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#[cfg(linux_kernel)]
use crate::process::Pid;
use crate::{backend, io};
pub use backend::process::types::Resource;
/// `struct rlimit`—Current and maximum values used in [`getrlimit`],
/// [`setrlimit`], and [`prlimit`].
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct Rlimit {
/// Current effective, “soft”, limit.
pub current: Option<u64>,
/// Maximum, “hard”, value that `current` may be dynamically increased to.
pub maximum: Option<u64>,
}
/// `getrlimit(resource)`—Get a process resource limit value.
///
/// # References
/// - [POSIX]
/// - [Linux]
///
#[inline]
pub fn getrlimit(resource: Resource) -> Rlimit {
backend::process::syscalls::getrlimit(resource)
}
/// `setrlimit(resource, new)`—Set a process resource limit value.
///
/// # References
/// - [POSIX]
/// - [Linux]
///
#[inline]
pub fn setrlimit(resource: Resource, new: Rlimit) -> io::Result<()> {
backend::process::syscalls::setrlimit(resource, new)
}
/// `prlimit(pid, resource, new)`—Get and set a process resource limit value.
///
/// # References
/// - [Linux]
///
#[cfg(linux_kernel)]
#[inline]
pub fn prlimit(pid: Option<Pid>, resource: Resource, new: Rlimit) -> io::Result<Rlimit> {
backend::process::syscalls::prlimit(pid, resource, new)
}