1 // Copyright 2013 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
14 use std::libc::{size_t, ssize_t, c_int, c_void, c_uint};
19 use std::rt::task::BlockedTask;
22 use homing::{HomingIO, HomeHandle};
24 use stream::StreamWatcher;
25 use super::{Loop, Request, UvError, Buf, status_to_io_result,
26 uv_error_to_io_error, UvHandle, slice_to_uv_buf,
27 wait_until_woken_after, wakeup};
28 use uvio::UvIoFactory;
31 ////////////////////////////////////////////////////////////////////////////////
32 /// Generic functions related to dealing with sockaddr things
33 ////////////////////////////////////////////////////////////////////////////////
35 pub fn htons(u: u16) -> u16 { mem::to_be16(u as i16) as u16 }
36 pub fn ntohs(u: u16) -> u16 { mem::from_be16(u as i16) as u16 }
38 pub fn sockaddr_to_addr(storage: &libc::sockaddr_storage,
39 len: uint) -> ip::SocketAddr {
40 match storage.ss_family as c_int {
42 assert!(len as uint >= mem::size_of::<libc::sockaddr_in>());
43 let storage: &libc::sockaddr_in = unsafe {
44 cast::transmute(storage)
46 let addr = storage.sin_addr.s_addr as u32;
47 let a = (addr >> 0) as u8;
48 let b = (addr >> 8) as u8;
49 let c = (addr >> 16) as u8;
50 let d = (addr >> 24) as u8;
52 ip: ip::Ipv4Addr(a, b, c, d),
53 port: ntohs(storage.sin_port),
57 assert!(len as uint >= mem::size_of::<libc::sockaddr_in6>());
58 let storage: &libc::sockaddr_in6 = unsafe {
59 cast::transmute(storage)
61 let a = ntohs(storage.sin6_addr.s6_addr[0]);
62 let b = ntohs(storage.sin6_addr.s6_addr[1]);
63 let c = ntohs(storage.sin6_addr.s6_addr[2]);
64 let d = ntohs(storage.sin6_addr.s6_addr[3]);
65 let e = ntohs(storage.sin6_addr.s6_addr[4]);
66 let f = ntohs(storage.sin6_addr.s6_addr[5]);
67 let g = ntohs(storage.sin6_addr.s6_addr[6]);
68 let h = ntohs(storage.sin6_addr.s6_addr[7]);
70 ip: ip::Ipv6Addr(a, b, c, d, e, f, g, h),
71 port: ntohs(storage.sin6_port),
75 fail!("unknown family {}", n);
80 fn addr_to_sockaddr(addr: ip::SocketAddr) -> (libc::sockaddr_storage, uint) {
82 let mut storage: libc::sockaddr_storage = mem::init();
83 let len = match addr.ip {
84 ip::Ipv4Addr(a, b, c, d) => {
85 let storage: &mut libc::sockaddr_in =
86 cast::transmute(&mut storage);
87 (*storage).sin_family = libc::AF_INET as libc::sa_family_t;
88 (*storage).sin_port = htons(addr.port);
89 (*storage).sin_addr = libc::in_addr {
90 s_addr: (d as u32 << 24) |
95 mem::size_of::<libc::sockaddr_in>()
97 ip::Ipv6Addr(a, b, c, d, e, f, g, h) => {
98 let storage: &mut libc::sockaddr_in6 =
99 cast::transmute(&mut storage);
100 storage.sin6_family = libc::AF_INET6 as libc::sa_family_t;
101 storage.sin6_port = htons(addr.port);
102 storage.sin6_addr = libc::in6_addr {
114 mem::size_of::<libc::sockaddr_in6>()
117 return (storage, len);
121 enum SocketNameKind {
127 fn socket_name(sk: SocketNameKind,
128 handle: *c_void) -> Result<ip::SocketAddr, IoError> {
129 let getsockname = match sk {
130 TcpPeer => uvll::uv_tcp_getpeername,
131 Tcp => uvll::uv_tcp_getsockname,
132 Udp => uvll::uv_udp_getsockname,
135 // Allocate a sockaddr_storage since we don't know if it's ipv4 or ipv6
136 let mut sockaddr: libc::sockaddr_storage = unsafe { mem::init() };
137 let mut namelen = mem::size_of::<libc::sockaddr_storage>() as c_int;
139 let sockaddr_p = &mut sockaddr as *mut libc::sockaddr_storage;
141 getsockname(handle, sockaddr_p as *mut libc::sockaddr, &mut namelen)
143 0 => Ok(sockaddr_to_addr(&sockaddr, namelen as uint)),
144 n => Err(uv_error_to_io_error(UvError(n)))
148 ////////////////////////////////////////////////////////////////////////////////
149 /// TCP implementation
150 ////////////////////////////////////////////////////////////////////////////////
152 pub struct TcpWatcher {
153 handle: *uvll::uv_tcp_t,
154 stream: StreamWatcher,
156 priv refcount: Refcount,
158 // libuv can't support concurrent reads and concurrent writes of the same
159 // stream object, so we use these access guards in order to arbitrate among
160 // multiple concurrent reads and writes. Note that libuv *can* read and
161 // write simultaneously, it just can't read and read simultaneously.
