196 lines
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196 lines
23 KiB
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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 `/home/newkirk/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.49.0/src/loom/std/parking_lot.rs`."><title>parking_lot.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="tokio" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[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="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">tokio/loom/std/</div>parking_lot.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="doccomment">//! A minimal adaption of the `parking_lot` synchronization primitives to the
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<a href=#2 id=2 data-nosnippet>2</a>//! equivalent `std::sync` types.
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<a href=#3 id=3 data-nosnippet>3</a>//!
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<a href=#4 id=4 data-nosnippet>4</a>//! This can be extended to additional types/methods as required.
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<a href=#5 id=5 data-nosnippet>5</a>
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<a href=#6 id=6 data-nosnippet>6</a></span><span class="kw">use </span>std::fmt;
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<a href=#7 id=7 data-nosnippet>7</a><span class="kw">use </span>std::marker::PhantomData;
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<a href=#8 id=8 data-nosnippet>8</a><span class="kw">use </span>std::ops::{Deref, DerefMut};
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<a href=#9 id=9 data-nosnippet>9</a><span class="kw">use </span>std::sync::{LockResult, TryLockError};
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<a href=#10 id=10 data-nosnippet>10</a><span class="kw">use </span>std::time::Duration;
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<a href=#11 id=11 data-nosnippet>11</a>
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<a href=#12 id=12 data-nosnippet>12</a><span class="comment">// All types in this file are marked with PhantomData to ensure that
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<a href=#13 id=13 data-nosnippet>13</a>// parking_lot's send_guard feature does not leak through and affect when Tokio
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<a href=#14 id=14 data-nosnippet>14</a>// types are Send.
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<a href=#15 id=15 data-nosnippet>15</a>//
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<a href=#16 id=16 data-nosnippet>16</a>// See <https://github.com/tokio-rs/tokio/pull/4359> for more info.
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<a href=#17 id=17 data-nosnippet>17</a>
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<a href=#18 id=18 data-nosnippet>18</a>// Types that do not need wrapping
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<a href=#19 id=19 data-nosnippet>19</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>parking_lot::WaitTimeoutResult;
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<a href=#20 id=20 data-nosnippet>20</a>
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<a href=#21 id=21 data-nosnippet>21</a><span class="attr">#[derive(Debug)]
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<a href=#22 id=22 data-nosnippet>22</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Mutex<T: <span class="question-mark">?</span>Sized>(PhantomData<std::sync::Mutex<T>>, parking_lot::Mutex<T>);
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<a href=#23 id=23 data-nosnippet>23</a>
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<a href=#24 id=24 data-nosnippet>24</a><span class="attr">#[derive(Debug)]
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<a href=#25 id=25 data-nosnippet>25</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>RwLock<T>(PhantomData<std::sync::RwLock<T>>, parking_lot::RwLock<T>);
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<a href=#26 id=26 data-nosnippet>26</a>
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<a href=#27 id=27 data-nosnippet>27</a><span class="attr">#[derive(Debug)]
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<a href=#28 id=28 data-nosnippet>28</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Condvar(PhantomData<std::sync::Condvar>, parking_lot::Condvar);
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<a href=#29 id=29 data-nosnippet>29</a>
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<a href=#30 id=30 data-nosnippet>30</a><span class="attr">#[derive(Debug)]
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<a href=#31 id=31 data-nosnippet>31</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>MutexGuard<<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized>(
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<a href=#32 id=32 data-nosnippet>32</a> PhantomData<std::sync::MutexGuard<<span class="lifetime">'a</span>, T>>,
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<a href=#33 id=33 data-nosnippet>33</a> parking_lot::MutexGuard<<span class="lifetime">'a</span>, T>,
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<a href=#34 id=34 data-nosnippet>34</a>);
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<a href=#35 id=35 data-nosnippet>35</a>
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<a href=#36 id=36 data-nosnippet>36</a><span class="attr">#[derive(Debug)]
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<a href=#37 id=37 data-nosnippet>37</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>RwLockReadGuard<<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized>(
