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#[cfg(any(target_os = "android", target_os = "linux"))]
use rustix::fs::Stat;
#[cfg(any(target_os = "android", target_os = "linux"))]
fn same(a: &Stat, b: &Stat) -> bool {
a.st_ino == b.st_ino && a.st_dev == b.st_dev
}
#[cfg(any(target_os = "android", target_os = "linux"))]
#[test]
fn test_renameat() {
use rustix::fs::{cwd, openat, renameat, statat, AtFlags, Mode, OFlags};
let tmp = tempfile::tempdir().unwrap();
let dir = openat(
cwd(),
tmp.path(),
OFlags::RDONLY | OFlags::PATH,
Mode::empty(),
)
.unwrap();
let _ = openat(&dir, "foo", OFlags::CREATE | OFlags::WRONLY, Mode::empty()).unwrap();
let before = statat(&dir, "foo", AtFlags::empty()).unwrap();
renameat(&dir, "foo", &dir, "bar").unwrap();
let renamed = statat(&dir, "bar", AtFlags::empty()).unwrap();
assert!(same(&before, &renamed));
}
/// Like `test_renameat` but the file already exists, so `renameat`
/// overwrites it.
#[cfg(any(target_os = "android", target_os = "linux"))]
#[test]
fn test_renameat_overwrite() {
use rustix::fs::{cwd, openat, renameat, statat, AtFlags, Mode, OFlags};
let tmp = tempfile::tempdir().unwrap();
let dir = openat(
cwd(),
tmp.path(),
OFlags::RDONLY | OFlags::PATH,
Mode::empty(),
)
.unwrap();
let _ = openat(&dir, "foo", OFlags::CREATE | OFlags::WRONLY, Mode::empty()).unwrap();
let _ = openat(&dir, "bar", OFlags::CREATE | OFlags::WRONLY, Mode::empty()).unwrap();
let before = statat(&dir, "foo", AtFlags::empty()).unwrap();
renameat(&dir, "foo", &dir, "bar").unwrap();
let renamed = statat(&dir, "bar", AtFlags::empty()).unwrap();
assert!(same(&before, &renamed));
}
#[cfg(any(target_os = "android", target_os = "linux"))]
#[test]
fn test_renameat_with() {
use rustix::fs::{cwd, openat, renameat_with, statat, AtFlags, Mode, OFlags, RenameFlags};
let tmp = tempfile::tempdir().unwrap();
let dir = openat(
cwd(),
tmp.path(),
OFlags::RDONLY | OFlags::PATH,
Mode::empty(),
)
.unwrap();
let _ = openat(&dir, "foo", OFlags::CREATE | OFlags::WRONLY, Mode::empty()).unwrap();
let before = statat(&dir, "foo", AtFlags::empty()).unwrap();
match renameat_with(&dir, "foo", &dir, "red", RenameFlags::empty()) {
Ok(()) => (),
Err(e) if e == rustix::io::Errno::NOSYS => return,
Err(e) => unreachable!("unexpected error from renameat_with: {:?}", e),
}
let renamed = statat(&dir, "red", AtFlags::empty()).unwrap();
assert!(same(&before, &renamed));
let _ = openat(
&dir,
"green",
OFlags::CREATE | OFlags::WRONLY,
Mode::empty(),
)
.unwrap();
#[cfg(all(target_os = "linux", target_env = "gnu"))]
{
let green = statat(&dir, "green", AtFlags::empty()).unwrap();
renameat_with(&dir, "red", &dir, "green", RenameFlags::NOREPLACE).unwrap_err();
let renamed = statat(&dir, "red", AtFlags::empty()).unwrap();
assert!(same(&before, &renamed));
let orig = statat(&dir, "green", AtFlags::empty()).unwrap();
assert!(same(&green, &orig));
renameat_with(&dir, "red", &dir, "green", RenameFlags::EXCHANGE).unwrap();
let renamed = statat(&dir, "red", AtFlags::empty()).unwrap();
assert!(same(&green, &renamed));
let orig = statat(&dir, "green", AtFlags::empty()).unwrap();
assert!(same(&before, &orig));
}
}
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