1 use crate::FileTime;
2 use libc::{time_t, timespec};
3 use std::fs;
4 use std::os::unix::prelude::*;
5
6 cfg_if::cfg_if! {
7 if #[cfg(target_os = "linux")] {
8 mod utimes;
9 mod linux;
10 pub use self::linux::*;
11 } else if #[cfg(target_os = "android")] {
12 mod android;
13 pub use self::android::*;
14 } else if #[cfg(target_os = "macos")] {
15 mod utimes;
16 mod macos;
17 pub use self::macos::*;
18 } else if #[cfg(any(target_os = "solaris",
19 target_os = "illumos",
20 target_os = "emscripten",
21 target_os = "freebsd",
22 target_os = "netbsd",
23 target_os = "openbsd",
24 target_os = "haiku"))] {
25 mod utimensat;
26 pub use self::utimensat::*;
27 } else {
28 mod utimes;
29 pub use self::utimes::*;
30 }
31 }
32
33 #[allow(dead_code)]
to_timespec(ft: &Option<FileTime>) -> timespec34 fn to_timespec(ft: &Option<FileTime>) -> timespec {
35 cfg_if::cfg_if! {
36 if #[cfg(any(target_os = "macos",
37 target_os = "illumos",
38 target_os = "freebsd"))] {
39 // https://github.com/apple/darwin-xnu/blob/a449c6a3b8014d9406c2ddbdc81795da24aa7443/bsd/sys/stat.h#L541
40 // https://github.com/illumos/illumos-gate/blob/master/usr/src/boot/sys/sys/stat.h#L312
41 // https://svnweb.freebsd.org/base/head/sys/sys/stat.h?view=markup#l359
42 const UTIME_OMIT: i64 = -2;
43 } else if #[cfg(target_os = "openbsd")] {
44 // https://github.com/openbsd/src/blob/master/sys/sys/stat.h#L189
45 const UTIME_OMIT: i64 = -1;
46 } else if #[cfg(target_os = "haiku")] {
47 // https://git.haiku-os.org/haiku/tree/headers/posix/sys/stat.h?#n106
48 const UTIME_OMIT: i64 = 1000000001;
49 } else {
50 // http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/sys/stat.h?annotate=1.68.30.1
51 // https://github.com/emscripten-core/emscripten/blob/master/system/include/libc/sys/stat.h#L71
52 const UTIME_OMIT: i64 = 1_073_741_822;
53 }
54 }
55
56 if let &Some(ft) = ft {
57 timespec {
58 tv_sec: ft.seconds() as time_t,
59 tv_nsec: ft.nanoseconds() as _,
60 }
61 } else {
62 timespec {
63 tv_sec: 0,
64 tv_nsec: UTIME_OMIT as _,
65 }
66 }
67 }
68
from_last_modification_time(meta: &fs::Metadata) -> FileTime69 pub fn from_last_modification_time(meta: &fs::Metadata) -> FileTime {
70 FileTime {
71 seconds: meta.mtime(),
72 nanos: meta.mtime_nsec() as u32,
73 }
74 }
75
from_last_access_time(meta: &fs::Metadata) -> FileTime76 pub fn from_last_access_time(meta: &fs::Metadata) -> FileTime {
77 FileTime {
78 seconds: meta.atime(),
79 nanos: meta.atime_nsec() as u32,
80 }
81 }
82
from_creation_time(meta: &fs::Metadata) -> Option<FileTime>83 pub fn from_creation_time(meta: &fs::Metadata) -> Option<FileTime> {
84 macro_rules! birthtim {
85 ($(($e:expr, $i:ident)),*) => {
86 #[cfg(any($(target_os = $e),*))]
87 fn imp(meta: &fs::Metadata) -> Option<FileTime> {
88 $(
89 #[cfg(target_os = $e)]
90 use std::os::$i::fs::MetadataExt;
91 )*
92 Some(FileTime {
93 seconds: meta.st_birthtime(),
94 nanos: meta.st_birthtime_nsec() as u32,
95 })
96 }
97
98 #[cfg(all($(not(target_os = $e)),*))]
99 fn imp(_meta: &fs::Metadata) -> Option<FileTime> {
100 None
101 }
102 }
103 }
104
105 birthtim! {
106 ("bitrig", bitrig),
107 ("freebsd", freebsd),
108 ("ios", ios),
109 ("macos", macos),
110 ("openbsd", openbsd)
111 }
112
113 imp(meta)
114 }
115