<!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\async\patterns.rs`."><title>patterns.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"><script id="default-settings"
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<a href=#2 id=2 data-nosnippet>2</a>///
<a href=#3 id=3 data-nosnippet>3</a>/// This module provides timeout wrappers, retry mechanisms, circuit breakers, parallel processing,
<a href=#4 id=4 data-nosnippet>4</a>/// resource pools, streaming processors, and performance monitoring for robust async operations.
<a href=#5 id=5 data-nosnippet>5</a></span><span class="comment">// Standard library imports
<a href=#6 id=6 data-nosnippet>6</a></span><span class="kw">use </span>std::{marker::PhantomData, sync::Arc, time::Duration};
<a href=#7 id=7 data-nosnippet>7</a>
<a href=#8 id=8 data-nosnippet>8</a><span class="comment">// External crate imports
<a href=#9 id=9 data-nosnippet>9</a></span><span class="kw">use </span>futures_lite;
<a href=#10 id=10 data-nosnippet>10</a><span class="kw">use </span>parking_lot::Mutex;
<a href=#11 id=11 data-nosnippet>11</a><span class="kw">use </span>smol::Timer;
<a href=#12 id=12 data-nosnippet>12</a>
<a href=#13 id=13 data-nosnippet>13</a><span class="doccomment">/// Async timeout wrapper (non-blocking)
<a href=#14 id=14 data-nosnippet>14</a>///
<a href=#15 id=15 data-nosnippet>15</a>/// # Errors
<a href=#16 id=16 data-nosnippet>16</a>///
<a href=#17 id=17 data-nosnippet>17</a>/// Returns `TimeoutError::Timeout` if the operation times out.
<a href=#18 id=18 data-nosnippet>18</a></span><span class="kw">pub async fn </span>with_timeout<T, F>(duration: Duration, future: F) -> <span class="prelude-ty">Result</span><T, TimeoutError>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">where
<a href=#20 id=20 data-nosnippet>20</a> </span>F: std::future::Future<Output = T>,
<a href=#21 id=21 data-nosnippet>21</a>{
<a href=#22 id=22 data-nosnippet>22</a> <span class="kw">match </span>futures_lite::future::or(
<a href=#23 id=23 data-nosnippet>23</a> <span class="kw">async </span>{
<a href=#24 id=24 data-nosnippet>24</a> Timer::after(duration).<span class="kw">await</span>;
<a href=#25 id=25 data-nosnippet>25</a> <span class="prelude-val">Err</span>::<T, TimeoutError>(TimeoutError::Timeout)
<a href=#26 id=26 data-nosnippet>26</a> },
<a href=#27 id=27 data-nosnippet>27</a> <span class="kw">async </span>{ <span class="prelude-val">Ok</span>(future.<span class="kw">await</span>) },
<a href=#28 id=28 data-nosnippet>28</a> )
<a href=#29 id=29 data-nosnippet>29</a> .<span class="kw">await
<a href=#30 id=30 data-nosnippet>30</a> </span>{
<a href=#31 id=31 data-nosnippet>31</a> <span class="prelude-val">Ok</span>(result) => <span class="prelude-val">Ok</span>(result),
<a href=#32 id=32 data-nosnippet>32</a> <span class="prelude-val">Err</span>(e) => <span class="prelude-val">Err</span>(e),
<a href=#33 id=33 data-nosnippet>33</a> }
<a href=#34 id=34 data-nosnippet>34</a>}
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a><span class="doccomment">/// Timeout error
<a href=#37 id=37 data-nosnippet>37</a></span><span class="attr">#[derive(Debug, Clone)]
<a href=#38 id=38 data-nosnippet>38</a></span><span class="kw">pub enum </span>TimeoutError {
<a href=#39 id=39 data-nosnippet>39</a> Timeout,
<a href=#40 id=40 data-nosnippet>40</a>}
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a><span class="doccomment">/// Async retry mechanism (non-blocking)
<a href=#43 id=43 data-nosnippet>43</a>///
<a href=#44 id=44 data-nosnippet>44</a>/// # Errors
<a href=#45 id=45 data-nosnippet>45</a>///
<a href=#46 id=46 data-nosnippet>46</a>/// Returns the last error from the operation if all attempts fail.
