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pg_filedump.h
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/*
* pg_filedump.h - PostgreSQL file dump utility for dumping and
* formatting heap (data), index and control files.
*
* Copyright (c) 2002-2010 Red Hat, Inc.
* Copyright (c) 2011-2012, PostgreSQL Global Development Group
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Original Author: Patrick Macdonald <[email protected]>
*/
#define FD_VERSION "9.3.0" /* version ID of pg_filedump */
#define FD_PG_VERSION "PostgreSQL 9.3.x" /* PG version it works with */
#include "postgres.h"
#include <time.h>
#include <ctype.h>
#include "access/gin_private.h"
#include "access/gist.h"
#include "access/hash.h"
#include "access/htup.h"
#include "access/htup_details.h"
#include "access/itup.h"
#include "access/nbtree.h"
#include "access/spgist_private.h"
#include "catalog/pg_control.h"
#include "storage/bufpage.h"
// Options for Block formatting operations
static unsigned int blockOptions = 0;
typedef enum
{
BLOCK_ABSOLUTE = 0x00000001, // -a: Absolute (vs Relative) addressing
BLOCK_BINARY = 0x00000002, // -b: Binary dump of block
BLOCK_FORMAT = 0x00000004, // -f: Formatted dump of blocks / control file
BLOCK_FORCED = 0x00000008, // -S: Block size forced
BLOCK_NO_INTR = 0x00000010, // -d: Dump straight blocks
BLOCK_RANGE = 0x00000020 // -R: Specific block range to dump
}
blockSwitches;
static int blockStart = -1; // -R [start]: Block range start
static int blockEnd = -1; // -R [end]: Block range end
// Options for Item formatting operations
static unsigned int itemOptions = 0;
typedef enum
{
ITEM_DETAIL = 0x00000001, // -i: Display interpreted items
ITEM_HEAP = 0x00000002, // -y: Blocks contain HeapTuple items
ITEM_INDEX = 0x00000004, // -x: Blocks contain IndexTuple items
ITEM_SPG_INNER = 0x00000008, // Blocks contain SpGistInnerTuple items
ITEM_SPG_LEAF = 0x00000010 // Blocks contain SpGistLeafTuple items
}
itemSwitches;
// Options for Control File formatting operations
static unsigned int controlOptions = 0;
typedef enum
{
CONTROL_DUMP = 0x00000001, // -c: Dump control file
CONTROL_FORMAT = BLOCK_FORMAT, // -f: Formatted dump of control file
CONTROL_FORCED = BLOCK_FORCED // -S: Block size forced
}
controlSwitches;
// Possible value types for the Special Section
typedef enum
{
SPEC_SECT_NONE, // No special section on block
SPEC_SECT_SEQUENCE, // Sequence info in special section
SPEC_SECT_INDEX_BTREE, // BTree index info in special section
SPEC_SECT_INDEX_HASH, // Hash index info in special section
SPEC_SECT_INDEX_GIST, // GIST index info in special section
SPEC_SECT_INDEX_GIN, // GIN index info in special section
SPEC_SECT_INDEX_SPGIST, // SP-GIST index info in special section
SPEC_SECT_ERROR_UNKNOWN, // Unknown error
SPEC_SECT_ERROR_BOUNDARY // Boundary error
}
specialSectionTypes;
static unsigned int specialType = SPEC_SECT_NONE;
// Possible return codes from option validation routine.
// pg_filedump doesn't do much with them now but maybe in
// the future...
typedef enum
{
OPT_RC_VALID, // All options are valid
OPT_RC_INVALID, // Improper option string
OPT_RC_FILE, // File problems
OPT_RC_DUPLICATE, // Duplicate option encountered
OPT_RC_COPYRIGHT // Copyright should be displayed
}
optionReturnCodes;
// Simple macro to check for duplicate options and then set
// an option flag for later consumption
#define SET_OPTION(_x,_y,_z) if (_x & _y) \
{ \
rc = OPT_RC_DUPLICATE; \
duplicateSwitch = _z; \
} \
else \
_x |= _y;
#define SEQUENCE_MAGIC 0x1717 // PostgreSQL defined magic number
#define EOF_ENCOUNTERED (-1) // Indicator for partial read
#define BYTES_PER_LINE 16 // Format the binary 16 bytes per line