| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use fmt; |
| use io::{self, Error, ErrorKind}; |
| use net::{ToSocketAddrs, SocketAddr, Ipv4Addr, Ipv6Addr}; |
| use sys_common::net as net_imp; |
| use sys_common::{AsInner, FromInner, IntoInner}; |
| use time::Duration; |
| |
| /// A User Datagram Protocol socket. |
| /// |
| /// This is an implementation of a bound UDP socket. This supports both IPv4 and |
| /// IPv6 addresses, and there is no corresponding notion of a server because UDP |
| /// is a datagram protocol. |
| /// |
| /// # Examples |
| /// |
| /// ```no_run |
| /// use std::net::UdpSocket; |
| /// |
| /// # fn foo() -> std::io::Result<()> { |
| /// { |
| /// let mut socket = try!(UdpSocket::bind("127.0.0.1:34254")); |
| /// |
| /// // read from the socket |
| /// let mut buf = [0; 10]; |
| /// let (amt, src) = try!(socket.recv_from(&mut buf)); |
| /// |
| /// // send a reply to the socket we received data from |
| /// let buf = &mut buf[..amt]; |
| /// buf.reverse(); |
| /// try!(socket.send_to(buf, &src)); |
| /// # Ok(()) |
| /// } // the socket is closed here |
| /// # } |
| /// ``` |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub struct UdpSocket(net_imp::UdpSocket); |
| |
| impl UdpSocket { |
| /// Creates a UDP socket from the given address. |
| /// |
| /// The address type can be any implementor of `ToSocketAddr` trait. See |
| /// its documentation for concrete examples. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn bind<A: ToSocketAddrs>(addr: A) -> io::Result<UdpSocket> { |
| super::each_addr(addr, net_imp::UdpSocket::bind).map(UdpSocket) |
| } |
| |
| /// Receives data from the socket. On success, returns the number of bytes |
| /// read and the address from whence the data came. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn recv_from(&self, buf: &mut [u8]) -> io::Result<(usize, SocketAddr)> { |
| self.0.recv_from(buf) |
| } |
| |
| /// Sends data on the socket to the given address. On success, returns the |
| /// number of bytes written. |
| /// |
| /// Address type can be any implementor of `ToSocketAddrs` trait. See its |
| /// documentation for concrete examples. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn send_to<A: ToSocketAddrs>(&self, buf: &[u8], addr: A) |
| -> io::Result<usize> { |
| match addr.to_socket_addrs()?.next() { |
| Some(addr) => self.0.send_to(buf, &addr), |
| None => Err(Error::new(ErrorKind::InvalidInput, |
| "no addresses to send data to")), |
| } |
| } |
| |
| /// Returns the socket address that this socket was created from. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn local_addr(&self) -> io::Result<SocketAddr> { |
| self.0.socket_addr() |
| } |
| |
| /// Creates a new independently owned handle to the underlying socket. |
| /// |
| /// The returned `UdpSocket` is a reference to the same socket that this |
| /// object references. Both handles will read and write the same port, and |
| /// options set on one socket will be propagated to the other. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn try_clone(&self) -> io::Result<UdpSocket> { |
| self.0.duplicate().map(UdpSocket) |
| } |
| |
| /// Sets the read timeout to the timeout specified. |
| /// |
| /// If the value specified is `None`, then `read` calls will block |
| /// indefinitely. It is an error to pass the zero `Duration` to this |
| /// method. |
| /// |
| /// # Note |
| /// |
| /// Platforms may return a different error code whenever a read times out as |
| /// a result of setting this option. For example Unix typically returns an |
