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| <section id='main' class="content"><pre class="line-numbers"><span id="1"> 1</span> |
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| <span id="767">767</span> |
| <span id="768">768</span> |
| <span id="769">769</span> |
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| <span id="771">771</span> |
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| <span id="783">783</span> |
| <span id="784">784</span> |
| <span id="785">785</span> |
| <span id="786">786</span> |
| <span id="787">787</span> |
| <span id="788">788</span> |
| <span id="789">789</span> |
| <span id="790">790</span> |
| <span id="791">791</span> |
| <span id="792">792</span> |
| <span id="793">793</span> |
| <span id="794">794</span> |
| <span id="795">795</span> |
| <span id="796">796</span> |
| <span id="797">797</span> |
| <span id="798">798</span> |
| <span id="799">799</span> |
| <span id="800">800</span> |
| <span id="801">801</span> |
| <span id="802">802</span> |
| <span id="803">803</span> |
| <span id="804">804</span> |
| <span id="805">805</span> |
| <span id="806">806</span> |
| <span id="807">807</span> |
| <span id="808">808</span> |
| <span id="809">809</span> |
| <span id="810">810</span> |
| <span id="811">811</span> |
| <span id="812">812</span> |
| <span id="813">813</span> |
| <span id="814">814</span> |
| <span id="815">815</span> |
| </pre><pre class="rust "> |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fmt</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">io</span>::{<span class="self">self</span>, <span class="ident">Read</span>, <span class="ident">Write</span>}; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">mem</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">net</span>::{<span class="self">self</span>, <span class="ident">SocketAddr</span>, <span class="ident">Shutdown</span>}; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">time</span>::<span class="ident">Duration</span>; |
| |
| <span class="kw">use</span> <span class="ident">bytes</span>::{<span class="ident">Buf</span>, <span class="ident">BufMut</span>}; |
| <span class="kw">use</span> <span class="ident">futures</span>::<span class="ident">stream</span>::<span class="ident">Stream</span>; |
| <span class="kw">use</span> <span class="ident">futures</span>::<span class="ident">sync</span>::<span class="ident">oneshot</span>; |
| <span class="kw">use</span> <span class="ident">futures</span>::{<span class="ident">Future</span>, <span class="ident">Poll</span>, <span class="ident">Async</span>}; |
| <span class="kw">use</span> <span class="ident">iovec</span>::<span class="ident">IoVec</span>; |
| <span class="kw">use</span> <span class="ident">mio</span>; |
| <span class="kw">use</span> <span class="ident">tokio_io</span>::{<span class="ident">AsyncRead</span>, <span class="ident">AsyncWrite</span>}; |
| |
| <span class="kw">use</span> <span class="ident">reactor</span>::{<span class="ident">Handle</span>, <span class="ident">PollEvented</span>}; |
| |
| <span class="doccomment">/// An I/O object representing a TCP socket listening for incoming connections.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This object can be converted into a stream of incoming connections for</span> |
| <span class="doccomment">/// various forms of processing.</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">TcpListener</span> { |
| <span class="ident">io</span>: <span class="ident">PollEvented</span><span class="op"><</span><span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpListener</span><span class="op">></span>, |
| <span class="ident">pending_accept</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">oneshot</span>::<span class="ident">Receiver</span><span class="op"><</span><span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>(<span class="ident">TcpStream</span>, <span class="ident">SocketAddr</span>)<span class="op">>></span><span class="op">></span>, |
| } |
| |
| <span class="doccomment">/// Stream returned by the `TcpListener::incoming` function representing the</span> |
| <span class="doccomment">/// stream of sockets received from a listener.</span> |
| <span class="attribute">#[<span class="ident">must_use</span> <span class="op">=</span> <span class="string">"streams do nothing unless polled"</span>]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Incoming</span> { |
| <span class="ident">inner</span>: <span class="ident">TcpListener</span>, |
| } |
| |
| <span class="kw">impl</span> <span class="ident">TcpListener</span> { |
| <span class="doccomment">/// Create a new TCP listener associated with this event loop.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The TCP listener will bind to the provided `addr` address, if available.</span> |
| <span class="doccomment">/// If the result is `Ok`, the socket has successfully bound.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">bind</span>(<span class="ident">addr</span>: <span class="kw-2">&</span><span class="ident">SocketAddr</span>, <span class="ident">handle</span>: <span class="kw-2">&</span><span class="ident">Handle</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">TcpListener</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">l</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpListener</span>::<span class="ident">bind</span>(<span class="ident">addr</span>)); |
| <span class="ident">TcpListener</span>::<span class="ident">new</span>(<span class="ident">l</span>, <span class="ident">handle</span>) |
| } |
| |
| <span class="doccomment">/// Attempt to accept a connection and create a new connected `TcpStream` if</span> |
| <span class="doccomment">/// successful.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This function will attempt an accept operation, but will not block</span> |
| <span class="doccomment">/// waiting for it to complete. If the operation would block then a "would</span> |
| <span class="doccomment">/// block" error is returned. Additionally, if this method would block, it</span> |
| <span class="doccomment">/// registers the current task to receive a notification when it would</span> |
| <span class="doccomment">/// otherwise not block.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Note that typically for simple usage it's easier to treat incoming</span> |
| <span class="doccomment">/// connections as a `Stream` of `TcpStream`s with the `incoming` method</span> |
| <span class="doccomment">/// below.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// # Panics</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This function will panic if it is called outside the context of a</span> |
| <span class="doccomment">/// future's task. It's recommended to only call this from the</span> |
| <span class="doccomment">/// implementation of a `Future::poll`, if necessary.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">accept</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>(<span class="ident">TcpStream</span>, <span class="ident">SocketAddr</span>)<span class="op">></span> { |
| <span class="kw">loop</span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="kw-2">mut</span> <span class="ident">pending</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">pending_accept</span>.<span class="ident">take</span>() { |
| <span class="kw">match</span> <span class="ident">pending</span>.<span class="ident">poll</span>().<span class="ident">expect</span>(<span class="string">"shouldn't be canceled"</span>) { |
| <span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">pending_accept</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">pending</span>); |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span>.<span class="ident">into</span>()) |
| }, |
| <span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">r</span>) <span class="op">=></span> <span class="kw">return</span> <span class="ident">r</span>, |
| } |
| } |
| |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">poll_read</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">io</span>::<span class="ident">Error</span>::<span class="ident">new</span>(<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span>, <span class="string">"not ready"</span>)) |
