Merge remote-tracking branch 'origin/mdb.RE/0.9'

This commit is contained in:
Howard Chu 2016-06-15 11:44:41 +01:00
commit 7a30ce8c08
2 changed files with 33 additions and 16 deletions

View file

@ -1,11 +1,13 @@
LMDB 0.9 Change Log
LMDB 0.9.19 Release Engineering
Tweak Win32 error message buffer
Fix MDB_GET_BOTH on non-dup record (ITS#8393)
Optimize mdb_drop
Fix xcursors after mdb_cursor_del (ITS#8406)
Fix MDB_NEXT_DUP after mdb_cursor_del (ITS#8412)
Fix mdb_env_cwalk cursor init (ITS#8424)
Fix robust mutexes on Solaris 10/11 (ITS#8339)
Tweak Win32 error message buffer
Fix MDB_GET_BOTH on non-dup record (ITS#8393)
Optimize mdb_drop
Fix xcursors after mdb_cursor_del (ITS#8406)
Fix MDB_NEXT_DUP after mdb_cursor_del (ITS#8412)
LMDB 0.9.18 Release (2016/02/05)
Fix robust mutex detection on glibc 2.10-11 (ITS#8330)

View file

@ -257,7 +257,8 @@ typedef SSIZE_T ssize_t;
# else
# define MDB_USE_ROBUST 1
/* glibc < 2.12 only provided _np API */
# if defined(__GLIBC__) && GLIBC_VER < 0x02000c
# if (defined(__GLIBC__) && GLIBC_VER < 0x02000c) || \
(defined(PTHREAD_MUTEX_ROBUST_NP) && !defined(PTHREAD_MUTEX_ROBUST))
# define PTHREAD_MUTEX_ROBUST PTHREAD_MUTEX_ROBUST_NP
# define pthread_mutexattr_setrobust(attr, flag) pthread_mutexattr_setrobust_np(attr, flag)
# define pthread_mutex_consistent(mutex) pthread_mutex_consistent_np(mutex)
@ -4620,15 +4621,25 @@ mdb_env_setup_locks(MDB_env *env, char *lpath, int mode, int *excl)
#else /* MDB_USE_POSIX_MUTEX: */
pthread_mutexattr_t mattr;
if ((rc = pthread_mutexattr_init(&mattr))
|| (rc = pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED))
#ifdef MDB_ROBUST_SUPPORTED
|| (rc = pthread_mutexattr_setrobust(&mattr, PTHREAD_MUTEX_ROBUST))
#endif
|| (rc = pthread_mutex_init(env->me_txns->mti_rmutex, &mattr))
|| (rc = pthread_mutex_init(env->me_txns->mti_wmutex, &mattr)))
/* Solaris needs this before initing a robust mutex. Otherwise
* it may skip the init and return EBUSY "seems someone already
* inited" or EINVAL "it was inited differently".
*/
memset(env->me_txns->mti_rmutex, 0, sizeof(*env->me_txns->mti_rmutex));
memset(env->me_txns->mti_wmutex, 0, sizeof(*env->me_txns->mti_wmutex));
if ((rc = pthread_mutexattr_init(&mattr)))
goto fail;
rc = pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
#ifdef MDB_ROBUST_SUPPORTED
if (!rc) rc = pthread_mutexattr_setrobust(&mattr, PTHREAD_MUTEX_ROBUST);
#endif
if (!rc) rc = pthread_mutex_init(env->me_txns->mti_rmutex, &mattr);
if (!rc) rc = pthread_mutex_init(env->me_txns->mti_wmutex, &mattr);
pthread_mutexattr_destroy(&mattr);
if (rc)
goto fail;
#endif /* _WIN32 || MDB_USE_POSIX_SEM */
env->me_txns->mti_magic = MDB_MAGIC;
@ -6635,8 +6646,13 @@ current:
/* Note - this page is already counted in parent's dirty_room */
rc2 = mdb_mid2l_insert(mc->mc_txn->mt_u.dirty_list, &id2);
mdb_cassert(mc, rc2 == 0);
/* Currently we make the page look as with put() in the
* parent txn, in case the user peeks at MDB_RESERVEd
* or unused parts. Some users treat ovpages specially.
*/
if (!(flags & MDB_RESERVE)) {
/* Copy end of page, adjusting alignment so
/* Skip the part where LMDB will put *data.
* Copy end of page, adjusting alignment so
* compiler may copy words instead of bytes.
*/
off = (PAGEHDRSZ + data->mv_size) & -sizeof(size_t);
@ -8885,7 +8901,7 @@ mdb_env_cthr_toggle(mdb_copy *my, int st)
static int ESECT
mdb_env_cwalk(mdb_copy *my, pgno_t *pg, int flags)
{
MDB_cursor mc;
MDB_cursor mc = {0};
MDB_txn *txn = my->mc_txn;
MDB_node *ni;
MDB_page *mo, *mp, *leaf;
@ -8898,7 +8914,6 @@ mdb_env_cwalk(mdb_copy *my, pgno_t *pg, int flags)
return MDB_SUCCESS;
mc.mc_snum = 1;
mc.mc_top = 0;
mc.mc_txn = txn;
rc = mdb_page_get(my->mc_txn, *pg, &mc.mc_pg[0], NULL);