Source code
Revision control
Copy as Markdown
Other Tools
use nix::sys::select::*;
use nix::sys::signal::SigSet;
use nix::sys::time::{TimeSpec, TimeVal, TimeValLike};
use nix::unistd::{pipe, write};
use std::os::unix::io::{AsFd, AsRawFd, BorrowedFd, RawFd};
#[test]
pub fn test_pselect() {
let _mtx = crate::SIGNAL_MTX.lock();
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.as_fd());
fd_set.insert(r2.as_fd());
let timeout = TimeSpec::seconds(10);
let sigmask = SigSet::empty();
assert_eq!(
1,
pselect(None, &mut fd_set, None, None, &timeout, &sigmask).unwrap()
);
assert!(fd_set.contains(r1.as_fd()));
assert!(!fd_set.contains(r2.as_fd()));
}
#[test]
pub fn test_pselect_nfds2() {
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.as_fd());
fd_set.insert(r2.as_fd());
let timeout = TimeSpec::seconds(10);
assert_eq!(
1,
pselect(
std::cmp::max(r1.as_raw_fd(), r2.as_raw_fd()) + 1,
&mut fd_set,
None,
None,
&timeout,
None
)
.unwrap()
);
assert!(fd_set.contains(r1.as_fd()));
assert!(!fd_set.contains(r2.as_fd()));
}
macro_rules! generate_fdset_bad_fd_tests {
($fd:expr, $($method:ident),* $(,)?) => {
$(
#[test]
#[should_panic]
fn $method() {
let bad_fd = unsafe{BorrowedFd::borrow_raw($fd)};
FdSet::new().$method(bad_fd);
}
)*
}
}
mod test_fdset_too_large_fd {
use super::*;
generate_fdset_bad_fd_tests!(
FD_SETSIZE.try_into().unwrap(),
insert,
remove,
contains,
);
}
#[test]
fn fdset_insert() {
let mut fd_set = FdSet::new();
for i in 0..FD_SETSIZE {
let borrowed_i = unsafe { BorrowedFd::borrow_raw(i as RawFd) };
assert!(!fd_set.contains(borrowed_i));
}
let fd_seven = unsafe { BorrowedFd::borrow_raw(7) };
fd_set.insert(fd_seven);
assert!(fd_set.contains(fd_seven));
}
#[test]
fn fdset_remove() {
let mut fd_set = FdSet::new();
for i in 0..FD_SETSIZE {
let borrowed_i = unsafe { BorrowedFd::borrow_raw(i as RawFd) };
assert!(!fd_set.contains(borrowed_i));
}
let fd_seven = unsafe { BorrowedFd::borrow_raw(7) };
fd_set.insert(fd_seven);
fd_set.remove(fd_seven);
for i in 0..FD_SETSIZE {
let borrowed_i = unsafe { BorrowedFd::borrow_raw(i as RawFd) };
assert!(!fd_set.contains(borrowed_i));
}
}
#[test]
#[allow(non_snake_case)]
fn fdset_clear() {
let mut fd_set = FdSet::new();
let fd_one = unsafe { BorrowedFd::borrow_raw(1) };
let fd_FD_SETSIZE_divided_by_two =
unsafe { BorrowedFd::borrow_raw((FD_SETSIZE / 2) as RawFd) };
let fd_FD_SETSIZE_minus_one =
unsafe { BorrowedFd::borrow_raw((FD_SETSIZE - 1) as RawFd) };
fd_set.insert(fd_one);
fd_set.insert(fd_FD_SETSIZE_divided_by_two);
fd_set.insert(fd_FD_SETSIZE_minus_one);
fd_set.clear();
for i in 0..FD_SETSIZE {
let borrowed_i = unsafe { BorrowedFd::borrow_raw(i as RawFd) };
assert!(!fd_set.contains(borrowed_i));
}
}
#[test]
fn fdset_highest() {
let mut set = FdSet::new();
assert_eq!(
set.highest().map(|borrowed_fd| borrowed_fd.as_raw_fd()),
None
);