| /// error of the kind `WouldBlock`, but Windows may return `TimedOut`. |
| #[stable(feature = "socket_timeout", since = "1.4.0")] |
| pub fn set_read_timeout(&self, dur: Option<Duration>) -> io::Result<()> { |
| self.0.set_read_timeout(dur) |
| } |
| |
| /// Sets the write timeout to the timeout specified. |
| /// |
| /// If the value specified is `None`, then `write` calls will block |
| /// indefinitely. It is an error to pass the zero `Duration` to this |
| /// method. |
| /// |
| /// # Note |
| /// |
| /// Platforms may return a different error code whenever a write times out |
| /// as a result of setting this option. For example Unix typically returns |
| /// an error of the kind `WouldBlock`, but Windows may return `TimedOut`. |
| #[stable(feature = "socket_timeout", since = "1.4.0")] |
| pub fn set_write_timeout(&self, dur: Option<Duration>) -> io::Result<()> { |
| self.0.set_write_timeout(dur) |
| } |
| |
| /// Returns the read timeout of this socket. |
| /// |
| /// If the timeout is `None`, then `read` calls will block indefinitely. |
| #[stable(feature = "socket_timeout", since = "1.4.0")] |
| pub fn read_timeout(&self) -> io::Result<Option<Duration>> { |
| self.0.read_timeout() |
| } |
| |
| /// Returns the write timeout of this socket. |
| /// |
| /// If the timeout is `None`, then `write` calls will block indefinitely. |
| #[stable(feature = "socket_timeout", since = "1.4.0")] |
| pub fn write_timeout(&self) -> io::Result<Option<Duration>> { |
| self.0.write_timeout() |
| } |
| |
| /// Sets the value of the `SO_BROADCAST` option for this socket. |
| /// |
| /// When enabled, this socket is allowed to send packets to a broadcast |
| /// address. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn set_broadcast(&self, broadcast: bool) -> io::Result<()> { |
| self.0.set_broadcast(broadcast) |
| } |
| |
| /// Gets the value of the `SO_BROADCAST` option for this socket. |
| /// |
| /// For more information about this option, see |
| /// [`set_broadcast`][link]. |
| /// |
| /// [link]: #tymethod.set_broadcast |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn broadcast(&self) -> io::Result<bool> { |
| self.0.broadcast() |
| } |
| |
| /// Sets the value of the `IP_MULTICAST_LOOP` option for this socket. |
| /// |
| /// If enabled, multicast packets will be looped back to the local socket. |
| /// Note that this may not have any affect on IPv6 sockets. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn set_multicast_loop_v4(&self, multicast_loop_v4: bool) -> io::Result<()> { |
| self.0.set_multicast_loop_v4(multicast_loop_v4) |
| } |
| |
| /// Gets the value of the `IP_MULTICAST_LOOP` option for this socket. |
| /// |
| /// For more information about this option, see |
| /// [`set_multicast_loop_v4`][link]. |
| /// |
| /// [link]: #tymethod.set_multicast_loop_v4 |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn multicast_loop_v4(&self) -> io::Result<bool> { |
| self.0.multicast_loop_v4() |
| } |
| |
| /// Sets the value of the `IP_MULTICAST_TTL` option for this socket. |
| /// |
| /// Indicates the time-to-live value of outgoing multicast packets for |
| /// this socket. The default value is 1 which means that multicast packets |
| /// don't leave the local network unless explicitly requested. |
| /// |
| /// Note that this may not have any affect on IPv6 sockets. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn set_multicast_ttl_v4(&self, multicast_ttl_v4: u32) -> io::Result<()> { |
| self.0.set_multicast_ttl_v4(multicast_ttl_v4) |
| } |
| |
