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mdbx: логирование и возврат MDBX_INCOMPATIBLE при попытке запуска вложенных транзакций в режиме MDBX_WRITEMAP.

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This commit is contained in:
Леонид Юрьев (Leonid Yuriev) 2025-01-03 21:23:45 +03:00
parent 0a364aefbb
commit dc98f06d2c
1 changed files with 6 additions and 1 deletions
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7
src/api-txn.c
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@ -199,8 +199,13 @@ int mdbx_txn_begin_ex(MDBX_env *env, MDBX_txn *parent, MDBX_txn_flags_t flags, M
if (parent) {
/* Nested transactions: Max 1 child, write txns only, no writemap */
rc = check_txn_rw(parent, MDBX_TXN_RDONLY | MDBX_WRITEMAP | MDBX_TXN_BLOCKED);
if (unlikely(rc != MDBX_SUCCESS))
if (unlikely(rc != MDBX_SUCCESS)) {
if (rc == MDBX_BAD_TXN && (parent->flags & (MDBX_TXN_RDONLY | MDBX_TXN_BLOCKED)) == 0) {
ERROR("%s mode is incompatible with nested transactions", "MDBX_WRITEMAP");
rc = MDBX_INCOMPATIBLE;
}
return LOG_IFERR(rc);
}
if (env->options.spill_parent4child_denominator) {
/* Spill dirty-pages of parent to provide dirtyroom for child txn */