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: Sender<Result<~rtio::RtioTcpStream, IoError>>,
171 priv incoming: Receiver<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, &io.loop_, || {
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 (tx, rx) = channel();
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 loop_ = self.uv_loop();
502 let m = self.fire_homing_missile();
503 let _g = self.read_access.grant(m);
505 let a = match unsafe {
506 uvll::uv_udp_recv_start(self.handle, alloc_cb, recv_cb)
511 buf: Some(slice_to_uv_buf(buf)),
514 let handle = self.handle;
515 wait_until_woken_after(&mut cx.task, &loop_, || {
516 unsafe { uvll::set_data_for_uv_handle(handle, &cx) }
518 match cx.result.take_unwrap() {
520 Err(uv_error_to_io_error(UvError(n as c_int))),
521 (n, addr) => Ok((n as uint, addr.unwrap()))
524 n => Err(uv_error_to_io_error(UvError(n)))
528 extern fn alloc_cb(handle: *uvll::uv_udp_t,
529 _suggested_size: size_t,
533 cast::transmute(uvll::get_data_for_uv_handle(handle));
534 *buf = cx.buf.take().expect("recv alloc_cb called more than once")
538 extern fn recv_cb(handle: *uvll::uv_udp_t, nread: ssize_t, buf: *Buf,
539 addr: *libc::sockaddr, _flags: c_uint) {
540 assert!(nread != uvll::ECANCELED as ssize_t);
541 let cx: &mut Ctx = unsafe {
542 cast::transmute(uvll::get_data_for_uv_handle(handle))
545 // When there's no data to read the recv callback can be a no-op.
546 // This can happen if read returns EAGAIN/EWOULDBLOCK. By ignoring
547 // this we just drop back to kqueue and wait for the next callback.
549 cx.buf = Some(unsafe { *buf });
554 assert_eq!(uvll::uv_udp_recv_stop(handle), 0)
557 let cx: &mut Ctx = unsafe {
558 cast::transmute(uvll::get_data_for_uv_handle(handle))
560 let addr = if addr == ptr::null() {
563 let len = mem::size_of::<libc::sockaddr_storage>();
564 Some(sockaddr_to_addr(unsafe { cast::transmute(addr) }, len))
566 cx.result = Some((nread, addr));
567 wakeup(&mut cx.task);
571 fn sendto(&mut self, buf: &[u8], dst: ip::SocketAddr) -> Result<(), IoError> {
572 struct Ctx { task: Option<BlockedTask>, result: c_int }
574 let m = self.fire_homing_missile();
575 let loop_ = self.uv_loop();
576 let _g = self.write_access.grant(m);
578 let mut req = Request::new(uvll::UV_UDP_SEND);
579 let buf = slice_to_uv_buf(buf);
580 let (addr, _len) = addr_to_sockaddr(dst);
581 let result = unsafe {
582 let addr_p = &addr as *libc::sockaddr_storage;
583 uvll::uv_udp_send(req.handle, self.handle, [buf],
584 addr_p as *libc::sockaddr, send_cb)
587 return match result {
589 req.defuse(); // uv callback now owns this request
590 let mut cx = Ctx { task: None, result: 0 };
591 wait_until_woken_after(&mut cx.task, &loop_, || {
596 n => Err(uv_error_to_io_error(UvError(n)))
599 n => Err(uv_error_to_io_error(UvError(n)))
602 extern fn send_cb(req: *uvll::uv_udp_send_t, status: c_int) {
603 let req = Request::wrap(req);
604 assert!(status != uvll::ECANCELED);
605 let cx: &mut Ctx = unsafe { req.get_data() };
607 wakeup(&mut cx.task);
611 fn join_multicast(&mut self, multi: ip::IpAddr) -> Result<(), IoError> {
612 let _m = self.fire_homing_missile();
613 status_to_io_result(unsafe {
614 multi.to_str().with_c_str(|m_addr| {
615 uvll::uv_udp_set_membership(self.handle,
622 fn leave_multicast(&mut self, multi: ip::IpAddr) -> Result<(), IoError> {
623 let _m = self.fire_homing_missile();
624 status_to_io_result(unsafe {
625 multi.to_str().with_c_str(|m_addr| {
626 uvll::uv_udp_set_membership(self.handle,
628 uvll::UV_LEAVE_GROUP)