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<a href=#38 id=38 data-nosnippet>38</a> PhantomData<std::sync::RwLockReadGuard<<span class="lifetime">'a</span>, T>>,
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<a href=#39 id=39 data-nosnippet>39</a> parking_lot::RwLockReadGuard<<span class="lifetime">'a</span>, T>,
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<a href=#40 id=40 data-nosnippet>40</a>);
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<a href=#41 id=41 data-nosnippet>41</a>
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<a href=#42 id=42 data-nosnippet>42</a><span class="attr">#[derive(Debug)]
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<a href=#43 id=43 data-nosnippet>43</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>RwLockWriteGuard<<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized>(
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<a href=#44 id=44 data-nosnippet>44</a> PhantomData<std::sync::RwLockWriteGuard<<span class="lifetime">'a</span>, T>>,
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<a href=#45 id=45 data-nosnippet>45</a> parking_lot::RwLockWriteGuard<<span class="lifetime">'a</span>, T>,
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<a href=#46 id=46 data-nosnippet>46</a>);
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<a href=#47 id=47 data-nosnippet>47</a>
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<a href=#48 id=48 data-nosnippet>48</a><span class="kw">impl</span><T> Mutex<T> {
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<a href=#49 id=49 data-nosnippet>49</a> <span class="attr">#[inline]
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<a href=#50 id=50 data-nosnippet>50</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(t: T) -> Mutex<T> {
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<a href=#51 id=51 data-nosnippet>51</a> Mutex(PhantomData, parking_lot::Mutex::new(t))
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<a href=#52 id=52 data-nosnippet>52</a> }
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<a href=#53 id=53 data-nosnippet>53</a>
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<a href=#54 id=54 data-nosnippet>54</a> <span class="attr">#[inline]
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<a href=#55 id=55 data-nosnippet>55</a> #[cfg(not(all(loom, test)))]
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<a href=#56 id=56 data-nosnippet>56</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">const fn </span>const_new(t: T) -> Mutex<T> {
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<a href=#57 id=57 data-nosnippet>57</a> Mutex(PhantomData, parking_lot::const_mutex(t))
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<a href=#58 id=58 data-nosnippet>58</a> }
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<a href=#59 id=59 data-nosnippet>59</a>
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<a href=#60 id=60 data-nosnippet>60</a> <span class="attr">#[inline]
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<a href=#61 id=61 data-nosnippet>61</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>lock(<span class="kw-2">&</span><span class="self">self</span>) -> MutexGuard<<span class="lifetime">'_</span>, T> {
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<a href=#62 id=62 data-nosnippet>62</a> MutexGuard(PhantomData, <span class="self">self</span>.<span class="number">1</span>.lock())
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<a href=#63 id=63 data-nosnippet>63</a> }
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<a href=#64 id=64 data-nosnippet>64</a>
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<a href=#65 id=65 data-nosnippet>65</a> <span class="attr">#[inline]
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<a href=#66 id=66 data-nosnippet>66</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>try_lock(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><MutexGuard<<span class="lifetime">'_</span>, T>> {
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<a href=#67 id=67 data-nosnippet>67</a> <span class="self">self</span>.<span class="number">1
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<a href=#68 id=68 data-nosnippet>68</a> </span>.try_lock()
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<a href=#69 id=69 data-nosnippet>69</a> .map(|guard| MutexGuard(PhantomData, guard))
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<a href=#70 id=70 data-nosnippet>70</a> }
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<a href=#71 id=71 data-nosnippet>71</a>
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<a href=#72 id=72 data-nosnippet>72</a> <span class="attr">#[inline]
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<a href=#73 id=73 data-nosnippet>73</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>get_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>T {
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<a href=#74 id=74 data-nosnippet>74</a> <span class="self">self</span>.<span class="number">1</span>.get_mut()
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<a href=#75 id=75 data-nosnippet>75</a> }
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<a href=#76 id=76 data-nosnippet>76</a>
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<a href=#77 id=77 data-nosnippet>77</a> <span class="comment">// Note: Additional methods `is_poisoned` and `into_inner`, can be
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<a href=#78 id=78 data-nosnippet>78</a> // provided here as needed.
