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Rework ulimit constants

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Use a macro to reduce the size of these modules.
This commit is contained in:
Peter Ammon
2025-10-13 12:42:39 -07:00
parent 2b428fae38
commit 0ded3ed6f9
1 changed files with 21 additions and 143 deletions
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164
src/builtins/ulimit.rs
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@@ -10,7 +10,7 @@
use super::prelude::*;
pub mod limits {
/// Constants that exist everywhere (Linux, macOS, BSD).
/// Constants that exist everywhere (except perhaps Cygwin).
/// Note these are uints on Linux but ints everywhere else - we use -1 as a sentinel
/// so cast to int.
pub mod common {
@@ -39,151 +39,29 @@ pub mod common {
}
pub use self::common::*;
#[cfg(target_os = "linux")]
pub mod linux {
use libc;
pub const SIGPENDING: libc::c_int = libc::RLIMIT_SIGPENDING as _;
pub const MSGQUEUE: libc::c_int = libc::RLIMIT_MSGQUEUE as _;
pub const RTPRIO: libc::c_int = libc::RLIMIT_RTPRIO as _;
pub const RTTIME: libc::c_int = libc::RLIMIT_RTTIME as _;
pub const RSS: libc::c_int = libc::RLIMIT_RSS as _;
pub const AS: libc::c_int = libc::RLIMIT_AS as _;
// Define NAME as libc::LIBC_NAME on the listed OSes; -1 elsewhere.
macro_rules! define_on {
($name:ident, $libc_name:ident; $($os:literal),+ $(,)?) => {
#[cfg(any($(target_os = $os),+))]
pub const $name: libc::c_int = libc::$libc_name as _;
pub const SBSIZE: libc::c_int = -1;
pub const NICE: libc::c_int = -1;
pub const SWAP: libc::c_int = -1;
pub const KQUEUES: libc::c_int = -1;
pub const NPTS: libc::c_int = -1;
pub const NTHR: libc::c_int = -1;
#[cfg(not(any($(target_os = $os),+)))]
pub const $name: libc::c_int = -1;
};
}
#[cfg(target_os = "linux")]
pub use self::linux::*;
#[cfg(any(target_os = "ios", target_os = "macos"))]
pub mod macos {
use libc;
pub const SIGPENDING: libc::c_int = -1;
pub const MSGQUEUE: libc::c_int = -1;
pub const RTPRIO: libc::c_int = -1;
pub const RTTIME: libc::c_int = -1;
pub const AS: libc::c_int = libc::RLIMIT_AS as _;
pub const SBSIZE: libc::c_int = -1;
pub const NICE: libc::c_int = -1;
pub const RSS: libc::c_int = -1;
pub const SWAP: libc::c_int = -1;
pub const KQUEUES: libc::c_int = -1;
pub const NPTS: libc::c_int = -1;
pub const NTHR: libc::c_int = -1;
}
#[cfg(any(target_os = "ios", target_os = "macos"))]
pub use self::macos::*;
#[cfg(target_os = "netbsd")]
pub mod netbsd {
use libc;
pub const SBSIZE: libc::c_int = libc::RLIMIT_SBSIZE;
pub const RSS: libc::c_int = libc::RLIMIT_RSS;
pub const NTHR: libc::c_int = libc::RLIMIT_NTHR;
pub const AS: libc::c_int = libc::RLIMIT_AS as _;
pub const KQUEUES: libc::c_int = -1;
pub const NPTS: libc::c_int = -1;
pub const SWAP: libc::c_int = -1;
pub const NICE: libc::c_int = -1;
pub const SIGPENDING: libc::c_int = -1;
pub const MSGQUEUE: libc::c_int = -1;
pub const RTPRIO: libc::c_int = -1;
pub const RTTIME: libc::c_int = -1;
}
#[cfg(target_os = "netbsd")]