162 priv read_access: Access,
163 priv write_access: Access,
166 pub struct TcpListener {
168 handle: *uvll::uv_pipe_t,
169 priv closing_task: Option<BlockedTask>,
170 priv outgoing: Chan<Result<~rtio::RtioTcpStream, IoError>>,
171 priv incoming: Port<Result<~rtio::RtioTcpStream, IoError>>,
174 pub struct TcpAcceptor {
175 listener: ~TcpListener,
178 // TCP watchers (clients/streams)
181 pub fn new(io: &mut UvIoFactory) -> TcpWatcher {
182 let handle = io.make_handle();
183 TcpWatcher::new_home(&io.loop_, handle)
186 fn new_home(loop_: &Loop, home: HomeHandle) -> TcpWatcher {
187 let handle = unsafe { uvll::malloc_handle(uvll::UV_TCP) };
189 uvll::uv_tcp_init(loop_.handle, handle)
194 stream: StreamWatcher::new(handle),
195 refcount: Refcount::new(),
196 read_access: Access::new(),
197 write_access: Access::new(),
201 pub fn connect(io: &mut UvIoFactory, address: ip::SocketAddr)
202 -> Result<TcpWatcher, UvError>
204 struct Ctx { status: c_int, task: Option<BlockedTask> }
206 let tcp = TcpWatcher::new(io);
207 let (addr, _len) = addr_to_sockaddr(address);
208 let mut req = Request::new(uvll::UV_CONNECT);
209 let result = unsafe {
210 let addr_p = &addr as *libc::sockaddr_storage;
211 uvll::uv_tcp_connect(req.handle, tcp.handle,
212 addr_p as *libc::sockaddr,
215 return match result {
217 req.defuse(); // uv callback now owns this request
218 let mut cx = Ctx { status: 0, task: None };
219 wait_until_woken_after(&mut cx.task, || {
224 n => Err(UvError(n)),
230 extern fn connect_cb(req: *uvll::uv_connect_t, status: c_int) {
231 let req = Request::wrap(req);
232 assert!(status != uvll::ECANCELED);
233 let cx: &mut Ctx = unsafe { req.get_data() };
235 wakeup(&mut cx.task);
240 impl HomingIO for TcpWatcher {
241 fn home<'r>(&'r mut self) -> &'r mut HomeHandle { &mut self.home }
244 impl rtio::RtioSocket for TcpWatcher {
245 fn socket_name(&mut self) -> Result<ip::SocketAddr, IoError> {
246 let _m = self.fire_homing_missile();
247 socket_name(Tcp, self.handle)
251 impl rtio::RtioTcpStream for TcpWatcher {
252 fn read(&mut self, buf: &mut [u8]) -> Result<uint, IoError> {
253 let m = self.fire_homing_missile();
254 let _g = self.read_access.grant(m);
255 self.stream.read(buf).map_err(uv_error_to_io_error)
258 fn write(&mut self, buf: &[u8]) -> Result<(), IoError> {
259 let m = self.fire_homing_missile();
260 let _g = self.write_access.grant(m);
261 self.stream.write(buf).map_err(uv_error_to_io_error)
264 fn peer_name(&mut self) -> Result<ip::SocketAddr, IoError> {
265 let _m = self.fire_homing_missile();
266 socket_name(TcpPeer, self.handle)
269 fn control_congestion(&mut self) -> Result<(), IoError> {
270 let _m = self.fire_homing_missile();
271 status_to_io_result(unsafe {
272 uvll::uv_tcp_nodelay(self.handle, 0 as c_int)
276 fn nodelay(&mut self) -> Result<(), IoError> {
277 let _m = self.fire_homing_missile();
278 status_to_io_result(unsafe {
279 uvll::uv_tcp_nodelay(self.handle, 1 as c_int)
283 fn keepalive(&mut self, delay_in_seconds: uint) -> Result<(), IoError> {
284 let _m = self.fire_homing_missile();
285 status_to_io_result(unsafe {
286 uvll::uv_tcp_keepalive(self.handle, 1 as c_int,
287 delay_in_seconds as c_uint)
