mentat/tokio_proto/streaming/multiplex/trait.ServerProto.html

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<p class='location'>Trait ServerProto</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#associated-types">Associated Types</a><div class="sidebar-links"><a href="#associatedtype.Request">Request</a><a href="#associatedtype.RequestBody">RequestBody</a><a href="#associatedtype.Response">Response</a><a href="#associatedtype.ResponseBody">ResponseBody</a><a href="#associatedtype.Error">Error</a><a href="#associatedtype.Transport">Transport</a><a href="#associatedtype.BindTransport">BindTransport</a></div><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.bind_transport">bind_transport</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../../index.html'>tokio_proto</a>::<wbr><a href='../index.html'>streaming</a>::<wbr><a href='index.html'>multiplex</a></p><script>window.sidebarCurrent = {name: 'ServerProto', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Trait <a href='../../index.html'>tokio_proto</a>::<wbr><a href='../index.html'>streaming</a>::<wbr><a href='index.html'>multiplex</a>::<wbr><a class="trait" href=''>ServerProto</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a class='srclink' href='../../../src/tokio_proto/streaming/multiplex/server.rs.html#38-68' title='goto source code'>[src]</a></span></h1>
<pre class='rust trait'>pub trait ServerProto&lt;T:&nbsp;'static&gt;: 'static {
type <a href='#associatedtype.Request' class="type">Request</a>: 'static;
type <a href='#associatedtype.RequestBody' class="type">RequestBody</a>: 'static;
type <a href='#associatedtype.Response' class="type">Response</a>: 'static;
type <a href='#associatedtype.ResponseBody' class="type">ResponseBody</a>: 'static;
type <a href='#associatedtype.Error' class="type">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a>&gt; + 'static;
type <a href='#associatedtype.Transport' class="type">Transport</a>: <a class="trait" href="../../../tokio_proto/streaming/multiplex/trait.Transport.html" title="trait tokio_proto::streaming::multiplex::Transport">Transport</a>&lt;Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.RequestBody" title="type tokio_proto::streaming::multiplex::ServerProto::RequestBody">RequestBody</a>, Item = <a class="enum" href="../../../tokio_proto/streaming/multiplex/enum.Frame.html" title="enum tokio_proto::streaming::multiplex::Frame">Frame</a>&lt;Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Request" title="type tokio_proto::streaming::multiplex::ServerProto::Request">Request</a>, Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.RequestBody" title="type tokio_proto::streaming::multiplex::ServerProto::RequestBody">RequestBody</a>, Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Error" title="type tokio_proto::streaming::multiplex::ServerProto::Error">Error</a>&gt;, SinkItem = <a class="enum" href="../../../tokio_proto/streaming/multiplex/enum.Frame.html" title="enum tokio_proto::streaming::multiplex::Frame">Frame</a>&lt;Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Response" title="type tokio_proto::streaming::multiplex::ServerProto::Response">Response</a>, Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.ResponseBody" title="type tokio_proto::streaming::multiplex::ServerProto::ResponseBody">ResponseBody</a>, Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Error" title="type tokio_proto::streaming::multiplex::ServerProto::Error">Error</a>&gt;&gt;;
type <a href='#associatedtype.BindTransport' class="type">BindTransport</a>: <a class="trait" href="../../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a>&lt;Item = Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Transport" title="type tokio_proto::streaming::multiplex::ServerProto::Transport">Transport</a>, Error = <a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a>&gt;;
fn <a href='#tymethod.bind_transport' class='fnname'>bind_transport</a>(&amp;self, io: T) -&gt; Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.BindTransport" title="type tokio_proto::streaming::multiplex::ServerProto::BindTransport">BindTransport</a>;
}</pre><div class='docblock'><p>A streaming, multiplexed server protocol.</p>
<p>The <code>T</code> parameter is used for the I/O object used to communicate, which is
supplied in <code>bind_transport</code>.</p>
<p>For simple protocols, the <code>Self</code> type is often a unit struct. In more
advanced cases, <code>Self</code> may contain configuration information that is used
for setting up the transport in <code>bind_transport</code>.</p>
<h2 id="considerations" class="section-header"><a href="#considerations">Considerations</a></h2>
<p>There are some difficulties with implementing back pressure in the case
that the wire protocol does not support a means by which backpressure can
be signaled to the peer.</p>
<p>The problem is the potential for deadlock:</p>
<ul>
<li>
<p>The server is busy processing requests on this connection, and stops
reading frames from its transport.</p>
</li>
<li>
<p>Meanwhile, the processing logic is blocked waiting for another frame that
is currently pending on the socket.</p>
