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mdbx: MDB_END_EOTDONE and refine txn_commit().

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This commit is contained in:
Leo Yuriev 2017-02-21 23:03:16 +03:00
parent 3d08b9e76f
commit abc7dca247
1 changed files with 12 additions and 15 deletions
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27
mdbx.c
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@ -1261,6 +1261,7 @@ enum {
#define MDB_END_OPMASK 0x0F /**< mask for #mdbx_txn_end() operation number */
#define MDB_END_UPDATE 0x10 /**< update env state (DBIs) */
#define MDB_END_FREE 0x20 /**< free txn unless it is #MDB_env.%me_txn0 */
#define MDB_END_EOTDONE 0x40 /**< txn's cursors already closed */
#define MDB_END_SLOT MDB_NOTLS /**< release any reader slot if #MDB_NOTLS */
static int mdbx_txn_end(MDB_txn *txn, unsigned mode);
@ -3266,7 +3267,7 @@ static int mdbx_txn_end(MDB_txn *txn, unsigned mode) {
} else if (!F_ISSET(txn->mt_flags, MDB_TXN_FINISHED)) {
pgno_t *pghead = env->me_pghead;
if (!(mode & MDB_END_UPDATE)) /* !(already closed cursors) */
if (!(mode & MDB_END_EOTDONE)) /* !(already closed cursors) */
mdbx_cursors_eot(txn, 0);
if (!(env->me_flags & MDB_WRITEMAP)) {
mdbx_dlist_free(txn);
@ -3806,8 +3807,7 @@ done:
int mdbx_txn_commit(MDB_txn *txn) {
int rc;
unsigned i, end_mode;
MDB_env *env;
unsigned i;
if (unlikely(txn == NULL))
return EINVAL;
@ -3815,15 +3815,12 @@ int mdbx_txn_commit(MDB_txn *txn) {
if (unlikely(txn->mt_signature != MDBX_MT_SIGNATURE))
return MDB_VERSION_MISMATCH;
if (unlikely(txn->mt_env->me_pid != getpid())) {
txn->mt_env->me_flags |= MDB_FATAL_ERROR;
MDB_env *env = txn->mt_env;
if (unlikely(env->me_pid != getpid())) {
env->me_flags |= MDB_FATAL_ERROR;
return MDB_PANIC;
}
/* mdbx_txn_end() mode for a commit which writes nothing */
end_mode =
MDB_END_EMPTY_COMMIT | MDB_END_UPDATE | MDB_END_SLOT | MDB_END_FREE;
if (txn->mt_child) {
rc = mdbx_txn_commit(txn->mt_child);
txn->mt_child = NULL;
@ -3831,11 +3828,11 @@ int mdbx_txn_commit(MDB_txn *txn) {
goto fail;
}
env = txn->mt_env;
if (unlikely(F_ISSET(txn->mt_flags, MDB_TXN_RDONLY))) {
/* mdbx_txn_end() mode for a commit which writes nothing */
unsigned end_mode =
MDB_END_EMPTY_COMMIT | MDB_END_UPDATE | MDB_END_SLOT | MDB_END_FREE;
if (unlikely(F_ISSET(txn->mt_flags, MDB_TXN_RDONLY)))
goto done;
}
if (unlikely(txn->mt_flags & (MDB_TXN_FINISHED | MDB_TXN_ERROR))) {
mdbx_debug("error flag is set, can't commit");
@ -3989,7 +3986,6 @@ int mdbx_txn_commit(MDB_txn *txn) {
return rc;
}
env = txn->mt_env;
if (unlikely(txn != env->me_txn)) {
mdbx_debug("attempt to commit unknown transaction");
rc = EINVAL;
@ -3997,6 +3993,7 @@ int mdbx_txn_commit(MDB_txn *txn) {
}
mdbx_cursors_eot(txn, 0);
end_mode |= MDB_END_EOTDONE;
if (!txn->mt_u.dirty_list[0].mid &&
!(txn->mt_flags & (MDB_TXN_DIRTY | MDB_TXN_SPILLS)))
@ -4054,7 +4051,7 @@ int mdbx_txn_commit(MDB_txn *txn) {
}
if (unlikely(rc != MDB_SUCCESS))
goto fail;
end_mode = MDB_END_COMMITTED | MDB_END_UPDATE;
end_mode = MDB_END_COMMITTED | MDB_END_UPDATE | MDB_END_EOTDONE;
done:
return mdbx_txn_end(txn, end_mode);