291 fn letdie(&mut self) -> Result<(), IoError> {
292 let _m = self.fire_homing_missile();
293 status_to_io_result(unsafe {
294 uvll::uv_tcp_keepalive(self.handle, 0 as c_int, 0 as c_uint)
298 fn clone(&self) -> ~rtio::RtioTcpStream {
301 stream: StreamWatcher::new(self.handle),
302 home: self.home.clone(),
303 refcount: self.refcount.clone(),
304 write_access: self.write_access.clone(),
305 read_access: self.read_access.clone(),
306 } as ~rtio::RtioTcpStream
310 impl UvHandle<uvll::uv_tcp_t> for TcpWatcher {
311 fn uv_handle(&self) -> *uvll::uv_tcp_t { self.stream.handle }
314 impl Drop for TcpWatcher {
316 let _m = self.fire_homing_missile();
317 if self.refcount.decrement() {
323 // TCP listeners (unbound servers)
326 pub fn bind(io: &mut UvIoFactory, address: ip::SocketAddr)
327 -> Result<~TcpListener, UvError> {
328 let handle = unsafe { uvll::malloc_handle(uvll::UV_TCP) };
330 uvll::uv_tcp_init(io.uv_loop(), handle)
332 let (port, chan) = Chan::new();
333 let l = ~TcpListener {
334 home: io.make_handle(),
340 let (addr, _len) = addr_to_sockaddr(address);
342 let addr_p = &addr as *libc::sockaddr_storage;
343 uvll::uv_tcp_bind(l.handle, addr_p as *libc::sockaddr)
346 0 => Ok(l.install()),
352 impl HomingIO for TcpListener {
353 fn home<'r>(&'r mut self) -> &'r mut HomeHandle { &mut self.home }
356 impl UvHandle<uvll::uv_tcp_t> for TcpListener {
357 fn uv_handle(&self) -> *uvll::uv_tcp_t { self.handle }
360 impl rtio::RtioSocket for TcpListener {
361 fn socket_name(&mut self) -> Result<ip::SocketAddr, IoError> {
362 let _m = self.fire_homing_missile();
363 socket_name(Tcp, self.handle)
367 impl rtio::RtioTcpListener for TcpListener {
368 fn listen(~self) -> Result<~rtio::RtioTcpAcceptor, IoError> {
369 // create the acceptor object from ourselves
370 let mut acceptor = ~TcpAcceptor { listener: self };
372 let _m = acceptor.fire_homing_missile();
373 // FIXME: the 128 backlog should be configurable
374 match unsafe { uvll::uv_listen(acceptor.listener.handle, 128, listen_cb) } {
375 0 => Ok(acceptor as ~rtio::RtioTcpAcceptor),
376 n => Err(uv_error_to_io_error(UvError(n))),
381 extern fn listen_cb(server: *uvll::uv_stream_t, status: c_int) {
382 assert!(status != uvll::ECANCELED);
383 let tcp: &mut TcpListener = unsafe { UvHandle::from_uv_handle(&server) };
384 let msg = match status {
386 let loop_ = Loop::wrap(unsafe {
387 uvll::get_loop_for_uv_handle(server)
389 let client = TcpWatcher::new_home(&loop_, tcp.home().clone());
390 assert_eq!(unsafe { uvll::uv_accept(server, client.handle) }, 0);
391 Ok(~client as ~rtio::RtioTcpStream)
393 n => Err(uv_error_to_io_error(UvError(n)))
395 tcp.outgoing.send(msg);
398 impl Drop for TcpListener {
400 let _m = self.fire_homing_missile();
405 // TCP acceptors (bound servers)
407 impl HomingIO for TcpAcceptor {
408 fn home<'r>(&'r mut self) -> &'r mut HomeHandle { self.listener.home() }
411 impl rtio::RtioSocket for TcpAcceptor {
412 fn socket_name(&mut self) -> Result<ip::SocketAddr, IoError> {
413 let _m = self.fire_homing_missile();
414 socket_name(Tcp, self.listener.handle)
418 impl rtio::RtioTcpAcceptor for TcpAcceptor {