| } |
| |
| <span class="kw">match</span> <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">accept</span>() { |
| <span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">need_read</span>(); |
| } |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">e</span>) |
| }, |
| <span class="prelude-val">Ok</span>((<span class="ident">sock</span>, <span class="ident">addr</span>)) <span class="op">=></span> { |
| <span class="comment">// Fast path if we haven't left the event loop</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">handle</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">remote</span>().<span class="ident">handle</span>() { |
| <span class="kw">let</span> <span class="ident">io</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">PollEvented</span>::<span class="ident">new</span>(<span class="ident">sock</span>, <span class="kw-2">&</span><span class="ident">handle</span>)); |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>((<span class="ident">TcpStream</span> { <span class="ident">io</span>: <span class="ident">io</span> }, <span class="ident">addr</span>)) |
| } |
| |
| <span class="comment">// If we're off the event loop then send the socket back</span> |
| <span class="comment">// over there to get registered and then we'll get it back</span> |
| <span class="comment">// eventually.</span> |
| <span class="kw">let</span> (<span class="ident">tx</span>, <span class="ident">rx</span>) <span class="op">=</span> <span class="ident">oneshot</span>::<span class="ident">channel</span>(); |
| <span class="kw">let</span> <span class="ident">remote</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">remote</span>().<span class="ident">clone</span>(); |
| <span class="ident">remote</span>.<span class="ident">spawn</span>(<span class="kw">move</span> <span class="op">|</span><span class="ident">handle</span><span class="op">|</span> { |
| <span class="kw">let</span> <span class="ident">res</span> <span class="op">=</span> <span class="ident">PollEvented</span>::<span class="ident">new</span>(<span class="ident">sock</span>, <span class="ident">handle</span>) |
| .<span class="ident">map</span>(<span class="kw">move</span> <span class="op">|</span><span class="ident">io</span><span class="op">|</span> { |
| (<span class="ident">TcpStream</span> { <span class="ident">io</span>: <span class="ident">io</span> }, <span class="ident">addr</span>) |
| }); |
| <span class="ident">drop</span>(<span class="ident">tx</span>.<span class="ident">send</span>(<span class="ident">res</span>)); |
| <span class="prelude-val">Ok</span>(()) |
| }); |
| <span class="self">self</span>.<span class="ident">pending_accept</span> <span class="op">=</span> <span class="prelude-val">Some</span>(<span class="ident">rx</span>); |
| <span class="comment">// continue to polling the `rx` at the beginning of the loop</span> |
| } |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Like `accept`, except that it returns a raw `std::net::TcpStream`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The stream is *in blocking mode*, and is not associated with the Tokio</span> |
| <span class="doccomment">/// event loop.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">accept_std</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>(<span class="ident">net</span>::<span class="ident">TcpStream</span>, <span class="ident">SocketAddr</span>)<span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">poll_read</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">io</span>::<span class="ident">Error</span>::<span class="ident">new</span>(<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span>, <span class="string">"not ready"</span>)) |
| } |
| |
| <span class="kw">match</span> <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">accept_std</span>() { |
| <span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> { |
| <span class="kw">if</span> <span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">need_read</span>(); |
| } |
| <span class="prelude-val">Err</span>(<span class="ident">e</span>) |
| }, |
| <span class="prelude-val">Ok</span>((<span class="ident">sock</span>, <span class="ident">addr</span>)) <span class="op">=></span> <span class="prelude-val">Ok</span>((<span class="ident">sock</span>, <span class="ident">addr</span>)), |
| } |
| } |
| |
| <span class="doccomment">/// Create a new TCP listener from the standard library's TCP listener.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This method can be used when the `Handle::tcp_listen` method isn't</span> |
| <span class="doccomment">/// sufficient because perhaps some more configuration is needed in terms of</span> |
| <span class="doccomment">/// before the calls to `bind` and `listen`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This API is typically paired with the `net2` crate and the `TcpBuilder`</span> |
| <span class="doccomment">/// type to build up and customize a listener before it's shipped off to the</span> |
| <span class="doccomment">/// backing event loop. This allows configuration of options like</span> |
| <span class="doccomment">/// `SO_REUSEPORT`, binding to multiple addresses, etc.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The `addr` argument here is one of the addresses that `listener` is</span> |
| <span class="doccomment">/// bound to and the listener will only be guaranteed to accept connections</span> |
| <span class="doccomment">/// of the same address type currently.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Finally, the `handle` argument is the event loop that this listener will</span> |
| <span class="doccomment">/// be bound to.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The platform specific behavior of this function looks like:</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// * On Unix, the socket is placed into nonblocking mode and connections</span> |
| <span class="doccomment">/// can be accepted as normal</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// * On Windows, the address is stored internally and all future accepts</span> |
| <span class="doccomment">/// will only be for the same IP version as `addr` specified. That is, if</span> |
| <span class="doccomment">/// `addr` is an IPv4 address then all sockets accepted will be IPv4 as</span> |
| <span class="doccomment">/// well (same for IPv6).</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">from_listener</span>(<span class="ident">listener</span>: <span class="ident">net</span>::<span class="ident">TcpListener</span>, |
| <span class="ident">addr</span>: <span class="kw-2">&</span><span class="ident">SocketAddr</span>, |
| <span class="ident">handle</span>: <span class="kw-2">&</span><span class="ident">Handle</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">TcpListener</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">l</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpListener</span>::<span class="ident">from_listener</span>(<span class="ident">listener</span>, <span class="ident">addr</span>)); |
| <span class="ident">TcpListener</span>::<span class="ident">new</span>(<span class="ident">l</span>, <span class="ident">handle</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">listener</span>: <span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpListener</span>, <span class="ident">handle</span>: <span class="kw-2">&</span><span class="ident">Handle</span>) |
| <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">TcpListener</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">io</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">PollEvented</span>::<span class="ident">new</span>(<span class="ident">listener</span>, <span class="ident">handle</span>)); |
| <span class="prelude-val">Ok</span>(<span class="ident">TcpListener</span> { <span class="ident">io</span>: <span class="ident">io</span>, <span class="ident">pending_accept</span>: <span class="prelude-val">None</span> }) |
| } |
| |
| <span class="doccomment">/// Test whether this socket is ready to be read or not.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">poll_read</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Async</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">poll_read</span>() |