<a href=#47 id=47 data-nosnippet>47</a></span><span class="kw">pub async fn </span>retry_async<F, Fut, T, E>(operation: F) -> <span class="prelude-ty">Result</span><T, E>
<a href=#48 id=48 data-nosnippet>48</a><span class="kw">where
<a href=#49 id=49 data-nosnippet>49</a> </span>F: Fn() -> Fut,
<a href=#50 id=50 data-nosnippet>50</a> Fut: std::future::Future<Output = <span class="prelude-ty">Result</span><T, E>>,
<a href=#51 id=51 data-nosnippet>51</a> E: std::fmt::Debug,
<a href=#52 id=52 data-nosnippet>52</a>{
<a href=#53 id=53 data-nosnippet>53</a> retry_async_with_config(<span class="number">3</span>, Duration::from_millis(<span class="number">100</span>), operation).<span class="kw">await
<a href=#54 id=54 data-nosnippet>54</a></span>}
<a href=#55 id=55 data-nosnippet>55</a>
<a href=#56 id=56 data-nosnippet>56</a><span class="doccomment">/// Retries an async operation with custom configuration.
<a href=#57 id=57 data-nosnippet>57</a>///
<a href=#58 id=58 data-nosnippet>58</a>/// # Errors
<a href=#59 id=59 data-nosnippet>59</a>///
<a href=#60 id=60 data-nosnippet>60</a>/// Returns the last error from the operation if all attempts fail.
<a href=#61 id=61 data-nosnippet>61</a></span><span class="kw">pub async fn </span>retry_async_with_config<F, Fut, T, E>(
<a href=#62 id=62 data-nosnippet>62</a> <span class="kw-2">mut </span>attempts: usize,
<a href=#63 id=63 data-nosnippet>63</a> delay: Duration,
<a href=#64 id=64 data-nosnippet>64</a> operation: F,
<a href=#65 id=65 data-nosnippet>65</a>) -> <span class="prelude-ty">Result</span><T, E>
<a href=#66 id=66 data-nosnippet>66</a><span class="kw">where
<a href=#67 id=67 data-nosnippet>67</a> </span>F: Fn() -> Fut,
<a href=#68 id=68 data-nosnippet>68</a> Fut: std::future::Future<Output = <span class="prelude-ty">Result</span><T, E>>,
<a href=#69 id=69 data-nosnippet>69</a> E: std::fmt::Debug,
<a href=#70 id=70 data-nosnippet>70</a>{
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">loop </span>{
<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">match </span>operation().<span class="kw">await </span>{
<a href=#73 id=73 data-nosnippet>73</a> <span class="prelude-val">Ok</span>(result) => <span class="kw">return </span><span class="prelude-val">Ok</span>(result),
<a href=#74 id=74 data-nosnippet>74</a> <span class="prelude-val">Err</span>(e) => {
<a href=#75 id=75 data-nosnippet>75</a> attempts -= <span class="number">1</span>;
<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">if </span>attempts == <span class="number">0 </span>{
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">return </span><span class="prelude-val">Err</span>(e);
<a href=#78 id=78 data-nosnippet>78</a> }
<a href=#79 id=79 data-nosnippet>79</a> Timer::after(delay).<span class="kw">await</span>;
<a href=#80 id=80 data-nosnippet>80</a> }
<a href=#81 id=81 data-nosnippet>81</a> }
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a>}
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a><span class="doccomment">/// Async circuit breaker (non-blocking)
