}
static int fcntl_lock(struct tdb_context *tdb,
- int rw, off_t off, off_t len, bool wait)
+ int rw, off_t off, off_t len, bool waitflag)
{
struct flock fl;
-
+
fl.l_type = rw;
fl.l_whence = SEEK_SET;
fl.l_start = off;
fl.l_len = len;
fl.l_pid = 0;
- if (wait)
+ if (waitflag)
return fcntl(tdb->fd, F_SETLKW, &fl);
else
return fcntl(tdb->fd, F_SETLK, &fl);
* EAGAIN is an expected return from non-blocking
* locks. */
if (!(flags & TDB_LOCK_PROBE) && errno != EAGAIN) {
- TDB_LOG((tdb, TDB_DEBUG_TRACE,"tdb_brlock failed (fd=%d) at offset %d rw_type=%d flags=%d len=%d\n",
+ TDB_LOG((tdb, TDB_DEBUG_TRACE,"tdb_brlock failed (fd=%d) at offset %d rw_type=%d flags=%d len=%d\n",
tdb->fd, offset, rw_type, flags, (int)len));
}
return -1;
} while (ret == -1 && errno == EINTR);
if (ret == -1) {
- TDB_LOG((tdb, TDB_DEBUG_TRACE,"tdb_brunlock failed (fd=%d) at offset %d rw_type=%d len=%d\n",
+ TDB_LOG((tdb, TDB_DEBUG_TRACE,"tdb_brunlock failed (fd=%d) at offset %d rw_type=%d len=%d\n",
tdb->fd, offset, rw_type, (int)len));
}
return ret;
struct tdb_lock_type *new_lck;
int i;
- /* a global lock allows us to avoid per chain locks */
- if (tdb->global_lock.count &&
- (ltype == tdb->global_lock.ltype || ltype == F_RDLCK)) {
+ /* a allrecord lock allows us to avoid per chain locks */
+ if (tdb->allrecord_lock.count &&
+ (ltype == tdb->allrecord_lock.ltype || ltype == F_RDLCK)) {
return 0;
}
- if (tdb->global_lock.count) {
+ if (tdb->allrecord_lock.count) {
tdb->ecode = TDB_ERR_LOCK;
return -1;
}
struct tdb_lock_type *lck = NULL;
/* a global lock allows us to avoid per chain locks */
- if (tdb->global_lock.count &&
- (ltype == tdb->global_lock.ltype || ltype == F_RDLCK)) {
+ if (tdb->allrecord_lock.count &&
+ (ltype == tdb->allrecord_lock.ltype || ltype == F_RDLCK)) {
return 0;
}
- if (tdb->global_lock.count) {
+ if (tdb->allrecord_lock.count) {
tdb->ecode = TDB_ERR_LOCK;
return -1;
}
*/
int tdb_transaction_lock(struct tdb_context *tdb, int ltype)
{
- if (tdb->global_lock.count) {
+ if (tdb->allrecord_lock.count) {
return 0;
}
if (tdb->transaction_lock_count > 0) {
int tdb_transaction_unlock(struct tdb_context *tdb, int ltype)
{
int ret;
- if (tdb->global_lock.count) {
+ if (tdb->allrecord_lock.count) {
return 0;
}
if (tdb->transaction_lock_count > 1) {
return -1;
}
- if (tdb->global_lock.count && tdb->global_lock.ltype == ltype) {
- tdb->global_lock.count++;
+ if (tdb->allrecord_lock.count && tdb->allrecord_lock.ltype == ltype) {
+ tdb->allrecord_lock.count++;
return 0;
}
- if (tdb->global_lock.count) {
+ if (tdb->allrecord_lock.count) {
/* a global lock of a different type exists */
tdb->ecode = TDB_ERR_LOCK;
return -1;
return -1;
}
- tdb->global_lock.count = 1;
- tdb->global_lock.ltype = ltype;
+ tdb->allrecord_lock.count = 1;
+ tdb->allrecord_lock.ltype = ltype;
return 0;
}
return -1;
}
- if (tdb->global_lock.ltype != ltype || tdb->global_lock.count == 0) {
+ if (tdb->allrecord_lock.ltype != ltype || tdb->allrecord_lock.count == 0) {
tdb->ecode = TDB_ERR_LOCK;
return -1;
}
- if (tdb->global_lock.count > 1) {
- tdb->global_lock.count--;
+ if (tdb->allrecord_lock.count > 1) {
+ tdb->allrecord_lock.count--;
return 0;
}
return -1;
}
- tdb->global_lock.count = 0;
- tdb->global_lock.ltype = 0;
+ tdb->allrecord_lock.count = 0;
+ tdb->allrecord_lock.ltype = 0;
return 0;
}
return tdb_unlock(tdb, BUCKET(tdb->hash_fn(&key)), F_RDLCK);
}
+
+
/* record lock stops delete underneath */
int tdb_lock_record(struct tdb_context *tdb, tdb_off_t off)
{
- if (tdb->global_lock.count) {
+ if (tdb->allrecord_lock.count) {
return 0;
}
return off ? tdb->methods->brlock(tdb, F_RDLCK, off, 1, TDB_LOCK_WAIT) : 0;
struct tdb_traverse_lock *i;
uint32_t count = 0;
- if (tdb->global_lock.count) {
+ if (tdb->allrecord_lock.count) {
return 0;
}