| } |
| |
| <span class="doccomment">/// Returns the local address that this listener is bound to.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This can be useful, for example, when binding to port 0 to figure out</span> |
| <span class="doccomment">/// which port was actually bound.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">local_addr</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">SocketAddr</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">local_addr</span>() |
| } |
| |
| <span class="doccomment">/// Consumes this listener, returning a stream of the sockets this listener</span> |
| <span class="doccomment">/// accepts.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This method returns an implementation of the `Stream` trait which</span> |
| <span class="doccomment">/// resolves to the sockets the are accepted on this listener.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">incoming</span>(<span class="self">self</span>) <span class="op">-></span> <span class="ident">Incoming</span> { |
| <span class="ident">Incoming</span> { <span class="ident">inner</span>: <span class="self">self</span> } |
| } |
| |
| <span class="doccomment">/// Sets the value for the `IP_TTL` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This value sets the time-to-live field that is used in every packet sent</span> |
| <span class="doccomment">/// from this socket.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_ttl</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">ttl</span>: <span class="ident">u32</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_ttl</span>(<span class="ident">ttl</span>) |
| } |
| |
| <span class="doccomment">/// Gets the value of the `IP_TTL` option for this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// For more information about this option, see [`set_ttl`][link].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [link]: #method.set_ttl</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">ttl</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">ttl</span>() |
| } |
| |
| <span class="doccomment">/// Sets the value for the `IPV6_V6ONLY` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// If this is set to `true` then the socket is restricted to sending and</span> |
| <span class="doccomment">/// receiving IPv6 packets only. In this case two IPv4 and IPv6 applications</span> |
| <span class="doccomment">/// can bind the same port at the same time.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// If this is set to `false` then the socket can be used to send and</span> |
| <span class="doccomment">/// receive packets from an IPv4-mapped IPv6 address.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_only_v6</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">only_v6</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_only_v6</span>(<span class="ident">only_v6</span>) |
| } |
| |
| <span class="doccomment">/// Gets the value of the `IPV6_V6ONLY` option for this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// For more information about this option, see [`set_only_v6`][link].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [link]: #method.set_only_v6</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">only_v6</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">bool</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">only_v6</span>() |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">TcpListener</span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">fmt</span>(<span class="ident">f</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Stream</span> <span class="kw">for</span> <span class="ident">Incoming</span> { |
| <span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> (<span class="ident">TcpStream</span>, <span class="ident">SocketAddr</span>); |
| <span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">io</span>::<span class="ident">Error</span>; |
| |
| <span class="kw">fn</span> <span class="ident">poll</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="self">Self</span>::<span class="ident">Item</span><span class="op">></span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="prelude-val">Some</span>(<span class="macro">try_nb</span><span class="macro">!</span>(<span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">accept</span>())))) |
| } |
| } |
| |
| <span class="doccomment">/// An I/O object representing a TCP stream connected to a remote endpoint.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// A TCP stream can either be created by connecting to an endpoint or by</span> |
| <span class="doccomment">/// accepting a connection from a listener. Inside the stream is access to the</span> |
| <span class="doccomment">/// raw underlying I/O object as well as streams for the read/write</span> |
| <span class="doccomment">/// notifications on the stream itself.</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">TcpStream</span> { |
| <span class="ident">io</span>: <span class="ident">PollEvented</span><span class="op"><</span><span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpStream</span><span class="op">></span>, |
| } |
| |
| <span class="doccomment">/// Future returned by `TcpStream::connect` which will resolve to a `TcpStream`</span> |
| <span class="doccomment">/// when the stream is connected.</span> |
| <span class="attribute">#[<span class="ident">must_use</span> <span class="op">=</span> <span class="string">"futures do nothing unless polled"</span>]</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">TcpStreamNew</span> { |
| <span class="ident">inner</span>: <span class="ident">TcpStreamNewState</span>, |
| } |
| |
| <span class="attribute">#[<span class="ident">must_use</span> <span class="op">=</span> <span class="string">"futures do nothing unless polled"</span>]</span> |
| <span class="kw">enum</span> <span class="ident">TcpStreamNewState</span> { |
| <span class="ident">Waiting</span>(<span class="ident">TcpStream</span>), |
| <span class="ident">Error</span>(<span class="ident">io</span>::<span class="ident">Error</span>), |
| <span class="ident">Empty</span>, |
| } |
| |
| <span class="kw">impl</span> <span class="ident">TcpStream</span> { |
| <span class="doccomment">/// Create a new TCP stream connected to the specified address.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This function will create a new TCP socket and attempt to connect it to</span> |
| <span class="doccomment">/// the `addr` provided. The returned future will be resolved once the</span> |
| <span class="doccomment">/// stream has successfully connected. If an error happens during the</span> |
| <span class="doccomment">/// connection or during the socket creation, that error will be returned to</span> |
| <span class="doccomment">/// the future instead.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">connect</span>(<span class="ident">addr</span>: <span class="kw-2">&</span><span class="ident">SocketAddr</span>, <span class="ident">handle</span>: <span class="kw-2">&</span><span class="ident">Handle</span>) <span class="op">-></span> <span class="ident">TcpStreamNew</span> { |
| <span class="kw">let</span> <span class="ident">inner</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpStream</span>::<span class="ident">connect</span>(<span class="ident">addr</span>) { |
| <span class="prelude-val">Ok</span>(<span class="ident">tcp</span>) <span class="op">=></span> <span class="ident">TcpStream</span>::<span class="ident">new</span>(<span class="ident">tcp</span>, <span class="ident">handle</span>), |
| <span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="ident">TcpStreamNewState</span>::<span class="ident">Error</span>(<span class="ident">e</span>), |
| }; |
| <span class="ident">TcpStreamNew</span> { <span class="ident">inner</span>: <span class="ident">inner</span> } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">connected_stream</span>: <span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpStream</span>, <span class="ident">handle</span>: <span class="kw-2">&</span><span class="ident">Handle</span>) |
| <span class="op">-></span> <span class="ident">TcpStreamNewState</span> { |
