| // 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 prelude::v1::*; |
| use io::prelude::*; |
| |
| use fmt; |
| use io; |
| use net::{ToSocketAddrs, SocketAddr, Shutdown}; |
| use sys_common::io::read_to_end_uninitialized; |
| use sys_common::net as net_imp; |
| use sys_common::{AsInner, FromInner, IntoInner}; |
| use time::Duration; |
| |
| /// A structure which represents a TCP stream between a local socket and a |
| /// remote socket. |
| /// |
| /// The socket will be closed when the value is dropped. |
| /// |
| /// # Examples |
| /// |
| /// ```no_run |
| /// use std::io::prelude::*; |
| /// use std::net::TcpStream; |
| /// |
| /// { |
| /// let mut stream = TcpStream::connect("127.0.0.1:34254").unwrap(); |
| /// |
| /// // ignore the Result |
| /// let _ = stream.write(&[1]); |
| /// let _ = stream.read(&mut [0; 128]); // ignore here too |
| /// } // the stream is closed here |
| /// ``` |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub struct TcpStream(net_imp::TcpStream); |
| |
| /// A structure representing a socket server. |
| /// |
| /// # Examples |
| /// |
| /// ```no_run |
| /// use std::net::{TcpListener, TcpStream}; |
| /// use std::thread; |
| /// |
| /// let listener = TcpListener::bind("127.0.0.1:80").unwrap(); |
| /// |
| /// fn handle_client(stream: TcpStream) { |
| /// // ... |
| /// } |
| /// |
| /// // accept connections and process them, spawning a new thread for each one |
| /// for stream in listener.incoming() { |
| /// match stream { |
| /// Ok(stream) => { |
| /// thread::spawn(move|| { |
| /// // connection succeeded |
| /// handle_client(stream) |
| /// }); |
| /// } |
| /// Err(e) => { /* connection failed */ } |
| /// } |
| /// } |
| /// |
| /// // close the socket server |
| /// drop(listener); |
| /// ``` |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub struct TcpListener(net_imp::TcpListener); |
| |
| /// An infinite iterator over the connections from a `TcpListener`. |
| /// |
| /// This iterator will infinitely yield `Some` of the accepted connections. It |
| /// is equivalent to calling `accept` in a loop. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub struct Incoming<'a> { listener: &'a TcpListener } |
| |
| impl TcpStream { |
| /// Opens a TCP connection to a remote host. |
| /// |
| /// `addr` is an address of the remote host. Anything which implements |
| /// `ToSocketAddrs` trait can be supplied for the address; see this trait |
| /// documentation for concrete examples. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn connect<A: ToSocketAddrs>(addr: A) -> io::Result<TcpStream> { |
| super::each_addr(addr, net_imp::TcpStream::connect).map(TcpStream) |
| } |
| |
| /// Returns the socket address of the remote peer of this TCP connection. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn peer_addr(&self) -> io::Result<SocketAddr> { |
| self.0.peer_addr() |
| } |
| |
| /// Returns the socket address of the local half of this TCP connection. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn local_addr(&self) -> io::Result<SocketAddr> { |
| self.0.socket_addr() |
| } |
| |
| /// Shuts down the read, write, or both halves of this connection. |
| /// |
| /// This function will cause all pending and future I/O on the specified |
| /// portions to return immediately with an appropriate value (see the |
| /// documentation of `Shutdown`). |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn shutdown(&self, how: Shutdown) -> io::Result<()> { |