pub use self::netbsd::*;
#[cfg(target_os = "openbsd")]
pub mod openbsd {
use libc;
pub const RSS: libc::c_int = libc::RLIMIT_RSS;
pub const SBSIZE: libc::c_int = -1;
pub const NTHR: libc::c_int = -1;
pub const KQUEUES: libc::c_int = -1;
pub const NPTS: libc::c_int = -1;
pub const SWAP: libc::c_int = -1;
pub const NICE: libc::c_int = -1;
pub const SIGPENDING: libc::c_int = -1;
pub const MSGQUEUE: libc::c_int = -1;
pub const RTPRIO: libc::c_int = -1;
pub const RTTIME: libc::c_int = -1;
pub const AS: libc::c_int = -1;
}
#[cfg(target_os = "openbsd")]
pub use self::openbsd::*;
#[cfg(target_os = "dragonfly")]
pub mod dragonfly {
use libc;
pub const SBSIZE: libc::c_int = libc::RLIMIT_SBSIZE;
pub const RSS: libc::c_int = libc::RLIMIT_RSS;
pub const AS: libc::c_int = libc::RLIMIT_AS;
pub const SWAP: libc::c_int = -1;
pub const KQUEUES: libc::c_int = -1;
pub const NPTS: libc::c_int = -1;
pub const NICE: libc::c_int = -1;
pub const NTHR: libc::c_int = -1;
pub const SIGPENDING: libc::c_int = -1;
pub const MSGQUEUE: libc::c_int = -1;
pub const RTPRIO: libc::c_int = -1;
pub const RTTIME: libc::c_int = -1;
}
#[cfg(target_os = "dragonfly")]
pub use self::dragonfly::*;
#[cfg(target_os = "freebsd")]
pub mod freebsd {
use libc;
pub const SBSIZE: libc::c_int = libc::RLIMIT_SBSIZE;
pub const RSS: libc::c_int = libc::RLIMIT_RSS;
pub const SWAP: libc::c_int = libc::RLIMIT_SWAP;
pub const KQUEUES: libc::c_int = libc::RLIMIT_KQUEUES;
pub const NPTS: libc::c_int = libc::RLIMIT_NPTS;
pub const AS: libc::c_int = libc::RLIMIT_AS;
pub const NICE: libc::c_int = -1;
pub const NTHR: libc::c_int = -1;
pub const SIGPENDING: libc::c_int = -1;
pub const MSGQUEUE: libc::c_int = -1;
pub const RTPRIO: libc::c_int = -1;
pub const RTTIME: libc::c_int = -1;
}
#[cfg(target_os = "freebsd")]
pub use self::freebsd::*;
#[cfg(cygwin)]
pub mod cygwin {
use libc;
pub const SIGPENDING: libc::c_int = -1;
pub const MSGQUEUE: libc::c_int = -1;
pub const RTPRIO: libc::c_int = -1;
pub const RTTIME: libc::c_int = -1;
pub const RSS: libc::c_int = -1;
pub const AS: libc::c_int = libc::RLIMIT_AS as _;
pub const SBSIZE: libc::c_int = -1;
pub const NICE: libc::c_int = -1;
pub const SWAP: libc::c_int = -1;
pub const KQUEUES: libc::c_int = -1;
pub const NPTS: libc::c_int = -1;
pub const NTHR: libc::c_int = -1;
}
#[cfg(cygwin)]
pub use self::cygwin::*;
define_on!(SIGPENDING, RLIMIT_SIGPENDING; "linux");
define_on!(MSGQUEUE, RLIMIT_MSGQUEUE; "linux");
define_on!(RTPRIO, RLIMIT_RTPRIO; "linux");
define_on!(RTTIME, RLIMIT_RTTIME; "linux");
define_on!(RSS, RLIMIT_RSS; "linux", "freebsd", "netbsd", "openbsd", "dragonfly");
define_on!(AS, RLIMIT_AS; "linux", "ios", "macos", "cygwin", "freebsd", "netbsd", "dragonfly");
define_on!(SBSIZE, RLIMIT_SBSIZE; "freebsd", "netbsd", "dragonfly");
define_on!(NICE, RLIMIT_NICE; "linux");
define_on!(KQUEUES, RLIMIT_KQUEUES; "freebsd");
define_on!(SWAP, RLIMIT_SWAP; "freebsd");
define_on!(NPTS, RLIMIT_NPTS; "freebsd");
define_on!(NTHR, RLIMIT_NTHR; "netbsd");
}
/// Calls getrlimit.