| /// Gets the value of the `IP_MULTICAST_TTL` option for this socket. |
| /// |
| /// For more information about this option, see |
| /// [`set_multicast_ttl_v4`][link]. |
| /// |
| /// [link]: #tymethod.set_multicast_ttl_v4 |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn multicast_ttl_v4(&self) -> io::Result<u32> { |
| self.0.multicast_ttl_v4() |
| } |
| |
| /// Sets the value of the `IPV6_MULTICAST_LOOP` option for this socket. |
| /// |
| /// Controls whether this socket sees the multicast packets it sends itself. |
| /// Note that this may not have any affect on IPv4 sockets. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn set_multicast_loop_v6(&self, multicast_loop_v6: bool) -> io::Result<()> { |
| self.0.set_multicast_loop_v6(multicast_loop_v6) |
| } |
| |
| /// Gets the value of the `IPV6_MULTICAST_LOOP` option for this socket. |
| /// |
| /// For more information about this option, see |
| /// [`set_multicast_loop_v6`][link]. |
| /// |
| /// [link]: #tymethod.set_multicast_loop_v6 |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn multicast_loop_v6(&self) -> io::Result<bool> { |
| self.0.multicast_loop_v6() |
| } |
| |
| /// Sets the value for the `IP_TTL` option on this socket. |
| /// |
| /// This value sets the time-to-live field that is used in every packet sent |
| /// from this socket. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn set_ttl(&self, ttl: u32) -> io::Result<()> { |
| self.0.set_ttl(ttl) |
| } |
| |
| /// Gets the value of the `IP_TTL` option for this socket. |
| /// |
| /// For more information about this option, see [`set_ttl`][link]. |
| /// |
| /// [link]: #tymethod.set_ttl |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn ttl(&self) -> io::Result<u32> { |
| self.0.ttl() |
| } |
| |
| /// Sets the value for the `IPV6_V6ONLY` option on this socket. |
| /// |
| /// If this is set to `true` then the socket is restricted to sending and |
| /// receiving IPv6 packets only. If this is the case, an IPv4 and an IPv6 |
| /// application can each bind the same port at the same time. |
| /// |
| /// If this is set to `false` then the socket can be used to send and |
| /// receive packets from an IPv4-mapped IPv6 address. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn set_only_v6(&self, only_v6: bool) -> io::Result<()> { |
| self.0.set_only_v6(only_v6) |
| } |
| |
| /// Gets the value of the `IPV6_V6ONLY` option for this socket. |
| /// |
| /// For more information about this option, see [`set_only_v6`][link]. |
| /// |
| /// [link]: #tymethod.set_only_v6 |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn only_v6(&self) -> io::Result<bool> { |
| self.0.only_v6() |
| } |
| |
| /// Executes an operation of the `IP_ADD_MEMBERSHIP` type. |
| /// |
| /// This function specifies a new multicast group for this socket to join. |
| /// The address must be a valid multicast address, and `interface` is the |
| /// address of the local interface with which the system should join the |
| /// multicast group. If it's equal to `INADDR_ANY` then an appropriate |
| /// interface is chosen by the system. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn join_multicast_v4(&self, multiaddr: &Ipv4Addr, interface: &Ipv4Addr) -> io::Result<()> { |
| self.0.join_multicast_v4(multiaddr, interface) |
| } |
| |
| /// Executes an operation of the `IPV6_ADD_MEMBERSHIP` type. |
| /// |
| /// This function specifies a new multicast group for this socket to join. |
| /// The address must be a valid multicast address, and `interface` is the |