| <span class="kw">match</span> <span class="ident">PollEvented</span>::<span class="ident">new</span>(<span class="ident">connected_stream</span>, <span class="ident">handle</span>) { |
| <span class="prelude-val">Ok</span>(<span class="ident">io</span>) <span class="op">=></span> <span class="ident">TcpStreamNewState</span>::<span class="ident">Waiting</span>(<span class="ident">TcpStream</span> { <span class="ident">io</span>: <span class="ident">io</span> }), |
| <span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="ident">TcpStreamNewState</span>::<span class="ident">Error</span>(<span class="ident">e</span>), |
| } |
| } |
| |
| <span class="doccomment">/// Create a new `TcpStream` from a `net::TcpStream`.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This function will convert a TCP stream in the standard library to a TCP</span> |
| <span class="doccomment">/// stream ready to be used with the provided event loop handle. The object</span> |
| <span class="doccomment">/// returned is associated with the event loop and ready to perform I/O.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">from_stream</span>(<span class="ident">stream</span>: <span class="ident">net</span>::<span class="ident">TcpStream</span>, <span class="ident">handle</span>: <span class="kw-2">&</span><span class="ident">Handle</span>) |
| <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">TcpStream</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">inner</span> <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpStream</span>::<span class="ident">from_stream</span>(<span class="ident">stream</span>)); |
| <span class="prelude-val">Ok</span>(<span class="ident">TcpStream</span> { |
| <span class="ident">io</span>: <span class="macro">try</span><span class="macro">!</span>(<span class="ident">PollEvented</span>::<span class="ident">new</span>(<span class="ident">inner</span>, <span class="ident">handle</span>)), |
| }) |
| } |
| |
| <span class="doccomment">/// Creates a new `TcpStream` from the pending socket inside the given</span> |
| <span class="doccomment">/// `std::net::TcpStream`, connecting it to the address specified.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This constructor allows configuring the socket before it's actually</span> |
| <span class="doccomment">/// connected, and this function will transfer ownership to the returned</span> |
| <span class="doccomment">/// `TcpStream` if successful. An unconnected `TcpStream` can be created</span> |
| <span class="doccomment">/// with the `net2::TcpBuilder` type (and also configured via that route).</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// The platform specific behavior of this function looks like:</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// * On Unix, the socket is placed into nonblocking mode and then a</span> |
| <span class="doccomment">/// `connect` call is issued.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// * On Windows, the address is stored internally and the connect operation</span> |
| <span class="doccomment">/// is issued when the returned `TcpStream` is registered with an event</span> |
| <span class="doccomment">/// loop. Note that on Windows you must `bind` a socket before it can be</span> |
| <span class="doccomment">/// connected, so if a custom `TcpBuilder` is used it should be bound</span> |
| <span class="doccomment">/// (perhaps to `INADDR_ANY`) before this method is called.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">connect_stream</span>(<span class="ident">stream</span>: <span class="ident">net</span>::<span class="ident">TcpStream</span>, |
| <span class="ident">addr</span>: <span class="kw-2">&</span><span class="ident">SocketAddr</span>, |
| <span class="ident">handle</span>: <span class="kw-2">&</span><span class="ident">Handle</span>) |
| <span class="op">-></span> <span class="ident">Box</span><span class="op"><</span><span class="ident">Future</span><span class="op"><</span><span class="ident">Item</span><span class="op">=</span><span class="ident">TcpStream</span>, <span class="ident">Error</span><span class="op">=</span><span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> <span class="op">+</span> <span class="ident">Send</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">state</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">mio</span>::<span class="ident">net</span>::<span class="ident">TcpStream</span>::<span class="ident">connect_stream</span>(<span class="ident">stream</span>, <span class="ident">addr</span>) { |
| <span class="prelude-val">Ok</span>(<span class="ident">tcp</span>) <span class="op">=></span> <span class="ident">TcpStream</span>::<span class="ident">new</span>(<span class="ident">tcp</span>, <span class="ident">handle</span>), |
| <span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="ident">TcpStreamNewState</span>::<span class="ident">Error</span>(<span class="ident">e</span>), |
| }; |
| <span class="ident">Box</span>::<span class="ident">new</span>(<span class="ident">state</span>) |
| } |
| |
| <span class="doccomment">/// Test whether this socket is ready to be read or not.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// If the socket is *not* readable then the current task is scheduled to</span> |
| <span class="doccomment">/// get a notification when the socket does become readable. That is, this</span> |
| <span class="doccomment">/// is only suitable for calling in a `Future::poll` method and will</span> |
| <span class="doccomment">/// automatically handle ensuring a retry once the socket is readable again.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">poll_read</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Async</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">poll_read</span>() |
| } |
| |
| <span class="doccomment">/// Test whether this socket is ready to be written to or not.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// If the socket is *not* writable then the current task is scheduled to</span> |
| <span class="doccomment">/// get a notification when the socket does become writable. That is, this</span> |
| <span class="doccomment">/// is only suitable for calling in a `Future::poll` method and will</span> |
| <span class="doccomment">/// automatically handle ensuring a retry once the socket is writable again.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">poll_write</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Async</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">poll_write</span>() |
| } |
| |
| <span class="doccomment">/// Returns the local address that this stream is bound to.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">local_addr</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">SocketAddr</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">local_addr</span>() |
| } |
| |
| <span class="doccomment">/// Returns the remote address that this stream is connected to.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">peer_addr</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">SocketAddr</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">peer_addr</span>() |
| } |
| |
| <span class="doccomment">/// Receives data on the socket from the remote address to which it is</span> |
| <span class="doccomment">/// connected, without removing that data from the queue. On success,</span> |
| <span class="doccomment">/// returns the number of bytes peeked.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Successive calls return the same data. This is accomplished by passing</span> |
| <span class="doccomment">/// `MSG_PEEK` as a flag to the underlying recv system call.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">peek</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">poll_read</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span>.<span class="ident">into</span>()) |
| } |
| <span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">peek</span>(<span class="ident">buf</span>); |
| <span class="kw">if</span> <span class="ident">is_wouldblock</span>(<span class="kw-2">&</span><span class="ident">r</span>) { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">need_read</span>(); |
| } |
| <span class="kw">return</span> <span class="ident">r</span> |