419 fn accept(&mut self) -> Result<~rtio::RtioTcpStream, IoError> {
420 self.listener.incoming.recv()
423 fn accept_simultaneously(&mut self) -> Result<(), IoError> {
424 let _m = self.fire_homing_missile();
425 status_to_io_result(unsafe {
426 uvll::uv_tcp_simultaneous_accepts(self.listener.handle, 1)
430 fn dont_accept_simultaneously(&mut self) -> Result<(), IoError> {
431 let _m = self.fire_homing_missile();
432 status_to_io_result(unsafe {
433 uvll::uv_tcp_simultaneous_accepts(self.listener.handle, 0)
438 ////////////////////////////////////////////////////////////////////////////////
439 /// UDP implementation
440 ////////////////////////////////////////////////////////////////////////////////
442 pub struct UdpWatcher {
443 handle: *uvll::uv_udp_t,
446 // See above for what these fields are
447 priv refcount: Refcount,
448 priv read_access: Access,
449 priv write_access: Access,
453 pub fn bind(io: &mut UvIoFactory, address: ip::SocketAddr)
454 -> Result<UdpWatcher, UvError> {
455 let udp = UdpWatcher {
456 handle: unsafe { uvll::malloc_handle(uvll::UV_UDP) },
457 home: io.make_handle(),
458 refcount: Refcount::new(),
459 read_access: Access::new(),
460 write_access: Access::new(),
463 uvll::uv_udp_init(io.uv_loop(), udp.handle)
465 let (addr, _len) = addr_to_sockaddr(address);
466 let result = unsafe {
467 let addr_p = &addr as *libc::sockaddr_storage;
468 uvll::uv_udp_bind(udp.handle, addr_p as *libc::sockaddr, 0u32)
470 return match result {
472 n => Err(UvError(n)),
477 impl UvHandle<uvll::uv_udp_t> for UdpWatcher {
478 fn uv_handle(&self) -> *uvll::uv_udp_t { self.handle }
481 impl HomingIO for UdpWatcher {
482 fn home<'r>(&'r mut self) -> &'r mut HomeHandle { &mut self.home }
485 impl rtio::RtioSocket for UdpWatcher {
486 fn socket_name(&mut self) -> Result<ip::SocketAddr, IoError> {
487 let _m = self.fire_homing_missile();
488 socket_name(Udp, self.handle)
492 impl rtio::RtioUdpSocket for UdpWatcher {
493 fn recvfrom(&mut self, buf: &mut [u8])
494 -> Result<(uint, ip::SocketAddr), IoError>
497 task: Option<BlockedTask>,
499 result: Option<(ssize_t, Option<ip::SocketAddr>)>,
501 let m = self.fire_homing_missile();
502 let _g = self.read_access.grant(m);
504 let a = match unsafe {
505 uvll::uv_udp_recv_start(self.handle, alloc_cb, recv_cb)
510 buf: Some(slice_to_uv_buf(buf)),
513 let handle = self.handle;
514 wait_until_woken_after(&mut cx.task, || {
515 unsafe { uvll::set_data_for_uv_handle(handle, &cx) }
517 match cx.result.take_unwrap() {
519 Err(uv_error_to_io_error(UvError(n as c_int))),
520 (n, addr) => Ok((n as uint, addr.unwrap()))
523 n => Err(uv_error_to_io_error(UvError(n)))
527 extern fn alloc_cb(handle: *uvll::uv_udp_t,
528 _suggested_size: size_t,
532 cast::transmute(uvll::get_data_for_uv_handle(handle));
533 *buf = cx.buf.take().expect("recv alloc_cb called more than once")
537 extern fn recv_cb(handle: *uvll::uv_udp_t, nread: ssize_t, buf: *Buf,
538 addr: *libc::sockaddr, _flags: c_uint) {
539 assert!(nread != uvll::ECANCELED as ssize_t);
540 let cx: &mut Ctx = unsafe {
541 cast::transmute(uvll::get_data_for_uv_handle(handle))
544 // When there's no data to read the recv callback can be a no-op.