| /// index of the interface to join/leave (or 0 to indicate any interface). |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn join_multicast_v6(&self, multiaddr: &Ipv6Addr, interface: u32) -> io::Result<()> { |
| self.0.join_multicast_v6(multiaddr, interface) |
| } |
| |
| /// Executes an operation of the `IP_DROP_MEMBERSHIP` type. |
| /// |
| /// For more information about this option, see |
| /// [`join_multicast_v4`][link]. |
| /// |
| /// [link]: #tymethod.join_multicast_v4 |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn leave_multicast_v4(&self, multiaddr: &Ipv4Addr, interface: &Ipv4Addr) -> io::Result<()> { |
| self.0.leave_multicast_v4(multiaddr, interface) |
| } |
| |
| /// Executes an operation of the `IPV6_DROP_MEMBERSHIP` type. |
| /// |
| /// For more information about this option, see |
| /// [`join_multicast_v6`][link]. |
| /// |
| /// [link]: #tymethod.join_multicast_v6 |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn leave_multicast_v6(&self, multiaddr: &Ipv6Addr, interface: u32) -> io::Result<()> { |
| self.0.leave_multicast_v6(multiaddr, interface) |
| } |
| |
| /// Get the value of the `SO_ERROR` option on this socket. |
| /// |
| /// This will retrieve the stored error in the underlying socket, clearing |
| /// the field in the process. This can be useful for checking errors between |
| /// calls. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn take_error(&self) -> io::Result<Option<io::Error>> { |
| self.0.take_error() |
| } |
| |
| /// Connects this UDP socket to a remote address, allowing the `send` and |
| /// `recv` syscalls to be used to send data and also applies filters to only |
| /// receive data from the specified address. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn connect<A: ToSocketAddrs>(&self, addr: A) -> io::Result<()> { |
| super::each_addr(addr, |addr| self.0.connect(addr)) |
| } |
| |
| /// Sends data on the socket to the remote address to which it is connected. |
| /// |
| /// The `connect` method will connect this socket to a remote address. This |
| /// method will fail if the socket is not connected. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn send(&self, buf: &[u8]) -> io::Result<usize> { |
| self.0.send(buf) |
| } |
| |
| /// Receives data on the socket from the remote address to which it is |
| /// connected. |
| /// |
| /// The `connect` method will connect this socket to a remote address. This |
| /// method will fail if the socket is not connected. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn recv(&self, buf: &mut [u8]) -> io::Result<usize> { |
| self.0.recv(buf) |
| } |
| |
| /// Moves this TCP stream into or out of nonblocking mode. |
| /// |
| /// On Unix this corresponds to calling fcntl, and on Windows this |
| /// corresponds to calling ioctlsocket. |
| #[stable(feature = "net2_mutators", since = "1.9.0")] |
| pub fn set_nonblocking(&self, nonblocking: bool) -> io::Result<()> { |
| self.0.set_nonblocking(nonblocking) |
| } |
| } |
| |
| impl AsInner<net_imp::UdpSocket> for UdpSocket { |
| fn as_inner(&self) -> &net_imp::UdpSocket { &self.0 } |
| } |
| |
| impl FromInner<net_imp::UdpSocket> for UdpSocket { |
| fn from_inner(inner: net_imp::UdpSocket) -> UdpSocket { UdpSocket(inner) } |
| } |
| |
| impl IntoInner<net_imp::UdpSocket> for UdpSocket { |
| fn into_inner(self) -> net_imp::UdpSocket { self.0 } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl fmt::Debug for UdpSocket { |
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
| self.0.fmt(f) |
| } |
| } |
| |
| #[cfg(test)] |
