Function mdb_txn_id

pub unsafe extern "C" fn mdb_txn_id(txn: *mut MDB_txn) -> usize

@brief Return the transaction’s ID.

This returns the identifier associated with this transaction. For a read-only transaction, this corresponds to the snapshot being read; concurrent readers will frequently have the same transaction ID.

@param[in] txn A transaction handle returned by #mdb_txn_begin() @return A transaction ID, valid if input is an active transaction.