545 // This can happen if read returns EAGAIN/EWOULDBLOCK. By ignoring
546 // this we just drop back to kqueue and wait for the next callback.
548 cx.buf = Some(unsafe { *buf });
553 assert_eq!(uvll::uv_udp_recv_stop(handle), 0)
556 let cx: &mut Ctx = unsafe {
557 cast::transmute(uvll::get_data_for_uv_handle(handle))
559 let addr = if addr == ptr::null() {
562 let len = mem::size_of::<libc::sockaddr_storage>();
563 Some(sockaddr_to_addr(unsafe { cast::transmute(addr) }, len))
565 cx.result = Some((nread, addr));
566 wakeup(&mut cx.task);
570 fn sendto(&mut self, buf: &[u8], dst: ip::SocketAddr) -> Result<(), IoError> {
571 struct Ctx { task: Option<BlockedTask>, result: c_int }
573 let m = self.fire_homing_missile();
574 let _g = self.write_access.grant(m);
576 let mut req = Request::new(uvll::UV_UDP_SEND);
577 let buf = slice_to_uv_buf(buf);
578 let (addr, _len) = addr_to_sockaddr(dst);
579 let result = unsafe {
580 let addr_p = &addr as *libc::sockaddr_storage;
581 uvll::uv_udp_send(req.handle, self.handle, [buf],
582 addr_p as *libc::sockaddr, send_cb)
585 return match result {
587 req.defuse(); // uv callback now owns this request
588 let mut cx = Ctx { task: None, result: 0 };
589 wait_until_woken_after(&mut cx.task, || {
594 n => Err(uv_error_to_io_error(UvError(n)))
597 n => Err(uv_error_to_io_error(UvError(n)))
600 extern fn send_cb(req: *uvll::uv_udp_send_t, status: c_int) {
601 let req = Request::wrap(req);
602 assert!(status != uvll::ECANCELED);
603 let cx: &mut Ctx = unsafe { req.get_data() };
605 wakeup(&mut cx.task);
609 fn join_multicast(&mut self, multi: ip::IpAddr) -> Result<(), IoError> {
610 let _m = self.fire_homing_missile();
611 status_to_io_result(unsafe {
612 multi.to_str().with_c_str(|m_addr| {
613 uvll::uv_udp_set_membership(self.handle,
620 fn leave_multicast(&mut self, multi: ip::IpAddr) -> Result<(), IoError> {
621 let _m = self.fire_homing_missile();
622 status_to_io_result(unsafe {
623 multi.to_str().with_c_str(|m_addr| {
624 uvll::uv_udp_set_membership(self.handle,
626 uvll::UV_LEAVE_GROUP)
631 fn loop_multicast_locally(&mut self) -> Result<(), IoError> {
632 let _m = self.fire_homing_missile();
633 status_to_io_result(unsafe {
634 uvll::uv_udp_set_multicast_loop(self.handle,
639 fn dont_loop_multicast_locally(&mut self) -> Result<(), IoError> {
640 let _m = self.fire_homing_missile();
641 status_to_io_result(unsafe {
642 uvll::uv_udp_set_multicast_loop(self.handle,
647 fn multicast_time_to_live(&mut self, ttl: int) -> Result<(), IoError> {
648 let _m = self.fire_homing_missile();
649 status_to_io_result(unsafe {
650 uvll::uv_udp_set_multicast_ttl(self.handle,
655 fn time_to_live(&mut self, ttl: int) -> Result<(), IoError> {
656 let _m = self.fire_homing_missile();
657 status_to_io_result(unsafe {
658 uvll::uv_udp_set_ttl(self.handle, ttl as c_int)
662 fn hear_broadcasts(&mut self) -> Result<(), IoError> {
663 let _m = self.fire_homing_missile();
664 status_to_io_result(unsafe {
665 uvll::uv_udp_set_broadcast(self.handle,
670 fn ignore_broadcasts(&mut self) -> Result<(), IoError> {
671 let _m = self.fire_homing_missile();
672 status_to_io_result(unsafe {
673 uvll::uv_udp_set_broadcast(self.handle,
678 fn clone(&self) -> ~rtio::RtioUdpSocket {
681 home: self.home.clone(),
682 refcount: self.refcount.clone(),
683 write_access: self.write_access.clone(),
684 read_access: self.read_access.clone(),
685 } as ~rtio::RtioUdpSocket
689 impl Drop for UdpWatcher {
691 // Send ourselves home to close this handle (blocking while doing so).
