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#[cfg(any(target_os = "linux", target_os = "android"))]
use sys::time::TimeSpec;
#[cfg(any(target_os = "linux", target_os = "android"))]
use sys::signal::SigSet;
use libc;
use {Errno, Result};
#[repr(C)]
#[derive(Clone, Copy)]
pub struct PollFd {
pollfd: libc::pollfd,
}
impl PollFd {
pub fn new(fd: libc::c_int, events: EventFlags) -> PollFd {
PollFd {
pollfd: libc::pollfd {
fd: fd,
events: events.bits(),
revents: EventFlags::empty().bits(),
},
}
}
pub fn revents(&self) -> Option<EventFlags> {
EventFlags::from_bits(self.pollfd.revents)
}
}
libc_bitflags! {
pub flags EventFlags: libc::c_short {
POLLIN,
POLLPRI,
POLLOUT,
POLLRDNORM,
POLLWRNORM,
POLLRDBAND,
POLLWRBAND,
POLLERR,
POLLHUP,
POLLNVAL,
}
}
pub fn poll(fds: &mut [PollFd], timeout: libc::c_int) -> Result<libc::c_int> {
let res = unsafe {
libc::poll(fds.as_mut_ptr() as *mut libc::pollfd,
fds.len() as libc::nfds_t,
timeout)
};
Errno::result(res)
}
#[cfg(any(target_os = "linux", target_os = "android"))]
pub fn ppoll(fds: &mut [PollFd], timeout: TimeSpec, sigmask: SigSet) -> Result<libc::c_int> {
let res = unsafe {
libc::ppoll(fds.as_mut_ptr() as *mut libc::pollfd,
fds.len() as libc::nfds_t,
timeout.as_ref(),
sigmask.as_ref())
};
Errno::result(res)
}
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