald <patrickm@redhat.com>
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*
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* Component of: PostgreSQL - Red Hat Edition - Utilities / Tools
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*
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*/
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#include <stdio.h>
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#include <time.h>
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#include <ctype.h>
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#include "postgres.h"
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#include "storage/bufpage.h"
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#include "access/hash.h"
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#include "access/gin.h"
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#include "access/gist.h"
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#include "access/nbtree.h"
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#include "access/itup.h"
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#include "access/htup.h"
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#include "catalog/pg_control.h"
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// Options for Block formatting operations
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static unsigned int blockOptions = 0;
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typedef enum
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{
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BLOCK_ABSOLUTE = 0x00000001, // -a: Absolute (vs Relative) addressing
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BLOCK_BINARY = 0x00000002, // -b: Binary dump of block
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BLOCK_FORMAT = 0x00000004, // -f: Formatted dump of blocks / control file
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BLOCK_FORCED = 0x00000008, // -S: Block size forced
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BLOCK_NO_INTR = 0x00000010, // -d: Dump straight blocks
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BLOCK_RANGE = 0x00000020 // -R: Specific block range to dump
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}
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blockSwitches;
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static int blockStart = -1; // -R [start]: Block range start
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static int blockEnd = -1; // -R [end]: Block range end
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// Options for Item formatting operations
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static unsigned int itemOptions = 0;
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typedef enum
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{
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ITEM_DETAIL = 0x00000001, // -i: Display interpreted items
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ITEM_HEAP = 0x00000002, // -y: Blocks contain heap items
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ITEM_INDEX = 0x00000004 // -x: Blocks contain index items
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}
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itemSwitches;
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// Options for Control File formatting operations
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static unsigned int controlOptions = 0;
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typedef enum
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{
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CONTROL_DUMP = 0x00000001, // -c: Dump control file
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CONTROL_FORMAT = BLOCK_FORMAT, // -f: Formatted dump of control file
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CONTROL_FORCED = BLOCK_FORCED // -S: Block size forced
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}
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controlSwitches;
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// Possible value types for the Special Section
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typedef enum
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{
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SPEC_SECT_NONE, // No special section on block
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SPEC_SECT_SEQUENCE, // Sequence info in special section
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SPEC_SECT_INDEX_BTREE, // BTree index info in special section
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SPEC_SECT_INDEX_HASH, // Hash index info in special section
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SPEC_SECT_INDEX_GIST, // GIST index info in special section
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SPEC_SECT_INDEX_GIN, // GIN index info in special section
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SPEC_SECT_ERROR_UNKNOWN, // Unknown error
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SPEC_SECT_ERROR_BOUNDARY // Boundary error
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}
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specialSectionTypes;
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static unsigned int specialType = SPEC_SECT_NONE;
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// Possible return codes from option validation routine.
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// pg_filedump doesn't do much with them now but maybe in
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// the future...
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typedef enum
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{
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OPT_RC_VALID, // All options are valid
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OPT_RC_INVALID, // Improper option string
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OPT_RC_FILE, // File problems
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OPT_RC_DUPLICATE, // Duplicate option encountered
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OPT_RC_COPYRIGHT // Copyright should be displayed
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}
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optionReturnCodes;
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// Simple macro to check for duplicate options and then set
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// an option flag for later consumption
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#define SET_OPTION(_x,_y,_z) if (_x & _y) \
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{ \
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rc = OPT_RC_DUPLICATE; \
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duplicateSwitch = _z; \
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} \
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else \
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_x |= _y;
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#define SEQUENCE_MAGIC 0x1717 // PostgreSQL defined magic number
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#define EOF_ENCOUNTERED (-1) // Indicator for partial read
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#define BYTES_PER_LINE 16 // Format the binary 16 bytes per line
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