| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| use super::*; |
| |
| #[ocaml::func] |
| #[ocaml::sig("reader -> bytes -> int64 -> (int, string) Result.t ")] |
| pub fn reader_pread(reader: &mut Reader, mut buf: &mut [u8], offset: u64) -> Result<usize, String> { |
| let size = buf.len(); |
| let n = map_res_error(reader.0.read_into(&mut buf, offset..offset + size as u64))?; |
| Ok(n) |
| } |