| self.0.shutdown(how) |
| } |
| |
| /// Creates a new independently owned handle to the underlying socket. |
| /// |
| /// The returned `TcpStream` is a reference to the same stream that this |
| /// object references. Both handles will read and write the same stream of |
| /// data, and options set on one stream will be propagated to the other |
| /// stream. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn try_clone(&self) -> io::Result<TcpStream> { |
| self.0.duplicate().map(TcpStream) |
| } |
| |
| /// 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. |
| /// |
| /// # Note |
| /// |
| /// Some platforms do not provide access to the current timeout. |
| #[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. |
| /// |
| /// # Note |
| /// |
| /// Some platforms do not provide access to the current timeout. |
| #[stable(feature = "socket_timeout", since = "1.4.0")] |
| pub fn write_timeout(&self) -> io::Result<Option<Duration>> { |
| self.0.write_timeout() |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl Read for TcpStream { |
| fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> { self.0.read(buf) } |
| fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> { |
| unsafe { read_to_end_uninitialized(self, buf) } |
| } |
| } |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl Write for TcpStream { |
| fn write(&mut self, buf: &[u8]) -> io::Result<usize> { self.0.write(buf) } |
| fn flush(&mut self) -> io::Result<()> { Ok(()) } |
| } |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl<'a> Read for &'a TcpStream { |
| fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> { self.0.read(buf) } |
| fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> { |
| unsafe { read_to_end_uninitialized(self, buf) } |
| } |
| } |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl<'a> Write for &'a TcpStream { |
| fn write(&mut self, buf: &[u8]) -> io::Result<usize> { self.0.write(buf) } |
| fn flush(&mut self) -> io::Result<()> { Ok(()) } |
| } |
| |
| impl AsInner<net_imp::TcpStream> for TcpStream { |
| fn as_inner(&self) -> &net_imp::TcpStream { &self.0 } |
| } |
| |
| impl FromInner<net_imp::TcpStream> for TcpStream { |
| fn from_inner(inner: net_imp::TcpStream) -> TcpStream { TcpStream(inner) } |
| } |
| |
| impl IntoInner<net_imp::TcpStream> for TcpStream { |
| fn into_inner(self) -> net_imp::TcpStream { self.0 } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl fmt::Debug for TcpStream { |
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
| self.0.fmt(f) |
| } |
| } |
| |
| impl TcpListener { |
| /// Creates a new `TcpListener` which will be bound to the specified |
| /// address. |
| /// |
| /// The returned listener is ready for accepting connections. |
| /// |
| /// Binding with a port number of 0 will request that the OS assigns a port |
| /// to this listener. The port allocated can be queried via the |
| /// `local_addr` method. |
| /// |
| /// The address type can be any implementor of `ToSocketAddrs` trait. See |
| /// its documentation for concrete examples. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn bind<A: ToSocketAddrs>(addr: A) -> io::Result<TcpListener> { |
| super::each_addr(addr, net_imp::TcpListener::bind).map(TcpListener) |
| } |
| |
| /// Returns the local socket address of this listener. |
| #[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 `TcpListener` is a reference to the same socket that this |
| /// object references. Both handles can be used to accept incoming |
