diff options
Diffstat (limited to 'db2/hash/hash_dup.c')
-rw-r--r-- | db2/hash/hash_dup.c | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/db2/hash/hash_dup.c b/db2/hash/hash_dup.c index c9590fa49d..71bd1c5eb0 100644 --- a/db2/hash/hash_dup.c +++ b/db2/hash/hash_dup.c @@ -42,7 +42,7 @@ #include "config.h" #ifndef lint -static const char sccsid[] = "@(#)hash_dup.c 10.6 (Sleepycat) 9/3/97"; +static const char sccsid[] = "@(#)hash_dup.c 10.7 (Sleepycat) 9/15/97"; #endif /* not lint */ /* @@ -99,9 +99,9 @@ __ham_add_dup(hashp, hcp, nval, flags) int flags; { DBT pval, tmp_val; - HKEYDATA *hk; u_int32_t del_len, new_size; int ret; + u_int8_t *hk; if (flags == DB_CURRENT && hcp->dpgno == PGNO_INVALID) del_len = hcp->dup_len; @@ -128,8 +128,8 @@ __ham_add_dup(hashp, hcp, nval, flags) * the addition of the new item will make the set large, or * if there isn't enough room on this page to add the next item. */ - if (hk->type != H_OFFDUP && - (hk->type == H_OFFPAGE || ISBIG(hashp, new_size) || + if (HPAGE_PTYPE(hk) != H_OFFDUP && + (HPAGE_PTYPE(hk) == H_OFFPAGE || ISBIG(hashp, new_size) || DUP_SIZE(nval->size) - del_len > P_FREESPACE(hcp->pagep))) { if ((ret = __ham_dup_convert(hashp, hcp)) != 0) @@ -139,16 +139,17 @@ __ham_add_dup(hashp, hcp, nval, flags) } /* There are two separate cases here: on page and off page. */ - if (hk->type != H_OFFDUP) { - if (hk->type != H_DUPLICATE) { - hk->type = H_DUPLICATE; + if (HPAGE_PTYPE(hk) != H_OFFDUP) { + if (HPAGE_PTYPE(hk) != H_DUPLICATE) { + HPAGE_PTYPE(hk) = H_DUPLICATE; pval.flags = 0; - pval.data = hk->data; + pval.data = HKEYDATA_DATA(hk); pval.size = LEN_HDATA(hcp->pagep, hashp->hdr->pagesize, hcp->bndx); - if ((ret = __ham_make_dup(&pval, &tmp_val, &hcp->big_data, - &hcp->big_datalen)) != 0 || - (ret = __ham_replpair(hashp, hcp, &tmp_val, 1)) != 0) + if ((ret = + __ham_make_dup(&pval, &tmp_val, &hcp->big_data, + &hcp->big_datalen)) != 0 || (ret = + __ham_replpair(hashp, hcp, &tmp_val, 1)) != 0) return (ret); } @@ -187,8 +188,7 @@ __ham_add_dup(hashp, hcp, nval, flags) /* If we get here, then we're on duplicate pages. */ if (hcp->dpgno == PGNO_INVALID) { - memcpy(&hcp->dpgno, - (u_int8_t *)hk + SSZ(HOFFDUP, pgno), sizeof(db_pgno_t)); + memcpy(&hcp->dpgno, HOFFDUP_PGNO(hk), sizeof(db_pgno_t)); hcp->dndx = 0; } @@ -259,14 +259,13 @@ __ham_dup_convert(hashp, hcp) * Now put the duplicates onto the new page. */ dbt.flags = 0; - switch (((HKEYDATA *)H_PAIRDATA(hcp->pagep, hcp->bndx))->type) { + switch (HPAGE_PTYPE(H_PAIRDATA(hcp->pagep, hcp->bndx))) { case H_KEYDATA: /* Simple case, one key on page; move it to dup page. */ dndx = 0; dbt.size = LEN_HDATA(hcp->pagep, hashp->hdr->pagesize, hcp->bndx); - dbt.data = - ((HKEYDATA *)H_PAIRDATA(hcp->pagep, hcp->bndx))->data; + dbt.data = HKEYDATA_DATA(H_PAIRDATA(hcp->pagep, hcp->bndx)); ret = __db_pitem(hashp->dbp, hcp->dpagep, (u_int32_t)dndx, BKEYDATA_SIZE(dbt.size), NULL, &dbt); if (ret == 0) @@ -289,7 +288,7 @@ __ham_dup_convert(hashp, hcp) __ham_dirty_page(hashp, hcp->dpagep); break; case H_DUPLICATE: - p = ((HKEYDATA *)H_PAIRDATA(hcp->pagep, hcp->bndx))->data; + p = HKEYDATA_DATA(H_PAIRDATA(hcp->pagep, hcp->bndx)); pend = p + LEN_HDATA(hcp->pagep, hashp->hdr->pagesize, hcp->bndx); @@ -366,24 +365,23 @@ __ham_check_move(hashp, hcp, add_len) { DBT k, d; DB_LSN new_lsn; - HKEYDATA *hk; PAGE *next_pagep; db_pgno_t next_pgno; int rectype, ret; u_int32_t new_datalen, old_len; + u_int8_t *hk; /* * Check if we can do whatever we need to on this page. If not, * then we'll have to move the current element to a new page. */ - hk = H_PAIRDATA(hcp->pagep, hcp->bndx); /* * If the item is already off page duplicates or an offpage item, * then we know we can do whatever we need to do in-place */ - if (hk->type == H_OFFDUP || hk->type == H_OFFPAGE) + if (HPAGE_PTYPE(hk) == H_OFFDUP || HPAGE_PTYPE(hk) == H_OFFPAGE) return (0); old_len = @@ -443,22 +441,25 @@ __ham_check_move(hashp, hcp, add_len) rectype = PUTPAIR; k.flags = 0; d.flags = 0; - if (H_PAIRKEY(hcp->pagep, hcp->bndx)->type == H_OFFPAGE) { + if (HPAGE_PTYPE( + H_PAIRKEY(hcp->pagep, hcp->bndx)) == H_OFFPAGE) { rectype |= PAIR_KEYMASK; k.data = H_PAIRKEY(hcp->pagep, hcp->bndx); k.size = HOFFPAGE_SIZE; } else { - k.data = H_PAIRKEY(hcp->pagep, hcp->bndx)->data; + k.data = + HKEYDATA_DATA(H_PAIRKEY(hcp->pagep, hcp->bndx)); k.size = LEN_HKEY(hcp->pagep, hashp->hdr->pagesize, hcp->bndx); } - if (hk->type == H_OFFPAGE) { + if (HPAGE_PTYPE(hk) == H_OFFPAGE) { rectype |= PAIR_DATAMASK; d.data = H_PAIRDATA(hcp->pagep, hcp->bndx); d.size = HOFFPAGE_SIZE; } else { - d.data = H_PAIRDATA(hcp->pagep, hcp->bndx)->data; + d.data = + HKEYDATA_DATA(H_PAIRDATA(hcp->pagep, hcp->bndx)); d.size = LEN_HDATA(hcp->pagep, hashp->hdr->pagesize, hcp->bndx); } |