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<p class='location'>Struct TcpBuilder</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.new_v4">new_v4</a><a href="#method.new_v6">new_v6</a><a href="#method.bind">bind</a><a href="#method.listen">listen</a><a href="#method.connect">connect</a><a href="#method.to_tcp_stream">to_tcp_stream</a><a href="#method.to_tcp_listener">to_tcp_listener</a><a href="#method.local_addr">local_addr</a><a href="#method.ttl">ttl</a><a href="#method.only_v6">only_v6</a><a href="#method.reuse_address">reuse_address</a><a href="#method.get_reuse_address">get_reuse_address</a><a href="#method.take_error">take_error</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-FromRawFd">FromRawFd</a><a href="#impl-AsRawFd">AsRawFd</a><a href="#impl-UnixTcpBuilderExt">UnixTcpBuilderExt</a></div></div><p class='location'><a href='index.html'>net2</a></p><script>window.sidebarCurrent = {name: 'TcpBuilder', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='index.html'>net2</a>::<wbr><a class="struct" href=''>TcpBuilder</a></span><span class='out-of-band'><span id='render-detail'>
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<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
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[<span class='inner'>−</span>]
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</a>
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</span><a class='srclink' href='../src/net2/tcp.rs.html#23-25' title='goto source code'>[src]</a></span></h1>
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<pre class='rust struct'>pub struct TcpBuilder { /* fields omitted */ }</pre><div class='docblock'><p>An "in progress" TCP socket which has not yet been connected or listened.</p>
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<p>Allows configuration of a socket before one of these operations is executed.</p>
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</div>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><code>impl <a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#27-142' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.new_v4' class="method"><span id='new_v4.v' class='invisible'><code>pub fn <a href='#method.new_v4' class='fnname'>new_v4</a>() -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#33-35' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Constructs a new TcpBuilder with the <code>AF_INET</code> domain, the <code>SOCK_STREAM</code>
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type, and with a protocol argument of 0.</p>
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<p>Note that passing other kinds of flags or arguments can be done through
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the <code>FromRaw{Fd,Socket}</code> implementation.</p>
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</div><h4 id='method.new_v6' class="method"><span id='new_v6.v' class='invisible'><code>pub fn <a href='#method.new_v6' class='fnname'>new_v6</a>() -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#42-44' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Constructs a new TcpBuilder with the <code>AF_INET6</code> domain, the <code>SOCK_STREAM</code>
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type, and with a protocol argument of 0.</p>
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<p>Note that passing other kinds of flags or arguments can be done through
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the <code>FromRaw{Fd,Socket}</code> implementation.</p>
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</div><h4 id='method.bind' class="method"><span id='bind.v' class='invisible'><code>pub fn <a href='#method.bind' class='fnname'>bind</a><T>(&self, addr: T) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><&<a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a>> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/std/net/addr/trait.ToSocketAddrs.html" title="trait std::net::addr::ToSocketAddrs">ToSocketAddrs</a>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#50-57' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Binds this socket to the specified address.</p>
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<p>This function directly corresponds to the bind(2) function on Windows
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and Unix.</p>
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</div><h4 id='method.listen' class="method"><span id='listen.v' class='invisible'><code>pub fn <a href='#method.listen' class='fnname'>listen</a>(&self, backlog: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="struct" href="https://doc.rust-lang.org/nightly/std/net/tcp/struct.TcpListener.html" title="struct std::net::tcp::TcpListener">TcpListener</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#67-73' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Mark a socket as ready to accept incoming connection requests using
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accept()</p>
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<p>This function directly corresponds to the listen(2) function on Windows
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and Unix.</p>
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<p>An error will be returned if <code>listen</code> or <code>connect</code> has already been
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called on this builder.</p>