| /// connections and options set on one listener will affect the other. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn try_clone(&self) -> io::Result<TcpListener> { |
| self.0.duplicate().map(TcpListener) |
| } |
| |
| /// Accept a new incoming connection from this listener. |
| /// |
| /// This function will block the calling thread until a new TCP connection |
| /// is established. When established, the corresponding `TcpStream` and the |
| /// remote peer's address will be returned. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn accept(&self) -> io::Result<(TcpStream, SocketAddr)> { |
| self.0.accept().map(|(a, b)| (TcpStream(a), b)) |
| } |
| |
| /// Returns an iterator over the connections being received on this |
| /// listener. |
| /// |
| /// The returned iterator will never return `None` and will also not yield |
| /// the peer's `SocketAddr` structure. |
| #[stable(feature = "rust1", since = "1.0.0")] |
| pub fn incoming(&self) -> Incoming { |
| Incoming { listener: self } |
| } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl<'a> Iterator for Incoming<'a> { |
| type Item = io::Result<TcpStream>; |
| fn next(&mut self) -> Option<io::Result<TcpStream>> { |
| Some(self.listener.accept().map(|p| p.0)) |
| } |
| } |
| |
| impl AsInner<net_imp::TcpListener> for TcpListener { |
| fn as_inner(&self) -> &net_imp::TcpListener { &self.0 } |
| } |
| |
| impl FromInner<net_imp::TcpListener> for TcpListener { |
| fn from_inner(inner: net_imp::TcpListener) -> TcpListener { |
| TcpListener(inner) |
| } |
| } |
| |
| impl IntoInner<net_imp::TcpListener> for TcpListener { |
| fn into_inner(self) -> net_imp::TcpListener { self.0 } |
| } |
| |
| #[stable(feature = "rust1", since = "1.0.0")] |
| impl fmt::Debug for TcpListener { |
| fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { |
| self.0.fmt(f) |
| } |
| } |
| |
| #[cfg(test)] |
| mod tests { |
| use prelude::v1::*; |
| |
| use io::ErrorKind; |
| use io::prelude::*; |
| 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)) { |
| f(next_test_ip4()); |
| f(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 TcpListener::bind("1.1.1.1:9999") { |
| Ok(..) => panic!(), |
| Err(e) => |
| assert_eq!(e.kind(), ErrorKind::AddrNotAvailable), |
| } |
| } |
| |
| #[test] |
| fn connect_error() { |
| match TcpStream::connect("0.0.0.0:1") { |
| Ok(..) => panic!(), |
| Err(e) => assert!(e.kind() == ErrorKind::ConnectionRefused || |
| e.kind() == ErrorKind::InvalidInput || |
| e.kind() == ErrorKind::AddrInUse || |
| e.kind() == ErrorKind::AddrNotAvailable, |
| "bad error: {} {:?}", e, e.kind()), |
| } |
| } |
| |
| #[test] |
| fn listen_localhost() { |
| let socket_addr = next_test_ip4(); |
| let listener = t!(TcpListener::bind(&socket_addr)); |
| |
| let _t = thread::spawn(move || { |
| let mut stream = t!(TcpStream::connect(&("localhost", |
| socket_addr.port()))); |
| t!(stream.write(&[144])); |
| }); |
| |
| let mut stream = t!(listener.accept()).0; |
| let mut buf = [0]; |
| t!(stream.read(&mut buf)); |
| assert!(buf[0] == 144); |
| } |
| |
| #[test] |
| fn connect_loopback() { |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let _t = thread::spawn(move|| { |
| let host = match addr { |
| SocketAddr::V4(..) => "127.0.0.1", |
| SocketAddr::V6(..) => "::1", |
| }; |
| let mut stream = t!(TcpStream::connect(&(host, addr.port()))); |
| t!(stream.write(&[66])); |
| }); |
| |
| let mut stream = t!(acceptor.accept()).0; |
| let mut buf = [0]; |
| t!(stream.read(&mut buf)); |