<a href=#86 id=86 data-nosnippet>86</a></span><span class="kw">pub struct </span>AsyncCircuitBreaker {
<a href=#87 id=87 data-nosnippet>87</a> failures: Mutex<u32>,
<a href=#88 id=88 data-nosnippet>88</a> threshold: u32,
<a href=#89 id=89 data-nosnippet>89</a> timeout: Duration,
<a href=#90 id=90 data-nosnippet>90</a> last_failure: Mutex<<span class="prelude-ty">Option</span><std::time::Instant>>,
<a href=#91 id=91 data-nosnippet>91</a>}
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a><span class="kw">impl </span>AsyncCircuitBreaker {
<a href=#94 id=94 data-nosnippet>94</a> <span class="doccomment">/// Create a new circuit breaker with defaults
<a href=#95 id=95 data-nosnippet>95</a> </span><span class="attr">#[must_use]
<a href=#96 id=96 data-nosnippet>96</a> </span><span class="kw">pub fn </span>new() -> <span class="self">Self </span>{
<a href=#97 id=97 data-nosnippet>97</a> <span class="self">Self</span>::with_config(<span class="number">5</span>, Duration::from_secs(<span class="number">60</span>))
<a href=#98 id=98 data-nosnippet>98</a> }
<a href=#99 id=99 data-nosnippet>99</a>
<a href=#100 id=100 data-nosnippet>100</a> <span class="doccomment">/// Create a new circuit breaker with custom config
<a href=#101 id=101 data-nosnippet>101</a> </span><span class="attr">#[must_use]
<a href=#102 id=102 data-nosnippet>102</a> </span><span class="kw">pub fn </span>with_config(threshold: u32, timeout: Duration) -> <span class="self">Self </span>{
<a href=#103 id=103 data-nosnippet>103</a> <span class="self">Self </span>{
<a href=#104 id=104 data-nosnippet>104</a> failures: Mutex::new(<span class="number">0</span>),
<a href=#105 id=105 data-nosnippet>105</a> threshold,
<a href=#106 id=106 data-nosnippet>106</a> timeout,
<a href=#107 id=107 data-nosnippet>107</a> last_failure: Mutex::new(<span class="prelude-val">None</span>),
<a href=#108 id=108 data-nosnippet>108</a> }
<a href=#109 id=109 data-nosnippet>109</a> }
<a href=#110 id=110 data-nosnippet>110</a>
<a href=#111 id=111 data-nosnippet>111</a> <span class="doccomment">/// Create a builder for advanced configuration
<a href=#112 id=112 data-nosnippet>112</a> </span><span class="attr">#[must_use]
<a href=#113 id=113 data-nosnippet>113</a> </span><span class="kw">pub fn </span>builder() -> AsyncCircuitBreakerBuilder {
<a href=#114 id=114 data-nosnippet>114</a> AsyncCircuitBreakerBuilder::new()
<a href=#115 id=115 data-nosnippet>115</a> }
<a href=#116 id=116 data-nosnippet>116</a>
<a href=#117 id=117 data-nosnippet>117</a> <span class="doccomment">/// Execute an operation with circuit breaker protection (non-blocking)
<a href=#118 id=118 data-nosnippet>118</a> ///
<a href=#119 id=119 data-nosnippet>119</a> /// # Errors
<a href=#120 id=120 data-nosnippet>120</a> ///
<a href=#121 id=121 data-nosnippet>121</a> /// Returns `CircuitBreakerError::CircuitOpen` if the circuit is open, or `CircuitBreakerError::OperationError` if the operation fails.