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</div><h4 id='method.connect' class="method"><span id='connect.v' class='invisible'><code>pub fn <a href='#method.connect' class='fnname'>connect</a><T>(&self, addr: T) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="struct" href="https://doc.rust-lang.org/nightly/std/net/tcp/struct.TcpStream.html" title="struct std::net::tcp::TcpStream">TcpStream</a>> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/std/net/addr/trait.ToSocketAddrs.html" title="trait std::net::addr::ToSocketAddrs">ToSocketAddrs</a>, </span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#82-94' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Initiate a connection on this socket to the specified address.</p>
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<p>This function directly corresponds to the connect(2) function on Windows
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and Unix.</p>
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<p>An error will be returned if <code>listen</code> or <code>connect</code> has already been
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called on this builder.</p>
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</div><h4 id='method.to_tcp_stream' class="method"><span id='to_tcp_stream.v' class='invisible'><code>pub fn <a href='#method.to_tcp_stream' class='fnname'>to_tcp_stream</a>(&self) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="struct" href="https://doc.rust-lang.org/nightly/std/net/tcp/struct.TcpStream.html" title="struct std::net::tcp::TcpStream">TcpStream</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#102-106' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Converts this builder into a <code>TcpStream</code></p>
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<p>This function will consume the internal socket and return it re-wrapped
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as a <code>TcpStream</code>. An error will be returned if the internal socket has
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already been consumed from a successful call to <code>connect</code>, <code>listen</code>,
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etc.</p>
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</div><h4 id='method.to_tcp_listener' class="method"><span id='to_tcp_listener.v' class='invisible'><code>pub fn <a href='#method.to_tcp_listener' class='fnname'>to_tcp_listener</a>(&self) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="struct" href="https://doc.rust-lang.org/nightly/std/net/tcp/struct.TcpListener.html" title="struct std::net::tcp::TcpListener">TcpListener</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#114-119' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Converts this builder into a <code>TcpListener</code></p>
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<p>This function will consume the internal socket and return it re-wrapped
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as a <code>TcpListener</code>. An error will be returned if the internal socket has
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already been consumed from a successful call to <code>connect</code>, <code>listen</code>,
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etc.</p>
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</div><h4 id='method.local_addr' class="method"><span id='local_addr.v' class='invisible'><code>pub fn <a href='#method.local_addr' class='fnname'>local_addr</a>(&self) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/nightly/std/net/addr/enum.SocketAddr.html" title="enum std::net::addr::SocketAddr">SocketAddr</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#125-131' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns the address of the local half of this TCP socket.</p>
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<p>An error will be returned if <code>listen</code> or <code>connect</code> has already been
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called on this builder.</p>
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</div></div><h3 id='impl-1' class='impl'><span class='in-band'><code>impl <a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a></code><a href='#impl-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/ext.rs.html#1401-1455' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.ttl' class="method"><span id='ttl.v' class='invisible'><code>pub fn <a href='#method.ttl' class='fnname'>ttl</a>(&self, ttl: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/ext.rs.html#1407-1410' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Sets the value for the <code>IP_TTL</code> option on this socket.</p>
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<p>This is the same as <a href="trait.TcpStreamExt.html#tymethod.set_ttl"><code>TcpStreamExt::set_ttl</code></a>.</p>
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</div><h4 id='method.only_v6' class="method"><span id='only_v6.v' class='invisible'><code>pub fn <a href='#method.only_v6' class='fnname'>only_v6</a>(&self, only_v6: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/ext.rs.html#1417-1420' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Sets the value for the <code>IPV6_V6ONLY</code> option on this socket.</p>
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<p>This is the same as <a href="trait.TcpStreamExt.html#tymethod.set_only_v6"><code>TcpStreamExt::set_only_v6</code></a>.</p>
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</div><h4 id='method.reuse_address' class="method"><span id='reuse_address.v' class='invisible'><code>pub fn <a href='#method.reuse_address' class='fnname'>reuse_address</a>(&self, reuse: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/ext.rs.html#1427-1430' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Set value for the <code>SO_REUSEADDR</code> option on this socket.</p>
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<p>This indicates that futher calls to <code>bind</code> may allow reuse of local
