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getitimer()/setitimer() are missing on Linux #1347

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frol opened this issue May 16, 2019 · 0 comments · May be fixed by #3847
Open

getitimer()/setitimer() are missing on Linux #1347

frol opened this issue May 16, 2019 · 0 comments · May be fixed by #3847
Labels
C-API-request Category: API request E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue. O-linux

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@frol
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frol commented May 16, 2019 

#include <sys/time.h>

int getitimer(int which, struct itimerval *value);
int setitimer(int which, const struct itimerval *restrict value, struct itimerval *restrict ovalue);

man

This is a minimal demo:

let tval = nix::libc::itimerval {
    it_interval: nix::libc::timeval {
        tv_sec: 0,
        tv_usec: 0,
    },
    it_value: nix::libc::timeval {
        tv_sec: 1,
        tv_usec: 0,
    },
};
if unsafe { setitimer(nix::libc::ITIMER_REAL, &tval as *const _, std::ptr::null_mut()) } == -1 {
    panic!("setitimer");
}

let tval2 = nix::libc::itimerval {
    it_interval: nix::libc::timeval {
        tv_sec: 0,
        tv_usec: 0,
    },
    it_value: nix::libc::timeval {
        tv_sec: 0,
        tv_usec: 0,
    },
};
if unsafe { getitimer(nix::libc::ITIMER_REAL, &mut tval as *mut _) } == -1 {
    panic!("getitimer");
}

I have found these two commits: e976c37, bc48202 -- getitimer and setitimer we introduced and dropped for netbsd target. Those definitions seem to work fine for me on Linux.
@JohnTitor JohnTitor added C-API-request Category: API request O-linux labels Oct 15, 2020
@nathaniel-bennett nathaniel-bennett linked a pull request Aug 17, 2024 that will close this issue
Open
@tgross35 tgross35 added E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue. and removed help wanted labels Aug 29, 2024
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C-API-request Category: API request E-easy Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue. O-linux
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Linux: add getitimer()/setitimer() nathaniel-bennett/libc
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@frol @tgross35 @JohnTitor