| assert!(buf[0] == 66); |
| }) |
| } |
| |
| #[test] |
| fn smoke_test() { |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let (tx, rx) = channel(); |
| let _t = thread::spawn(move|| { |
| let mut stream = t!(TcpStream::connect(&addr)); |
| t!(stream.write(&[99])); |
| tx.send(t!(stream.local_addr())).unwrap(); |
| }); |
| |
| let (mut stream, addr) = t!(acceptor.accept()); |
| let mut buf = [0]; |
| t!(stream.read(&mut buf)); |
| assert!(buf[0] == 99); |
| assert_eq!(addr, t!(rx.recv())); |
| }) |
| } |
| |
| #[test] |
| fn read_eof() { |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let _t = thread::spawn(move|| { |
| let _stream = t!(TcpStream::connect(&addr)); |
| // Close |
| }); |
| |
| let mut stream = t!(acceptor.accept()).0; |
| let mut buf = [0]; |
| let nread = t!(stream.read(&mut buf)); |
| assert_eq!(nread, 0); |
| let nread = t!(stream.read(&mut buf)); |
| assert_eq!(nread, 0); |
| }) |
| } |
| |
| #[test] |
| fn write_close() { |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let (tx, rx) = channel(); |
| let _t = thread::spawn(move|| { |
| drop(t!(TcpStream::connect(&addr))); |
| tx.send(()).unwrap(); |
| }); |
| |
| let mut stream = t!(acceptor.accept()).0; |
| rx.recv().unwrap(); |
| let buf = [0]; |
| match stream.write(&buf) { |
| Ok(..) => {} |
| Err(e) => { |
| assert!(e.kind() == ErrorKind::ConnectionReset || |
| e.kind() == ErrorKind::BrokenPipe || |
| e.kind() == ErrorKind::ConnectionAborted, |
| "unknown error: {}", e); |
| } |
| } |
| }) |
| } |
| |
| #[test] |
| fn multiple_connect_serial() { |
| each_ip(&mut |addr| { |
| let max = 10; |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let _t = thread::spawn(move|| { |
| for _ in 0..max { |
| let mut stream = t!(TcpStream::connect(&addr)); |
| t!(stream.write(&[99])); |
| } |
| }); |
| |
| for stream in acceptor.incoming().take(max) { |
| let mut stream = t!(stream); |
| let mut buf = [0]; |
| t!(stream.read(&mut buf)); |
| assert_eq!(buf[0], 99); |
| } |
| }) |
| } |
| |
| #[test] |
| fn multiple_connect_interleaved_greedy_schedule() { |
| const MAX: usize = 10; |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let _t = thread::spawn(move|| { |
| let acceptor = acceptor; |
| for (i, stream) in acceptor.incoming().enumerate().take(MAX) { |
| // Start another thread to handle the connection |
| let _t = thread::spawn(move|| { |
| let mut stream = t!(stream); |
| let mut buf = [0]; |
| t!(stream.read(&mut buf)); |
| assert!(buf[0] == i as u8); |
| }); |
| } |
| }); |
| |
| connect(0, addr); |
| }); |
| |
| fn connect(i: usize, addr: SocketAddr) { |
| if i == MAX { return } |
| |
| let t = thread::spawn(move|| { |
| let mut stream = t!(TcpStream::connect(&addr)); |
| // Connect again before writing |
| connect(i + 1, addr); |
| t!(stream.write(&[i as u8])); |
| }); |
| t.join().ok().unwrap(); |
| } |
| } |
| |
| #[test] |
| fn multiple_connect_interleaved_lazy_schedule() { |
| const MAX: usize = 10; |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let _t = thread::spawn(move|| { |
| for stream in acceptor.incoming().take(MAX) { |
| // Start another thread to handle the connection |
| let _t = thread::spawn(move|| { |
| let mut stream = t!(stream); |
| let mut buf = [0]; |
| t!(stream.read(&mut buf)); |
| assert!(buf[0] == 99); |
| }); |
| } |
| }); |
| |
| connect(0, addr); |
| }); |
| |
| fn connect(i: usize, addr: SocketAddr) { |
| if i == MAX { return } |
| |
| let t = thread::spawn(move|| { |
