|
@@ -27,11 +27,6 @@
|
|
|
|
|
|
|
|
#include "tdb1_private.h"
|
|
#include "tdb1_private.h"
|
|
|
|
|
|
|
|
-_PUBLIC_ void tdb1_setalarm_sigptr(struct tdb1_context *tdb, volatile sig_atomic_t *ptr)
|
|
|
|
|
-{
|
|
|
|
|
- tdb->interrupt_sig_ptr = ptr;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
static int fcntl_lock(struct tdb1_context *tdb,
|
|
static int fcntl_lock(struct tdb1_context *tdb,
|
|
|
int rw, off_t off, off_t len, bool waitflag)
|
|
int rw, off_t off, off_t len, bool waitflag)
|
|
|
{
|
|
{
|
|
@@ -155,12 +150,6 @@ int tdb1_brlock(struct tdb1_context *tdb,
|
|
|
do {
|
|
do {
|
|
|
ret = fcntl_lock(tdb, rw_type, offset, len,
|
|
ret = fcntl_lock(tdb, rw_type, offset, len,
|
|
|
flags & TDB1_LOCK_WAIT);
|
|
flags & TDB1_LOCK_WAIT);
|
|
|
- /* Check for a sigalarm break. */
|
|
|
|
|
- if (ret == -1 && errno == EINTR &&
|
|
|
|
|
- tdb->interrupt_sig_ptr &&
|
|
|
|
|
- *tdb->interrupt_sig_ptr) {
|
|
|
|
|
- break;
|
|
|
|
|
- }
|
|
|
|
|
} while (ret == -1 && errno == EINTR);
|
|
} while (ret == -1 && errno == EINTR);
|
|
|
|
|
|
|
|
if (ret == -1) {
|
|
if (ret == -1) {
|
|
@@ -379,13 +368,6 @@ int tdb1_lock(struct tdb1_context *tdb, int list, int ltype)
|
|
|
return ret;
|
|
return ret;
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
-/* lock a list in the database. list -1 is the alloc list. non-blocking lock */
|
|
|
|
|
-int tdb1_lock_nonblock(struct tdb1_context *tdb, int list, int ltype)
|
|
|
|
|
-{
|
|
|
|
|
- return tdb1_lock_list(tdb, list, ltype, TDB1_LOCK_NOWAIT);
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-
|
|
|
|
|
int tdb1_nest_unlock(struct tdb1_context *tdb, uint32_t offset, int ltype,
|
|
int tdb1_nest_unlock(struct tdb1_context *tdb, uint32_t offset, int ltype,
|
|
|
bool mark_lock)
|
|
bool mark_lock)
|
|
|
{
|
|
{
|
|
@@ -649,25 +631,6 @@ _PUBLIC_ int tdb1_lockall(struct tdb1_context *tdb)
|
|
|
return tdb1_allrecord_lock(tdb, F_WRLCK, TDB1_LOCK_WAIT, false);
|
|
return tdb1_allrecord_lock(tdb, F_WRLCK, TDB1_LOCK_WAIT, false);
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
-/* lock entire database with write lock - mark only */
|
|
|
|
|
-_PUBLIC_ int tdb1_lockall_mark(struct tdb1_context *tdb)
|
|
|
|
|
-{
|
|
|
|
|
- return tdb1_allrecord_lock(tdb, F_WRLCK, TDB1_LOCK_MARK_ONLY, false);
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-/* unlock entire database with write lock - unmark only */
|
|
|
|
|
-_PUBLIC_ int tdb1_lockall_unmark(struct tdb1_context *tdb)
|
|
|
|
|
-{
|
|
|
|
|
- return tdb1_allrecord_unlock(tdb, F_WRLCK, true);
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-/* lock entire database with write lock - nonblocking varient */
|
|
|
|
|
-_PUBLIC_ int tdb1_lockall_nonblock(struct tdb1_context *tdb)
|
|
|
|
|
-{
|
|
|
|
|
- int ret = tdb1_allrecord_lock(tdb, F_WRLCK, TDB1_LOCK_NOWAIT, false);
