path: root/db2/db/db_pr.c

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 1996, 1997
 *	Sleepycat Software.  All rights reserved.
 */

#include "config.h"

#ifndef lint
static const char sccsid[] = "@(#)db_pr.c	10.19 (Sleepycat) 11/2/97";
#endif /* not lint */

#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>

#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#endif

#include "db_int.h"
#include "db_page.h"
#include "btree.h"
#include "hash.h"
#include "db_am.h"

static void __db_proff __P((void *));
static void __db_psize __P((DB_MPOOLFILE *));

/*
 * __db_loadme --
 *	Force loading of this file.
 *
 * PUBLIC: void __db_loadme __P((void));
 */
void
__db_loadme()
{
	getpid();
}

static FILE *set_fp;

/*
 * 64K is the maximum page size, so by default we check for offsets
 * larger than that, and, where possible, we refine the test.
 */
#define	PSIZE_BOUNDARY	(64 * 1024 + 1)
static size_t set_psize = PSIZE_BOUNDARY;

/*
 * __db_prinit --
 *	Initialize tree printing routines.
 *
 * PUBLIC: FILE *__db_prinit __P((FILE *));
 */
FILE *
__db_prinit(fp)
	FILE *fp;
{
	if (set_fp == NULL)
		set_fp = fp == NULL ? stdout : fp;
	return (set_fp);
}

/*
 * __db_dump --
 *	Dump the tree to a file.
 *
 * PUBLIC: int __db_dump __P((DB *, char *, int));
 */
int
__db_dump(dbp, name, all)
	DB *dbp;
	char *name;
	int all;
{
	FILE *fp, *save_fp;

	save_fp = NULL;				/* XXX: Shut the compiler up. */

	if (set_psize == PSIZE_BOUNDARY)
		__db_psize(dbp->mpf);

	if (name != NULL) {
		if ((fp = fopen(name, "w")) == NULL)
			return (errno);
		save_fp = set_fp;
		set_fp = fp;
	} else
		fp = __db_prinit(NULL);

	(void)__db_prdb(dbp);
	if (dbp->type == DB_HASH)
		(void)__db_prhash(dbp);
	else
		(void)__db_prbtree(dbp);
	fprintf(fp, "%s\n", DB_LINE);
	__db_prtree(dbp->mpf, all);

	if (name != NULL) {