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mdbx: переработка mdbx_txn_release_all_cursors_ex() (backport).

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Леонид Юрьев (Leonid Yuriev)
2025-03-20 01:42:50 +03:00
parent 682233ba28
commit 5fd319bbc2
2 changed files with 43 additions and 34 deletions
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26
mdbx.h
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@@ -5261,15 +5261,12 @@ LIBMDBX_API void mdbx_cursor_close(MDBX_cursor *cursor);
* \retval MDBX_EINVAL An invalid parameter was specified. */
LIBMDBX_API int mdbx_cursor_close2(MDBX_cursor *cursor);
/** \brief Unbind or closes all cursors of a given transaction.
/** \brief Unbind or closes all cursors of a given transaction and of all
* its parent transactions if ones are.
* \ingroup c_cursors
*
* Unbinds either closes all cursors associated (opened or renewed) with
* a given transaction in a bulk with minimal overhead.
*
* A transaction should not be nested, since in this case no way to restore
* state if this nested transaction will be aborted, nor impossible to define
* the expected behavior.
* Unbinds either closes all cursors associated (opened, renewed or binded) with
* the given transaction in a bulk with minimal overhead.
*
* \see mdbx_cursor_unbind()
* \see mdbx_cursor_close()
@@ -5284,19 +5281,16 @@ LIBMDBX_API int mdbx_cursor_close2(MDBX_cursor *cursor);
* some possible errors are:
* \retval MDBX_THREAD_MISMATCH Given transaction is not owned
* by current thread.
* \retval MDBX_BAD_TXN Given transaction is invalid, nested or has
* \retval MDBX_BAD_TXN Given transaction is invalid or has
* a child/nested transaction transaction. */
LIBMDBX_API int mdbx_txn_release_all_cursors_ex(const MDBX_txn *txn, bool unbind, size_t *count);
/** \brief Unbind or closes all cursors of a given transaction.
/** \brief Unbind or closes all cursors of a given transaction and of all
* its parent transactions if ones are.
* \ingroup c_cursors
*
* Unbinds either closes all cursors associated (opened or renewed) with
* a given transaction in a bulk with minimal overhead.
*
* A transaction should not be nested, since in this case no way to restore
* state if this nested transaction will be aborted, nor impossible to define
* the expected behavior.
* Unbinds either closes all cursors associated (opened, renewed or binded) with
* the given transaction in a bulk with minimal overhead.
*
* \see mdbx_cursor_unbind()
* \see mdbx_cursor_close()
@@ -5309,7 +5303,7 @@ LIBMDBX_API int mdbx_txn_release_all_cursors_ex(const MDBX_txn *txn, bool unbind
* some possible errors are:
* \retval MDBX_THREAD_MISMATCH Given transaction is not owned
* by current thread.
* \retval MDBX_BAD_TXN Given transaction is invalid, nested or has
* \retval MDBX_BAD_TXN Given transaction is invalid or has
* a child/nested transaction transaction. */
LIBMDBX_INLINE_API(int, mdbx_txn_release_all_cursors, (const MDBX_txn *txn, bool unbind)) {
return mdbx_txn_release_all_cursors_ex(txn, unbind, NULL);