| <!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 `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/measure_time-0.8.2/src/formatted_duration.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>formatted_duration.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.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"></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"><a class="sidebar-logo" href="../../measure_time/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../measure_time/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="kw">use </span>std::{fmt, time::Duration}; |
| |
| <span class="doccomment">/// A wrapper type that allows you to Display a Duration |
| </span><span class="attribute">#[derive(Debug, Clone)] |
| </span><span class="kw">pub struct </span>FormattedDuration(Duration); |
| |
| <span class="kw">pub fn </span>format_duration(val: Duration) -> FormattedDuration { |
| FormattedDuration(val) |
| } |
| |
| <span class="kw">fn </span>item_plural(f: <span class="kw-2">&mut </span>fmt::Formatter, started: <span class="kw-2">&mut </span>bool, name: <span class="kw-2">&</span>str, value: u64) -> fmt::Result { |
| <span class="kw">if </span>value > <span class="number">0 </span>{ |
| <span class="kw">if </span><span class="kw-2">*</span>started { |
| f.write_str(<span class="string">" "</span>)<span class="question-mark">?</span>; |
| } |
| <span class="macro">write!</span>(f, <span class="string">"{}{}"</span>, value, name)<span class="question-mark">?</span>; |
| <span class="kw">if </span>value > <span class="number">1 </span>{ |
| f.write_str(<span class="string">"s"</span>)<span class="question-mark">?</span>; |
| } |
| <span class="kw-2">*</span>started = <span class="bool-val">true</span>; |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| <span class="kw">fn </span>item_ms( |
| f: <span class="kw-2">&mut </span>fmt::Formatter, |
| started: <span class="kw-2">&mut </span>bool, |
| name: <span class="kw-2">&</span>str, |
| duration: Duration, |
| ) -> fmt::Result { |
| <span class="comment">// Three cases |
| // 1. Above 30seconds, we dont' show ms anymore |
| // 2. Between 30sec and 1 sec we don't show rounded ms |
| // 3. Below we round to two digits |
| </span><span class="kw">if </span>Duration::new(<span class="number">30</span>, <span class="number">0</span>) < duration { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| } |
| <span class="kw">if </span>Duration::new(<span class="number">1</span>, <span class="number">0</span>) < duration { |
| <span class="kw">if </span><span class="kw-2">*</span>started { |
| f.write_str(<span class="string">" "</span>)<span class="question-mark">?</span>; |
| } |
| <span class="macro">write!</span>(f, <span class="string">"{}{}"</span>, duration.subsec_millis(), name)<span class="question-mark">?</span>; |
| <span class="kw-2">*</span>started = <span class="bool-val">true</span>; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| } |
| <span class="comment">//show rounded |
| </span><span class="kw">if </span><span class="kw-2">*</span>started { |
| f.write_str(<span class="string">" "</span>)<span class="question-mark">?</span>; |
| } |
| <span class="macro">write!</span>( |
| f, |
| <span class="string">"{}{}"</span>, |
| (duration.subsec_nanos() / <span class="number">10_000</span>) <span class="kw">as </span>f32 / <span class="number">100.</span>, |
| name |
| )<span class="question-mark">?</span>; |
| <span class="kw-2">*</span>started = <span class="bool-val">true</span>; |
| <span class="prelude-val">Ok</span>(()) |
| } |
| <span class="kw">fn </span>item( |
| f: <span class="kw-2">&mut </span>fmt::Formatter, |
| started: <span class="kw-2">&mut </span>bool, |
| name: <span class="kw-2">&</span>str, |
| value: u32, |
| skip: bool, |
| ) -> fmt::Result { |
| <span class="kw">if </span>skip { |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| } |
| <span class="kw">if </span>value > <span class="number">0 </span>{ |
| <span class="kw">if </span><span class="kw-2">*</span>started { |
| f.write_str(<span class="string">" "</span>)<span class="question-mark">?</span>; |
| } |
| <span class="macro">write!</span>(f, <span class="string">"{}{}"</span>, value, name)<span class="question-mark">?</span>; |
| <span class="kw-2">*</span>started = <span class="bool-val">true</span>; |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">const </span>ONE_MINUTE_IN_SECONDS: u64 = <span class="number">60</span>; |
| <span class="kw">const </span>ONE_HOURS_IN_SECONDS: u64 = ONE_MINUTE_IN_SECONDS * <span class="number">60</span>; |
| <span class="kw">const </span>ONE_DAY_IN_SECONDS: u64 = ONE_HOURS_IN_SECONDS * <span class="number">24</span>; |
| |
| <span class="kw">impl </span>fmt::Display <span class="kw">for </span>FormattedDuration { |
| <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) -> fmt::Result { |
| <span class="kw">let </span>secs = <span class="self">self</span>.<span class="number">0</span>.as_secs(); |
| <span class="kw">let </span>nanos = <span class="self">self</span>.<span class="number">0</span>.subsec_nanos(); |
| |
| <span class="kw">if </span>secs == <span class="number">0 </span>&& nanos == <span class="number">0 </span>{ |
| f.write_str(<span class="string">"0s"</span>)<span class="question-mark">?</span>; |
| <span class="kw">return </span><span class="prelude-val">Ok</span>(()); |
| } |
| |
| <span class="kw">let </span>years = secs / <span class="number">31_557_600</span>; <span class="comment">// 365.25d |
| </span><span class="kw">let </span>ydays = secs % <span class="number">31_557_600</span>; |
