diff options
Diffstat (limited to 'db2/db/db_conv.c')
| -rw-r--r-- | db2/db/db_conv.c | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/db2/db/db_conv.c b/db2/db/db_conv.c deleted file mode 100644 index 8b5cf5f4a7..0000000000 --- a/db2/db/db_conv.c +++ /dev/null @@ -1,255 +0,0 @@ -/*- - * See the file LICENSE for redistribution information. - * - * Copyright (c) 1996, 1997, 1998 - * Sleepycat Software. All rights reserved. - */ -/* - * Copyright (c) 1990, 1993, 1994, 1995, 1996 - * Keith Bostic. All rights reserved. - */ -/* - * Copyright (c) 1990, 1993, 1994, 1995 - * The Regents of the University of California. All rights reserved. - * - * 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. - */ - -#include "config.h" - -#ifndef lint -static const char sccsid[] = "@(#)db_conv.c 10.13 (Sleepycat) 4/26/98"; -#endif /* not lint */ - -#ifndef NO_SYSTEM_INCLUDES -#include <sys/types.h> - -#include <errno.h> -#include <string.h> -#endif - -#include "db_int.h" -#include "db_page.h" -#include "db_swap.h" -#include "db_am.h" - -static int __db_convert __P((db_pgno_t, void *, size_t, int)); - -/* - * __db_pgin -- - * - * PUBLIC: int __db_pgin __P((db_pgno_t, size_t, void *)); - */ -int -__db_pgin(pg, pagesize, pp) - db_pgno_t pg; - size_t pagesize; - void *pp; -{ - return (__db_convert(pg, pp, pagesize, 1)); -} - -/* - * __db_pgout -- - * - * PUBLIC: int __db_pgout __P((db_pgno_t, size_t, void *)); - */ -int -__db_pgout(pg, pagesize, pp) - db_pgno_t pg; - size_t pagesize; - void *pp; -{ - return (__db_convert(pg, pp, pagesize, 0)); -} - -/* - * __db_convert -- - * Actually convert a page. - */ -static int -__db_convert(pg, pp, pagesize, pgin) - db_pgno_t pg; - void *pp; - size_t pagesize; - int pgin; -{ - BINTERNAL *bi; - BKEYDATA *bk; - BOVERFLOW *bo; - PAGE *h; - RINTERNAL *ri; - db_indx_t i, len, tmp; - u_int8_t *p, *end; - - COMPQUIET(pg, 0); - - h = pp; - if (pgin) { - M_32_SWAP(h->lsn.file); - M_32_SWAP(h->lsn.offset); - M_32_SWAP(h->pgno); - M_32_SWAP(h->prev_pgno); - M_32_SWAP(h->next_pgno); - M_16_SWAP(h->entries); - M_16_SWAP(h->hf_offset); - } - - switch (h->type) { - case P_HASH: - for (i = 0; i < NUM_ENT(h); i++) { - if (pgin) - M_16_SWAP(h->inp[i]); - - switch (HPAGE_TYPE(h, i)) { - case H_KEYDATA: - break; - case H_DUPLICATE: - len = LEN_HKEYDATA(h, pagesize, i); - p = HKEYDATA_DATA(P_ENTRY(h, i)); - for (end = p + len; p < end;) { - if (pgin) { - P_16_SWAP(p); - memcpy(&tmp, - p, sizeof(db_indx_t)); - p += sizeof(db_indx_t); - } else { - memcpy(&tmp, - p, sizeof(db_indx_t)); - SWAP16(p); - } - p += tmp; - SWAP16(p); - } - break; - case H_OFFDUP: - p = HOFFPAGE_PGNO(P_ENTRY(h, i)); - SWAP32(p); /* pgno */ - break; - case H_OFFPAGE: - p = HOFFPAGE_PGNO(P_ENTRY(h, i)); - SWAP32(p); /* pgno */ - SWAP32(p); /* tlen */ - break; - } - - } - - /* - * The offsets in the inp array are used to determine - * the size of entries on a page; therefore they - * cannot be converted until we've done all the - * entries. - */ - if (!pgin) - for (i = 0; i < NUM_ENT(h); i++) - M_16_SWAP(h->inp[i]); - break; - case P_LBTREE: - case P_LRECNO: - case P_DUPLICATE: - for (i = 0; i < NUM_ENT(h); i++) { - if (pgin) - M_16_SWAP(h->inp[i]); - - bk = GET_BKEYDATA(h, i); - switch (B_TYPE(bk->type)) { - case B_KEYDATA: - M_16_SWAP(bk->len); - break; - case B_DUPLICATE: - case B_OVERFLOW: - bo = (BOVERFLOW *)bk; - M_32_SWAP(bo->pgno); - M_32_SWAP(bo->tlen); - break; - } - - if (!pgin) - M_16_SWAP(h->inp[i]); - } - break; - case P_IBTREE: - for (i = 0; i < NUM_ENT(h); i++) { - if (pgin) - M_16_SWAP(h->inp[i]); - - bi = GET_BINTERNAL(h, i); - M_16_SWAP(bi->len); - M_32_SWAP(bi->pgno); - M_32_SWAP(bi->nrecs); - - switch (B_TYPE(bi->type)) { - case B_KEYDATA: - break; - case B_DUPLICATE: - case B_OVERFLOW: - bo = (BOVERFLOW *)bi->data; - M_32_SWAP(bo->pgno); - M_32_SWAP(bo->tlen); - break; - } - - if (!pgin) - M_16_SWAP(h->inp[i]); - } - break; - case P_IRECNO: - for (i = 0; i < NUM_ENT(h); i++) { - if (pgin) - M_16_SWAP(h->inp[i]); - - ri = GET_RINTERNAL(h, i); - M_32_SWAP(ri->pgno); - M_32_SWAP(ri->nrecs); - - if (!pgin) - M_16_SWAP(h->inp[i]); - } - break; - case P_OVERFLOW: - case P_INVALID: - /* Nothing to do. */ - break; - default: - return (EINVAL); - } - - if (!pgin) { - /* Swap the header information. */ - M_32_SWAP(h->lsn.file); - M_32_SWAP(h->lsn.offset); - M_32_SWAP(h->pgno); - M_32_SWAP(h->prev_pgno); - M_32_SWAP(h->next_pgno); - M_16_SWAP(h->entries); - M_16_SWAP(h->hf_offset); - } - return (0); -} |