| |
| } |
| |
| <span class="doccomment">/// Shuts down the read, write, or both halves of this connection.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This function will cause all pending and future I/O on the specified</span> |
| <span class="doccomment">/// portions to return immediately with an appropriate value (see the</span> |
| <span class="doccomment">/// documentation of `Shutdown`).</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">shutdown</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">how</span>: <span class="ident">Shutdown</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">shutdown</span>(<span class="ident">how</span>) |
| } |
| |
| <span class="doccomment">/// Sets the value of the `TCP_NODELAY` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// If set, this option disables the Nagle algorithm. This means that</span> |
| <span class="doccomment">/// segments are always sent as soon as possible, even if there is only a</span> |
| <span class="doccomment">/// small amount of data. When not set, data is buffered until there is a</span> |
| <span class="doccomment">/// sufficient amount to send out, thereby avoiding the frequent sending of</span> |
| <span class="doccomment">/// small packets.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_nodelay</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">nodelay</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_nodelay</span>(<span class="ident">nodelay</span>) |
| } |
| |
| <span class="doccomment">/// Gets the value of the `TCP_NODELAY` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// For more information about this option, see [`set_nodelay`][link].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [link]: #method.set_nodelay</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">nodelay</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">bool</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">nodelay</span>() |
| } |
| |
| <span class="doccomment">/// Sets the value of the `SO_RCVBUF` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Changes the size of the operating system's receive buffer associated</span> |
| <span class="doccomment">/// with the socket.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_recv_buffer_size</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">size</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_recv_buffer_size</span>(<span class="ident">size</span>) |
| } |
| |
| <span class="doccomment">/// Gets the value of the `SO_RCVBUF` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// For more information about this option, see</span> |
| <span class="doccomment">/// [`set_recv_buffer_size`][link].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [link]: #tymethod.set_recv_buffer_size</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">recv_buffer_size</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">recv_buffer_size</span>() |
| } |
| |
| <span class="doccomment">/// Sets the value of the `SO_SNDBUF` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Changes the size of the operating system's send buffer associated with</span> |
| <span class="doccomment">/// the socket.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_send_buffer_size</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">size</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_send_buffer_size</span>(<span class="ident">size</span>) |
| } |
| |
| <span class="doccomment">/// Gets the value of the `SO_SNDBUF` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// For more information about this option, see [`set_send_buffer`][link].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [link]: #tymethod.set_send_buffer</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">send_buffer_size</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">send_buffer_size</span>() |
| } |
| |
| <span class="doccomment">/// Sets whether keepalive messages are enabled to be sent on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// On Unix, this option will set the `SO_KEEPALIVE` as well as the</span> |
| <span class="doccomment">/// `TCP_KEEPALIVE` or `TCP_KEEPIDLE` option (depending on your platform).</span> |
| <span class="doccomment">/// On Windows, this will set the `SIO_KEEPALIVE_VALS` option.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// If `None` is specified then keepalive messages are disabled, otherwise</span> |
| <span class="doccomment">/// the duration specified will be the time to remain idle before sending a</span> |
| <span class="doccomment">/// TCP keepalive probe.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Some platforms specify this value in seconds, so sub-second</span> |
| <span class="doccomment">/// specifications may be omitted.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_keepalive</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">keepalive</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Duration</span><span class="op">></span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_keepalive</span>(<span class="ident">keepalive</span>) |
| } |
| |
| <span class="doccomment">/// Returns whether keepalive messages are enabled on this socket, and if so</span> |
| <span class="doccomment">/// the duration of time between them.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// For more information about this option, see [`set_keepalive`][link].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [link]: #tymethod.set_keepalive</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">keepalive</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Duration</span><span class="op">>></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">keepalive</span>() |
| } |
| |
| <span class="doccomment">/// Sets the value for the `IP_TTL` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This value sets the time-to-live field that is used in every packet sent</span> |
| <span class="doccomment">/// from this socket.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_ttl</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">ttl</span>: <span class="ident">u32</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_ttl</span>(<span class="ident">ttl</span>) |
| } |
| |
| <span class="doccomment">/// Gets the value of the `IP_TTL` option for this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// For more information about this option, see [`set_ttl`][link].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [link]: #tymethod.set_ttl</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">ttl</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">ttl</span>() |
| } |
| |
| <span class="doccomment">/// Sets the value for the `IPV6_V6ONLY` option on this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// If this is set to `true` then the socket is restricted to sending and</span> |
| <span class="doccomment">/// receiving IPv6 packets only. In this case two IPv4 and IPv6 applications</span> |
| <span class="doccomment">/// can bind the same port at the same time.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// If this is set to `false` then the socket can be used to send and</span> |
| <span class="doccomment">/// receive packets from an IPv4-mapped IPv6 address.</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_only_v6</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">only_v6</span>: <span class="ident">bool</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_only_v6</span>(<span class="ident">only_v6</span>) |
| } |
| |
| <span class="doccomment">/// Gets the value of the `IPV6_V6ONLY` option for this socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// For more information about this option, see [`set_only_v6`][link].</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [link]: #tymethod.set_only_v6</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">only_v6</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">bool</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">only_v6</span>() |
| } |
| |
