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| </pre><pre class="rust "> |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">NRBITS</span>: <span class="ident">u32</span> <span class="op">=</span> <span class="number">8</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">TYPEBITS</span>: <span class="ident">u32</span> <span class="op">=</span> <span class="number">8</span>; |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"mips"</span>, <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"powerpc"</span>))]</span> |
| <span class="kw">mod</span> <span class="ident">consts</span> { |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">NONE</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">1</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">READ</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">2</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">WRITE</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">4</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">SIZEBITS</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">13</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">DIRBITS</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">3</span>; |
| } |
| |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">not</span>(<span class="ident">any</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"powerpc"</span>, |
| <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"mips"</span>, |
| <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86"</span>, |
| <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"arm"</span>, |
| <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86_64"</span>, |
| <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>)))]</span> |
| <span class="kw">use</span> <span class="ident">this_arch_not_supported</span>; |
| |
| <span class="comment">// "Generic" ioctl protocol</span> |
| <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>(<span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86"</span>, |
| <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"arm"</span>, |
| <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"x86_64"</span>, |
| <span class="ident">target_arch</span> <span class="op">=</span> <span class="string">"aarch64"</span>))]</span> |
| <span class="kw">mod</span> <span class="ident">consts</span> { |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">NONE</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">READ</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">2</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">WRITE</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">1</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">SIZEBITS</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">14</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">DIRBITS</span>: <span class="ident">u8</span> <span class="op">=</span> <span class="number">2</span>; |
| } |
| |
| <span class="kw">pub</span> <span class="kw">use</span> <span class="self">self</span>::<span class="ident">consts</span>::<span class="kw-2">*</span>; |
| |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">NRSHIFT</span>: <span class="ident">u32</span> <span class="op">=</span> <span class="number">0</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">TYPESHIFT</span>: <span class="ident">u32</span> <span class="op">=</span> <span class="ident">NRSHIFT</span> <span class="op">+</span> <span class="ident">NRBITS</span> <span class="kw">as</span> <span class="ident">u32</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">SIZESHIFT</span>: <span class="ident">u32</span> <span class="op">=</span> <span class="ident">TYPESHIFT</span> <span class="op">+</span> <span class="ident">TYPEBITS</span> <span class="kw">as</span> <span class="ident">u32</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">DIRSHIFT</span>: <span class="ident">u32</span> <span class="op">=</span> <span class="ident">SIZESHIFT</span> <span class="op">+</span> <span class="ident">SIZEBITS</span> <span class="kw">as</span> <span class="ident">u32</span>; |
| |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">NRMASK</span>: <span class="ident">u32</span> <span class="op">=</span> (<span class="number">1</span> <span class="op"><<</span> <span class="ident">NRBITS</span>) <span class="op">-</span> <span class="number">1</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">TYPEMASK</span>: <span class="ident">u32</span> <span class="op">=</span> (<span class="number">1</span> <span class="op"><<</span> <span class="ident">TYPEBITS</span>) <span class="op">-</span> <span class="number">1</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">SIZEMASK</span>: <span class="ident">u32</span> <span class="op">=</span> (<span class="number">1</span> <span class="op"><<</span> <span class="ident">SIZEBITS</span>) <span class="op">-</span> <span class="number">1</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">DIRMASK</span>: <span class="ident">u32</span> <span class="op">=</span> (<span class="number">1</span> <span class="op"><<</span> <span class="ident">DIRBITS</span>) <span class="op">-</span> <span class="number">1</span>; |
| |
| <span class="doccomment">/// Encode an ioctl command.</span> |
| <span class="attribute">#[<span class="ident">macro_export</span>]</span> |
| <span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">ioc</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">dir</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>:<span class="ident">expr</span>) <span class="op">=></span> ( |
| ((<span class="macro-nonterminal">$</span><span class="macro-nonterminal">dir</span> <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">sys</span>::<span class="ident">ioctl</span>::<span class="ident">DIRSHIFT</span>) <span class="op">|</span> |
| ((<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span> <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">sys</span>::<span class="ident">ioctl</span>::<span class="ident">TYPESHIFT</span>) <span class="op">|</span> |
| ((<span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span> <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">sys</span>::<span class="ident">ioctl</span>::<span class="ident">NRSHIFT</span>) <span class="op">|</span> |
| ((<span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span> <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">sys</span>::<span class="ident">ioctl</span>::<span class="ident">SIZESHIFT</span>)) |
| } |
| |
| <span class="doccomment">/// Encode an ioctl command that has no associated data.</span> |
| <span class="attribute">#[<span class="ident">macro_export</span>]</span> |
