NAME

       mdb_txn - Transaction Flags

SYNOPSIS

   Macros
       #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)

Detailed Description

Macro Definition Documentation

   #define MDB_TXN_BEGIN_FLAGS   MDB_RDONLY
       mdb_txn_begin() flags

   #define MDB_TXN_RDONLY   MDB_RDONLY
       read-only transaction

   #define MDB_TXN_WRITEMAP   MDB_WRITEMAP
       copy of MDB_env flag in writers

   #define MDB_TXN_FINISHED   0x01
       txn is finished or never began

   #define MDB_TXN_ERROR   0x02
       txn is unusable after an error

   #define MDB_TXN_DIRTY   0x04
       must write, even if dirty list is empty

   #define MDB_TXN_SPILLS   0x08
       txn or a parent has spilled pages

   #define MDB_TXN_HAS_CHILD   0x10
       txn has an MDB_txn.mt_child

   #define MDB_TXN_BLOCKED   (MDB_TXN_FINISHED|MDB_TXN_ERROR|MDB_TXN_HAS_CHILD)
       most operations on the txn are currently illegal

Author

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                                               LMDB                                    mdb_txn(3)