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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src&#x2F;parameter.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>parameter.rs - source</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings" ></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">&#9776;</div><a href='../../optee_utee/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../wheel.svg"></a></div></form></nav><section id="main" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1"> 1</span>
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</pre><pre class="rust"><code><span class="comment">// Licensed to the Apache Software Foundation (ASF) under one</span>
<span class="comment">// or more contributor license agreements. See the NOTICE file</span>
<span class="comment">// distributed with this work for additional information</span>
<span class="comment">// regarding copyright ownership. The ASF licenses this file</span>
<span class="comment">// to you under the Apache License, Version 2.0 (the</span>
<span class="comment">// &quot;License&quot;); you may not use this file except in compliance</span>
<span class="comment">// with the License. You may obtain a copy of the License at</span>
<span class="comment">//</span>
<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span>
<span class="comment">//</span>
<span class="comment">// Unless required by applicable law or agreed to in writing,</span>
<span class="comment">// software distributed under the License is distributed on an</span>
<span class="comment">// &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span>
<span class="comment">// KIND, either express or implied. See the License for the</span>
<span class="comment">// specific language governing permissions and limitations</span>
<span class="comment">// under the License.</span>
<span class="kw">use</span> <span class="kw">crate</span>::{<span class="ident">Error</span>, <span class="ident">ErrorKind</span>, <span class="prelude-ty">Result</span>};
<span class="kw">use</span> <span class="ident">optee_utee_sys</span> <span class="kw">as</span> <span class="ident">raw</span>;
<span class="kw">use</span> <span class="ident">std::marker</span>;
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Parameters</span>(<span class="kw">pub</span> <span class="ident">Parameter</span>, <span class="kw">pub</span> <span class="ident">Parameter</span>, <span class="kw">pub</span> <span class="ident">Parameter</span>, <span class="kw">pub</span> <span class="ident">Parameter</span>);
<span class="kw">impl</span> <span class="ident">Parameters</span> {
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">from_raw</span>(<span class="ident">tee_params</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="ident">raw::TEE_Param</span>; <span class="number">4</span>], <span class="ident">param_types</span>: <span class="ident">u32</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="self">Self</span> {
<span class="kw">let</span> (<span class="ident">f0</span>, <span class="ident">f1</span>, <span class="ident">f2</span>, <span class="ident">f3</span>) <span class="op">=</span> <span class="ident">ParamTypes::from</span>(<span class="ident">param_types</span>).<span class="ident">into_flags</span>();
<span class="kw">let</span> <span class="ident">p0</span> <span class="op">=</span> <span class="ident">Parameter::from_raw</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">tee_params</span>[<span class="number">0</span>], <span class="ident">f0</span>);
<span class="kw">let</span> <span class="ident">p1</span> <span class="op">=</span> <span class="ident">Parameter::from_raw</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">tee_params</span>[<span class="number">1</span>], <span class="ident">f1</span>);
<span class="kw">let</span> <span class="ident">p2</span> <span class="op">=</span> <span class="ident">Parameter::from_raw</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">tee_params</span>[<span class="number">2</span>], <span class="ident">f2</span>);
<span class="kw">let</span> <span class="ident">p3</span> <span class="op">=</span> <span class="ident">Parameter::from_raw</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">tee_params</span>[<span class="number">3</span>], <span class="ident">f3</span>);
<span class="ident">Parameters</span>(<span class="ident">p0</span>, <span class="ident">p1</span>, <span class="ident">p2</span>, <span class="ident">p3</span>)
}
}
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ParamValue</span><span class="op">&lt;</span><span class="lifetime">&#39;parameter</span><span class="op">&gt;</span> {
<span class="ident">raw</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">raw::Value</span>,
<span class="ident">param_type</span>: <span class="ident">ParamType</span>,
<span class="ident">_marker</span>: <span class="ident">marker::PhantomData</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="lifetime">&#39;parameter</span> <span class="kw-2">mut</span> <span class="ident">u32</span><span class="op">&gt;</span>,
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="lifetime">&#39;parameter</span><span class="op">&gt;</span> <span class="ident">ParamValue</span><span class="op">&lt;</span><span class="lifetime">&#39;parameter</span><span class="op">&gt;</span> {
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">a</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">u32</span> {
<span class="kw">unsafe</span> { (<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">raw</span>).<span class="ident">a</span> }