let fd_zero = unsafe { BorrowedFd::borrow_raw(0) };
let fd_ninety = unsafe { BorrowedFd::borrow_raw(90) };
set.insert(fd_zero);
assert_eq!(
set.highest().map(|borrowed_fd| borrowed_fd.as_raw_fd()),
Some(0)
);
set.insert(fd_ninety);
assert_eq!(
set.highest().map(|borrowed_fd| borrowed_fd.as_raw_fd()),
Some(90)
);
set.remove(fd_zero);
assert_eq!(
set.highest().map(|borrowed_fd| borrowed_fd.as_raw_fd()),
Some(90)
);
set.remove(fd_ninety);
assert_eq!(
set.highest().map(|borrowed_fd| borrowed_fd.as_raw_fd()),
None
);
let fd_four = unsafe { BorrowedFd::borrow_raw(4) };
let fd_five = unsafe { BorrowedFd::borrow_raw(5) };
let fd_seven = unsafe { BorrowedFd::borrow_raw(7) };
set.insert(fd_four);
set.insert(fd_five);
set.insert(fd_seven);
assert_eq!(
set.highest().map(|borrowed_fd| borrowed_fd.as_raw_fd()),
Some(7)
);
}
#[test]
fn fdset_fds() {
let mut set = FdSet::new();
let fd_zero = unsafe { BorrowedFd::borrow_raw(0) };
let fd_ninety = unsafe { BorrowedFd::borrow_raw(90) };
assert_eq!(
set.fds(None)
.map(|borrowed_fd| borrowed_fd.as_raw_fd())
.collect::<Vec<_>>(),
vec![]
);
set.insert(fd_zero);
assert_eq!(
set.fds(None)
.map(|borrowed_fd| borrowed_fd.as_raw_fd())
.collect::<Vec<_>>(),
vec![0]
);
set.insert(fd_ninety);
assert_eq!(
set.fds(None)
.map(|borrowed_fd| borrowed_fd.as_raw_fd())
.collect::<Vec<_>>(),
vec![0, 90]
);
// highest limit
assert_eq!(
set.fds(Some(89))
.map(|borrowed_fd| borrowed_fd.as_raw_fd())
.collect::<Vec<_>>(),
vec![0]
);
assert_eq!(
set.fds(Some(90))
.map(|borrowed_fd| borrowed_fd.as_raw_fd())
.collect::<Vec<_>>(),
vec![0, 90]
);
}
#[test]
fn test_select() {
let (r1, w1) = pipe().unwrap();
let (r2, _w2) = pipe().unwrap();
write(&w1, b"hi!").unwrap();
let mut fd_set = FdSet::new();
fd_set.insert(r1.as_fd());
fd_set.insert(r2.as_fd());
let mut timeout = TimeVal::seconds(10);
assert_eq!(
1,
select(None, &mut fd_set, None, None, &mut timeout).unwrap()
);
assert!(fd_set.contains(r1.as_fd()));
assert!(!fd_set.contains(r2.as_fd()));
}
#[test]
fn test_select_nfds() {
let (r1, w1) = pipe().unwrap();
let (r2, _w2) = pipe().unwrap();
write(&w1, b"hi!").unwrap();
let mut fd_set = FdSet::new();
fd_set.insert(r1.as_fd());
fd_set.insert(r2.as_fd());
let mut timeout = TimeVal::seconds(10);
{
assert_eq!(
1,
select(
Some(
fd_set
.highest()
.map(|borrowed_fd| borrowed_fd.as_raw_fd())
.unwrap()
+ 1
),
&mut fd_set,
None,
None,
&mut timeout
)
.unwrap()
);
}
assert!(fd_set.contains(r1.as_fd()));
assert!(!fd_set.contains(r2.as_fd()));
}
#[test]
fn test_select_nfds2() {
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.as_fd());
fd_set.insert(r2.as_fd());
let mut timeout = TimeVal::seconds(10);
assert_eq!(
1,
select(
std::cmp::max(r1.as_raw_fd(), r2.as_raw_fd()) + 1,
&mut fd_set,
None,
None,
&mut timeout
)
.unwrap()
);
assert!(fd_set.contains(r1.as_fd()));
assert!(!fd_set.contains(r2.as_fd()));
}