| Andrew Walbran | 12f6140 | 2020-10-14 11:10:53 +0100 | [diff] [blame] | 1 | use libc; |
| 2 | use std::os::unix::io::RawFd; |
| 3 | use crate::Result; |
| 4 | use crate::errno::Errno; |
| 5 | |
| 6 | libc_bitflags! { |
| 7 | pub struct EfdFlags: libc::c_int { |
| 8 | EFD_CLOEXEC; // Since Linux 2.6.27 |
| 9 | EFD_NONBLOCK; // Since Linux 2.6.27 |
| 10 | EFD_SEMAPHORE; // Since Linux 2.6.30 |
| 11 | } |
| 12 | } |
| 13 | |
| 14 | pub fn eventfd(initval: libc::c_uint, flags: EfdFlags) -> Result<RawFd> { |
| 15 | let res = unsafe { libc::eventfd(initval, flags.bits()) }; |
| 16 | |
| 17 | Errno::result(res).map(|r| r as RawFd) |
| 18 | } |