633 fn loop_multicast_locally(&mut self) -> Result<(), IoError> {
634 let _m = self.fire_homing_missile();
635 status_to_io_result(unsafe {
636 uvll::uv_udp_set_multicast_loop(self.handle,
641 fn dont_loop_multicast_locally(&mut self) -> Result<(), IoError> {
642 let _m = self.fire_homing_missile();
643 status_to_io_result(unsafe {
644 uvll::uv_udp_set_multicast_loop(self.handle,
649 fn multicast_time_to_live(&mut self, ttl: int) -> Result<(), IoError> {
650 let _m = self.fire_homing_missile();
651 status_to_io_result(unsafe {
652 uvll::uv_udp_set_multicast_ttl(self.handle,
657 fn time_to_live(&mut self, ttl: int) -> Result<(), IoError> {
658 let _m = self.fire_homing_missile();
659 status_to_io_result(unsafe {
660 uvll::uv_udp_set_ttl(self.handle, ttl as c_int)
664 fn hear_broadcasts(&mut self) -> Result<(), IoError> {
665 let _m = self.fire_homing_missile();
666 status_to_io_result(unsafe {
667 uvll::uv_udp_set_broadcast(self.handle,
672 fn ignore_broadcasts(&mut self) -> Result<(), IoError> {
673 let _m = self.fire_homing_missile();
674 status_to_io_result(unsafe {
675 uvll::uv_udp_set_broadcast(self.handle,
680 fn clone(&self) -> ~rtio::RtioUdpSocket {
683 home: self.home.clone(),
684 refcount: self.refcount.clone(),
685 write_access: self.write_access.clone(),
686 read_access: self.read_access.clone(),
687 } as ~rtio::RtioUdpSocket
691 impl Drop for UdpWatcher {
693 // Send ourselves home to close this handle (blocking while doing so).
694 let _m = self.fire_homing_missile();
695 if self.refcount.decrement() {
703 use std::rt::rtio::{RtioTcpStream, RtioTcpListener, RtioTcpAcceptor,
705 use std::io::test::{next_test_ip4, next_test_ip6};
707 use super::{UdpWatcher, TcpWatcher, TcpListener};
708 use super::super::local_loop;
711 fn connect_close_ip4() {
712 match TcpWatcher::connect(local_loop(), next_test_ip4()) {
714 Err(e) => assert_eq!(e.name(), ~"ECONNREFUSED"),
719 fn connect_close_ip6() {
720 match TcpWatcher::connect(local_loop(), next_test_ip6()) {
722 Err(e) => assert_eq!(e.name(), ~"ECONNREFUSED"),
727 fn udp_bind_close_ip4() {
728 match UdpWatcher::bind(local_loop(), next_test_ip4()) {
735 fn udp_bind_close_ip6() {
736 match UdpWatcher::bind(local_loop(), next_test_ip6()) {
744 let (tx, rx) = channel();
745 let addr = next_test_ip4();
748 let w = match TcpListener::bind(local_loop(), addr) {
749 Ok(w) => w, Err(e) => fail!("{:?}", e)
751 let mut w = match w.listen() {
752 Ok(w) => w, Err(e) => fail!("{:?}", e),
757 let mut buf = [0u8, ..10];
758 match stream.read(buf) {
759 Ok(10) => {} e => fail!("{:?}", e),
761 for i in range(0, 10u8) {
762 assert_eq!(buf[i], i + 1);
765 Err(e) => fail!("{:?}", e)
770 let mut w = match TcpWatcher::connect(local_loop(), addr) {
771 Ok(w) => w, Err(e) => fail!("{:?}", e)
773 match w.write([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) {
774 Ok(()) => {}, Err(e) => fail!("{:?}", e)
780 let (tx, rx) = channel();
781 let addr = next_test_ip6();
784 let w = match TcpListener::bind(local_loop(), addr) {
785 Ok(w) => w, Err(e) => fail!("{:?}", e)
787 let mut w = match w.listen() {
788 Ok(w) => w, Err(e) => fail!("{:?}", e),
793 let mut buf = [0u8, ..10];
794 match stream.read(buf) {
795 Ok(10) => {} e => fail!("{:?}", e),
797 for i in range(0, 10u8) {
798 assert_eq!(buf[i], i + 1);
801 Err(e) => fail!("{:?}", e)
806 let mut w = match TcpWatcher::connect(local_loop(), addr) {
807 Ok(w) => w, Err(e) => fail!("{:?}", e)
809 match w.write([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) {
810 Ok(()) => {}, Err(e) => fail!("{:?}", e)