| mod tests { |
| use prelude::v1::*; |
| |
| use io::ErrorKind; |
| use net::*; |
| use net::test::{next_test_ip4, next_test_ip6}; |
| use sync::mpsc::channel; |
| use sys_common::AsInner; |
| use time::{Instant, Duration}; |
| use thread; |
| |
| fn each_ip(f: &mut FnMut(SocketAddr, SocketAddr)) { |
| f(next_test_ip4(), next_test_ip4()); |
| f(next_test_ip6(), next_test_ip6()); |
| } |
| |
| macro_rules! t { |
| ($e:expr) => { |
| match $e { |
| Ok(t) => t, |
| Err(e) => panic!("received error for `{}`: {}", stringify!($e), e), |
| } |
| } |
| } |
| |
| #[test] |
| fn bind_error() { |
| match UdpSocket::bind("1.1.1.1:9999") { |
| Ok(..) => panic!(), |
| Err(e) => { |
| assert_eq!(e.kind(), ErrorKind::AddrNotAvailable) |
| } |
| } |
| } |
| |
| #[test] |
| fn socket_smoke_test_ip4() { |
| each_ip(&mut |server_ip, client_ip| { |
| let (tx1, rx1) = channel(); |
| let (tx2, rx2) = channel(); |
| |
| let _t = thread::spawn(move|| { |
| let client = t!(UdpSocket::bind(&client_ip)); |
| rx1.recv().unwrap(); |
| t!(client.send_to(&[99], &server_ip)); |
| tx2.send(()).unwrap(); |
| }); |
| |
| let server = t!(UdpSocket::bind(&server_ip)); |
| tx1.send(()).unwrap(); |
| let mut buf = [0]; |
| let (nread, src) = t!(server.recv_from(&mut buf)); |
| assert_eq!(nread, 1); |
| assert_eq!(buf[0], 99); |
| assert_eq!(src, client_ip); |
| rx2.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn socket_name_ip4() { |
| each_ip(&mut |addr, _| { |
| let server = t!(UdpSocket::bind(&addr)); |
| assert_eq!(addr, t!(server.local_addr())); |
| }) |
| } |
| |
| #[test] |
| fn udp_clone_smoke() { |
| each_ip(&mut |addr1, addr2| { |
| let sock1 = t!(UdpSocket::bind(&addr1)); |
| let sock2 = t!(UdpSocket::bind(&addr2)); |
| |
| let _t = thread::spawn(move|| { |
| let mut buf = [0, 0]; |
| assert_eq!(sock2.recv_from(&mut buf).unwrap(), (1, addr1)); |
| assert_eq!(buf[0], 1); |
| t!(sock2.send_to(&[2], &addr1)); |
| }); |
| |
| let sock3 = t!(sock1.try_clone()); |
| |
| let (tx1, rx1) = channel(); |
| let (tx2, rx2) = channel(); |
| let _t = thread::spawn(move|| { |
| rx1.recv().unwrap(); |
| t!(sock3.send_to(&[1], &addr2)); |
| tx2.send(()).unwrap(); |
| }); |
| tx1.send(()).unwrap(); |
| let mut buf = [0, 0]; |
| assert_eq!(sock1.recv_from(&mut buf).unwrap(), (1, addr2)); |
| rx2.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn udp_clone_two_read() { |
| each_ip(&mut |addr1, addr2| { |
| let sock1 = t!(UdpSocket::bind(&addr1)); |
| let sock2 = t!(UdpSocket::bind(&addr2)); |
| let (tx1, rx) = channel(); |
| let tx2 = tx1.clone(); |
| |
| let _t = thread::spawn(move|| { |
| t!(sock2.send_to(&[1], &addr1)); |
| rx.recv().unwrap(); |
| t!(sock2.send_to(&[2], &addr1)); |
| rx.recv().unwrap(); |
| }); |
| |
| let sock3 = t!(sock1.try_clone()); |
| |
| let (done, rx) = channel(); |
| let _t = thread::spawn(move|| { |
| let mut buf = [0, 0]; |
| t!(sock3.recv_from(&mut buf)); |
| tx2.send(()).unwrap(); |
| done.send(()).unwrap(); |
| }); |
| let mut buf = [0, 0]; |
| t!(sock1.recv_from(&mut buf)); |
| tx1.send(()).unwrap(); |
| |
| rx.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn udp_clone_two_write() { |
| each_ip(&mut |addr1, addr2| { |
| let sock1 = t!(UdpSocket::bind(&addr1)); |
| let sock2 = t!(UdpSocket::bind(&addr2)); |
| |
| let (tx, rx) = channel(); |
| let (serv_tx, serv_rx) = channel(); |
| |
| let _t = thread::spawn(move|| { |
| let mut buf = [0, 1]; |
| rx.recv().unwrap(); |
| t!(sock2.recv_from(&mut buf)); |
| serv_tx.send(()).unwrap(); |
| }); |
| |
| let sock3 = t!(sock1.try_clone()); |
