-/*-
- * Copyright (c) 1990, 1993, 1994
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Mike Olson.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)bt_debug.c 8.5 (Berkeley) 8/17/94";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/db/btree/bt_debug.c,v 1.3 2004/09/10 05:41:41 kuriyama Exp $");
-
-#include <sys/param.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <db.h>
-#include "btree.h"
-
-#ifdef DEBUG
-/*
- * BT_DUMP -- Dump the tree
- *
- * Parameters:
- * dbp: pointer to the DB
- */
-void
-__bt_dump(dbp)
- DB *dbp;
-{
- BTREE *t;
- PAGE *h;
- pgno_t i;
- char *sep;
-
- t = dbp->internal;
- (void)fprintf(stderr, "%s: pgsz %d",
- F_ISSET(t, B_INMEM) ? "memory" : "disk", t->bt_psize);
- if (F_ISSET(t, R_RECNO))
- (void)fprintf(stderr, " keys %u", t->bt_nrecs);
-#undef X
-#define X(flag, name) \
- if (F_ISSET(t, flag)) { \
- (void)fprintf(stderr, "%s%s", sep, name); \
- sep = ", "; \
- }
- if (t->flags != 0) {
- sep = " flags (";
- X(R_FIXLEN, "FIXLEN");
- X(B_INMEM, "INMEM");
- X(B_NODUPS, "NODUPS");
- X(B_RDONLY, "RDONLY");
- X(R_RECNO, "RECNO");
- X(B_METADIRTY,"METADIRTY");
- (void)fprintf(stderr, ")\n");
- }
-#undef X
-
- for (i = P_ROOT; (h = mpool_get(t->bt_mp, i, 0)) != NULL; ++i) {
- __bt_dpage(h);
- (void)mpool_put(t->bt_mp, h, 0);
- }
-}
-
-/*
- * BT_DMPAGE -- Dump the meta page
- *
- * Parameters:
- * h: pointer to the PAGE
- */
-void
-__bt_dmpage(h)
- PAGE *h;
-{
- BTMETA *m;
- char *sep;
-
- m = (BTMETA *)h;
- (void)fprintf(stderr, "magic %x\n", m->magic);
- (void)fprintf(stderr, "version %u\n", m->version);
- (void)fprintf(stderr, "psize %u\n", m->psize);
- (void)fprintf(stderr, "free %u\n", m->free);
- (void)fprintf(stderr, "nrecs %u\n", m->nrecs);
- (void)fprintf(stderr, "flags %u", m->flags);
-#undef X
-#define X(flag, name) \
- if (m->flags & flag) { \
- (void)fprintf(stderr, "%s%s", sep, name); \
- sep = ", "; \
- }
- if (m->flags) {
- sep = " (";
- X(B_NODUPS, "NODUPS");
- X(R_RECNO, "RECNO");
- (void)fprintf(stderr, ")");
- }
-}
-
-/*
- * BT_DNPAGE -- Dump the page
- *
- * Parameters:
- * n: page number to dump.
- */
-void
-__bt_dnpage(dbp, pgno)
- DB *dbp;
- pgno_t pgno;
-{
- BTREE *t;
- PAGE *h;
-
- t = dbp->internal;
- if ((h = mpool_get(t->bt_mp, pgno, 0)) != NULL) {
- __bt_dpage(h);
- (void)mpool_put(t->bt_mp, h, 0);
- }
-}
-
-/*
- * BT_DPAGE -- Dump the page
- *
- * Parameters:
- * h: pointer to the PAGE
- */
-void
-__bt_dpage(h)
- PAGE *h;
-{
- BINTERNAL *bi;
- BLEAF *bl;
- RINTERNAL *ri;
- RLEAF *rl;
- indx_t cur, top;
- char *sep;
-
- (void)fprintf(stderr, " page %d: (", h->pgno);
-#undef X
-#define X(flag, name) \
- if (h->flags & flag) { \
- (void)fprintf(stderr, "%s%s", sep, name); \
- sep = ", "; \
- }
- sep = "";
- X(P_BINTERNAL, "BINTERNAL") /* types */
- X(P_BLEAF, "BLEAF")
- X(P_RINTERNAL, "RINTERNAL") /* types */
- X(P_RLEAF, "RLEAF")
- X(P_OVERFLOW, "OVERFLOW")
- X(P_PRESERVE, "PRESERVE");
- (void)fprintf(stderr, ")\n");
-#undef X
-
- (void)fprintf(stderr, "\tprev %2d next %2d", h->prevpg, h->nextpg);
- if (h->flags & P_OVERFLOW)
- return;
-
- top = NEXTINDEX(h);
- (void)fprintf(stderr, " lower %3d upper %3d nextind %d\n",
- h->lower, h->upper, top);
- for (cur = 0; cur < top; cur++) {
- (void)fprintf(stderr, "\t[%03d] %4d ", cur, h->linp[cur]);
- switch (h->flags & P_TYPE) {
- case P_BINTERNAL:
- bi = GETBINTERNAL(h, cur);
- (void)fprintf(stderr,
- "size %03d pgno %03d", bi->ksize, bi->pgno);
- if (bi->flags & P_BIGKEY)
