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mdbx: refine providing information for the @MAIN and @GC sub-databases of a last committed modification transaction's ID.

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This commit is contained in:
Leonid Yuriev 2021-10-12 20:05:28 +03:00
parent 9dd15a4415
commit cbb71058ca
1 changed files with 13 additions and 6 deletions
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19
src/core.c
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@ -10057,9 +10057,6 @@ int mdbx_txn_commit_ex(MDBX_txn *txn, MDBX_commit_latency *latency) {
ts_3 = latency ? mdbx_osal_monotime() : 0;
if (likely(rc == MDBX_SUCCESS)) {
if (txn->mt_dbs[MAIN_DBI].md_flags & DBI_DIRTY)
txn->mt_dbs[MAIN_DBI].md_mod_txnid = txn->mt_txnid;
txn->mt_dbs[FREE_DBI].md_mod_txnid = txn->mt_txnid;
MDBX_meta meta, *head = mdbx_meta_head(env);
memcpy(meta.mm_magic_and_version, head->mm_magic_and_version, 8);
@ -10072,7 +10069,15 @@ int mdbx_txn_commit_ex(MDBX_txn *txn, MDBX_commit_latency *latency) {
meta.mm_geo = txn->mt_geo;
meta.mm_dbs[FREE_DBI] = txn->mt_dbs[FREE_DBI];
meta.mm_dbs[FREE_DBI].md_mod_txnid =
(txn->mt_dbistate[FREE_DBI] & DBI_DIRTY)
? txn->mt_txnid
: txn->mt_dbs[FREE_DBI].md_mod_txnid;
meta.mm_dbs[MAIN_DBI] = txn->mt_dbs[MAIN_DBI];
meta.mm_dbs[MAIN_DBI].md_mod_txnid =
(txn->mt_dbistate[MAIN_DBI] & DBI_DIRTY)
? txn->mt_txnid
: txn->mt_dbs[MAIN_DBI].md_mod_txnid;
meta.mm_canary = txn->mt_canary;
mdbx_meta_set_txnid(env, &meta, txn->mt_txnid);
@ -13150,7 +13155,7 @@ dirty:
}
if (unlikely(ret.page->mp_txnid > front) &&
(ret.page->mp_txnid > txn->mt_front || front < txn->mt_txnid)) {
unlikely(ret.page->mp_txnid > txn->mt_front || front < txn->mt_txnid)) {
bad_page(ret.page,
"invalid page txnid (%" PRIaTXN ") for %s' txnid (%" PRIaTXN ")\n",
ret.page->mp_txnid,
@ -13404,11 +13409,13 @@ __hot static int mdbx_page_search(MDBX_cursor *mc, const MDBX_val *key,
: mc->mc_txn->mt_txnid;
MDBX_txn *scan = mc->mc_txn;
do
if (scan->mt_dbistate[mc->mc_dbi] & DBI_DIRTY) {
if ((scan->mt_flags & MDBX_TXN_DIRTY) &&
(mc->mc_dbi == MAIN_DBI ||
(scan->mt_dbistate[mc->mc_dbi] & DBI_DIRTY))) {
pp_txnid = scan->mt_front;
break;
}
while ((scan = scan->mt_parent) != nullptr);
while (unlikely((scan = scan->mt_parent) != nullptr));
if (unlikely((rc = mdbx_page_get(mc, root, &mc->mc_pg[0], pp_txnid) != 0)))
return rc;
}