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">b</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">u32</span> {
<span class="kw">unsafe</span> { (<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">raw</span>).<span class="ident">b</span> }
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_a</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">a</span>: <span class="ident">u32</span>) {
<span class="kw">unsafe</span> {
(<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">raw</span>).<span class="ident">a</span> <span class="op">=</span> <span class="ident">a</span>;
}
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_b</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">b</span>: <span class="ident">u32</span>) {
<span class="kw">unsafe</span> {
(<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">raw</span>).<span class="ident">b</span> <span class="op">=</span> <span class="ident">b</span>;
}
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">param_type</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">ParamType</span> {
<span class="self">self</span>.<span class="ident">param_type</span>
}
}
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ParamMemref</span><span class="op">&lt;</span><span class="lifetime">&#39;parameter</span><span class="op">&gt;</span> {
<span class="ident">raw</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">raw::Memref</span>,
<span class="ident">param_type</span>: <span class="ident">ParamType</span>,
<span class="ident">_marker</span>: <span class="ident">marker::PhantomData</span><span class="op">&lt;</span><span class="kw-2">&amp;</span><span class="lifetime">&#39;parameter</span> <span class="kw-2">mut</span> [<span class="ident">u8</span>]<span class="op">&gt;</span>,
}
<span class="kw">impl</span><span class="op">&lt;</span><span class="lifetime">&#39;parameter</span><span class="op">&gt;</span> <span class="ident">ParamMemref</span><span class="op">&lt;</span><span class="lifetime">&#39;parameter</span><span class="op">&gt;</span> {
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">buffer</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="kw-2">&amp;</span><span class="kw-2">mut</span> [<span class="ident">u8</span>] {
<span class="kw">unsafe</span> {
<span class="ident">std::slice::from_raw_parts_mut</span>((<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">raw</span>).<span class="ident">buffer</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">u8</span>, (<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">raw</span>).<span class="ident">size</span> <span class="kw">as</span> <span class="ident">usize</span>)
}
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">param_type</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="ident">ParamType</span> {
<span class="self">self</span>.<span class="ident">param_type</span>
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">raw</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">raw::Memref</span> {
<span class="self">self</span>.<span class="ident">raw</span>
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set_updated_size</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">size</span>: <span class="ident">usize</span>) {
<span class="kw">unsafe</span> { (<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">raw</span>).<span class="ident">size</span> <span class="op">=</span> <span class="ident">size</span>};
}
}
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">Parameter</span> {
<span class="kw">pub</span> <span class="ident">raw</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">raw::TEE_Param</span>,
<span class="kw">pub</span> <span class="ident">param_type</span>: <span class="ident">ParamType</span>,
}
<span class="kw">impl</span> <span class="ident">Parameter</span> {
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">from_raw</span>(<span class="ident">ptr</span>: <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">raw::TEE_Param</span>, <span class="ident">param_type</span>: <span class="ident">ParamType</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="self">Self</span> {
<span class="self">Self</span> {
<span class="ident">raw</span>: <span class="ident">ptr</span>,
<span class="ident">param_type</span>: <span class="ident">param_type</span>,
}
}
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">as_value</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">ParamValue</span><span class="op">&gt;</span> {
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">param_type</span> {
<span class="ident">ParamType::ValueInput</span> <span class="op">|</span> <span class="ident">ParamType::ValueInout</span> <span class="op">|</span> <span class="ident">ParamType::ValueOutput</span> <span class="op">=</span><span class="op">&gt;</span> {
<span class="prelude-val">Ok</span>(<span class="ident">ParamValue</span> {
<span class="ident">raw</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> (<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">raw</span>).<span class="ident">value</span>,
<span class="ident">param_type</span>: <span class="self">self</span>.<span class="ident">param_type</span>,
<span class="ident">_marker</span>: <span class="ident">marker::PhantomData</span>,
})
}
<span class="kw">_</span> <span class="op">=</span><span class="op">&gt;</span> <span class="prelude-val">Err</span>(<span class="ident">Error::new</span>(<span class="ident">ErrorKind::BadParameters</span>)),
}
}
