Function safe_app::ffi::immutable_data::idata_read_from_self_encryptor

#[no_mangle]
pub unsafe extern "C" fn idata_read_from_self_encryptor(
    app: *const App, 
    se_h: SEReaderHandle, 
    from_pos: u64, 
    len: u64, 
    user_data: *mut c_void, 
    o_cb: extern "C" fn(_: *mut c_void, _: *const FfiResult, _: *const u8, _: usize)
)

Read from Self Encryptor.

Callback parameters: user data, error code, data, size