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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 1.3 2005/01/31 22:29:13 dillon Exp $
38 #include "namespace.h"
39 #include <sys/types.h>
47 #include "un-namespace.h"
53 * __REC_CLOSE -- Close a recno tree.
56 * dbp: pointer to access method
59 * RET_ERROR, RET_SUCCESS
70 /* Toss any page pinned across calls. */
71 if (t->bt_pinned != NULL) {
72 mpool_put(t->bt_mp, t->bt_pinned, 0);
76 if (__rec_sync(dbp, 0) == RET_ERROR)
79 /* Committed to closing. */
81 if (F_ISSET(t, R_MEMMAPPED) && munmap(t->bt_smap, t->bt_msize))
84 if (!F_ISSET(t, R_INMEM))
85 if (F_ISSET(t, R_CLOSEFP)) {
86 if (fclose(t->bt_rfp))
89 if (_close(t->bt_rfd))
92 if (__bt_close(dbp) == RET_ERROR)
99 * __REC_SYNC -- sync the recno tree to disk.
102 * dbp: pointer to access method
105 * RET_SUCCESS, RET_ERROR.
108 __rec_sync(dbp, flags)
116 recno_t scursor, trec;
121 /* Toss any page pinned across calls. */
122 if (t->bt_pinned != NULL) {
123 mpool_put(t->bt_mp, t->bt_pinned, 0);
127 if (flags == R_RECNOSYNC)
128 return (__bt_sync(dbp, 0));
130 if (F_ISSET(t, R_RDONLY | R_INMEM) || !F_ISSET(t, R_MODIFIED))
131 return (RET_SUCCESS);
133 /* Read any remaining records into the tree. */
134 if (!F_ISSET(t, R_EOF) && t->bt_irec(t, MAX_REC_NUMBER) == RET_ERROR)
137 /* Rewind the file descriptor. */
138 if (lseek(t->bt_rfd, (off_t)0, SEEK_SET) != 0)
141 /* Save the cursor. */
142 scursor = t->bt_cursor.rcursor;
144 key.size = sizeof(recno_t);
147 if (F_ISSET(t, R_FIXLEN)) {
149 * We assume that fixed length records are all fixed length.
150 * Any that aren't are either EINVAL'd or corrected by the
153 status = (dbp->seq)(dbp, &key, &data, R_FIRST);
154 while (status == RET_SUCCESS) {
155 if (_write(t->bt_rfd, data.data, data.size) !=
158 status = (dbp->seq)(dbp, &key, &data, R_NEXT);
161 iov[1].iov_base = (char *)&t->bt_bval;
164 status = (dbp->seq)(dbp, &key, &data, R_FIRST);
165 while (status == RET_SUCCESS) {
166 iov[0].iov_base = data.data;
167 iov[0].iov_len = data.size;
168 if (_writev(t->bt_rfd, iov, 2) != data.size + 1)
170 status = (dbp->seq)(dbp, &key, &data, R_NEXT);
174 /* Restore the cursor. */
175 t->bt_cursor.rcursor = scursor;
177 if (status == RET_ERROR)
179 if ((off = lseek(t->bt_rfd, (off_t)0, SEEK_CUR)) == -1)
181 if (ftruncate(t->bt_rfd, off))
183 F_CLR(t, R_MODIFIED);
184 return (RET_SUCCESS);