| let mut stream = t!(TcpStream::connect(&addr)); |
| connect(i + 1, addr); |
| t!(stream.write(&[99])); |
| }); |
| t.join().ok().unwrap(); |
| } |
| } |
| |
| #[test] |
| fn socket_and_peer_name() { |
| each_ip(&mut |addr| { |
| let listener = t!(TcpListener::bind(&addr)); |
| let so_name = t!(listener.local_addr()); |
| assert_eq!(addr, so_name); |
| let _t = thread::spawn(move|| { |
| t!(listener.accept()); |
| }); |
| |
| let stream = t!(TcpStream::connect(&addr)); |
| assert_eq!(addr, t!(stream.peer_addr())); |
| }) |
| } |
| |
| #[test] |
| fn partial_read() { |
| each_ip(&mut |addr| { |
| let (tx, rx) = channel(); |
| let srv = t!(TcpListener::bind(&addr)); |
| let _t = thread::spawn(move|| { |
| let mut cl = t!(srv.accept()).0; |
| cl.write(&[10]).unwrap(); |
| let mut b = [0]; |
| t!(cl.read(&mut b)); |
| tx.send(()).unwrap(); |
| }); |
| |
| let mut c = t!(TcpStream::connect(&addr)); |
| let mut b = [0; 10]; |
| assert_eq!(c.read(&mut b).unwrap(), 1); |
| t!(c.write(&[1])); |
| rx.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn double_bind() { |
| each_ip(&mut |addr| { |
| let _listener = t!(TcpListener::bind(&addr)); |
| match TcpListener::bind(&addr) { |
| Ok(..) => panic!(), |
| Err(e) => { |
| assert!(e.kind() == ErrorKind::ConnectionRefused || |
| e.kind() == ErrorKind::Other || |
| e.kind() == ErrorKind::AddrInUse, |
| "unknown error: {} {:?}", e, e.kind()); |
| } |
| } |
| }) |
| } |
| |
| #[test] |
| fn fast_rebind() { |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let _t = thread::spawn(move|| { |
| t!(TcpStream::connect(&addr)); |
| }); |
| |
| t!(acceptor.accept()); |
| drop(acceptor); |
| t!(TcpListener::bind(&addr)); |
| }); |
| } |
| |
| #[test] |
| fn tcp_clone_smoke() { |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let _t = thread::spawn(move|| { |
| let mut s = t!(TcpStream::connect(&addr)); |
| let mut buf = [0, 0]; |
| assert_eq!(s.read(&mut buf).unwrap(), 1); |
| assert_eq!(buf[0], 1); |
| t!(s.write(&[2])); |
| }); |
| |
| let mut s1 = t!(acceptor.accept()).0; |
| let s2 = t!(s1.try_clone()); |
| |
| let (tx1, rx1) = channel(); |
| let (tx2, rx2) = channel(); |
| let _t = thread::spawn(move|| { |
| let mut s2 = s2; |
| rx1.recv().unwrap(); |
| t!(s2.write(&[1])); |
| tx2.send(()).unwrap(); |
| }); |
| tx1.send(()).unwrap(); |
| let mut buf = [0, 0]; |
| assert_eq!(s1.read(&mut buf).unwrap(), 1); |
| rx2.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn tcp_clone_two_read() { |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| let (tx1, rx) = channel(); |
| let tx2 = tx1.clone(); |
| |
| let _t = thread::spawn(move|| { |
| let mut s = t!(TcpStream::connect(&addr)); |
| t!(s.write(&[1])); |
| rx.recv().unwrap(); |
| t!(s.write(&[2])); |
| rx.recv().unwrap(); |
| }); |
| |
| let mut s1 = t!(acceptor.accept()).0; |
| let s2 = t!(s1.try_clone()); |
| |
| let (done, rx) = channel(); |
| let _t = thread::spawn(move|| { |
| let mut s2 = s2; |
| let mut buf = [0, 0]; |
| t!(s2.read(&mut buf)); |
| tx2.send(()).unwrap(); |
| done.send(()).unwrap(); |
| }); |
| let mut buf = [0, 0]; |
| t!(s1.read(&mut buf)); |
| tx1.send(()).unwrap(); |
| |
| rx.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn tcp_clone_two_write() { |
| each_ip(&mut |addr| { |
| let acceptor = t!(TcpListener::bind(&addr)); |
| |
| let _t = thread::spawn(move|| { |
| let mut s = t!(TcpStream::connect(&addr)); |
| let mut buf = [0, 1]; |
| t!(s.read(&mut buf)); |
| t!(s.read(&mut buf)); |
| }); |
| |
| let mut s1 = t!(acceptor.accept()).0; |