|
|
|
|
|
- return ret;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
/* unlock entire database with write lock */
|
|
/* unlock entire database with write lock */
|
|
|
_PUBLIC_ int tdb1_unlockall(struct tdb1_context *tdb)
|
|
_PUBLIC_ int tdb1_unlockall(struct tdb1_context *tdb)
|
|
|
{
|
|
{
|
|
@@ -680,13 +643,6 @@ _PUBLIC_ int tdb1_lockall_read(struct tdb1_context *tdb)
|
|
|
return tdb1_allrecord_lock(tdb, F_RDLCK, TDB1_LOCK_WAIT, false);
|
|
return tdb1_allrecord_lock(tdb, F_RDLCK, TDB1_LOCK_WAIT, false);
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
-/* lock entire database with read lock - nonblock varient */
|
|
|
|
|
-_PUBLIC_ int tdb1_lockall_read_nonblock(struct tdb1_context *tdb)
|
|
|
|
|
-{
|
|
|
|
|
- int ret = tdb1_allrecord_lock(tdb, F_RDLCK, TDB1_LOCK_NOWAIT, false);
|
|
|
|
|
- return ret;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
/* unlock entire database with read lock */
|
|
/* unlock entire database with read lock */
|
|
|
_PUBLIC_ int tdb1_unlockall_read(struct tdb1_context *tdb)
|
|
_PUBLIC_ int tdb1_unlockall_read(struct tdb1_context *tdb)
|
|
|
{
|
|
{
|
|
@@ -701,30 +657,6 @@ _PUBLIC_ int tdb1_chainlock(struct tdb1_context *tdb, TDB1_DATA key)
|
|
|
return ret;
|
|
return ret;
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
-/* lock/unlock one hash chain, non-blocking. This is meant to be used
|
|
|
|
|
- to reduce contention - it cannot guarantee how many records will be
|
|
|
|
|
- locked */
|
|
|
|
|
-_PUBLIC_ int tdb1_chainlock_nonblock(struct tdb1_context *tdb, TDB1_DATA key)
|
|
|
|
|
-{
|
|
|
|
|
- int ret = tdb1_lock_nonblock(tdb, TDB1_BUCKET(tdb->hash_fn(&key)), F_WRLCK);
|
|
|
|
|
- return ret;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-/* mark a chain as locked without actually locking it. Warning! use with great caution! */
|
|
|
|
|
-_PUBLIC_ int tdb1_chainlock_mark(struct tdb1_context *tdb, TDB1_DATA key)
|
|
|
|
|
-{
|
|
|
|
|
- int ret = tdb1_nest_lock(tdb, lock_offset(TDB1_BUCKET(tdb->hash_fn(&key))),
|
|
|
|
|
- F_WRLCK, TDB1_LOCK_MARK_ONLY);
|
|
|
|
|
- return ret;
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
-/* unmark a chain as locked without actually locking it. Warning! use with great caution! */
|
|
|
|
|
-_PUBLIC_ int tdb1_chainlock_unmark(struct tdb1_context *tdb, TDB1_DATA key)
|
|
|
|
|
-{
|
|
|
|
|
- return tdb1_nest_unlock(tdb, lock_offset(TDB1_BUCKET(tdb->hash_fn(&key))),
|
|
|
|
|
- F_WRLCK, true);
|
|
|
|
|
-}
|
|
|
|
|
-
|
|
|
|
|
_PUBLIC_ int tdb1_chainunlock(struct tdb1_context *tdb, TDB1_DATA key)
|
|
_PUBLIC_ int tdb1_chainunlock(struct tdb1_context *tdb, TDB1_DATA key)
|
|
|
{
|
|
{
|
|
|
return tdb1_unlock(tdb, TDB1_BUCKET(tdb->hash_fn(&key)), F_WRLCK);
|
|
return tdb1_unlock(tdb, TDB1_BUCKET(tdb->hash_fn(&key)), F_WRLCK);
|