Type Alias MDB_assert_func 

pub type MDB_assert_func = Option<unsafe extern "C" fn(env: *mut MDB_env, msg: *const c_char)>;

@brief A callback function for most LMDB assert() failures, called before printing the message and aborting.

@param[in] env An environment handle returned by #mdb_env_create(). @param[in] msg The assertion message, not including newline.

Aliased Type

pub enum MDB_assert_func {
    None,
    Some(unsafe extern "C" fn(*mut MDB_env, *const i8)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut MDB_env, *const i8))

Some value of type T.