1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
use libc::c_int;
use {Errno, Result};
pub use self::ffi::PollFd;
pub use self::ffi::consts::*;
mod ffi {
use libc::c_int;
pub use self::consts::*;
#[derive(Clone, Copy, Debug)]
#[repr(C)]
pub struct PollFd {
pub fd: c_int,
pub events: EventFlags,
pub revents: EventFlags
}
#[cfg(target_os = "linux")]
pub mod consts {
use libc::{c_short, c_ulong};
bitflags! {
flags EventFlags: c_short {
const POLLIN = 0x001,
const POLLPRI = 0x002,
const POLLOUT = 0x004,
const POLLRDNORM = 0x040,
const POLLWRNORM = 0x100,
const POLLRDBAND = 0x080,
const POLLWRBAND = 0x200,
const POLLERR = 0x008,
const POLLHUP = 0x010,
const POLLNVAL = 0x020,
}
}
pub type nfds_t = c_ulong;
}
#[cfg(target_os = "macos")]
pub mod consts {
use libc::{c_short, c_uint};
bitflags! {
flags EventFlags: c_short {
const POLLIN = 0x0001,
const POLLPRI = 0x0002,
const POLLOUT = 0x0004,
const POLLRDNORM = 0x0040,
const POLLWRNORM = 0x0004,
const POLLRDBAND = 0x0080,
const POLLWRBAND = 0x0100,
const POLLERR = 0x0008,
const POLLHUP = 0x0010,
const POLLNVAL = 0x0020,
}
}
pub type nfds_t = c_uint;
}
#[allow(improper_ctypes)]
extern {
pub fn poll(fds: *mut PollFd, nfds: nfds_t, timeout: c_int) -> c_int;
}
}
pub fn poll(fds: &mut [PollFd], timeout: c_int) -> Result<c_int> {
let res = unsafe {
ffi::poll(fds.as_mut_ptr(), fds.len() as ffi::nfds_t, timeout)
};
Errno::result(res)
}
|
