| mdb_txn(3) | Library Functions Manual | mdb_txn(3) |
mdb_txn
#define MDB_TXN_BEGIN_FLAGS MDB_RDONLY
#define MDB_TXN_RDONLY MDB_RDONLY
#define MDB_TXN_WRITEMAP MDB_WRITEMAP
#define MDB_TXN_FINISHED 0x01
#define MDB_TXN_ERROR 0x02
#define MDB_TXN_DIRTY 0x04
#define MDB_TXN_SPILLS 0x08
#define MDB_TXN_HAS_CHILD 0x10
#define MDB_TXN_BLOCKED
(MDB_TXN_FINISHED|MDB_TXN_ERROR|MDB_TXN_HAS_CHILD)
mdb_txn_begin() flags
read-only transaction
copy of MDB_env flag in writers
txn is finished or never began
txn is unusable after an error
must write, even if dirty list is empty
txn or a parent has spilled pages
txn has an MDB_txn.mt_child
most operations on the txn are currently illegal
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| Wed Mar 25 2020 | LMDB |