1 use crate::FileTime;
2 use std::ffi::CString;
3 use std::fs::File;
4 use std::io;
5 use std::os::unix::prelude::*;
6 use std::path::Path;
7
set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()>8 pub fn set_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
9 set_times(p, Some(atime), Some(mtime), false)
10 }
11
set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()>12 pub fn set_file_mtime(p: &Path, mtime: FileTime) -> io::Result<()> {
13 set_times(p, None, Some(mtime), false)
14 }
15
set_file_atime(p: &Path, atime: FileTime) -> io::Result<()>16 pub fn set_file_atime(p: &Path, atime: FileTime) -> io::Result<()> {
17 set_times(p, Some(atime), None, false)
18 }
19
set_file_handle_times( f: &File, atime: Option<FileTime>, mtime: Option<FileTime>, ) -> io::Result<()>20 pub fn set_file_handle_times(
21 f: &File,
22 atime: Option<FileTime>,
23 mtime: Option<FileTime>,
24 ) -> io::Result<()> {
25 let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
26
27 // On Android NDK before version 19, `futimens` is not available.
28 //
29 // For better compatibility, we reimplement `futimens` using `utimensat`,
30 // the same way as bionic libc uses it to implement `futimens`.
31 let rc = unsafe { libc::utimensat(f.as_raw_fd(), core::ptr::null(), times.as_ptr(), 0) };
32 if rc == 0 {
33 Ok(())
34 } else {
35 Err(io::Error::last_os_error())
36 }
37 }
38
set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()>39 pub fn set_symlink_file_times(p: &Path, atime: FileTime, mtime: FileTime) -> io::Result<()> {
40 set_times(p, Some(atime), Some(mtime), false)
41 }
42
set_times( p: &Path, atime: Option<FileTime>, mtime: Option<FileTime>, symlink: bool, ) -> io::Result<()>43 fn set_times(
44 p: &Path,
45 atime: Option<FileTime>,
46 mtime: Option<FileTime>,
47 symlink: bool,
48 ) -> io::Result<()> {
49 let flags = if symlink {
50 libc::AT_SYMLINK_NOFOLLOW
51 } else {
52 0
53 };
54
55 let p = CString::new(p.as_os_str().as_bytes())?;
56 let times = [super::to_timespec(&atime), super::to_timespec(&mtime)];
57 let rc = unsafe { libc::utimensat(libc::AT_FDCWD, p.as_ptr(), times.as_ptr(), flags) };
58 if rc == 0 {
59 Ok(())
60 } else {
61 Err(io::Error::last_os_error())
62 }
63 }
64