<!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 to the Rust file `src/lib.rs`.">
<meta name="keywords" content="rust, rustlang, rust-lang">
<title>lib.rs.html -- source</title>
<link rel="stylesheet" type="text/css" href="../../../rustdoc.css">
<link rel="stylesheet" type="text/css" href="../../../main.css">
</head>
<body class="rustdoc">
<nav class="sidebar">
</nav>
<nav class="sub">
<form class="search-form js-only">
<div class="search-container">
<input class="search-input" name="search"
autocomplete="off"
placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
type="search">
</div>
</form>
</nav>
<section id='main' class="content source"><pre class="line-numbers"><span id="1"> 1</span>
<span id="2"> 2</span>
<span id="3"> 3</span>
<span id="4"> 4</span>
<span id="5"> 5</span>
<span id="6"> 6</span>
<span id="7"> 7</span>
<span id="8"> 8</span>
<span id="9"> 9</span>
<span id="10"> 10</span>
<span id="11"> 11</span>
<span id="12"> 12</span>
<span id="13"> 13</span>
<span id="14"> 14</span>
<span id="15"> 15</span>
<span id="16"> 16</span>
<span id="17"> 17</span>
<span id="18"> 18</span>
<span id="19"> 19</span>
<span id="20"> 20</span>
<span id="21"> 21</span>
<span id="22"> 22</span>
<span id="23"> 23</span>
<span id="24"> 24</span>
<span id="25"> 25</span>
<span id="26"> 26</span>
<span id="27"> 27</span>
<span id="28"> 28</span>
<span id="29"> 29</span>
<span id="30"> 30</span>
<span id="31"> 31</span>
<span id="32"> 32</span>
<span id="33"> 33</span>
<span id="34"> 34</span>
<span id="35"> 35</span>
<span id="36"> 36</span>
<span id="37"> 37</span>
<span id="38"> 38</span>
<span id="39"> 39</span>
<span id="40"> 40</span>
<span id="41"> 41</span>
<span id="42"> 42</span>
<span id="43"> 43</span>
<span id="44"> 44</span>
<span id="45"> 45</span>
<span id="46"> 46</span>
<span id="47"> 47</span>
<span id="48"> 48</span>
<span id="49"> 49</span>
<span id="50"> 50</span>
<span id="51"> 51</span>
<span id="52"> 52</span>
<span id="53"> 53</span>
<span id="54"> 54</span>
<span id="55"> 55</span>
<span id="56"> 56</span>
<span id="57"> 57</span>
<span id="58"> 58</span>
<span id="59"> 59</span>
<span id="60"> 60</span>
<span id="61"> 61</span>
<span id="62"> 62</span>
<span id="63"> 63</span>
<span id="64"> 64</span>
<span id="65"> 65</span>
<span id="66"> 66</span>
<span id="67"> 67</span>
<span id="68"> 68</span>
<span id="69"> 69</span>
<span id="70"> 70</span>
<span id="71"> 71</span>
<span id="72"> 72</span>
<span id="73"> 73</span>
<span id="74"> 74</span>
<span id="75"> 75</span>
<span id="76"> 76</span>
<span id="77"> 77</span>
<span id="78"> 78</span>
<span id="79"> 79</span>
<span id="80"> 80</span>
<span id="81"> 81</span>
<span id="82"> 82</span>
<span id="83"> 83</span>
<span id="84"> 84</span>
<span id="85"> 85</span>
<span id="86"> 86</span>
<span id="87"> 87</span>
<span id="88"> 88</span>
<span id="89"> 89</span>
<span id="90"> 90</span>
<span id="91"> 91</span>
<span id="92"> 92</span>
<span id="93"> 93</span>
<span id="94"> 94</span>
<span id="95"> 95</span>
<span id="96"> 96</span>
<span id="97"> 97</span>
<span id="98"> 98</span>
<span id="99"> 99</span>
<span id="100">100</span>
<span id="101">101</span>
<span id="102">102</span>
<span id="103">103</span>
<span id="104">104</span>
<span id="105">105</span>
<span id="106">106</span>
<span id="107">107</span>
<span id="108">108</span>
<span id="109">109</span>
<span id="110">110</span>
<span id="111">111</span>
<span id="112">112</span>
<span id="113">113</span>
<span id="114">114</span>
<span id="115">115</span>
<span id="116">116</span>
<span id="117">117</span>
<span id="118">118</span>
</pre><pre class='rust '>
<span class='comment'>// -*- coding: utf-8 -*-</span>
<span class='comment'>// vi: set sts=4 ts=4 sw=4 et ft=rust:</span>
<span class='doccomment'>//! pentry is inspect Process Entry library inspired by mitchellh/go-ps.</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! # Examples</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! ```</span>
<span class='doccomment'>//! extern crate libc;</span>
<span class='doccomment'>//! extern crate pentry;</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! let pid: i32;</span>
<span class='doccomment'>//! unsafe {</span>
<span class='doccomment'>//! pid = libc::getpid() as i32;</span>
<span class='doccomment'>//! }</span>
<span class='doccomment'>//!</span>
<span class='doccomment'>//! if let Ok(ps) = pentry::find(pid) {</span>
<span class='doccomment'>//! println!("#{} {}", ps.pid(), ps.path().unwrap());</span>
<span class='doccomment'>//! }</span>
<span class='doccomment'>//! ```</span>
<span class='kw'>extern</span> <span class='kw'>crate</span> <span class='ident'>libc</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>error</span>;
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>fmt</span>;
<span class='doccomment'>/// Basic Process Object.</span>
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Debug</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Process</span> {
<span class='ident'>pid</span>: <span class='ident'>i32</span>,
<span class='ident'>ppid</span>: <span class='ident'>i32</span>,
<span class='ident'>name</span>: <span class='ident'>String</span>,
<span class='ident'>path</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span>,
}
<span class='kw'>impl</span> <span class='ident'>Process</span> {
<span class='doccomment'>/// Get Process ID.</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>pid</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>i32</span> {
<span class='kw'>return</span> <span class='self'>self</span>.<span class='ident'>pid</span>;
}
<span class='doccomment'>/// Get Parent Process ID.</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>ppid</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>i32</span> {
<span class='kw'>return</span> <span class='self'>self</span>.<span class='ident'>ppid</span>;
