2 * Copyright (c) 1990, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #if defined(LIBC_SCCS) && !defined(lint)
31 static char sccsid[] = "@(#)rec_close.c 8.6 (Berkeley) 8/18/94";
32 #endif /* LIBC_SCCS and not lint */
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include "namespace.h"
37 #include <sys/types.h>
45 #include "un-namespace.h"
51 * __REC_CLOSE -- Close a recno tree.
54 * dbp: pointer to access method
57 * RET_ERROR, RET_SUCCESS
67 /* Toss any page pinned across calls. */
68 if (t->bt_pinned != NULL) {
69 mpool_put(t->bt_mp, t->bt_pinned, 0);
73 if (__rec_sync(dbp, 0) == RET_ERROR)
76 /* Committed to closing. */
78 if (F_ISSET(t, R_MEMMAPPED) && munmap(t->bt_smap, t->bt_msize))
81 if (!F_ISSET(t, R_INMEM)) {
82 if (F_ISSET(t, R_CLOSEFP)) {
83 if (fclose(t->bt_rfp))
86 if (_close(t->bt_rfd))
91 if (__bt_close(dbp) == RET_ERROR)
98 * __REC_SYNC -- sync the recno tree to disk.
101 * dbp: pointer to access method
104 * RET_SUCCESS, RET_ERROR.
107 __rec_sync(const DB *dbp, u_int flags)
113 recno_t scursor, trec;
118 /* Toss any page pinned across calls. */
119 if (t->bt_pinned != NULL) {
120 mpool_put(t->bt_mp, t->bt_pinned, 0);
124 if (flags == R_RECNOSYNC)
125 return (__bt_sync(dbp, 0));
127 if (F_ISSET(t, R_RDONLY | R_INMEM) || !F_ISSET(t, R_MODIFIED))
128 return (RET_SUCCESS);
130 /* Read any remaining records into the tree. */
131 if (!F_ISSET(t, R_EOF) && t->bt_irec(t, MAX_REC_NUMBER) == RET_ERROR)
134 /* Rewind the file descriptor. */
135 if (lseek(t->bt_rfd, (off_t)0, SEEK_SET) != 0)
138 /* Save the cursor. */
139 scursor = t->bt_cursor.rcursor;
141 key.size = sizeof(recno_t);
144 if (F_ISSET(t, R_FIXLEN)) {
146 * We assume that fixed length records are all fixed length.
147 * Any that aren't are either EINVAL'd or corrected by the
150 status = (dbp->seq)(dbp, &key, &data, R_FIRST);
151 while (status == RET_SUCCESS) {
152 if (_write(t->bt_rfd, data.data, data.size) !=
155 status = (dbp->seq)(dbp, &key, &data, R_NEXT);
158 iov[1].iov_base = &t->bt_bval;
161 status = (dbp->seq)(dbp, &key, &data, R_FIRST);
162 while (status == RET_SUCCESS) {
163 iov[0].iov_base = data.data;
164 iov[0].iov_len = data.size;
165 if (_writev(t->bt_rfd, iov, 2) != (ssize_t)(data.size + 1))
167 status = (dbp->seq)(dbp, &key, &data, R_NEXT);
171 /* Restore the cursor. */
172 t->bt_cursor.rcursor = scursor;
174 if (status == RET_ERROR)
176 if ((off = lseek(t->bt_rfd, (off_t)0, SEEK_CUR)) == -1)
178 if (ftruncate(t->bt_rfd, off))
180 F_CLR(t, R_MODIFIED);
181 return (RET_SUCCESS);