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mdbx: relax DBI-sequences for concurrent open DBI-handles for present tables.

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Change-Id: I7f07d2e716074bd9c2847aeb062e366f46cca214
This commit is contained in:
Leonid Yuriev 2018-11-19 13:30:10 +03:00
parent eda424ff71
commit f626acb398
1 changed files with 4 additions and 4 deletions
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8
src/mdbx.c
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@ -12100,19 +12100,19 @@ int mdbx_dbi_open_ex(MDBX_txn *txn, const char *table_name, unsigned user_flags,
bailout:
mdbx_free(namedup);
} else {
txn->mt_dbiseqs[slot] = (env->me_dbiseqs[slot] += 1);
txn->mt_dbflags[slot] = (uint8_t)dbflag;
txn->mt_dbxs[slot].md_name.iov_base = namedup;
mdbx_compiler_barrier();
txn->mt_dbxs[slot].md_name.iov_len = len;
if (slot == txn->mt_numdbs)
txn->mt_numdbs++;
txn->mt_numdbs += (slot == txn->mt_numdbs);
if ((dbflag & DB_CREAT) == 0) {
env->me_dbflags[slot] = txn->mt_dbs[slot].md_flags | MDBX_VALID;
mdbx_compiler_barrier();
if (env->me_numdbs <= slot)
env->me_numdbs = slot + 1;
} else {
env->me_dbiseqs[slot] += 1;
}
txn->mt_dbiseqs[slot] = env->me_dbiseqs[slot];
*dbi = slot;
}