692 let _m = self.fire_homing_missile();
693 if self.refcount.decrement() {
701 use std::rt::rtio::{RtioTcpStream, RtioTcpListener, RtioTcpAcceptor,
703 use std::io::test::{next_test_ip4, next_test_ip6};
705 use super::{UdpWatcher, TcpWatcher, TcpListener};
706 use super::super::local_loop;
709 fn connect_close_ip4() {
710 match TcpWatcher::connect(local_loop(), next_test_ip4()) {
712 Err(e) => assert_eq!(e.name(), ~"ECONNREFUSED"),
717 fn connect_close_ip6() {
718 match TcpWatcher::connect(local_loop(), next_test_ip6()) {
720 Err(e) => assert_eq!(e.name(), ~"ECONNREFUSED"),
725 fn udp_bind_close_ip4() {
726 match UdpWatcher::bind(local_loop(), next_test_ip4()) {
733 fn udp_bind_close_ip6() {
734 match UdpWatcher::bind(local_loop(), next_test_ip6()) {
742 let (port, chan) = Chan::new();
743 let addr = next_test_ip4();
746 let w = match TcpListener::bind(local_loop(), addr) {
747 Ok(w) => w, Err(e) => fail!("{:?}", e)
749 let mut w = match w.listen() {
750 Ok(w) => w, Err(e) => fail!("{:?}", e),
755 let mut buf = [0u8, ..10];
756 match stream.read(buf) {
757 Ok(10) => {} e => fail!("{:?}", e),
759 for i in range(0, 10u8) {
760 assert_eq!(buf[i], i + 1);
763 Err(e) => fail!("{:?}", e)
768 let mut w = match TcpWatcher::connect(local_loop(), addr) {
769 Ok(w) => w, Err(e) => fail!("{:?}", e)
771 match w.write([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) {
772 Ok(()) => {}, Err(e) => fail!("{:?}", e)
778 let (port, chan) = Chan::new();
779 let addr = next_test_ip6();
782 let w = match TcpListener::bind(local_loop(), addr) {
783 Ok(w) => w, Err(e) => fail!("{:?}", e)
785 let mut w = match w.listen() {
786 Ok(w) => w, Err(e) => fail!("{:?}", e),
791 let mut buf = [0u8, ..10];
792 match stream.read(buf) {
793 Ok(10) => {} e => fail!("{:?}", e),
795 for i in range(0, 10u8) {
796 assert_eq!(buf[i], i + 1);
799 Err(e) => fail!("{:?}", e)
804 let mut w = match TcpWatcher::connect(local_loop(), addr) {
805 Ok(w) => w, Err(e) => fail!("{:?}", e)
807 match w.write([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) {
808 Ok(()) => {}, Err(e) => fail!("{:?}", e)
814 let (port, chan) = Chan::new();
815 let client = next_test_ip4();
816 let server = next_test_ip4();
819 match UdpWatcher::bind(local_loop(), server) {
822 let mut buf = [0u8, ..10];
823 match w.recvfrom(buf) {
824 Ok((10, addr)) => assert_eq!(addr, client),
825 e => fail!("{:?}", e),
827 for i in range(0, 10u8) {
828 assert_eq!(buf[i], i + 1);
831 Err(e) => fail!("{:?}", e)
836 let mut w = match UdpWatcher::bind(local_loop(), client) {
837 Ok(w) => w, Err(e) => fail!("{:?}", e)
839 match w.sendto([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], server) {
840 Ok(()) => {}, Err(e) => fail!("{:?}", e)
846 let (port, chan) = Chan::new();
847 let client = next_test_ip6();
848 let server = next_test_ip6();
851 match UdpWatcher::bind(local_loop(), server) {
854 let mut buf = [0u8, ..10];
855 match w.recvfrom(buf) {
856 Ok((10, addr)) => assert_eq!(addr, client),
857 e => fail!("{:?}", e),
859 for i in range(0, 10u8) {
860 assert_eq!(buf[i], i + 1);
863 Err(e) => fail!("{:?}", e)