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<a href=#79 id=79 data-nosnippet>79</a></span>}
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<a href=#80 id=80 data-nosnippet>80</a>
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<a href=#81 id=81 data-nosnippet>81</a><span class="kw">impl</span><<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized> Deref <span class="kw">for </span>MutexGuard<<span class="lifetime">'a</span>, T> {
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<a href=#82 id=82 data-nosnippet>82</a> <span class="kw">type </span>Target = T;
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<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">fn </span>deref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>T {
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<a href=#84 id=84 data-nosnippet>84</a> <span class="self">self</span>.<span class="number">1</span>.deref()
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<a href=#85 id=85 data-nosnippet>85</a> }
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<a href=#86 id=86 data-nosnippet>86</a>}
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<a href=#87 id=87 data-nosnippet>87</a>
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<a href=#88 id=88 data-nosnippet>88</a><span class="kw">impl</span><<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized> DerefMut <span class="kw">for </span>MutexGuard<<span class="lifetime">'a</span>, T> {
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<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">fn </span>deref_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>T {
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<a href=#90 id=90 data-nosnippet>90</a> <span class="self">self</span>.<span class="number">1</span>.deref_mut()
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<a href=#91 id=91 data-nosnippet>91</a> }
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<a href=#92 id=92 data-nosnippet>92</a>}
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<a href=#93 id=93 data-nosnippet>93</a>
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<a href=#94 id=94 data-nosnippet>94</a><span class="kw">impl</span><T> RwLock<T> {
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<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(t: T) -> RwLock<T> {
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<a href=#96 id=96 data-nosnippet>96</a> RwLock(PhantomData, parking_lot::RwLock::new(t))
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<a href=#97 id=97 data-nosnippet>97</a> }
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<a href=#98 id=98 data-nosnippet>98</a>
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<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>read(<span class="kw-2">&</span><span class="self">self</span>) -> RwLockReadGuard<<span class="lifetime">'_</span>, T> {
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<a href=#100 id=100 data-nosnippet>100</a> RwLockReadGuard(PhantomData, <span class="self">self</span>.<span class="number">1</span>.read())
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<a href=#101 id=101 data-nosnippet>101</a> }
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<a href=#102 id=102 data-nosnippet>102</a>
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<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>try_read(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><RwLockReadGuard<<span class="lifetime">'_</span>, T>> {
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<a href=#104 id=104 data-nosnippet>104</a> <span class="self">self</span>.<span class="number">1
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<a href=#105 id=105 data-nosnippet>105</a> </span>.try_read()
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<a href=#106 id=106 data-nosnippet>106</a> .map(|guard| RwLockReadGuard(PhantomData, guard))
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<a href=#107 id=107 data-nosnippet>107</a> }
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<a href=#108 id=108 data-nosnippet>108</a>
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<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>write(<span class="kw-2">&</span><span class="self">self</span>) -> RwLockWriteGuard<<span class="lifetime">'_</span>, T> {
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<a href=#110 id=110 data-nosnippet>110</a> RwLockWriteGuard(PhantomData, <span class="self">self</span>.<span class="number">1</span>.write())
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<a href=#111 id=111 data-nosnippet>111</a> }
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<a href=#112 id=112 data-nosnippet>112</a>
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<a href=#113 id=113 data-nosnippet>113</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>try_write(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><RwLockWriteGuard<<span class="lifetime">'_</span>, T>> {
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<a href=#114 id=114 data-nosnippet>114</a> <span class="self">self</span>.<span class="number">1
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<a href=#115 id=115 data-nosnippet>115</a> </span>.try_write()
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<a href=#116 id=116 data-nosnippet>116</a> .map(|guard| RwLockWriteGuard(PhantomData, guard))
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<a href=#117 id=117 data-nosnippet>117</a> }
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<a href=#118 id=118 data-nosnippet>118</a>}