<a href=#122 id=122 data-nosnippet>122</a> </span><span class="kw">pub async fn </span>execute<F, Fut, T, E>(<span class="kw-2">&</span><span class="self">self</span>, operation: F) -> <span class="prelude-ty">Result</span><T, CircuitBreakerError<E>>
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">where
<a href=#124 id=124 data-nosnippet>124</a> </span>F: FnOnce() -> Fut,
<a href=#125 id=125 data-nosnippet>125</a> Fut: std::future::Future<Output = <span class="prelude-ty">Result</span><T, E>>,
<a href=#126 id=126 data-nosnippet>126</a> {
<a href=#127 id=127 data-nosnippet>127</a> <span class="comment">// Check if circuit is open
<a href=#128 id=128 data-nosnippet>128</a> </span><span class="kw">if let </span><span class="prelude-val">Some</span>(last_failure) = <span class="kw-2">*</span><span class="self">self</span>.last_failure.lock()
<a href=#129 id=129 data-nosnippet>129</a> && last_failure.elapsed() < <span class="self">self</span>.timeout
<a href=#130 id=130 data-nosnippet>130</a> {
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">return </span><span class="prelude-val">Err</span>(CircuitBreakerError::CircuitOpen);
<a href=#132 id=132 data-nosnippet>132</a> }
<a href=#133 id=133 data-nosnippet>133</a>
<a href=#134 id=134 data-nosnippet>134</a> <span class="kw">match </span>operation().<span class="kw">await </span>{
<a href=#135 id=135 data-nosnippet>135</a> <span class="prelude-val">Ok</span>(result) => {
<a href=#136 id=136 data-nosnippet>136</a> <span class="comment">// Reset on success
<a href=#137 id=137 data-nosnippet>137</a> </span><span class="kw-2">*</span><span class="self">self</span>.failures.lock() = <span class="number">0</span>;
<a href=#138 id=138 data-nosnippet>138</a> <span class="prelude-val">Ok</span>(result)
<a href=#139 id=139 data-nosnippet>139</a> }
<a href=#140 id=140 data-nosnippet>140</a> <span class="prelude-val">Err</span>(e) => {
<a href=#141 id=141 data-nosnippet>141</a> <span class="kw">let </span>failures = {
<a href=#142 id=142 data-nosnippet>142</a> <span class="kw">let </span><span class="kw-2">mut </span>f = <span class="self">self</span>.failures.lock();
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw-2">*</span>f += <span class="number">1</span>;
<a href=#144 id=144 data-nosnippet>144</a> <span class="kw-2">*</span>f
<a href=#145 id=145 data-nosnippet>145</a> };
<a href=#146 id=146 data-nosnippet>146</a>
<a href=#147 id=147 data-nosnippet>147</a> <span class="kw">if </span>failures >= <span class="self">self</span>.threshold {
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw-2">*</span><span class="self">self</span>.last_failure.lock() = <span class="prelude-val">Some</span>(std::time::Instant::now());
<a href=#149 id=149 data-nosnippet>149</a> }
<a href=#150 id=150 data-nosnippet>150</a>
<a href=#151 id=151 data-nosnippet>151</a> <span class="prelude-val">Err</span>(CircuitBreakerError::OperationError(e))
<a href=#152 id=152 data-nosnippet>152</a> }
<a href=#153 id=153 data-nosnippet>153</a> }
<a href=#154 id=154 data-nosnippet>154</a> }
<a href=#155 id=155 data-nosnippet>155</a>}
<a href=#156 id=156 data-nosnippet>156</a>
<a href=#157 id=157 data-nosnippet>157</a><span class="kw">impl </span>Default <span class="kw">for </span>AsyncCircuitBreaker {
<a href=#158 id=158 data-nosnippet>158</a> <span class="kw">fn </span>default() -> <span class="self">Self </span>{
<a href=#159 id=159 data-nosnippet>159</a> <span class="self">Self</span>::new()
<a href=#160 id=160 data-nosnippet>160</a> }
<a href=#161 id=161 data-nosnippet>161</a>}
<a href=#162 id=162 data-nosnippet>162</a>
<a href=#163 id=163 data-nosnippet>163</a><span class="doccomment">/// Builder for `AsyncCircuitBreaker` with ergonomic configuration
