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use nix::sys::select::{FdSet, FD_SETSIZE, select};
use nix::sys::time::{TimeVal, TimeValLike};
use nix::unistd::{write, pipe};
#[test]
fn test_fdset() {
let mut fd_set = FdSet::new();
for i in 0..FD_SETSIZE {
assert!(!fd_set.contains(i));
}
fd_set.insert(7);
assert!(fd_set.contains(7));
fd_set.remove(7);
for i in 0..FD_SETSIZE {
assert!(!fd_set.contains(i));
}
fd_set.insert(1);
fd_set.insert(FD_SETSIZE / 2);
fd_set.insert(FD_SETSIZE - 1);
fd_set.clear();
for i in 0..FD_SETSIZE {
assert!(!fd_set.contains(i));
}
}
// powerpc-unknown-linux-gnu currently fails on the first `assert_eq` because
// `select()` returns a 0 instead of a 1. Since this test has only been run on
// qemu, it's unclear if this is a OS or qemu bug. Just disable it on that arch
// for now.
// FIXME: Fix tests for powerpc and mips
// FIXME: Add a link to an upstream qemu bug if there is one
#[test]
#[cfg_attr(any(target_arch = "powerpc", target_arch = "mips"), ignore)]
fn test_select() {
let (r1, w1) = pipe().unwrap();
write(w1, b"hi!").unwrap();
let (r2, _w2) = pipe().unwrap();
let mut fd_set = FdSet::new();
fd_set.insert(r1);
fd_set.insert(r2);
let mut timeout = TimeVal::seconds(10);
assert_eq!(1, select(r2 + 1,
Some(&mut fd_set),
None,
None,
Some(&mut timeout)).unwrap());
assert!(fd_set.contains(r1));
assert!(!fd_set.contains(r2));
}
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