MDB_val Struct Reference
[LMDB API]

Generic structure used for passing keys and data in and out of the database. More...

#include <lmdb.h>

Data Fields

size_t mv_size
void * mv_data

Detailed Description

Generic structure used for passing keys and data in and out of the database.

Values returned from the database are valid only until a subsequent update operation, or the end of the transaction. Do not modify or free them, they commonly point into the database itself.

Key sizes must be between 1 and mdb_env_get_maxkeysize() inclusive. The same applies to data sizes in databases with the MDB_DUPSORT flag. Other data items can in theory be from 0 to 0xffffffff bytes long.


Field Documentation

size of the data item

address of the data item


The documentation for this struct was generated from the following file:
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Generated on 15 Feb 2016 for LMDB by  doxygen 1.6.1