816 let (tx, rx) = channel();
817 let client = next_test_ip4();
818 let server = next_test_ip4();
821 match UdpWatcher::bind(local_loop(), server) {
824 let mut buf = [0u8, ..10];
825 match w.recvfrom(buf) {
826 Ok((10, addr)) => assert_eq!(addr, client),
827 e => fail!("{:?}", e),
829 for i in range(0, 10u8) {
830 assert_eq!(buf[i], i + 1);
833 Err(e) => fail!("{:?}", e)
838 let mut w = match UdpWatcher::bind(local_loop(), client) {
839 Ok(w) => w, Err(e) => fail!("{:?}", e)
841 match w.sendto([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], server) {
842 Ok(()) => {}, Err(e) => fail!("{:?}", e)
848 let (tx, rx) = channel();
849 let client = next_test_ip6();
850 let server = next_test_ip6();
853 match UdpWatcher::bind(local_loop(), server) {
856 let mut buf = [0u8, ..10];
857 match w.recvfrom(buf) {
858 Ok((10, addr)) => assert_eq!(addr, client),
859 e => fail!("{:?}", e),
861 for i in range(0, 10u8) {
862 assert_eq!(buf[i], i + 1);
865 Err(e) => fail!("{:?}", e)
870 let mut w = match UdpWatcher::bind(local_loop(), client) {
871 Ok(w) => w, Err(e) => fail!("{:?}", e)
873 match w.sendto([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], server) {
874 Ok(()) => {}, Err(e) => fail!("{:?}", e)
879 fn test_read_read_read() {
880 let addr = next_test_ip4();
881 static MAX: uint = 5000;
882 let (tx, rx) = channel();
885 let listener = TcpListener::bind(local_loop(), addr).unwrap();
886 let mut acceptor = listener.listen().unwrap();
888 let mut stream = acceptor.accept().unwrap();
889 let buf = [1, .. 2048];
890 let mut total_bytes_written = 0;
891 while total_bytes_written < MAX {
892 assert!(stream.write(buf).is_ok());
893 uvdebug!("wrote bytes");
894 total_bytes_written += buf.len();
899 let mut stream = TcpWatcher::connect(local_loop(), addr).unwrap();
900 let mut buf = [0, .. 2048];
901 let mut total_bytes_read = 0;
902 while total_bytes_read < MAX {
903 let nread = stream.read(buf).unwrap();
904 total_bytes_read += nread;
905 for i in range(0u, nread) {
906 assert_eq!(buf[i], 1);
909 uvdebug!("read {} bytes total", total_bytes_read);
913 #[ignore(cfg(windows))] // FIXME(#10102) server never sees second packet
914 fn test_udp_twice() {
915 let server_addr = next_test_ip4();
916 let client_addr = next_test_ip4();
917 let (tx, rx) = channel();
920 let mut client = UdpWatcher::bind(local_loop(), client_addr).unwrap();
922 assert!(client.sendto([1], server_addr).is_ok());
923 assert!(client.sendto([2], server_addr).is_ok());
926 let mut server = UdpWatcher::bind(local_loop(), server_addr).unwrap();
930 let (nread1, src1) = server.recvfrom(buf1).unwrap();
931 let (nread2, src2) = server.recvfrom(buf2).unwrap();
932 assert_eq!(nread1, 1);
933 assert_eq!(nread2, 1);
934 assert_eq!(src1, client_addr);
935 assert_eq!(src2, client_addr);
936 assert_eq!(buf1[0], 1);
937 assert_eq!(buf2[0], 2);
941 fn test_udp_many_read() {
942 let server_out_addr = next_test_ip4();
943 let server_in_addr = next_test_ip4();
944 let client_out_addr = next_test_ip4();
945 let client_in_addr = next_test_ip4();
946 static MAX: uint = 500_000;
948 let (tx1, rx1) = channel::<()>();
949 let (tx2, rx2) = channel::<()>();
952 let l = local_loop();
953 let mut server_out = UdpWatcher::bind(l, server_out_addr).unwrap();
954 let mut server_in = UdpWatcher::bind(l, server_in_addr).unwrap();
955 let (tx, rx) = (tx2, rx1);
958 let msg = [1, .. 2048];
959 let mut total_bytes_sent = 0;
963 assert!(server_out.sendto(msg, client_in_addr).is_ok());
964 total_bytes_sent += msg.len();