| <span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">io</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span>:<span class="ident">expr</span>) <span class="op">=></span> (<span class="macro">ioc</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">sys</span>::<span class="ident">ioctl</span>::<span class="ident">NONE</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span>, <span class="number">0</span>)) |
| } |
| |
| <span class="doccomment">/// Encode an ioctl command that reads.</span> |
| <span class="attribute">#[<span class="ident">macro_export</span>]</span> |
| <span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">ior</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>:<span class="ident">expr</span>) <span class="op">=></span> (<span class="macro">ioc</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">sys</span>::<span class="ident">ioctl</span>::<span class="ident">READ</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>)) |
| } |
| |
| <span class="doccomment">/// Encode an ioctl command that writes.</span> |
| <span class="attribute">#[<span class="ident">macro_export</span>]</span> |
| <span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">iow</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>:<span class="ident">expr</span>) <span class="op">=></span> (<span class="macro">ioc</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">sys</span>::<span class="ident">ioctl</span>::<span class="ident">WRITE</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>)) |
| } |
| |
| <span class="doccomment">/// Encode an ioctl command that both reads and writes.</span> |
| <span class="attribute">#[<span class="ident">macro_export</span>]</span> |
| <span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">iorw</span> { |
| (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span>:<span class="ident">expr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>:<span class="ident">expr</span>) <span class="op">=></span> (<span class="macro">ioc</span><span class="macro">!</span>(<span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">sys</span>::<span class="ident">ioctl</span>::<span class="ident">READ</span> <span class="op">|</span> <span class="macro-nonterminal">$</span><span class="kw">crate</span>::<span class="macro-nonterminal">sys</span>::<span class="ident">ioctl</span>::<span class="ident">WRITE</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">nr</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">sz</span>)) |
| } |
| |
| <span class="doccomment">/// Extracts the "direction" (read/write/none) from an encoded ioctl command.</span> |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">ioc_dir</span>(<span class="ident">nr</span>: <span class="ident">u32</span>) <span class="op">-></span> <span class="ident">u8</span> { |
| ((<span class="ident">nr</span> <span class="op">>></span> <span class="ident">DIRSHIFT</span>) <span class="op">&</span> <span class="ident">DIRMASK</span>) <span class="kw">as</span> <span class="ident">u8</span> |
| } |
| |
| <span class="doccomment">/// Extracts the type from an encoded ioctl command.</span> |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">ioc_type</span>(<span class="ident">nr</span>: <span class="ident">u32</span>) <span class="op">-></span> <span class="ident">u32</span> { |
| (<span class="ident">nr</span> <span class="op">>></span> <span class="ident">TYPESHIFT</span>) <span class="op">&</span> <span class="ident">TYPEMASK</span> |
| } |
| |
| <span class="doccomment">/// Extracts the ioctl number from an encoded ioctl command.</span> |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">ioc_nr</span>(<span class="ident">nr</span>: <span class="ident">u32</span>) <span class="op">-></span> <span class="ident">u32</span> { |
| (<span class="ident">nr</span> <span class="op">>></span> <span class="ident">NRSHIFT</span>) <span class="op">&</span> <span class="ident">NRMASK</span> |
| } |
| |
| <span class="doccomment">/// Extracts the size from an encoded ioctl command.</span> |
| <span class="attribute">#[<span class="ident">inline</span>(<span class="ident">always</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">ioc_size</span>(<span class="ident">nr</span>: <span class="ident">u32</span>) <span class="op">-></span> <span class="ident">u32</span> { |
| ((<span class="ident">nr</span> <span class="op">>></span> <span class="ident">SIZESHIFT</span>) <span class="kw">as</span> <span class="ident">u32</span>) <span class="op">&</span> <span class="ident">SIZEMASK</span> |
| } |
| |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">IN</span>: <span class="ident">u32</span> <span class="op">=</span> (<span class="ident">WRITE</span> <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="ident">DIRSHIFT</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">OUT</span>: <span class="ident">u32</span> <span class="op">=</span> (<span class="ident">READ</span> <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="ident">DIRSHIFT</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">INOUT</span>: <span class="ident">u32</span> <span class="op">=</span> ((<span class="ident">READ</span><span class="op">|</span><span class="ident">WRITE</span>) <span class="kw">as</span> <span class="ident">u32</span>) <span class="op"><<</span> <span class="ident">DIRSHIFT</span>; |
| <span class="kw">pub</span> <span class="kw">const</span> <span class="ident">SIZE_MASK</span>: <span class="ident">u32</span> <span class="op">=</span> <span class="ident">SIZEMASK</span> <span class="op"><<</span> <span class="ident">SIZESHIFT</span>; |
| </pre> |
| </section> |
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| <dt>⇤</dt> |
| <dd>Move up in search results</dd> |
| <dt>⇥</dt> |
| <dd>Move down in search results</dd> |
| <dt>⏎</dt> |
| <dd>Go to active search result</dd> |
| <dt>+</dt> |
| <dd>Collapse/expand all sections</dd> |
| </dl> |
| </div> |
| |
| <div class="infos"> |
| <h2>Search Tricks</h2> |
| |
| <p> |
| Prefix searches with a type followed by a colon (e.g. |
| <code>fn:</code>) to restrict the search to a given type. |
| </p> |
| |
| <p> |
| Accepted types are: <code>fn</code>, <code>mod</code>, |
| <code>struct</code>, <code>enum</code>, |
| <code>trait</code>, <code>type</code>, <code>macro</code>, |
| and <code>const</code>. |
| </p> |
| |
| <p> |
| Search functions by type signature (e.g. |
| <code>vec -> usize</code> or <code>* -> vec</code>) |
| </p> |
| </div> |
| </div> |
| </aside> |
| |
| |
| |
| <script> |
| window.rootPath = "../../../../../"; |
| window.currentCrate = "nix"; |
| </script> |
| <script src="../../../../../main.js"></script> |
| <script defer src="../../../../../search-index.js"></script> |
| </body> |
| </html> |