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addresses. For IPv4 sockets this means that a socket may bind even when
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there's a socket already listening on this port.</p>
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</div><h4 id='method.get_reuse_address' class="method"><span id='get_reuse_address.v' class='invisible'><code>pub fn <a href='#method.get_reuse_address' class='fnname'>get_reuse_address</a>(&self) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/ext.rs.html#1433-1435' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Check the <code>SO_REUSEADDR</code> option on this socket.</p>
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</div><h4 id='method.take_error' class="method"><span id='take_error.v' class='invisible'><code>pub fn <a href='#method.take_error' class='fnname'>take_error</a>(&self) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="https://doc.rust-lang.org/nightly/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a>>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/ext.rs.html#1442-1444' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Get the value of the <code>SO_ERROR</code> option on this socket.</p>
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<p>This will retrieve the stored error in the underlying socket, clearing
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the field in the process. This can be useful for checking errors between
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calls.</p>
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</div></div>
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<h2 id='implementations' class='small-section-header'>
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Trait Implementations<a href='#implementations' class='anchor'></a>
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</h2>
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<h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#144-149' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/tcp.rs.html#145-148' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></div><h3 id='impl-FromRawFd' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/sys/unix/ext/io/trait.FromRawFd.html" title="trait std::sys::unix::ext::io::FromRawFd">FromRawFd</a> for <a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a></code><a href='#impl-FromRawFd' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/sys/unix/impls.rs.html#18-23' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.from_raw_fd' class="method"><span id='from_raw_fd.v' class='invisible'><code>unsafe fn <a href='https://doc.rust-lang.org/nightly/std/sys/unix/ext/io/trait.FromRawFd.html#tymethod.from_raw_fd' class='fnname'>from_raw_fd</a>(fd: <a class="type" href="../libc/type.c_int.html" title="type libc::c_int">c_int</a>) -> <a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/sys/unix/impls.rs.html#19-22' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Constructs a new instance of <code>Self</code> from the given raw file descriptor. <a href="https://doc.rust-lang.org/nightly/std/sys/unix/ext/io/trait.FromRawFd.html#tymethod.from_raw_fd">Read more</a></p>
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</div></div><h3 id='impl-AsRawFd' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/sys/unix/ext/io/trait.AsRawFd.html" title="trait std::sys::unix::ext::io::AsRawFd">AsRawFd</a> for <a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a></code><a href='#impl-AsRawFd' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/sys/unix/impls.rs.html#25-30' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.as_raw_fd' class="method"><span id='as_raw_fd.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/std/sys/unix/ext/io/trait.AsRawFd.html#tymethod.as_raw_fd' class='fnname'>as_raw_fd</a>(&self) -> <a class="type" href="../libc/type.c_int.html" title="type libc::c_int">c_int</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/sys/unix/impls.rs.html#26-29' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Extracts the raw file descriptor. <a href="https://doc.rust-lang.org/nightly/std/sys/unix/ext/io/trait.AsRawFd.html#tymethod.as_raw_fd">Read more</a></p>
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</div></div><h3 id='impl-UnixTcpBuilderExt' class='impl'><span class='in-band'><code>impl <a class="trait" href="../net2/unix/trait.UnixTcpBuilderExt.html" title="trait net2::unix::UnixTcpBuilderExt">UnixTcpBuilderExt</a> for <a class="struct" href="../net2/struct.TcpBuilder.html" title="struct net2::TcpBuilder">TcpBuilder</a></code><a href='#impl-UnixTcpBuilderExt' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/unix.rs.html#22-32' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.reuse_port' class="method"><span id='reuse_port.v' class='invisible'><code>fn <a href='../net2/unix/trait.UnixTcpBuilderExt.html#tymethod.reuse_port' class='fnname'>reuse_port</a>(&self, reuse: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/unix.rs.html#23-26' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Set value for the <code>SO_REUSEPORT</code> option on this socket. <a href="../net2/unix/trait.UnixTcpBuilderExt.html#tymethod.reuse_port">Read more</a></p>
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</div><h4 id='method.get_reuse_port' class="method"><span id='get_reuse_port.v' class='invisible'><code>fn <a href='../net2/unix/trait.UnixTcpBuilderExt.html#tymethod.get_reuse_port' class='fnname'>get_reuse_port</a>(&self) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/net2/unix.rs.html#28-31' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Check the value of the <code>SO_REUSEPORT</code> option on this socket.</p>
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