965 // check if the client has received enough
966 let res = server_in.recvfrom(buf);
967 assert!(res.is_ok());
968 let (nread, src) = res.unwrap();
969 assert_eq!(nread, 1);
970 assert_eq!(src, client_out_addr);
972 assert!(total_bytes_sent >= MAX);
975 let l = local_loop();
976 let mut client_out = UdpWatcher::bind(l, client_out_addr).unwrap();
977 let mut client_in = UdpWatcher::bind(l, client_in_addr).unwrap();
978 let (tx, rx) = (tx1, rx2);
981 let mut total_bytes_recv = 0;
982 let mut buf = [0, .. 2048];
983 while total_bytes_recv < MAX {
985 assert!(client_out.sendto([1], server_in_addr).is_ok());
987 let res = client_in.recvfrom(buf);
988 assert!(res.is_ok());
989 let (nread, src) = res.unwrap();
990 assert_eq!(src, server_out_addr);
991 total_bytes_recv += nread;
992 for i in range(0u, nread) {
993 assert_eq!(buf[i], 1);
996 // tell the server we're done
997 assert!(client_out.sendto([0], server_in_addr).is_ok());
1001 fn test_read_and_block() {
1002 let addr = next_test_ip4();
1003 let (tx, rx) = channel::<Receiver<()>>();
1007 let mut stream = TcpWatcher::connect(local_loop(), addr).unwrap();
1008 stream.write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1009 stream.write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1011 stream.write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1012 stream.write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1016 let listener = TcpListener::bind(local_loop(), addr).unwrap();
1017 let mut acceptor = listener.listen().unwrap();
1018 let (tx2, rx2) = channel();
1020 let mut stream = acceptor.accept().unwrap();
1021 let mut buf = [0, .. 2048];
1024 let mut current = 0;
1027 while current < expected {
1028 let nread = stream.read(buf).unwrap();
1029 for i in range(0u, nread) {
1030 let val = buf[i] as uint;
1031 assert_eq!(val, current % 8);
1039 // Make sure we had multiple reads
1044 fn test_simple_tcp_server_and_client_on_diff_threads() {
1045 let addr = next_test_ip4();
1048 let listener = TcpListener::bind(local_loop(), addr).unwrap();
1049 let mut acceptor = listener.listen().unwrap();
1050 let mut stream = acceptor.accept().unwrap();
1051 let mut buf = [0, .. 2048];
1052 let nread = stream.read(buf).unwrap();
1053 assert_eq!(nread, 8);
1054 for i in range(0u, nread) {
1055 assert_eq!(buf[i], i as u8);
1059 let mut stream = TcpWatcher::connect(local_loop(), addr);
1060 while stream.is_err() {
1061 stream = TcpWatcher::connect(local_loop(), addr);
1063 stream.unwrap().write([0, 1, 2, 3, 4, 5, 6, 7]).unwrap();
1066 #[should_fail] #[test]
1067 fn tcp_listener_fail_cleanup() {
1068 let addr = next_test_ip4();
1069 let w = TcpListener::bind(local_loop(), addr).unwrap();
1070 let _w = w.listen().unwrap();
1074 #[should_fail] #[test]
1075 fn tcp_stream_fail_cleanup() {
1076 let (tx, rx) = channel();
1077 let addr = next_test_ip4();
1080 let w = TcpListener::bind(local_loop(), addr).unwrap();
1081 let mut w = w.listen().unwrap();
1083 drop(w.accept().unwrap());
1086 let _w = TcpWatcher::connect(local_loop(), addr).unwrap();
1090 #[should_fail] #[test]
1091 fn udp_listener_fail_cleanup() {
1092 let addr = next_test_ip4();
1093 let _w = UdpWatcher::bind(local_loop(), addr).unwrap();
1097 #[should_fail] #[test]
1098 fn udp_fail_other_task() {
1099 let addr = next_test_ip4();
1100 let (tx, rx) = channel();
1102 // force the handle to be created on a different scheduler, failure in
1103 // the original task will force a homing operation back to this
1106 let w = UdpWatcher::bind(local_loop(), addr).unwrap();