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064997fb FG |
1 | #[cfg(any(target_os = "android", target_os = "linux"))] |
2 | use rustix::fs::Stat; | |
3 | ||
4 | #[cfg(any(target_os = "android", target_os = "linux"))] | |
5 | fn same(a: &Stat, b: &Stat) -> bool { | |
6 | a.st_ino == b.st_ino && a.st_dev == b.st_dev | |
7 | } | |
8 | ||
9 | #[cfg(any(target_os = "android", target_os = "linux"))] | |
10 | #[test] | |
11 | fn test_renameat() { | |
12 | use rustix::fs::{cwd, openat, renameat, statat, AtFlags, Mode, OFlags}; | |
13 | ||
14 | let tmp = tempfile::tempdir().unwrap(); | |
15 | let dir = openat( | |
16 | cwd(), | |
17 | tmp.path(), | |
18 | OFlags::RDONLY | OFlags::PATH, | |
19 | Mode::empty(), | |
20 | ) | |
21 | .unwrap(); | |
22 | ||
23 | let _ = openat(&dir, "foo", OFlags::CREATE | OFlags::WRONLY, Mode::empty()).unwrap(); | |
24 | let before = statat(&dir, "foo", AtFlags::empty()).unwrap(); | |
25 | renameat(&dir, "foo", &dir, "bar").unwrap(); | |
26 | let renamed = statat(&dir, "bar", AtFlags::empty()).unwrap(); | |
27 | assert!(same(&before, &renamed)); | |
28 | } | |
29 | ||
30 | /// Like `test_renameat` but the file already exists, so `renameat` | |
31 | /// overwrites it. | |
32 | #[cfg(any(target_os = "android", target_os = "linux"))] | |
33 | #[test] | |
34 | fn test_renameat_overwrite() { | |
35 | use rustix::fs::{cwd, openat, renameat, statat, AtFlags, Mode, OFlags}; | |
36 | ||
37 | let tmp = tempfile::tempdir().unwrap(); | |
38 | let dir = openat( | |
39 | cwd(), | |
40 | tmp.path(), | |
41 | OFlags::RDONLY | OFlags::PATH, | |
42 | Mode::empty(), | |
43 | ) | |
44 | .unwrap(); | |
45 | ||
46 | let _ = openat(&dir, "foo", OFlags::CREATE | OFlags::WRONLY, Mode::empty()).unwrap(); | |
47 | let _ = openat(&dir, "bar", OFlags::CREATE | OFlags::WRONLY, Mode::empty()).unwrap(); | |
48 | let before = statat(&dir, "foo", AtFlags::empty()).unwrap(); | |
49 | renameat(&dir, "foo", &dir, "bar").unwrap(); | |
50 | let renamed = statat(&dir, "bar", AtFlags::empty()).unwrap(); | |
51 | assert!(same(&before, &renamed)); | |
52 | } | |
53 | ||
54 | #[cfg(any(target_os = "android", target_os = "linux"))] | |
55 | #[test] | |
56 | fn test_renameat_with() { | |
57 | use rustix::fs::{cwd, openat, renameat_with, statat, AtFlags, Mode, OFlags, RenameFlags}; | |
58 | ||
59 | let tmp = tempfile::tempdir().unwrap(); | |
60 | let dir = openat( | |
61 | cwd(), | |
62 | tmp.path(), | |
63 | OFlags::RDONLY | OFlags::PATH, | |
64 | Mode::empty(), | |
65 | ) | |
66 | .unwrap(); | |
67 | ||
68 | let _ = openat(&dir, "foo", OFlags::CREATE | OFlags::WRONLY, Mode::empty()).unwrap(); | |
69 | let before = statat(&dir, "foo", AtFlags::empty()).unwrap(); | |
70 | ||
71 | match renameat_with(&dir, "foo", &dir, "red", RenameFlags::empty()) { | |
72 | Ok(()) => (), | |
73 | Err(e) if e == rustix::io::Errno::NOSYS => return, | |
74 | Err(e) => unreachable!("unexpected error from renameat_with: {:?}", e), | |
75 | } | |
76 | ||
77 | let renamed = statat(&dir, "red", AtFlags::empty()).unwrap(); | |
78 | assert!(same(&before, &renamed)); | |
79 | ||
80 | let _ = openat( | |
81 | &dir, | |
82 | "green", | |
83 | OFlags::CREATE | OFlags::WRONLY, | |
84 | Mode::empty(), | |
85 | ) | |
86 | .unwrap(); | |
87 | ||
88 | #[cfg(all(target_os = "linux", target_env = "gnu"))] | |
89 | { | |
90 | let green = statat(&dir, "green", AtFlags::empty()).unwrap(); | |
91 | ||
92 | renameat_with(&dir, "red", &dir, "green", RenameFlags::NOREPLACE).unwrap_err(); | |
93 | let renamed = statat(&dir, "red", AtFlags::empty()).unwrap(); | |
94 | assert!(same(&before, &renamed)); | |
95 | let orig = statat(&dir, "green", AtFlags::empty()).unwrap(); | |
96 | assert!(same(&green, &orig)); | |
97 | ||
98 | renameat_with(&dir, "red", &dir, "green", RenameFlags::EXCHANGE).unwrap(); | |
99 | let renamed = statat(&dir, "red", AtFlags::empty()).unwrap(); | |
100 | assert!(same(&green, &renamed)); | |
101 | let orig = statat(&dir, "green", AtFlags::empty()).unwrap(); | |
102 | assert!(same(&before, &orig)); | |
103 | } | |
104 | } |