| <span class="kw">let </span>months = ydays / <span class="number">2_630_016</span>; <span class="comment">// 30.44d |
| </span><span class="kw">let </span>mdays = ydays % <span class="number">2_630_016</span>; |
| <span class="kw">let </span>days = mdays / <span class="number">86400</span>; |
| <span class="kw">let </span>day_secs = mdays % <span class="number">86400</span>; |
| <span class="kw">let </span>hours = day_secs / <span class="number">3600</span>; |
| <span class="kw">let </span>minutes = day_secs % <span class="number">3600 </span>/ <span class="number">60</span>; |
| <span class="kw">let </span>seconds = day_secs % <span class="number">60</span>; |
| |
| <span class="kw">let </span>started = <span class="kw-2">&mut </span><span class="bool-val">false</span>; |
| item_plural(f, started, <span class="string">"year"</span>, years)<span class="question-mark">?</span>; |
| item_plural(f, started, <span class="string">"month"</span>, months)<span class="question-mark">?</span>; |
| item_plural(f, started, <span class="string">"day"</span>, days)<span class="question-mark">?</span>; |
| |
| item( |
| f, |
| started, |
| <span class="string">"h"</span>, |
| hours <span class="kw">as </span>u32, |
| <span class="self">self</span>.<span class="number">0 </span>> Duration::from_secs(ONE_DAY_IN_SECONDS * <span class="number">30</span>), <span class="comment">// skip hours after 30 days |
| </span>)<span class="question-mark">?</span>; |
| item( |
| f, |
| started, |
| <span class="string">"m"</span>, |
| minutes <span class="kw">as </span>u32, |
| <span class="self">self</span>.<span class="number">0 </span>> Duration::from_secs(ONE_DAY_IN_SECONDS), <span class="comment">// skip minutes after one day |
| </span>)<span class="question-mark">?</span>; |
| item( |
| f, |
| started, |
| <span class="string">"s"</span>, |
| seconds <span class="kw">as </span>u32, |
| <span class="self">self</span>.<span class="number">0 </span>> Duration::from_secs(ONE_HOURS_IN_SECONDS * <span class="number">3</span>), <span class="comment">// skip seconds after one hour |
| </span>)<span class="question-mark">?</span>; |
| item_ms(f, started, <span class="string">"ms"</span>, <span class="self">self</span>.<span class="number">0</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">pub fn </span>human_readable_time(duration: Duration) -> String { |
| format_duration(duration).to_string() |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>human_readable_time_test() { |
| <span class="macro">assert_eq!</span>( |
| human_readable_time(Duration::new(<span class="number">5</span>, <span class="number">900_000_000</span>)), |
| <span class="string">"5s 900ms" |
| </span>); |
| <span class="macro">assert_eq!</span>( |
| human_readable_time(Duration::new(ONE_HOURS_IN_SECONDS + <span class="number">1</span>, <span class="number">900_123_000</span>)), |
| <span class="string">"1h 1s" |
| </span>); |
| <span class="macro">assert_eq!</span>( |
| human_readable_time(Duration::new(ONE_HOURS_IN_SECONDS - <span class="number">1</span>, <span class="number">900_123_000</span>)), |
| <span class="string">"59m 59s" |
| </span>); |
| <span class="macro">assert_eq!</span>( |
| human_readable_time(Duration::new(<span class="number">3 </span>* ONE_HOURS_IN_SECONDS + <span class="number">1</span>, <span class="number">900_123_000</span>)), |
| <span class="string">"3h" |
| </span>); |
| <span class="macro">assert_eq!</span>( |
| human_readable_time(Duration::new(<span class="number">5</span>, <span class="number">900_123_000</span>)), |
| <span class="string">"5s 900ms" |
| </span>); |
| <span class="macro">assert_eq!</span>( |
| human_readable_time(Duration::new( |
| ONE_HOURS_IN_SECONDS * <span class="number">10 </span>+ ONE_MINUTE_IN_SECONDS * <span class="number">10 </span>+ <span class="number">10</span>, <span class="comment">// don't print seconds |
| </span><span class="number">123 |
| </span>)), |
| <span class="string">"10h 10m" |
| </span>); |
| <span class="macro">assert_eq!</span>( |
| human_readable_time(Duration::new( |
| ONE_HOURS_IN_SECONDS * <span class="number">10 </span>+ ONE_MINUTE_IN_SECONDS, |
| <span class="number">123 |
| </span>)), |
| <span class="string">"10h 1m" |
| </span>); |
| <span class="macro">assert_eq!</span>( |
| human_readable_time(Duration::new(ONE_HOURS_IN_SECONDS * <span class="number">3 </span>+ <span class="number">10</span>, <span class="number">123</span>)), |
| <span class="string">"3h" |
| </span>); |
| <span class="macro">assert_eq!</span>(human_readable_time(Duration::new(<span class="number">0</span>, <span class="number">900_000</span>)), <span class="string">"0.9ms"</span>); |
| <span class="macro">assert_eq!</span>(human_readable_time(Duration::new(<span class="number">0</span>, <span class="number">950_000</span>)), <span class="string">"0.95ms"</span>); |
| <span class="macro">assert_eq!</span>(human_readable_time(Duration::new(<span class="number">0</span>, <span class="number">1_950_000</span>)), <span class="string">"1.95ms"</span>); |
| <span class="macro">assert_eq!</span>(human_readable_time(Duration::new(<span class="number">0</span>, <span class="number">1_950_000</span>)), <span class="string">"1.95ms"</span>); |
| <span class="macro">assert_eq!</span>(human_readable_time(Duration::new(<span class="number">0</span>, <span class="number">1_957_123</span>)), <span class="string">"1.95ms"</span>); |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="measure_time" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