868 let mut w = match UdpWatcher::bind(local_loop(), client) {
869 Ok(w) => w, Err(e) => fail!("{:?}", e)
871 match w.sendto([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], server) {
872 Ok(()) => {}, Err(e) => fail!("{:?}", e)
877 fn test_read_read_read() {
878 let addr = next_test_ip4();
879 static MAX: uint = 5000;
880 let (port, chan) = Chan::new();
883 let listener = TcpListener::bind(local_loop(), addr).unwrap();
884 let mut acceptor = listener.listen().unwrap();
886 let mut stream = acceptor.accept().unwrap();
887 let buf = [1, .. 2048];
888 let mut total_bytes_written = 0;
889 while total_bytes_written < MAX {
890 assert!(stream.write(buf).is_ok());
891 uvdebug!("wrote bytes");
892 total_bytes_written += buf.len();
897 let mut stream = TcpWatcher::connect(local_loop(), addr).unwrap();
898 let mut buf = [0, .. 2048];
899 let mut total_bytes_read = 0;
900 while total_bytes_read < MAX {
901 let nread = stream.read(buf).unwrap();
902 total_bytes_read += nread;
903 for i in range(0u, nread) {
904 assert_eq!(buf[i], 1);
907 uvdebug!("read {} bytes total", total_bytes_read);
911 #[ignore(cfg(windows))] // FIXME(#10102) server never sees second packet
912 fn test_udp_twice() {
913 let server_addr = next_test_ip4();
914 let client_addr = next_test_ip4();
915 let (port, chan) = Chan::new();
918 let mut client = UdpWatcher::bind(local_loop(), client_addr).unwrap();
920 assert!(client.sendto([1], server_addr).is_ok());
921 assert!(client.sendto([2], server_addr).is_ok());
924 let mut server = UdpWatcher::bind(local_loop(), server_addr).unwrap();
928 let (nread1, src1) = server.recvfrom(buf1).unwrap();
929 let (nread2, src2) = server.recvfrom(buf2).unwrap();
930 assert_eq!(nread1, 1);
931 assert_eq!(nread2, 1);
932 assert_eq!(src1, client_addr);
933 assert_eq!(src2, client_addr);
934 assert_eq!(buf1[0], 1);
935 assert_eq!(buf2[0], 2);
939 fn test_udp_many_read() {
940 let server_out_addr = next_test_ip4();
941 let server_in_addr = next_test_ip4();
942 let client_out_addr = next_test_ip4();
943 let client_in_addr = next_test_ip4();
944 static MAX: uint = 500_000;
946 let (p1, c1) = Chan::new();
947 let (p2, c2) = Chan::new();
950 let l = local_loop();
951 let mut server_out = UdpWatcher::bind(l, server_out_addr).unwrap();
952 let mut server_in = UdpWatcher::bind(l, server_in_addr).unwrap();
953 let (port, chan) = (p1, c2);
956 let msg = [1, .. 2048];
957 let mut total_bytes_sent = 0;
961 assert!(server_out.sendto(msg, client_in_addr).is_ok());
962 total_bytes_sent += msg.len();
963 // check if the client has received enough
964 let res = server_in.recvfrom(buf);
965 assert!(res.is_ok());
966 let (nread, src) = res.unwrap();
967 assert_eq!(nread, 1);
968 assert_eq!(src, client_out_addr);
970 assert!(total_bytes_sent >= MAX);
973 let l = local_loop();
974 let mut client_out = UdpWatcher::bind(l, client_out_addr).unwrap();
975 let mut client_in = UdpWatcher::bind(l, client_in_addr).unwrap();
976 let (port, chan) = (p2, c1);
979 let mut total_bytes_recv = 0;
980 let mut buf = [0, .. 2048];
981 while total_bytes_recv < MAX {
