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33 * @(#)rec_utils.c 8.6 (Berkeley) 7/16/94
34 * $DragonFly: src/lib/libcr/db/recno/Attic/rec_utils.c,v 1.2 2003/06/17 04:26:42 dillon Exp $
37 #include <sys/param.h>
52 * e: key/data pair to be returned
54 * key: user's key structure
55 * data: user's data structure
58 * RET_SUCCESS, RET_ERROR.
61 __rec_ret(t, e, nrec, key, data)
73 /* We have to copy the key, it's not on the page. */
74 if (sizeof(recno_t) > t->bt_rkey.size) {
75 p = (void *)(t->bt_rkey.data == NULL ?
76 malloc(sizeof(recno_t)) :
77 realloc(t->bt_rkey.data, sizeof(recno_t)));
81 t->bt_rkey.size = sizeof(recno_t);
83 memmove(t->bt_rkey.data, &nrec, sizeof(recno_t));
84 key->size = sizeof(recno_t);
85 key->data = t->bt_rkey.data;
92 * We must copy big keys/data to make them contigous. Otherwise,
93 * leave the page pinned and don't copy unless the user specified
96 rl = GETRLEAF(e->page, e->index);
97 if (rl->flags & P_BIGDATA) {
98 if (__ovfl_get(t, rl->bytes,
99 &data->size, &t->bt_rdata.data, &t->bt_rdata.size))
101 data->data = t->bt_rdata.data;
102 } else if (F_ISSET(t, B_DB_LOCK)) {
103 /* Use +1 in case the first record retrieved is 0 length. */
104 if (rl->dsize + 1 > t->bt_rdata.size) {
105 p = (void *)(t->bt_rdata.data == NULL ?
106 malloc(rl->dsize + 1) :
107 realloc(t->bt_rdata.data, rl->dsize + 1));
110 t->bt_rdata.data = p;
111 t->bt_rdata.size = rl->dsize + 1;
113 memmove(t->bt_rdata.data, rl->bytes, rl->dsize);
114 data->size = rl->dsize;
115 data->data = t->bt_rdata.data;
117 data->size = rl->dsize;
118 data->data = rl->bytes;
120 return (RET_SUCCESS);