| <span class="doccomment">/// Sets the linger duration of this socket by setting the SO_LINGER option</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_linger</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">dur</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Duration</span><span class="op">></span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_linger</span>(<span class="ident">dur</span>) |
| } |
| |
| <span class="doccomment">/// reads the linger duration for this socket by getting the SO_LINGER option</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">linger</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Duration</span><span class="op">>></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">linger</span>() |
| } |
| |
| <span class="attribute">#[<span class="ident">deprecated</span>(<span class="ident">since</span> <span class="op">=</span> <span class="string">"0.1.8"</span>, <span class="ident">note</span> <span class="op">=</span> <span class="string">"use set_keepalive"</span>)]</span> |
| <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_keepalive_ms</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">keepalive</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">deprecated</span>)]</span> |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">set_keepalive_ms</span>(<span class="ident">keepalive</span>) |
| } |
| |
| <span class="attribute">#[<span class="ident">deprecated</span>(<span class="ident">since</span> <span class="op">=</span> <span class="string">"0.1.8"</span>, <span class="ident">note</span> <span class="op">=</span> <span class="string">"use keepalive"</span>)]</span> |
| <span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">keepalive_ms</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">u32</span><span class="op">>></span> { |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">deprecated</span>)]</span> |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">keepalive_ms</span>() |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Read</span> <span class="kw">for</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">read</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">read</span>(<span class="ident">buf</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Write</span> <span class="kw">for</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">write</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">write</span>(<span class="ident">buf</span>) |
| } |
| <span class="kw">fn</span> <span class="ident">flush</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">AsyncRead</span> <span class="kw">for</span> <span class="ident">TcpStream</span> { |
| <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">prepare_uninitialized_buffer</span>(<span class="kw-2">&</span><span class="self">self</span>, _: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">bool</span> { |
| <span class="bool-val">false</span> |
| } |
| |
| <span class="kw">fn</span> <span class="ident">read_buf</span><span class="op"><</span><span class="ident">B</span>: <span class="ident">BufMut</span><span class="op">></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">B</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">usize</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> { |
| <span class="op"><</span><span class="kw-2">&</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">read_buf</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="kw-2">&</span><span class="kw-2">*</span><span class="self">self</span>, <span class="ident">buf</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">AsyncWrite</span> <span class="kw">for</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">shutdown</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span>(), <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> { |
| <span class="op"><</span><span class="kw-2">&</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">shutdown</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="kw-2">&</span><span class="kw-2">*</span><span class="self">self</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">write_buf</span><span class="op"><</span><span class="ident">B</span>: <span class="ident">Buf</span><span class="op">></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">B</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">usize</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> { |
| <span class="op"><</span><span class="kw-2">&</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">write_buf</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="kw-2">&</span><span class="kw-2">*</span><span class="self">self</span>, <span class="ident">buf</span>) |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">deprecated</span>)]</span> |
| <span class="kw">impl</span> ::<span class="ident">io</span>::<span class="ident">Io</span> <span class="kw">for</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">poll_read</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Async</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="op"><</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">poll_read</span>(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">poll_write</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Async</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="op"><</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">poll_write</span>(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">read_vec</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">bufs</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">IoVec</span>]) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=</span> <span class="op"><</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">poll_read</span>(<span class="self">self</span>) { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span>.<span class="ident">into</span>()) |
| } |
| <span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">read_bufs</span>(<span class="ident">bufs</span>); |
| <span class="kw">if</span> <span class="ident">is_wouldblock</span>(<span class="kw-2">&</span><span class="ident">r</span>) { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">need_read</span>(); |
| } |
| <span class="kw">return</span> <span class="ident">r</span> |
| } |
| |
| <span class="kw">fn</span> <span class="ident">write_vec</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">bufs</span>: <span class="kw-2">&</span>[<span class="kw-2">&</span><span class="ident">IoVec</span>]) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=</span> <span class="op"><</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">poll_write</span>(<span class="self">self</span>) { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span>.<span class="ident">into</span>()) |
| } |
| <span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">write_bufs</span>(<span class="ident">bufs</span>); |
| <span class="kw">if</span> <span class="ident">is_wouldblock</span>(<span class="kw-2">&</span><span class="ident">r</span>) { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">need_write</span>(); |
| } |
| <span class="kw">return</span> <span class="ident">r</span> |
| } |
| } |
| |
| <span class="kw">fn</span> <span class="ident">is_wouldblock</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>(<span class="ident">r</span>: <span class="kw-2">&</span><span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">T</span><span class="op">></span>) <span class="op">-></span> <span class="ident">bool</span> { |
| <span class="kw">match</span> <span class="kw-2">*</span><span class="ident">r</span> { |
| <span class="prelude-val">Ok</span>(_) <span class="op">=></span> <span class="bool-val">false</span>, |
| <span class="prelude-val">Err</span>(<span class="kw-2">ref</span> <span class="ident">e</span>) <span class="op">=></span> <span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span>, |
| } |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">Read</span> <span class="kw">for</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">read</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> { |
| (<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">io</span>).<span class="ident">read</span>(<span class="ident">buf</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">Write</span> <span class="kw">for</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">write</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">usize</span><span class="op">></span> { |