| |
| let (done, rx) = channel(); |
| let tx2 = tx.clone(); |
| let _t = thread::spawn(move|| { |
| match sock3.send_to(&[1], &addr2) { |
| Ok(..) => { let _ = tx2.send(()); } |
| Err(..) => {} |
| } |
| done.send(()).unwrap(); |
| }); |
| match sock1.send_to(&[2], &addr2) { |
| Ok(..) => { let _ = tx.send(()); } |
| Err(..) => {} |
| } |
| drop(tx); |
| |
| rx.recv().unwrap(); |
| serv_rx.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn debug() { |
| let name = if cfg!(windows) {"socket"} else {"fd"}; |
| let socket_addr = next_test_ip4(); |
| |
| let udpsock = t!(UdpSocket::bind(&socket_addr)); |
| let udpsock_inner = udpsock.0.socket().as_inner(); |
| let compare = format!("UdpSocket {{ addr: {:?}, {}: {:?} }}", |
| socket_addr, name, udpsock_inner); |
| assert_eq!(format!("{:?}", udpsock), compare); |
| } |
| |
| // FIXME: re-enabled bitrig/openbsd/netbsd tests once their socket timeout code |
| // no longer has rounding errors. |
| #[cfg_attr(any(target_os = "bitrig", target_os = "netbsd", target_os = "openbsd"), ignore)] |
| #[test] |
| fn timeouts() { |
| let addr = next_test_ip4(); |
| |
| let stream = t!(UdpSocket::bind(&addr)); |
| let dur = Duration::new(15410, 0); |
| |
| assert_eq!(None, t!(stream.read_timeout())); |
| |
| t!(stream.set_read_timeout(Some(dur))); |
| assert_eq!(Some(dur), t!(stream.read_timeout())); |
| |
| assert_eq!(None, t!(stream.write_timeout())); |
| |
| t!(stream.set_write_timeout(Some(dur))); |
| assert_eq!(Some(dur), t!(stream.write_timeout())); |
| |
| t!(stream.set_read_timeout(None)); |
| assert_eq!(None, t!(stream.read_timeout())); |
| |
| t!(stream.set_write_timeout(None)); |
| assert_eq!(None, t!(stream.write_timeout())); |
| } |
| |
| #[test] |
| fn test_read_timeout() { |
| let addr = next_test_ip4(); |
| |
| let stream = t!(UdpSocket::bind(&addr)); |
| t!(stream.set_read_timeout(Some(Duration::from_millis(1000)))); |
| |
| let mut buf = [0; 10]; |
| |
| let start = Instant::now(); |
| let kind = stream.recv_from(&mut buf).err().expect("expected error").kind(); |
| assert!(kind == ErrorKind::WouldBlock || kind == ErrorKind::TimedOut); |
| assert!(start.elapsed() > Duration::from_millis(400)); |
| } |
| |
| #[test] |
| fn test_read_with_timeout() { |
| let addr = next_test_ip4(); |
| |
| let stream = t!(UdpSocket::bind(&addr)); |
| t!(stream.set_read_timeout(Some(Duration::from_millis(1000)))); |
| |
| t!(stream.send_to(b"hello world", &addr)); |
| |
| let mut buf = [0; 11]; |
| t!(stream.recv_from(&mut buf)); |
| assert_eq!(b"hello world", &buf[..]); |
| |
| let start = Instant::now(); |
| let kind = stream.recv_from(&mut buf).err().expect("expected error").kind(); |
| assert!(kind == ErrorKind::WouldBlock || kind == ErrorKind::TimedOut); |
| assert!(start.elapsed() > Duration::from_millis(400)); |
| } |
| |
| #[test] |
| fn connect_send_recv() { |
| let addr = next_test_ip4(); |
| |
| let socket = t!(UdpSocket::bind(&addr)); |
| t!(socket.connect(addr)); |
| |
| t!(socket.send(b"hello world")); |
| |
| let mut buf = [0; 11]; |
| t!(socket.recv(&mut buf)); |
| assert_eq!(b"hello world", &buf[..]); |
| } |
| |
| #[test] |
| fn ttl() { |
| let ttl = 100; |
| |
| let addr = next_test_ip4(); |
| |
| let stream = t!(UdpSocket::bind(&addr)); |
| |
| t!(stream.set_ttl(ttl)); |
| assert_eq!(ttl, t!(stream.ttl())); |
| } |
| |
| #[test] |
| fn set_nonblocking() { |
| let addr = next_test_ip4(); |
| |
| let stream = t!(UdpSocket::bind(&addr)); |
| |
| t!(stream.set_nonblocking(true)); |
| t!(stream.set_nonblocking(false)); |
| } |
| } |