</li>
</ul>
<p>To deal with this, once the connection's frame buffer is filled, a timeout
is set. If no further frames are able to be read before the timeout expires,
the connection is killed.</p>
</div>
<h2 id='associated-types' class='small-section-header'>
Associated Types<a href='#associated-types' class='anchor'></a>
</h2>
<div class='methods'>
<h3 id='associatedtype.Request' class='method'><span id='Request.t' class='invisible'><code>type <a href='#associatedtype.Request' class="type">Request</a>: 'static</code></span></h3><div class='docblock'><p>Request headers.</p>
</div><h3 id='associatedtype.RequestBody' class='method'><span id='RequestBody.t' class='invisible'><code>type <a href='#associatedtype.RequestBody' class="type">RequestBody</a>: 'static</code></span></h3><div class='docblock'><p>Request body chunks.</p>
</div><h3 id='associatedtype.Response' class='method'><span id='Response.t' class='invisible'><code>type <a href='#associatedtype.Response' class="type">Response</a>: 'static</code></span></h3><div class='docblock'><p>Response headers.</p>
</div><h3 id='associatedtype.ResponseBody' class='method'><span id='ResponseBody.t' class='invisible'><code>type <a href='#associatedtype.ResponseBody' class="type">ResponseBody</a>: 'static</code></span></h3><div class='docblock'><p>Response body chunks.</p>
</div><h3 id='associatedtype.Error' class='method'><span id='Error.t' class='invisible'><code>type <a href='#associatedtype.Error' class="type">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a>&gt; + 'static</code></span></h3><div class='docblock'><p>Errors, which are used both for error frames and for the service itself.</p>
</div><h3 id='associatedtype.Transport' class='method'><span id='Transport.t' class='invisible'><code>type <a href='#associatedtype.Transport' class="type">Transport</a>: <a class="trait" href="../../../tokio_proto/streaming/multiplex/trait.Transport.html" title="trait tokio_proto::streaming::multiplex::Transport">Transport</a>&lt;Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.RequestBody" title="type tokio_proto::streaming::multiplex::ServerProto::RequestBody">RequestBody</a>, Item = <a class="enum" href="../../../tokio_proto/streaming/multiplex/enum.Frame.html" title="enum tokio_proto::streaming::multiplex::Frame">Frame</a>&lt;Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Request" title="type tokio_proto::streaming::multiplex::ServerProto::Request">Request</a>, Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.RequestBody" title="type tokio_proto::streaming::multiplex::ServerProto::RequestBody">RequestBody</a>, Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Error" title="type tokio_proto::streaming::multiplex::ServerProto::Error">Error</a>&gt;, SinkItem = <a class="enum" href="../../../tokio_proto/streaming/multiplex/enum.Frame.html" title="enum tokio_proto::streaming::multiplex::Frame">Frame</a>&lt;Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Response" title="type tokio_proto::streaming::multiplex::ServerProto::Response">Response</a>, Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.ResponseBody" title="type tokio_proto::streaming::multiplex::ServerProto::ResponseBody">ResponseBody</a>, Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Error" title="type tokio_proto::streaming::multiplex::ServerProto::Error">Error</a>&gt;&gt;</code></span></h3><div class='docblock'><p>The frame transport, which usually take <code>T</code> as a parameter.</p>
</div><h3 id='associatedtype.BindTransport' class='method'><span id='BindTransport.t' class='invisible'><code>type <a href='#associatedtype.BindTransport' class="type">BindTransport</a>: <a class="trait" href="../../../futures/future/trait.IntoFuture.html" title="trait futures::future::IntoFuture">IntoFuture</a>&lt;Item = Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.Transport" title="type tokio_proto::streaming::multiplex::ServerProto::Transport">Transport</a>, Error = <a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a>&gt;</code></span></h3><div class='docblock'><p>A future for initializing a transport from an I/O object.</p>
<p>In simple cases, <code>Result&lt;Self::Transport, Self::Error&gt;</code> often suffices.</p>
</div></div>
<h2 id='required-methods' class='small-section-header'>
Required Methods<a href='#required-methods' class='anchor'></a>
</h2>
<div class='methods'>
<h3 id='tymethod.bind_transport' class='method'><span id='bind_transport.v' class='invisible'><code>fn <a href='#tymethod.bind_transport' class='fnname'>bind_transport</a>(&amp;self, io: T) -&gt; Self::<a class="type" href="../../../tokio_proto/streaming/multiplex/trait.ServerProto.html#associatedtype.BindTransport" title="type tokio_proto::streaming::multiplex::ServerProto::BindTransport">BindTransport</a></code></span></h3><div class='docblock'><p>Build a transport from the given I/O object, using <code>self</code> for any
configuration.</p>
</div></div>
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Implementors<a href='#implementors' class='anchor'></a>
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