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<a href=#119 id=119 data-nosnippet>119</a>
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<a href=#120 id=120 data-nosnippet>120</a><span class="kw">impl</span><<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized> Deref <span class="kw">for </span>RwLockReadGuard<<span class="lifetime">'a</span>, T> {
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<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">type </span>Target = T;
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<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">fn </span>deref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>T {
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<a href=#123 id=123 data-nosnippet>123</a> <span class="self">self</span>.<span class="number">1</span>.deref()
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<a href=#124 id=124 data-nosnippet>124</a> }
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<a href=#125 id=125 data-nosnippet>125</a>}
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<a href=#126 id=126 data-nosnippet>126</a>
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<a href=#127 id=127 data-nosnippet>127</a><span class="kw">impl</span><<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized> Deref <span class="kw">for </span>RwLockWriteGuard<<span class="lifetime">'a</span>, T> {
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<a href=#128 id=128 data-nosnippet>128</a> <span class="kw">type </span>Target = T;
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<a href=#129 id=129 data-nosnippet>129</a> <span class="kw">fn </span>deref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>T {
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<a href=#130 id=130 data-nosnippet>130</a> <span class="self">self</span>.<span class="number">1</span>.deref()
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<a href=#131 id=131 data-nosnippet>131</a> }
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<a href=#132 id=132 data-nosnippet>132</a>}
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<a href=#133 id=133 data-nosnippet>133</a>
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<a href=#134 id=134 data-nosnippet>134</a><span class="kw">impl</span><<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized> DerefMut <span class="kw">for </span>RwLockWriteGuard<<span class="lifetime">'a</span>, T> {
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<a href=#135 id=135 data-nosnippet>135</a> <span class="kw">fn </span>deref_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>T {
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<a href=#136 id=136 data-nosnippet>136</a> <span class="self">self</span>.<span class="number">1</span>.deref_mut()
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<a href=#137 id=137 data-nosnippet>137</a> }
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<a href=#138 id=138 data-nosnippet>138</a>}
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<a href=#139 id=139 data-nosnippet>139</a>
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<a href=#140 id=140 data-nosnippet>140</a><span class="kw">impl </span>Condvar {
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<a href=#141 id=141 data-nosnippet>141</a> <span class="attr">#[inline]
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<a href=#142 id=142 data-nosnippet>142</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new() -> Condvar {
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<a href=#143 id=143 data-nosnippet>143</a> Condvar(PhantomData, parking_lot::Condvar::new())
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<a href=#144 id=144 data-nosnippet>144</a> }
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<a href=#145 id=145 data-nosnippet>145</a>
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<a href=#146 id=146 data-nosnippet>146</a> <span class="attr">#[inline]
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<a href=#147 id=147 data-nosnippet>147</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>notify_one(<span class="kw-2">&</span><span class="self">self</span>) {
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<a href=#148 id=148 data-nosnippet>148</a> <span class="self">self</span>.<span class="number">1</span>.notify_one();
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<a href=#149 id=149 data-nosnippet>149</a> }
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<a href=#150 id=150 data-nosnippet>150</a>
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<a href=#151 id=151 data-nosnippet>151</a> <span class="attr">#[inline]
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<a href=#152 id=152 data-nosnippet>152</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>notify_all(<span class="kw-2">&</span><span class="self">self</span>) {
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<a href=#153 id=153 data-nosnippet>153</a> <span class="self">self</span>.<span class="number">1</span>.notify_all();
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<a href=#154 id=154 data-nosnippet>154</a> }
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<a href=#155 id=155 data-nosnippet>155</a>
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<a href=#156 id=156 data-nosnippet>156</a> <span class="attr">#[inline]
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<a href=#157 id=157 data-nosnippet>157</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>wait<<span class="lifetime">'a</span>, T>(
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<a href=#158 id=158 data-nosnippet>158</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#159 id=159 data-nosnippet>159</a> <span class="kw-2">mut </span>guard: MutexGuard<<span class="lifetime">'a</span>, T>,