<span class="kw">pub</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">as_memref</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">ParamMemref</span><span class="op">&gt;</span> {
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">param_type</span> {
<span class="ident">ParamType::MemrefInout</span> <span class="op">|</span> <span class="ident">ParamType::MemrefInput</span> <span class="op">|</span> <span class="ident">ParamType::MemrefOutput</span> <span class="op">=</span><span class="op">&gt;</span> {
<span class="prelude-val">Ok</span>(<span class="ident">ParamMemref</span> {
<span class="ident">raw</span>: <span class="kw-2">&amp;</span><span class="kw-2">mut</span> (<span class="kw-2">*</span><span class="self">self</span>.<span class="ident">raw</span>).<span class="ident">memref</span>,
<span class="ident">param_type</span>: <span class="self">self</span>.<span class="ident">param_type</span>,
<span class="ident">_marker</span>: <span class="ident">marker::PhantomData</span>,
})
}
<span class="kw">_</span> <span class="op">=</span><span class="op">&gt;</span> <span class="prelude-val">Err</span>(<span class="ident">Error::new</span>(<span class="ident">ErrorKind::BadParameters</span>)),
}
}
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">raw</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">raw::TEE_Param</span> {
<span class="self">self</span>.<span class="ident">raw</span>
}
}
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">ParamTypes</span>(<span class="ident">u32</span>);
<span class="kw">impl</span> <span class="ident">ParamTypes</span> {
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">into_flags</span>(<span class="kw-2">&amp;</span><span class="self">self</span>) <span class="op">-</span><span class="op">&gt;</span> (<span class="ident">ParamType</span>, <span class="ident">ParamType</span>, <span class="ident">ParamType</span>, <span class="ident">ParamType</span>) {
(
(<span class="number">0x000fu32</span> <span class="op">&amp;</span> <span class="self">self</span>.<span class="number">0</span>).<span class="ident">into</span>(),
((<span class="number">0x00f0u32</span> <span class="op">&amp;</span> <span class="self">self</span>.<span class="number">0</span>) <span class="op">&gt;</span><span class="op">&gt;</span> <span class="number">4</span>).<span class="ident">into</span>(),
((<span class="number">0x0f00u32</span> <span class="op">&amp;</span> <span class="self">self</span>.<span class="number">0</span>) <span class="op">&gt;</span><span class="op">&gt;</span> <span class="number">8</span>).<span class="ident">into</span>(),
((<span class="number">0xf000u32</span> <span class="op">&amp;</span> <span class="self">self</span>.<span class="number">0</span>) <span class="op">&gt;</span><span class="op">&gt;</span> <span class="number">12</span>).<span class="ident">into</span>(),
)
}
}
<span class="kw">impl</span> <span class="ident">From</span><span class="op">&lt;</span><span class="ident">u32</span><span class="op">&gt;</span> <span class="kw">for</span> <span class="ident">ParamTypes</span> {
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">value</span>: <span class="ident">u32</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="self">Self</span> {
<span class="ident">ParamTypes</span>(<span class="ident">value</span>)
}
}
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Copy</span>, <span class="ident">Clone</span>)]</span>
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">ParamType</span> {
<span class="prelude-val">None</span> <span class="op">=</span> <span class="number">0</span>,
<span class="ident">ValueInput</span> <span class="op">=</span> <span class="number">1</span>,
<span class="ident">ValueOutput</span> <span class="op">=</span> <span class="number">2</span>,
<span class="ident">ValueInout</span> <span class="op">=</span> <span class="number">3</span>,
<span class="ident">MemrefInput</span> <span class="op">=</span> <span class="number">5</span>,
<span class="ident">MemrefOutput</span> <span class="op">=</span> <span class="number">6</span>,
<span class="ident">MemrefInout</span> <span class="op">=</span> <span class="number">7</span>,
}
<span class="kw">impl</span> <span class="ident">From</span><span class="op">&lt;</span><span class="ident">u32</span><span class="op">&gt;</span> <span class="kw">for</span> <span class="ident">ParamType</span> {
<span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">value</span>: <span class="ident">u32</span>) <span class="op">-</span><span class="op">&gt;</span> <span class="self">Self</span> {
<span class="kw">match</span> <span class="ident">value</span> {
<span class="number">0</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">ParamType::None</span>,
<span class="number">1</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">ParamType::ValueInput</span>,
<span class="number">2</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">ParamType::ValueOutput</span>,
<span class="number">3</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">ParamType::ValueInout</span>,
<span class="number">5</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">ParamType::MemrefInput</span>,
<span class="number">6</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">ParamType::MemrefOutput</span>,
<span class="number">7</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">ParamType::MemrefInout</span>,
<span class="kw">_</span> <span class="op">=</span><span class="op">&gt;</span> <span class="ident">ParamType::None</span>,
}
}
}
</code></pre></div>
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