Type Alias MDBX_preserve_func

pub type MDBX_preserve_func = Option<unsafe extern "C" fn(context: *mut c_void, target: *mut MDBX_val, src: *const c_void, bytes: usize) -> c_int>;

Aliased Type

pub enum MDBX_preserve_func {
    None,
    Some(unsafe extern "C" fn(*mut c_void, *mut iovec, *const c_void, usize) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void, *mut iovec, *const c_void, usize) -> i32)

Some value of type T.