2 * Copyright (c) 1990, 1993, 1994
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33 #if defined(LIBC_SCCS) && !defined(lint)
34 static char sccsid[] = "@(#)bt_get.c 8.6 (Berkeley) 7/20/94";
35 #endif /* LIBC_SCCS and not lint */
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
39 #include <sys/types.h>
49 * __BT_GET -- Get a record from the btree.
52 * dbp: pointer to access method
54 * data: data to return
55 * flag: currently unused
58 * RET_ERROR, RET_SUCCESS and RET_SPECIAL if the key not found.
61 __bt_get(const DB *dbp, const DBT *key, DBT *data, u_int flags)
69 /* Toss any page pinned across calls. */
70 if (t->bt_pinned != NULL) {
71 mpool_put(t->bt_mp, t->bt_pinned, 0);
75 /* Get currently doesn't take any flags. */
81 if ((e = __bt_search(t, key, &exact)) == NULL)
84 mpool_put(t->bt_mp, e->page, 0);
88 status = __bt_ret(t, e, NULL, NULL, data, &t->bt_rdata, 0);
91 * If the user is doing concurrent access, we copied the
92 * key/data, toss the page.
94 if (F_ISSET(t, B_DB_LOCK))
95 mpool_put(t->bt_mp, e->page, 0);
97 t->bt_pinned = e->page;