| let s2 = t!(s1.try_clone()); |
| |
| let (done, rx) = channel(); |
| let _t = thread::spawn(move|| { |
| let mut s2 = s2; |
| t!(s2.write(&[1])); |
| done.send(()).unwrap(); |
| }); |
| t!(s1.write(&[2])); |
| |
| rx.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn shutdown_smoke() { |
| each_ip(&mut |addr| { |
| let a = t!(TcpListener::bind(&addr)); |
| let _t = thread::spawn(move|| { |
| let mut c = t!(a.accept()).0; |
| let mut b = [0]; |
| assert_eq!(c.read(&mut b).unwrap(), 0); |
| t!(c.write(&[1])); |
| }); |
| |
| let mut s = t!(TcpStream::connect(&addr)); |
| t!(s.shutdown(Shutdown::Write)); |
| assert!(s.write(&[1]).is_err()); |
| let mut b = [0, 0]; |
| assert_eq!(t!(s.read(&mut b)), 1); |
| assert_eq!(b[0], 1); |
| }) |
| } |
| |
| #[test] |
| fn close_readwrite_smoke() { |
| each_ip(&mut |addr| { |
| let a = t!(TcpListener::bind(&addr)); |
| let (tx, rx) = channel::<()>(); |
| let _t = thread::spawn(move|| { |
| let _s = t!(a.accept()); |
| let _ = rx.recv(); |
| }); |
| |
| let mut b = [0]; |
| let mut s = t!(TcpStream::connect(&addr)); |
| let mut s2 = t!(s.try_clone()); |
| |
| // closing should prevent reads/writes |
| t!(s.shutdown(Shutdown::Write)); |
| assert!(s.write(&[0]).is_err()); |
| t!(s.shutdown(Shutdown::Read)); |
| assert_eq!(s.read(&mut b).unwrap(), 0); |
| |
| // closing should affect previous handles |
| assert!(s2.write(&[0]).is_err()); |
| assert_eq!(s2.read(&mut b).unwrap(), 0); |
| |
| // closing should affect new handles |
| let mut s3 = t!(s.try_clone()); |
| assert!(s3.write(&[0]).is_err()); |
| assert_eq!(s3.read(&mut b).unwrap(), 0); |
| |
| // make sure these don't die |
| let _ = s2.shutdown(Shutdown::Read); |
| let _ = s2.shutdown(Shutdown::Write); |
| let _ = s3.shutdown(Shutdown::Read); |
| let _ = s3.shutdown(Shutdown::Write); |
| drop(tx); |
| }) |
| } |
| |
| #[test] |
| fn close_read_wakes_up() { |
| each_ip(&mut |addr| { |
| let a = t!(TcpListener::bind(&addr)); |
| let (tx1, rx) = channel::<()>(); |
| let _t = thread::spawn(move|| { |
| let _s = t!(a.accept()); |
| let _ = rx.recv(); |
| }); |
| |
| let s = t!(TcpStream::connect(&addr)); |
| let s2 = t!(s.try_clone()); |
| let (tx, rx) = channel(); |
| let _t = thread::spawn(move|| { |
| let mut s2 = s2; |
| assert_eq!(t!(s2.read(&mut [0])), 0); |
| tx.send(()).unwrap(); |
| }); |
| // this should wake up the child thread |
| t!(s.shutdown(Shutdown::Read)); |
| |
| // this test will never finish if the child doesn't wake up |
| rx.recv().unwrap(); |
| drop(tx1); |
| }) |
| } |
| |
| #[test] |
| fn clone_while_reading() { |
| each_ip(&mut |addr| { |
| let accept = t!(TcpListener::bind(&addr)); |
| |
| // Enqueue a thread to write to a socket |
| let (tx, rx) = channel(); |
| let (txdone, rxdone) = channel(); |
| let txdone2 = txdone.clone(); |
| let _t = thread::spawn(move|| { |
| let mut tcp = t!(TcpStream::connect(&addr)); |
| rx.recv().unwrap(); |
| t!(tcp.write(&[0])); |
| txdone2.send(()).unwrap(); |
| }); |
| |
| // Spawn off a reading clone |
| let tcp = t!(accept.accept()).0; |
| let tcp2 = t!(tcp.try_clone()); |
| let txdone3 = txdone.clone(); |
| let _t = thread::spawn(move|| { |
| let mut tcp2 = tcp2; |
| t!(tcp2.read(&mut [0])); |
| txdone3.send(()).unwrap(); |
| }); |
| |
| // Try to ensure that the reading clone is indeed reading |
| for _ in 0..50 { |
| thread::yield_now(); |
| } |
| |
| // clone the handle again while it's reading, then let it finish the |
| // read. |
| let _ = t!(tcp.try_clone()); |