- (void)fprintf(stderr, " (indirect)");
- else if (bi->ksize)
- (void)fprintf(stderr,
- " {%.*s}", (int)bi->ksize, bi->bytes);
- break;
- case P_RINTERNAL:
- ri = GETRINTERNAL(h, cur);
- (void)fprintf(stderr, "entries %03d pgno %03d",
- ri->nrecs, ri->pgno);
- break;
- case P_BLEAF:
- bl = GETBLEAF(h, cur);
- if (bl->flags & P_BIGKEY)
- (void)fprintf(stderr,
- "big key page %u size %u/",
- *(pgno_t *)bl->bytes,
- *(u_int32_t *)(bl->bytes + sizeof(pgno_t)));
- else if (bl->ksize)
- (void)fprintf(stderr, "%.*s/",
- bl->ksize, bl->bytes);
- if (bl->flags & P_BIGDATA)
- (void)fprintf(stderr,
- "big data page %u size %u",
- *(pgno_t *)(bl->bytes + bl->ksize),
- *(u_int32_t *)(bl->bytes + bl->ksize +
- sizeof(pgno_t)));
- else if (bl->dsize)
- (void)fprintf(stderr, "%.*s",
- (int)bl->dsize, bl->bytes + bl->ksize);
- break;
- case P_RLEAF:
- rl = GETRLEAF(h, cur);
- if (rl->flags & P_BIGDATA)
- (void)fprintf(stderr,
- "big data page %u size %u",
- *(pgno_t *)rl->bytes,
- *(u_int32_t *)(rl->bytes + sizeof(pgno_t)));
- else if (rl->dsize)
- (void)fprintf(stderr,
- "%.*s", (int)rl->dsize, rl->bytes);
- break;
- }
- (void)fprintf(stderr, "\n");
- }
-}
-#endif
-
-#ifdef STATISTICS
-/*
- * BT_STAT -- Gather/print the tree statistics
- *
- * Parameters:
- * dbp: pointer to the DB
- */
-void
-__bt_stat(dbp)
- DB *dbp;
-{
- extern u_long bt_cache_hit, bt_cache_miss, bt_pfxsaved, bt_rootsplit;
- extern u_long bt_sortsplit, bt_split;
- BTREE *t;
- PAGE *h;
- pgno_t i, pcont, pinternal, pleaf;
- u_long ifree, lfree, nkeys;
- int levels;
-
- t = dbp->internal;
- pcont = pinternal = pleaf = 0;
- nkeys = ifree = lfree = 0;
- for (i = P_ROOT; (h = mpool_get(t->bt_mp, i, 0)) != NULL; ++i) {
- switch (h->flags & P_TYPE) {
- case P_BINTERNAL:
- case P_RINTERNAL:
- ++pinternal;
- ifree += h->upper - h->lower;
- break;
- case P_BLEAF:
- case P_RLEAF:
- ++pleaf;
- lfree += h->upper - h->lower;
- nkeys += NEXTINDEX(h);
- break;
- case P_OVERFLOW:
- ++pcont;
- break;
- }
- (void)mpool_put(t->bt_mp, h, 0);
- }
-
- /* Count the levels of the tree. */
- for (i = P_ROOT, levels = 0 ;; ++levels) {
- h = mpool_get(t->bt_mp, i, 0);
- if (h->flags & (P_BLEAF|P_RLEAF)) {
- if (levels == 0)
- levels = 1;
- (void)mpool_put(t->bt_mp, h, 0);
- break;
- }
- i = F_ISSET(t, R_RECNO) ?
- GETRINTERNAL(h, 0)->pgno :
- GETBINTERNAL(h, 0)->pgno;
- (void)mpool_put(t->bt_mp, h, 0);
- }
-
- (void)fprintf(stderr, "%d level%s with %ld keys",
- levels, levels == 1 ? "" : "s", nkeys);
- if (F_ISSET(t, R_RECNO))
- (void)fprintf(stderr, " (%d header count)", t->bt_nrecs);
- (void)fprintf(stderr,
- "\n%u pages (leaf %d, internal %d, overflow %d)\n",
- pinternal + pleaf + pcont, pleaf, pinternal, pcont);
- (void)fprintf(stderr, "%ld cache hits, %ld cache misses\n",
- bt_cache_hit, bt_cache_miss);
- (void)fprintf(stderr, "%lu splits (%lu root splits, %lu sort splits)\n",
- bt_split, bt_rootsplit, bt_sortsplit);
- pleaf *= t->bt_psize - BTDATAOFF;
- if (pleaf)
- (void)fprintf(stderr,
- "%.0f%% leaf fill (%ld bytes used, %ld bytes free)\n",
- ((double)(pleaf - lfree) / pleaf) * 100,
- pleaf - lfree, lfree);
- pinternal *= t->bt_psize - BTDATAOFF;
- if (pinternal)
- (void)fprintf(stderr,
- "%.0f%% internal fill (%ld bytes used, %ld bytes free\n",
- ((double)(pinternal - ifree) / pinternal) * 100,
- pinternal - ifree, ifree);
- if (bt_pfxsaved)
- (void)fprintf(stderr, "prefix checking removed %lu bytes.\n",
- bt_pfxsaved);
-}
-#endif
projects / apple / libc.git / blobdiff