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<a href=#160 id=160 data-nosnippet>160</a> ) -> LockResult<MutexGuard<<span class="lifetime">'a</span>, T>> {
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<a href=#161 id=161 data-nosnippet>161</a> <span class="self">self</span>.<span class="number">1</span>.wait(<span class="kw-2">&mut </span>guard.<span class="number">1</span>);
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<a href=#162 id=162 data-nosnippet>162</a> <span class="prelude-val">Ok</span>(guard)
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<a href=#163 id=163 data-nosnippet>163</a> }
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<a href=#164 id=164 data-nosnippet>164</a>
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<a href=#165 id=165 data-nosnippet>165</a> <span class="attr">#[inline]
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<a href=#166 id=166 data-nosnippet>166</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>wait_timeout<<span class="lifetime">'a</span>, T>(
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<a href=#167 id=167 data-nosnippet>167</a> <span class="kw-2">&</span><span class="self">self</span>,
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<a href=#168 id=168 data-nosnippet>168</a> <span class="kw-2">mut </span>guard: MutexGuard<<span class="lifetime">'a</span>, T>,
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<a href=#169 id=169 data-nosnippet>169</a> timeout: Duration,
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<a href=#170 id=170 data-nosnippet>170</a> ) -> LockResult<(MutexGuard<<span class="lifetime">'a</span>, T>, WaitTimeoutResult)> {
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<a href=#171 id=171 data-nosnippet>171</a> <span class="kw">let </span>wtr = <span class="self">self</span>.<span class="number">1</span>.wait_for(<span class="kw-2">&mut </span>guard.<span class="number">1</span>, timeout);
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<a href=#172 id=172 data-nosnippet>172</a> <span class="prelude-val">Ok</span>((guard, wtr))
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<a href=#173 id=173 data-nosnippet>173</a> }
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<a href=#174 id=174 data-nosnippet>174</a>
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<a href=#175 id=175 data-nosnippet>175</a> <span class="comment">// Note: Additional methods `wait_timeout_ms`, `wait_timeout_until`,
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<a href=#176 id=176 data-nosnippet>176</a> // `wait_until` can be provided here as needed.
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<a href=#177 id=177 data-nosnippet>177</a></span>}
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<a href=#178 id=178 data-nosnippet>178</a>
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<a href=#179 id=179 data-nosnippet>179</a><span class="kw">impl</span><<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized + fmt::Display> fmt::Display <span class="kw">for </span>MutexGuard<<span class="lifetime">'a</span>, T> {
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<a href=#180 id=180 data-nosnippet>180</a> <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result {
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<a href=#181 id=181 data-nosnippet>181</a> fmt::Display::fmt(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">1</span>, f)
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<a href=#182 id=182 data-nosnippet>182</a> }
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<a href=#183 id=183 data-nosnippet>183</a>}
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<a href=#184 id=184 data-nosnippet>184</a>
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<a href=#185 id=185 data-nosnippet>185</a><span class="kw">impl</span><<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized + fmt::Display> fmt::Display <span class="kw">for </span>RwLockReadGuard<<span class="lifetime">'a</span>, T> {
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<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result {
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<a href=#187 id=187 data-nosnippet>187</a> fmt::Display::fmt(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">1</span>, f)
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<a href=#188 id=188 data-nosnippet>188</a> }
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<a href=#189 id=189 data-nosnippet>189</a>}
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<a href=#190 id=190 data-nosnippet>190</a>
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<a href=#191 id=191 data-nosnippet>191</a><span class="kw">impl</span><<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized + fmt::Display> fmt::Display <span class="kw">for </span>RwLockWriteGuard<<span class="lifetime">'a</span>, T> {
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<a href=#192 id=192 data-nosnippet>192</a> <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result {
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<a href=#193 id=193 data-nosnippet>193</a> fmt::Display::fmt(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">1</span>, f)
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<a href=#194 id=194 data-nosnippet>194</a> }
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<a href=#195 id=195 data-nosnippet>195</a>}
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</code></pre></div></section></main></body></html> |