| (<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">io</span>).<span class="ident">write</span>(<span class="ident">buf</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">flush</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> { |
| (<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">io</span>).<span class="ident">flush</span>() |
| } |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">AsyncRead</span> <span class="kw">for</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">TcpStream</span> { |
| <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">prepare_uninitialized_buffer</span>(<span class="kw-2">&</span><span class="self">self</span>, _: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>]) <span class="op">-></span> <span class="ident">bool</span> { |
| <span class="bool-val">false</span> |
| } |
| |
| <span class="kw">fn</span> <span class="ident">read_buf</span><span class="op"><</span><span class="ident">B</span>: <span class="ident">BufMut</span><span class="op">></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">B</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">usize</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=</span> <span class="op"><</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">poll_read</span>(<span class="self">self</span>) { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) |
| } |
| <span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> <span class="kw">unsafe</span> { |
| <span class="comment">// The `IoVec` type can't have a 0-length size, so we create a bunch</span> |
| <span class="comment">// of dummy versions on the stack with 1 length which we'll quickly</span> |
| <span class="comment">// overwrite.</span> |
| <span class="kw">let</span> <span class="ident">b1</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b2</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b3</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b4</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b5</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b6</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b7</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b8</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b9</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b10</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b11</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b12</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b13</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b14</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b15</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">b16</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> [<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">bufs</span>: [<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">IoVec</span>; <span class="number">16</span>] <span class="op">=</span> [ |
| <span class="ident">b1</span>.<span class="ident">into</span>(), <span class="ident">b2</span>.<span class="ident">into</span>(), <span class="ident">b3</span>.<span class="ident">into</span>(), <span class="ident">b4</span>.<span class="ident">into</span>(), |
| <span class="ident">b5</span>.<span class="ident">into</span>(), <span class="ident">b6</span>.<span class="ident">into</span>(), <span class="ident">b7</span>.<span class="ident">into</span>(), <span class="ident">b8</span>.<span class="ident">into</span>(), |
| <span class="ident">b9</span>.<span class="ident">into</span>(), <span class="ident">b10</span>.<span class="ident">into</span>(), <span class="ident">b11</span>.<span class="ident">into</span>(), <span class="ident">b12</span>.<span class="ident">into</span>(), |
| <span class="ident">b13</span>.<span class="ident">into</span>(), <span class="ident">b14</span>.<span class="ident">into</span>(), <span class="ident">b15</span>.<span class="ident">into</span>(), <span class="ident">b16</span>.<span class="ident">into</span>(), |
| ]; |
| <span class="kw">let</span> <span class="ident">n</span> <span class="op">=</span> <span class="ident">buf</span>.<span class="ident">bytes_vec_mut</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">bufs</span>); |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">read_bufs</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">bufs</span>[..<span class="ident">n</span>]) |
| }; |
| |
| <span class="kw">match</span> <span class="ident">r</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">n</span>) <span class="op">=></span> { |
| <span class="kw">unsafe</span> { <span class="ident">buf</span>.<span class="ident">advance_mut</span>(<span class="ident">n</span>); } |
| <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">n</span>)) |
| } |
| <span class="prelude-val">Err</span>(<span class="kw-2">ref</span> <span class="ident">e</span>) <span class="kw">if</span> <span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span> <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">need_read</span>(); |
| <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) |
| } |
| <span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="prelude-val">Err</span>(<span class="ident">e</span>), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">AsyncWrite</span> <span class="kw">for</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">shutdown</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span>(), <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> { |
| <span class="prelude-val">Ok</span>(().<span class="ident">into</span>()) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">write_buf</span><span class="op"><</span><span class="ident">B</span>: <span class="ident">Buf</span><span class="op">></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">buf</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">B</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">usize</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=</span> <span class="op"><</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">poll_write</span>(<span class="self">self</span>) { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) |
| } |
| <span class="kw">let</span> <span class="ident">r</span> <span class="op">=</span> { |
| <span class="comment">// The `IoVec` type can't have a zero-length size, so create a dummy</span> |
| <span class="comment">// version from a 1-length slice which we'll overwrite with the</span> |
| <span class="comment">// `bytes_vec` method.</span> |
| <span class="kw">static</span> <span class="ident">DUMMY</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>] <span class="op">=</span> <span class="kw-2">&</span>[<span class="number">0</span>]; |
| <span class="kw">let</span> <span class="ident">iovec</span> <span class="op">=</span> <span class="op"><</span><span class="kw-2">&</span><span class="ident">IoVec</span><span class="op">></span>::<span class="ident">from</span>(<span class="ident">DUMMY</span>); |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">bufs</span> <span class="op">=</span> [<span class="ident">iovec</span>; <span class="number">64</span>]; |
| <span class="kw">let</span> <span class="ident">n</span> <span class="op">=</span> <span class="ident">buf</span>.<span class="ident">bytes_vec</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">bufs</span>); |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">write_bufs</span>(<span class="kw-2">&</span><span class="ident">bufs</span>[..<span class="ident">n</span>]) |
| }; |
| <span class="kw">match</span> <span class="ident">r</span> { |
| <span class="prelude-val">Ok</span>(<span class="ident">n</span>) <span class="op">=></span> { |
| <span class="ident">buf</span>.<span class="ident">advance</span>(<span class="ident">n</span>); |
| <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">n</span>)) |
| } |
| <span class="prelude-val">Err</span>(<span class="kw-2">ref</span> <span class="ident">e</span>) <span class="kw">if</span> <span class="ident">e</span>.<span class="ident">kind</span>() <span class="op">==</span> <span class="ident">io</span>::<span class="ident">ErrorKind</span>::<span class="ident">WouldBlock</span> <span class="op">=></span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">need_write</span>(); |
