2 * $Id: cnid_db3_update.c,v 1.3 2005-05-03 14:55:13 didg Exp $
7 #endif /* HAVE_CONFIG_H */
9 #ifdef CNID_BACKEND_DB3
13 #include <sys/param.h>
16 #include <atalk/logger.h>
23 #include <netatalk/endian.h>
24 #include <atalk/adouble.h>
27 #include "cnid_db3_private.h"
29 /* cnid_update: takes the given cnid and updates the metadata. To
30 * handle the did/name data, there are a bunch of functions to get
31 * and set the various fields. */
32 int cnid_db3_update(struct _cnid_db *cdb, const cnid_t id, const struct stat *st,
33 const cnid_t did, char *name, const size_t len
34 /*, const char *info, const int infolen*/)
37 DBT key, data, altdata;
41 if (!cdb || !(db = cdb->_private) || !id || !st || !name || (db->flags & CNIDFLAG_DB_RO)) {
45 memset(&key, 0, sizeof(key));
46 memset(&altdata, 0, sizeof(altdata));
49 if ((rc = db3_txn_begin(db->dbenv, NULL, &tid, 0))) {
50 LOG(log_error, logtype_default, "cnid_update: Failed to begin transaction: %s", db_strerror(rc));
54 /* Get the old info. */
55 key.data = (cnid_t *)&id;
56 key.size = sizeof(id);
57 memset(&data, 0, sizeof(data));
58 if ((rc = db->db_cnid->get(db->db_cnid, tid, &key, &data, DB_RMW))) {
61 case DB_LOCK_DEADLOCK:
64 /* Silently fail here. We're allowed to do this since this CNID
65 * might have been deleted out from under us, or someone has
66 * called cnid_lookup then cnid_update (which is redundant). */
73 /* Delete the old dev/ino mapping. */
75 key.size = CNID_DEVINO_LEN;
76 if ((rc = db->db_devino->del(db->db_devino, tid, &key, 0))) {
78 case DB_LOCK_DEADLOCK:
89 /* Delete the old did/name mapping. */
90 key.data = (char *) data.data + CNID_DEVINO_LEN;
91 key.size = data.size - CNID_DEVINO_LEN;
92 if ((rc = db->db_didname->del(db->db_didname, tid, &key, 0))) {
94 case DB_LOCK_DEADLOCK:
105 /* Make a new entry. */
106 data.data = make_cnid_data(st, did, name, len);
107 data.size = CNID_HEADER_LEN + len + 1;
109 /* Update the old CNID with the new info. */
110 key.data = (cnid_t *) &id;
111 key.size = sizeof(id);
112 if ((rc = db->db_cnid->put(db->db_cnid, tid, &key, &data, 0))) {
115 case DB_LOCK_DEADLOCK:
122 /* Put in a new dev/ino mapping. */
123 key.data = data.data;
124 key.size = CNID_DEVINO_LEN;
125 altdata.data = (cnid_t *) &id;
126 altdata.size = sizeof(id);
127 if ((rc = db->db_devino->put(db->db_devino, tid, &key, &altdata, 0))) {
130 case DB_LOCK_DEADLOCK:
137 /* put in a new did/name mapping. */
138 key.data = (char *) data.data + CNID_DEVINO_LEN;
139 key.size = data.size - CNID_DEVINO_LEN;
140 if ((rc = db->db_didname->put(db->db_didname, tid, &key, &altdata, 0))) {
143 case DB_LOCK_DEADLOCK:
151 return db3_txn_commit(tid, 0);
154 LOG(log_error, logtype_default, "cnid_update: Unable to update CNID %u: %s",
155 ntohl(id), db_strerror(rc));
159 #endif /* CNID_BACKEND_DB3 */