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eventfd: Follow nix conventions #383

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Jul 4, 2016
Merged

eventfd: Follow nix conventions #383

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26 changes: 8 additions & 18 deletions src/sys/eventfd.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,26 +2,16 @@ use libc;
use std::os::unix::io::RawFd;
use {Errno, Result};

bitflags!(
flags EventFdFlag: libc::c_int {
const EFD_CLOEXEC = 0o2000000, // Since Linux 2.6.27
const EFD_NONBLOCK = 0o0004000, // Since Linux 2.6.27
const EFD_SEMAPHORE = 0o0000001, // Since Linux 2.6.30
}
);

mod ffi {
use libc;

extern {
pub fn eventfd(initval: libc::c_uint, flags: libc::c_int) -> libc::c_int;
libc_bitflags! {
flags EfdFlags: libc::c_int {
const EFD_CLOEXEC, // Since Linux 2.6.27
const EFD_NONBLOCK, // Since Linux 2.6.27
const EFD_SEMAPHORE, // Since Linux 2.6.30
}
}

pub fn eventfd(initval: usize, flags: EventFdFlag) -> Result<RawFd> {
unsafe {
let res = ffi::eventfd(initval as libc::c_uint, flags.bits());
pub fn eventfd(initval: libc::c_uint, flags: EfdFlags) -> Result<RawFd> {
let res = unsafe { libc::eventfd(initval, flags.bits()) };

Errno::result(res).map(|r| r as RawFd)
}
Errno::result(res).map(|r| r as RawFd)
}