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nice little code simplification, included already in the libc

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for all unixes
This commit is contained in:
David CARLIER
2021-08-09 21:56:12 +01:00
parent 966cf79747
commit 6e2f6b2845
1 changed files with 3 additions and 11 deletions
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src/uu/nice/src/nice.rs
+3 -11
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@@ -10,21 +10,13 @@
#[macro_use]
extern crate uucore;
use libc::{c_char, c_int, execvp};
use libc::{c_char, c_int, execvp, PRIO_PROCESS};
use std::ffi::CString;
use std::io::Error;
use std::ptr;
use clap::{crate_version, App, AppSettings, Arg};
// XXX: PRIO_PROCESS is 0 on at least FreeBSD and Linux. Don't know about Mac OS X.
const PRIO_PROCESS: c_int = 0;
extern "C" {
fn getpriority(which: c_int, who: c_int) -> c_int;
fn setpriority(which: c_int, who: c_int, prio: c_int) -> c_int;
}
pub mod options {
pub static ADJUSTMENT: &str = "adjustment";
pub static COMMAND: &str = "COMMAND";
@@ -50,7 +42,7 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
let mut niceness = unsafe {
nix::errno::Errno::clear();
getpriority(PRIO_PROCESS, 0)
libc::getpriority(PRIO_PROCESS, 0)
};
if Error::last_os_error().raw_os_error().unwrap() != 0 {
show_error!("getpriority: {}", Error::last_os_error());
@@ -84,7 +76,7 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
};
niceness += adjustment;
if unsafe { setpriority(PRIO_PROCESS, 0, niceness) } == -1 {
if unsafe { libc::setpriority(PRIO_PROCESS, 0, niceness) } == -1 {
show_warning!("setpriority: {}", Error::last_os_error());
}