2 * Copyright (c) 1990, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer.
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13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
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18 * may be used to endorse or promote products derived from this software
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33 * @(#)rec_close.c 8.6 (Berkeley) 8/18/94
34 * $FreeBSD: src/lib/libc/db/recno/rec_close.c,v 1.4 2000/01/27 23:06:11 jasone Exp $
35 * $DragonFly: src/lib/libc/db/recno/rec_close.c,v 1.2 2003/06/17 04:26:42 dillon Exp $
38 #include <sys/types.h>
51 * __REC_CLOSE -- Close a recno tree.
54 * dbp: pointer to access method
57 * RET_ERROR, RET_SUCCESS
68 /* Toss any page pinned across calls. */
69 if (t->bt_pinned != NULL) {
70 mpool_put(t->bt_mp, t->bt_pinned, 0);
74 if (__rec_sync(dbp, 0) == RET_ERROR)
77 /* Committed to closing. */
79 if (F_ISSET(t, R_MEMMAPPED) && munmap(t->bt_smap, t->bt_msize))
82 if (!F_ISSET(t, R_INMEM))
83 if (F_ISSET(t, R_CLOSEFP)) {
84 if (fclose(t->bt_rfp))
87 if (_close(t->bt_rfd))
90 if (__bt_close(dbp) == RET_ERROR)
97 * __REC_SYNC -- sync the recno tree to disk.
100 * dbp: pointer to access method
103 * RET_SUCCESS, RET_ERROR.
106 __rec_sync(dbp, flags)
114 recno_t scursor, trec;
119 /* Toss any page pinned across calls. */
120 if (t->bt_pinned != NULL) {
121 mpool_put(t->bt_mp, t->bt_pinned, 0);
125 if (flags == R_RECNOSYNC)
126 return (__bt_sync(dbp, 0));
128 if (F_ISSET(t, R_RDONLY | R_INMEM) || !F_ISSET(t, R_MODIFIED))
129 return (RET_SUCCESS);
131 /* Read any remaining records into the tree. */
132 if (!F_ISSET(t, R_EOF) && t->bt_irec(t, MAX_REC_NUMBER) == RET_ERROR)
135 /* Rewind the file descriptor. */
136 if (lseek(t->bt_rfd, (off_t)0, SEEK_SET) != 0)
139 /* Save the cursor. */
140 scursor = t->bt_cursor.rcursor;
142 key.size = sizeof(recno_t);
145 if (F_ISSET(t, R_FIXLEN)) {
147 * We assume that fixed length records are all fixed length.
148 * Any that aren't are either EINVAL'd or corrected by the
151 status = (dbp->seq)(dbp, &key, &data, R_FIRST);
152 while (status == RET_SUCCESS) {
153 if (_write(t->bt_rfd, data.data, data.size) !=
156 status = (dbp->seq)(dbp, &key, &data, R_NEXT);
159 iov[1].iov_base = (char *)&t->bt_bval;
162 status = (dbp->seq)(dbp, &key, &data, R_FIRST);
163 while (status == RET_SUCCESS) {
164 iov[0].iov_base = data.data;
165 iov[0].iov_len = data.size;
166 if (writev(t->bt_rfd, iov, 2) != data.size + 1)
168 status = (dbp->seq)(dbp, &key, &data, R_NEXT);
172 /* Restore the cursor. */
173 t->bt_cursor.rcursor = scursor;
175 if (status == RET_ERROR)
177 if ((off = lseek(t->bt_rfd, (off_t)0, SEEK_CUR)) == -1)
179 if (ftruncate(t->bt_rfd, off))
181 F_CLR(t, R_MODIFIED);
182 return (RET_SUCCESS);