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#![deny(warnings, missing_docs)]
#[cfg(unix)]
extern crate libc;
#[cfg(windows)]
extern crate winapi;
use std::io;
use std::path::Path;
pub fn set_file_times<P: AsRef<Path>>(path: P, accessed: i64, modified: i64) -> io::Result<()> {
#[cfg(unix)]
fn utime<P: AsRef<Path>>(path: P, atime: i64, mtime: i64) -> io::Result<()> {
use libc::{c_char, c_int, time_t, timeval};
use std::ffi::CString;
use std::os::unix::prelude::*;
extern "C" {
fn utimes(name: *const c_char, times: *const timeval) -> c_int;
}
let path = CString::new(path.as_ref().as_os_str().as_bytes())?;
let atime = timeval {
tv_sec: atime as time_t,
tv_usec: 0,
};
let mtime = timeval {
tv_sec: mtime as time_t,
tv_usec: 0,
};
let times = [atime, mtime];
let ret = unsafe { utimes(path.as_ptr(), times.as_ptr()) };
if ret == 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
}
}
#[cfg(windows)]
fn utime<P: AsRef<Path>>(path: P, atime: i64, mtime: i64) -> io::Result<()> {
use std::fs::OpenOptions;
use std::os::windows::prelude::*;
use winapi::shared::minwindef::{DWORD, FILETIME};
use winapi::um::fileapi::SetFileTime;
let f = OpenOptions::new()
.write(true)
.custom_flags(winapi::um::winbase::FILE_FLAG_BACKUP_SEMANTICS)
.open(path)?;
let atime = to_filetime(atime);
let mtime = to_filetime(mtime);
fn to_filetime(seconds: i64) -> FILETIME {
let intervals = seconds * 10_000_000 + 116_444_736_000_000_000;
FILETIME {
dwLowDateTime: intervals as DWORD,
dwHighDateTime: (intervals >> 32) as DWORD,
}
}
let ret = unsafe {
SetFileTime(
f.as_raw_handle() as *mut _,
std::ptr::null(),
&atime,
&mtime,
)
};
if ret != 0 {
Ok(())
} else {
Err(io::Error::last_os_error())
}
}
utime(path, accessed, modified)
}
pub fn get_file_times<P: AsRef<Path>>(path: P) -> io::Result<(i64, i64)> {
#[cfg(unix)]
fn utime<P: AsRef<Path>>(path: P) -> io::Result<(i64, i64)> {
use std::fs::metadata;
use std::os::unix::fs::MetadataExt;
let meta = metadata(path)?;
Ok((meta.atime(), meta.mtime()))
}
#[cfg(windows)]
fn utime<P: AsRef<Path>>(path: P) -> io::Result<(i64, i64)> {
use std::fs::OpenOptions;
use std::os::windows::prelude::*;
use winapi::shared::minwindef::FILETIME;
use winapi::um::fileapi::GetFileTime;
let f = OpenOptions::new().write(true).open(path)?;
let handle = f.as_raw_handle() as *mut _;
let mut atime = FILETIME {
dwLowDateTime: 0,
dwHighDateTime: 0,
};
let mut mtime = FILETIME {
dwLowDateTime: 0,
dwHighDateTime: 0,
};
let ret = unsafe { GetFileTime(handle, std::ptr::null_mut(), &mut atime, &mut mtime) };
if ret == 0 {
return Err(io::Error::last_os_error());
}
fn to_seconds(ft: FILETIME) -> i64 {
let lo = ft.dwLowDateTime as u64;
let hi = (ft.dwHighDateTime as u64) << 32;
let intervals = (lo + hi) as i64 - 116_444_736_000_000_000;
intervals / 10_000_000
}
Ok((to_seconds(atime), to_seconds(mtime)))
}
utime(path)
}