| <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) |
| } |
| <span class="prelude-val">Err</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="prelude-val">Err</span>(<span class="ident">e</span>), |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">deprecated</span>)]</span> |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> ::<span class="ident">io</span>::<span class="ident">Io</span> <span class="kw">for</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">poll_read</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Async</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="op"><</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">poll_read</span>(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn</span> <span class="ident">poll_write</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Async</span><span class="op"><</span>()<span class="op">></span> { |
| <span class="op"><</span><span class="ident">TcpStream</span><span class="op">></span>::<span class="ident">poll_write</span>(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">fmt</span>(<span class="ident">f</span>) |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Future</span> <span class="kw">for</span> <span class="ident">TcpStreamNew</span> { |
| <span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="ident">TcpStream</span>; |
| <span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">io</span>::<span class="ident">Error</span>; |
| |
| <span class="kw">fn</span> <span class="ident">poll</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">TcpStream</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> { |
| <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">poll</span>() |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">Future</span> <span class="kw">for</span> <span class="ident">TcpStreamNewState</span> { |
| <span class="kw">type</span> <span class="ident">Item</span> <span class="op">=</span> <span class="ident">TcpStream</span>; |
| <span class="kw">type</span> <span class="ident">Error</span> <span class="op">=</span> <span class="ident">io</span>::<span class="ident">Error</span>; |
| |
| <span class="kw">fn</span> <span class="ident">poll</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-></span> <span class="ident">Poll</span><span class="op"><</span><span class="ident">TcpStream</span>, <span class="ident">io</span>::<span class="ident">Error</span><span class="op">></span> { |
| { |
| <span class="kw">let</span> <span class="ident">stream</span> <span class="op">=</span> <span class="kw">match</span> <span class="kw-2">*</span><span class="self">self</span> { |
| <span class="ident">TcpStreamNewState</span>::<span class="ident">Waiting</span>(<span class="kw-2">ref</span> <span class="ident">s</span>) <span class="op">=></span> <span class="ident">s</span>, |
| <span class="ident">TcpStreamNewState</span>::<span class="ident">Error</span>(_) <span class="op">=></span> { |
| <span class="kw">let</span> <span class="ident">e</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">mem</span>::<span class="ident">replace</span>(<span class="self">self</span>, <span class="ident">TcpStreamNewState</span>::<span class="ident">Empty</span>) { |
| <span class="ident">TcpStreamNewState</span>::<span class="ident">Error</span>(<span class="ident">e</span>) <span class="op">=></span> <span class="ident">e</span>, |
| _ <span class="op">=></span> <span class="macro">panic</span><span class="macro">!</span>(), |
| }; |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">e</span>) |
| } |
| <span class="ident">TcpStreamNewState</span>::<span class="ident">Empty</span> <span class="op">=></span> <span class="macro">panic</span><span class="macro">!</span>(<span class="string">"can't poll TCP stream twice"</span>), |
| }; |
| |
| <span class="comment">// Once we've connected, wait for the stream to be writable as</span> |
| <span class="comment">// that's when the actual connection has been initiated. Once we're</span> |
| <span class="comment">// writable we check for `take_socket_error` to see if the connect</span> |
| <span class="comment">// actually hit an error or not.</span> |
| <span class="comment">//</span> |
| <span class="comment">// If all that succeeded then we ship everything on up.</span> |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">Async</span>::<span class="ident">NotReady</span> <span class="op">=</span> <span class="ident">stream</span>.<span class="ident">io</span>.<span class="ident">poll_write</span>() { |
| <span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">NotReady</span>) |
| } |
| <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">e</span>) <span class="op">=</span> <span class="macro">try</span><span class="macro">!</span>(<span class="ident">stream</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">take_error</span>()) { |
| <span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">e</span>) |
| } |
| } |
| <span class="kw">match</span> <span class="ident">mem</span>::<span class="ident">replace</span>(<span class="self">self</span>, <span class="ident">TcpStreamNewState</span>::<span class="ident">Empty</span>) { |
| <span class="ident">TcpStreamNewState</span>::<span class="ident">Waiting</span>(<span class="ident">stream</span>) <span class="op">=></span> <span class="prelude-val">Ok</span>(<span class="ident">Async</span>::<span class="ident">Ready</span>(<span class="ident">stream</span>)), |
| _ <span class="op">=></span> <span class="macro">panic</span><span class="macro">!</span>(), |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">all</span>(<span class="ident">unix</span>, <span class="ident">not</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"fuchsia"</span>)))]</span> |
| <span class="kw">mod</span> <span class="ident">sys</span> { |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">os</span>::<span class="ident">unix</span>::<span class="ident">prelude</span>::<span class="kw-2">*</span>; |
| <span class="kw">use</span> <span class="kw">super</span>::{<span class="ident">TcpStream</span>, <span class="ident">TcpListener</span>}; |
| |
| <span class="kw">impl</span> <span class="ident">AsRawFd</span> <span class="kw">for</span> <span class="ident">TcpStream</span> { |
| <span class="kw">fn</span> <span class="ident">as_raw_fd</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">RawFd</span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">as_raw_fd</span>() |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">AsRawFd</span> <span class="kw">for</span> <span class="ident">TcpListener</span> { |
| <span class="kw">fn</span> <span class="ident">as_raw_fd</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">RawFd</span> { |
| <span class="self">self</span>.<span class="ident">io</span>.<span class="ident">get_ref</span>().<span class="ident">as_raw_fd</span>() |
| } |
| } |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">windows</span>)]</span> |
| <span class="kw">mod</span> <span class="ident">sys</span> { |
| <span class="comment">// TODO: let's land these upstream with mio and then we can add them here.</span> |
| <span class="comment">//</span> |
| <span class="comment">// use std::os::windows::prelude::*;</span> |
| <span class="comment">// use super::{TcpStream, TcpListener};</span> |
| <span class="comment">//</span> |
| <span class="comment">// impl AsRawHandle for TcpStream {</span> |
| <span class="comment">// fn as_raw_handle(&self) -> RawHandle {</span> |
| <span class="comment">// self.io.get_ref().as_raw_handle()</span> |
| <span class="comment">// }</span> |
| <span class="comment">// }</span> |
| <span class="comment">//</span> |
| <span class="comment">// impl AsRawHandle for TcpListener {</span> |
| <span class="comment">// fn as_raw_handle(&self) -> RawHandle {</span> |
| <span class="comment">// self.listener.io().as_raw_handle()</span> |
| <span class="comment">// }</span> |
| <span class="comment">// }</span> |
| } |
| </pre> |
| </section> |
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