983 assert!(client_out.sendto([1], server_in_addr).is_ok());
985 let res = client_in.recvfrom(buf);
986 assert!(res.is_ok());
987 let (nread, src) = res.unwrap();
988 assert_eq!(src, server_out_addr);
989 total_bytes_recv += nread;
990 for i in range(0u, nread) {
991 assert_eq!(buf[i], 1);
994 // tell the server we're done
995 assert!(client_out.sendto([0], server_in_addr).is_ok());
999 fn test_read_and_block() {
1000 let addr = next_test_ip4();
1001 let (port, chan) = Chan::<Port<()>>::new();
1004 let port2 = port.recv();
1005 let mut stream = TcpWatcher::connect(local_loop(), addr).unwrap();
1006 stream.write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1007 stream.write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1009 stream.write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1010 stream.write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1014 let listener = TcpListener::bind(local_loop(), addr).unwrap();
1015 let mut acceptor = listener.listen().unwrap();
1016 let (port2, chan2) = Chan::new();
1018 let mut stream = acceptor.accept().unwrap();
1019 let mut buf = [0, .. 2048];
1022 let mut current = 0;
1025 while current < expected {
1026 let nread = stream.read(buf).unwrap();
1027 for i in range(0u, nread) {
1028 let val = buf[i] as uint;
1029 assert_eq!(val, current % 8);
1037 // Make sure we had multiple reads
1042 fn test_simple_tcp_server_and_client_on_diff_threads() {
1043 let addr = next_test_ip4();
1046 let listener = TcpListener::bind(local_loop(), addr).unwrap();
1047 let mut acceptor = listener.listen().unwrap();
1048 let mut stream = acceptor.accept().unwrap();
1049 let mut buf = [0, .. 2048];
1050 let nread = stream.read(buf).unwrap();
1051 assert_eq!(nread, 8);
1052 for i in range(0u, nread) {
1053 assert_eq!(buf[i], i as u8);
1057 let mut stream = TcpWatcher::connect(local_loop(), addr);
1058 while stream.is_err() {
1059 stream = TcpWatcher::connect(local_loop(), addr);
1061 stream.unwrap().write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1064 #[should_fail] #[test]
1065 fn tcp_listener_fail_cleanup() {
1066 let addr = next_test_ip4();
1067 let w = TcpListener::bind(local_loop(), addr).unwrap();
1068 let _w = w.listen().unwrap();
1072 #[should_fail] #[test]
1073 fn tcp_stream_fail_cleanup() {
1074 let (port, chan) = Chan::new();
1075 let addr = next_test_ip4();
1078 let w = TcpListener::bind(local_loop(), addr).unwrap();
1079 let mut w = w.listen().unwrap();
1081 drop(w.accept().unwrap());
1084 let _w = TcpWatcher::connect(local_loop(), addr).unwrap();
1088 #[should_fail] #[test]
1089 fn udp_listener_fail_cleanup() {
1090 let addr = next_test_ip4();
1091 let _w = UdpWatcher::bind(local_loop(), addr).unwrap();
1095 #[should_fail] #[test]
1096 fn udp_fail_other_task() {
1097 let addr = next_test_ip4();
1098 let (port, chan) = Chan::new();
1100 // force the handle to be created on a different scheduler, failure in
1101 // the original task will force a homing operation back to this
1104 let w = UdpWatcher::bind(local_loop(), addr).unwrap();
1108 let _w = port.recv();