1 #[cfg(any(target_os = "android", target_os = "linux"))]
2 use crate::process::Pid;
3 use crate::{backend, io};
4
5 pub use backend::process::types::Resource;
6
7 /// `struct rlimit`—Current and maximum values used in [`getrlimit`],
8 /// [`setrlimit`], and [`prlimit`].
9 #[derive(Debug, Clone, PartialEq, Eq)]
10 pub struct Rlimit {
11 /// Current effective, "soft", limit.
12 pub current: Option<u64>,
13 /// Maximum, "hard", value that `current` may be dynamically increased to.
14 pub maximum: Option<u64>,
15 }
16
17 /// `getrlimit(resource)`—Get a process resource limit value.
18 ///
19 /// # References
20 /// - [POSIX]
21 /// - [Linux]
22 ///
23 /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/getrlimit.html
24 /// [Linux]: https://man7.org/linux/man-pages/man2/getrlimit.2.html
25 #[inline]
getrlimit(resource: Resource) -> Rlimit26 pub fn getrlimit(resource: Resource) -> Rlimit {
27 backend::process::syscalls::getrlimit(resource)
28 }
29
30 /// `setrlimit(resource, new)`—Set a process resource limit value.
31 ///
32 /// # References
33 /// - [POSIX]
34 /// - [Linux]
35 ///
36 /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/setrlimit.html
37 /// [Linux]: https://man7.org/linux/man-pages/man2/setrlimit.2.html
38 #[inline]
setrlimit(resource: Resource, new: Rlimit) -> io::Result<()>39 pub fn setrlimit(resource: Resource, new: Rlimit) -> io::Result<()> {
40 backend::process::syscalls::setrlimit(resource, new)
41 }
42
43 /// `prlimit(pid, resource, new)`—Get and set a process resource limit value.
44 ///
45 /// # References
46 /// - [Linux]
47 ///
48 /// [Linux]: https://man7.org/linux/man-pages/man2/prlimit.2.html
49 #[cfg(any(target_os = "android", target_os = "linux"))]
50 #[inline]
prlimit(pid: Option<Pid>, resource: Resource, new: Rlimit) -> io::Result<Rlimit>51 pub fn prlimit(pid: Option<Pid>, resource: Resource, new: Rlimit) -> io::Result<Rlimit> {
52 backend::process::syscalls::prlimit(pid, resource, new)
53 }
54