}
<span class='doccomment'>/// Get Process Name.</span>
<span class='doccomment'>/// This value maybe program name.</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>name</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='ident'>str</span> {
<span class='kw'>return</span> <span class='self'>self</span>.<span class='ident'>name</span>.<span class='ident'>as_str</span>();
}
<span class='doccomment'>/// Get Full file path of program if provided.</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>path</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='kw-2'>&</span><span class='ident'>str</span><span class='op'>></span> {
<span class='kw'>if</span> <span class='kw'>let</span> <span class='prelude-val'>Some</span>(<span class='ident'>path</span>) <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>path</span>.<span class='ident'>as_ref</span>() {
<span class='kw'>return</span> <span class='prelude-val'>Some</span>(<span class='ident'>path</span>.<span class='ident'>as_str</span>());
} <span class='kw'>else</span> {
<span class='kw'>return</span> <span class='prelude-val'>None</span>;
}
}
<span class='doccomment'>/// Get Parent Process Object.</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>parent</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='ident'>Process</span>, <span class='ident'>Problem</span><span class='op'>></span> {
<span class='kw'>return</span> ::<span class='ident'>find</span>(<span class='self'>self</span>.<span class='ident'>ppid</span>);
}
}
<span class='doccomment'>/// Problem occurred in find processes routine.</span>
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Debug</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Problem</span> {
<span class='ident'>message</span>: <span class='ident'>String</span>,
}
<span class='kw'>impl</span> <span class='ident'>Problem</span> {
<span class='doccomment'>/// Create new Problem with message.</span>
<span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>msg</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='ident'>Problem</span> {
<span class='kw'>return</span> <span class='ident'>Problem</span> { <span class='ident'>message</span>: <span class='ident'>msg</span>.<span class='ident'>to_string</span>() };
}
}
<span class='kw'>impl</span> <span class='ident'>fmt</span>::<span class='ident'>Display</span> <span class='kw'>for</span> <span class='ident'>Problem</span> {
<span class='kw'>fn</span> <span class='ident'>fmt</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>formatter</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='kw'>return</span> <span class='macro'>write</span><span class='macro'>!</span>(<span class='ident'>formatter</span>, <span class='string'>"{}"</span>, <span class='self'>self</span>.<span class='ident'>message</span>);
}
}
<span class='kw'>impl</span> <span class='ident'>error</span>::<span class='ident'>Error</span> <span class='kw'>for</span> <span class='ident'>Problem</span> {
<span class='kw'>fn</span> <span class='ident'>description</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='ident'>str</span> {
<span class='kw'>return</span> <span class='self'>self</span>.<span class='ident'>message</span>.<span class='ident'>as_str</span>();
}
}
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>windows</span>)]</span>
<span class='kw'>mod</span> <span class='ident'>mswin</span>;
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>not</span>(<span class='ident'>windows</span>))]</span>
<span class='kw'>mod</span> <span class='ident'>posix</span>;
<span class='doccomment'>/// Find Process by Requested Process ID.</span>
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>windows</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>find</span>(<span class='ident'>pid</span>: <span class='ident'>i32</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='ident'>Process</span>, <span class='ident'>Problem</span><span class='op'>></span> {
<span class='kw'>return</span> <span class='ident'>mswin</span>::<span class='ident'>find</span>(<span class='ident'>pid</span> <span class='kw'>as</span> <span class='ident'>u32</span>);
}
<span class='doccomment'>/// Find Process by Requested Process ID.</span>
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>not</span>(<span class='ident'>windows</span>))]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>find</span>(<span class='ident'>pid</span>: <span class='ident'>i32</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='ident'>Process</span>, <span class='ident'>Problem</span><span class='op'>></span> {
<span class='kw'>return</span> <span class='ident'>posix</span>::<span class='ident'>find</span>(<span class='ident'>pid</span>);
}
<span class='doccomment'>/// Get Current Process Object.</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>current</span>() <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='ident'>Process</span>, <span class='ident'>Problem</span><span class='op'>></span> {
<span class='kw'>unsafe</span> {
<span class='kw'>let</span> <span class='ident'>pid</span> <span class='op'>=</span> <span class='ident'>libc</span>::<span class='ident'>getpid</span>() <span class='kw'>as</span> <span class='ident'>i32</span>;
<span class='kw'>return</span> ::<span class='ident'>find</span>(<span class='ident'>pid</span>);
}
}
</pre>
</section>
<section id='search' class="content hidden"></section>
<section class="footer"></section>
<aside id="help" class="hidden">
<div>
<h1 class="hidden">Help</h1>
<div class="shortcuts">
<h2>Keyboard Shortcuts</h2>
<dl>
<dt>?</dt>
<dd>Show this help dialog</dd>
<dt>S</dt>
<dd>Focus the search field</dd>
<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 = "pentry";
window.playgroundUrl = "";
</script>
<script src="../../../jquery.js"></script>
<script src="../../../main.js"></script>
<script defer src="../../../search-index.js"></script>
</body>
</html>