datagram_socket/
lib.rs

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26
27mod buffer;
28mod datagram;
29mod shutdown;
30mod socket_stats;
31
32#[cfg(target_os = "linux")]
33#[macro_use]
34mod mmsg;
35
36pub use self::datagram::*;
37
38#[cfg(target_os = "linux")]
39pub use mmsg::*;
40
41#[cfg(unix)]
42use std::os::fd::AsRawFd;
43
44pub use self::buffer::DgramBuffer;
45pub use self::shutdown::*;
46pub use self::socket_stats::*;
47
48#[cfg(target_os = "linux")]
49pub fn is_nonblocking(fd: &impl AsRawFd) -> std::io::Result<bool> {
50    let flags = unsafe { libc::fcntl(fd.as_raw_fd(), libc::F_GETFL) };
51
52    if flags == -1 {
53        return Err(std::io::Error::last_os_error());
54    }
55
56    if flags & libc::O_NONBLOCK != 0 {
57        Ok(true)
58    } else {
59        Ok(false)
60    }
61}
62
63#[cfg(all(unix, not(target_os = "linux")))]
64pub fn is_nonblocking(_fd: &impl AsRawFd) -> std::io::Result<bool> {
65    Ok(true)
66}
datagram_socket/lib.rs

datagram_socket/
lib.rs
