(&mut self, out: *mut FFI_ArrowArray)
| 235 | } |
| 236 | |
| 237 | pub fn get_next(&mut self, out: *mut FFI_ArrowArray) -> i32 { |
| 238 | let private_data = self.get_private_data(); |
| 239 | let reader = &mut private_data.batch_reader; |
| 240 | |
| 241 | match reader.next() { |
| 242 | None => { |
| 243 | // Marks ArrowArray released to indicate reaching the end of stream. |
| 244 | unsafe { std::ptr::write(out, FFI_ArrowArray::empty()) } |
| 245 | 0 |
| 246 | } |
| 247 | Some(next_batch) => { |
| 248 | if let Ok(batch) = next_batch { |
| 249 | let struct_array = StructArray::from(batch); |
| 250 | let array = FFI_ArrowArray::new(&struct_array.to_data()); |
| 251 | |
| 252 | unsafe { std::ptr::write_unaligned(out, array) }; |
| 253 | 0 |
| 254 | } else { |
| 255 | let err = &next_batch.unwrap_err(); |
| 256 | private_data.last_error = Some( |
| 257 | CString::new(err.to_string()).expect("Error string has a null byte in it."), |
| 258 | ); |
| 259 | get_error_code(err) |
| 260 | } |
| 261 | } |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | pub fn get_last_error(&mut self) -> Option<&CString> { |
| 266 | self.get_private_data().last_error.as_ref() |
no test coverage detected