| tx.send(()).unwrap(); |
| rxdone.recv().unwrap(); |
| rxdone.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn clone_accept_smoke() { |
| each_ip(&mut |addr| { |
| let a = t!(TcpListener::bind(&addr)); |
| let a2 = t!(a.try_clone()); |
| |
| let _t = thread::spawn(move|| { |
| let _ = TcpStream::connect(&addr); |
| }); |
| let _t = thread::spawn(move|| { |
| let _ = TcpStream::connect(&addr); |
| }); |
| |
| t!(a.accept()); |
| t!(a2.accept()); |
| }) |
| } |
| |
| #[test] |
| fn clone_accept_concurrent() { |
| each_ip(&mut |addr| { |
| let a = t!(TcpListener::bind(&addr)); |
| let a2 = t!(a.try_clone()); |
| |
| let (tx, rx) = channel(); |
| let tx2 = tx.clone(); |
| |
| let _t = thread::spawn(move|| { |
| tx.send(t!(a.accept())).unwrap(); |
| }); |
| let _t = thread::spawn(move|| { |
| tx2.send(t!(a2.accept())).unwrap(); |
| }); |
| |
| let _t = thread::spawn(move|| { |
| let _ = TcpStream::connect(&addr); |
| }); |
| let _t = thread::spawn(move|| { |
| let _ = TcpStream::connect(&addr); |
| }); |
| |
| rx.recv().unwrap(); |
| rx.recv().unwrap(); |
| }) |
| } |
| |
| #[test] |
| fn debug() { |
| let name = if cfg!(windows) {"socket"} else {"fd"}; |
| let socket_addr = next_test_ip4(); |
| |
| let listener = t!(TcpListener::bind(&socket_addr)); |
| let listener_inner = listener.0.socket().as_inner(); |
| let compare = format!("TcpListener {{ addr: {:?}, {}: {:?} }}", |
| socket_addr, name, listener_inner); |
| assert_eq!(format!("{:?}", listener), compare); |
| |
| let stream = t!(TcpStream::connect(&("localhost", |
| socket_addr.port()))); |
| let stream_inner = stream.0.socket().as_inner(); |
| let compare = format!("TcpStream {{ addr: {:?}, \ |
| peer: {:?}, {}: {:?} }}", |
| stream.local_addr().unwrap(), |
| stream.peer_addr().unwrap(), |
| name, |
| stream_inner); |
| assert_eq!(format!("{:?}", stream), compare); |
| } |
| |
| // FIXME: re-enabled bitrig/openbsd 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 listener = t!(TcpListener::bind(&addr)); |
| |
| let stream = t!(TcpStream::connect(&("localhost", addr.port()))); |
| 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())); |
| drop(listener); |
| } |
| |
| #[test] |
| fn test_read_timeout() { |
| let addr = next_test_ip4(); |
| let listener = t!(TcpListener::bind(&addr)); |
| |
| let mut stream = t!(TcpStream::connect(&("localhost", addr.port()))); |
| t!(stream.set_read_timeout(Some(Duration::from_millis(1000)))); |
| |
| let mut buf = [0; 10]; |
| let start = Instant::now(); |
| let kind = stream.read(&mut buf).err().expect("expected error").kind(); |
| assert!(kind == ErrorKind::WouldBlock || kind == ErrorKind::TimedOut); |
| assert!(start.elapsed() > Duration::from_millis(400)); |
| drop(listener); |
| } |
| |
| #[test] |
| fn test_read_with_timeout() { |
| let addr = next_test_ip4(); |
| let listener = t!(TcpListener::bind(&addr)); |
| |
| let mut stream = t!(TcpStream::connect(&("localhost", addr.port()))); |
| t!(stream.set_read_timeout(Some(Duration::from_millis(1000)))); |
| |
| let mut other_end = t!(listener.accept()).0; |
| t!(other_end.write_all(b"hello world")); |
| |
| let mut buf = [0; 11]; |
| t!(stream.read(&mut buf)); |
| assert_eq!(b"hello world", &buf[..]); |
| |
| let start = Instant::now(); |
| let kind = stream.read(&mut buf).err().expect("expected error").kind(); |
| assert!(kind == ErrorKind::WouldBlock || kind == ErrorKind::TimedOut); |
| assert!(start.elapsed() > Duration::from_millis(400)); |
| drop(listener); |
| } |
| } |
