1 /*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 use crate::adapter::{
17 create_dir, error_control, get_parent, next_line, read_lines, seek, MakeDirectionMode, SeekPos,
18 Str, StringVector,
19 };
20 use libc::c_char;
21 use std::ffi::CString;
22 use std::ptr::null_mut;
23
24 #[no_mangle]
ReadLines(path: *const c_char) -> *mut StringVector25 pub unsafe extern "C" fn ReadLines(path: *const c_char) -> *mut StringVector {
26 match read_lines(path) {
27 Ok(sv) => sv,
28 Err(e) => {
29 error_control(e);
30 null_mut()
31 }
32 }
33 }
34
35 #[no_mangle]
NextLine(lines: *mut StringVector) -> *mut Str36 pub unsafe extern "C" fn NextLine(lines: *mut StringVector) -> *mut Str {
37 match next_line(lines) {
38 Ok(s) => s,
39 Err(e) => {
40 error_control(e);
41 null_mut()
42 }
43 }
44 }
45
46 #[no_mangle]
StringVectorFree(lines: *mut StringVector)47 pub unsafe extern "C" fn StringVectorFree(lines: *mut StringVector) {
48 if !lines.is_null() {
49 let _ = Box::from_raw(lines);
50 }
51 }
52
53 #[no_mangle]
Lseek(fd: i32, offset: i64, pos: SeekPos)54 pub extern "C" fn Lseek(fd: i32, offset: i64, pos: SeekPos) {
55 match seek(fd, offset, pos) {
56 Ok(_) => {}
57 Err(e) => unsafe {
58 error_control(e);
59 },
60 }
61 }
62
63 #[no_mangle]
Mkdirs(path: *const c_char, mode: MakeDirectionMode)64 pub extern "C" fn Mkdirs(path: *const c_char, mode: MakeDirectionMode) {
65 match create_dir(path, mode) {
66 Ok(_) => {}
67 Err(e) => unsafe { error_control(e) },
68 }
69 }
70
71 #[no_mangle]
GetParent(fd: i32) -> *mut Str72 pub extern "C" fn GetParent(fd: i32) -> *mut Str {
73 match get_parent(fd) {
74 Ok(str) => str,
75 Err(e) => {
76 unsafe {
77 error_control(e);
78 }
79 null_mut()
80 }
81 }
82 }
83
84 #[no_mangle]
ParentFree(str: *mut Str)85 pub unsafe extern "C" fn ParentFree(str: *mut Str) {
86 if !str.is_null() {
87 let string = Box::from_raw(str);
88 let _ = CString::from_raw(string.str as *mut c_char);
89 }
90 }
91