#[repr(transparent)]pub struct UnixSeqpacketListener { /* private fields */ }
Expand description
A non-blocking unix domain listener for sequential-packet connections.
Differs from UnixSeqpacketListener
in that accept()
returns non-blocking connection sockets
and doesn’t block if no client connect()
ions are pending.
This type can be used with mio if the mio
feature is enabled:
uds = { version = "x.y", features=["mio"] }
Examples
use uds::nonblocking::{UnixSeqpacketListener, UnixSeqpacketConn};
use std::io::ErrorKind;
let listener = UnixSeqpacketListener::bind("nonblocking_seqpacket_listener.socket")
.expect("Cannot create nonblocking seqpacket listener");
// doesn't block if no connections are waiting:
assert_eq!(listener.accept_unix_addr().unwrap_err().kind(), ErrorKind::WouldBlock);
// returned connections are nonblocking:
let _client = UnixSeqpacketConn::connect("nonblocking_seqpacket_listener.socket").unwrap();
let (conn, _addr) = listener.accept_unix_addr().unwrap();
assert_eq!(conn.recv(&mut[0u8; 20]).unwrap_err().kind(), ErrorKind::WouldBlock);
Registering with mio (v0.7):
use uds::nonblocking::{UnixSeqpacketListener, UnixSeqpacketConn};
use mio_07::{Poll, Events, Token, Interest};
use std::io::ErrorKind;
let listener = UnixSeqpacketListener::bind("seqpacket.sock")
.expect("create nonblocking seqpacket listener");
let mut poll = Poll::new().expect("create mio poll");
let mut events = Events::with_capacity(10);
poll.registry()
.register(&mut &listener, Token(0), Interest::READABLE)
.expect("register unix seqpacket listener with mio");
let _conn = UnixSeqpacketConn::connect("seqpacket.sock")
.expect("create nonblocking seqpacket socket and connect to listener");
poll.poll(&mut events, None).expect("receive mio notifications");
let current_events = events.iter().collect::<Vec<_>>();
assert!(current_events.len() > 0);
assert_eq!(current_events[0].token(), Token(0));
let (_, _addr) = listener.accept_unix_addr().expect("accept connection");
Implementations
impl NonblockingUnixSeqpacketListener
impl NonblockingUnixSeqpacketListener
pub fn bind<P>(path: P) -> Result<NonblockingUnixSeqpacketListener, Error> where
P: AsRef<Path>,
pub fn bind<P>(path: P) -> Result<NonblockingUnixSeqpacketListener, Error> where
P: AsRef<Path>,
Creates a socket that listens for seqpacket connections on the specified socket file.
pub fn bind_unix_addr(
addr: &UnixSocketAddr
) -> Result<NonblockingUnixSeqpacketListener, Error>
pub fn bind_unix_addr(
addr: &UnixSocketAddr
) -> Result<NonblockingUnixSeqpacketListener, Error>
Creates a socket that listens for seqpacket connections on the specified address.
pub fn local_unix_addr(&self) -> Result<UnixSocketAddr, Error>
pub fn local_unix_addr(&self) -> Result<UnixSocketAddr, Error>
Returns the address this listener was bound to.
pub fn accept_unix_addr(
&self
) -> Result<(NonblockingUnixSeqpacketConn, UnixSocketAddr), Error>
pub fn accept_unix_addr(
&self
) -> Result<(NonblockingUnixSeqpacketConn, UnixSocketAddr), Error>
Accepts a non-blocking connection, non-blockingly.
Examples
Doesn’t block if no connections are waiting:
let _ = std::fs::remove_file("nonblocking_seqpacket_listener.socket");
let listener = UnixSeqpacketListener::bind("nonblocking_seqpacket_listener.socket")
.expect("Cannot create nonblocking seqpacket listener");
assert_eq!(listener.accept_unix_addr().unwrap_err().kind(), ErrorKind::WouldBlock);
std::fs::remove_file("nonblocking_seqpacket_listener.socket").unwrap();
pub fn take_error(&self) -> Result<Option<Error>, Error>
pub fn take_error(&self) -> Result<Option<Error>, Error>
Returns the value of the SO_ERROR
option.
This might never produce any errors for listeners. It is therefore
unlikely to be useful, but is provided for parity with mio
s
UnixListener
.
Examples
let listener = uds::nonblocking::UnixSeqpacketListener::bind_unix_addr(
&uds::UnixSocketAddr::new("@nonblocking_take_error").unwrap()
).unwrap();
assert!(listener.accept_unix_addr().is_err());
assert!(listener.take_error().unwrap().is_none());
pub fn try_clone(&self) -> Result<NonblockingUnixSeqpacketListener, Error>
pub fn try_clone(&self) -> Result<NonblockingUnixSeqpacketListener, Error>
Creates a new file descriptor listening for the same connections.
Trait Implementations
impl AsRawFd for NonblockingUnixSeqpacketListener
impl AsRawFd for NonblockingUnixSeqpacketListener
impl Debug for NonblockingUnixSeqpacketListener
impl Debug for NonblockingUnixSeqpacketListener
impl Drop for NonblockingUnixSeqpacketListener
impl Drop for NonblockingUnixSeqpacketListener
impl FromRawFd for NonblockingUnixSeqpacketListener
impl FromRawFd for NonblockingUnixSeqpacketListener
unsafe fn from_raw_fd(fd: i32) -> NonblockingUnixSeqpacketListener
unsafe fn from_raw_fd(fd: i32) -> NonblockingUnixSeqpacketListener
Constructs a new instance of Self
from the given raw file
descriptor. Read more
impl IntoRawFd for NonblockingUnixSeqpacketListener
impl IntoRawFd for NonblockingUnixSeqpacketListener
fn into_raw_fd(self) -> i32
fn into_raw_fd(self) -> i32
Consumes this object, returning the raw underlying file descriptor. Read more
Auto Trait Implementations
impl RefUnwindSafe for NonblockingUnixSeqpacketListener
impl Send for NonblockingUnixSeqpacketListener
impl Sync for NonblockingUnixSeqpacketListener
impl Unpin for NonblockingUnixSeqpacketListener
impl UnwindSafe for NonblockingUnixSeqpacketListener
Blanket Implementations
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