<a href=#164 id=164 data-nosnippet>164</a></span><span class="kw">pub struct </span>AsyncCircuitBreakerBuilder {
<a href=#165 id=165 data-nosnippet>165</a> threshold: u32,
<a href=#166 id=166 data-nosnippet>166</a> timeout: Duration,
<a href=#167 id=167 data-nosnippet>167</a>}
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a><span class="kw">impl </span>AsyncCircuitBreakerBuilder {
<a href=#170 id=170 data-nosnippet>170</a> <span class="doccomment">/// Create a new builder with defaults
<a href=#171 id=171 data-nosnippet>171</a> </span><span class="attr">#[must_use]
<a href=#172 id=172 data-nosnippet>172</a> </span><span class="kw">pub fn </span>new() -> <span class="self">Self </span>{
<a href=#173 id=173 data-nosnippet>173</a> <span class="self">Self </span>{
<a href=#174 id=174 data-nosnippet>174</a> threshold: <span class="number">5</span>,
<a href=#175 id=175 data-nosnippet>175</a> timeout: Duration::from_secs(<span class="number">60</span>),
<a href=#176 id=176 data-nosnippet>176</a> }
<a href=#177 id=177 data-nosnippet>177</a> }
<a href=#178 id=178 data-nosnippet>178</a>
<a href=#179 id=179 data-nosnippet>179</a> <span class="doccomment">/// Set the failure threshold
<a href=#180 id=180 data-nosnippet>180</a> </span><span class="attr">#[must_use]
<a href=#181 id=181 data-nosnippet>181</a> </span><span class="kw">pub fn </span>threshold(<span class="kw-2">mut </span><span class="self">self</span>, threshold: u32) -> <span class="self">Self </span>{
<a href=#182 id=182 data-nosnippet>182</a> <span class="self">self</span>.threshold = threshold;
<a href=#183 id=183 data-nosnippet>183</a> <span class="self">self
<a href=#184 id=184 data-nosnippet>184</a> </span>}
<a href=#185 id=185 data-nosnippet>185</a>
<a href=#186 id=186 data-nosnippet>186</a> <span class="doccomment">/// Set the timeout duration
<a href=#187 id=187 data-nosnippet>187</a> </span><span class="attr">#[must_use]
<a href=#188 id=188 data-nosnippet>188</a> </span><span class="kw">pub fn </span>timeout(<span class="kw-2">mut </span><span class="self">self</span>, timeout: Duration) -> <span class="self">Self </span>{
<a href=#189 id=189 data-nosnippet>189</a> <span class="self">self</span>.timeout = timeout;
<a href=#190 id=190 data-nosnippet>190</a> <span class="self">self
<a href=#191 id=191 data-nosnippet>191</a> </span>}
<a href=#192 id=192 data-nosnippet>192</a>
<a href=#193 id=193 data-nosnippet>193</a> <span class="doccomment">/// Build the `AsyncCircuitBreaker`
<a href=#194 id=194 data-nosnippet>194</a> </span><span class="attr">#[must_use]
<a href=#195 id=195 data-nosnippet>195</a> </span><span class="kw">pub fn </span>build(<span class="self">self</span>) -> AsyncCircuitBreaker {
<a href=#196 id=196 data-nosnippet>196</a> AsyncCircuitBreaker::with_config(<span class="self">self</span>.threshold, <span class="self">self</span>.timeout)
<a href=#197 id=197 data-nosnippet>197</a> }
<a href=#198 id=198 data-nosnippet>198</a>}
<a href=#199 id=199 data-nosnippet>199</a>
<a href=#200 id=200 data-nosnippet>200</a><span class="kw">impl </span>Default <span class="kw">for </span>AsyncCircuitBreakerBuilder {
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">fn </span>default() -> <span class="self">Self </span>{
<a href=#202 id=202 data-nosnippet>202</a> <span class="self">Self</span>::new()
<a href=#203 id=203 data-nosnippet>203</a> }
<a href=#204 id=204 data-nosnippet>204</a>}
<a href=#205 id=205 data-nosnippet>205</a>
<a href=#206 id=206 data-nosnippet>206</a><span class="doccomment">/// Circuit breaker error
<a href=#207 id=207 data-nosnippet>207</a></span><span class="attr">#[derive(Debug)]
<a href=#208 id=208 data-nosnippet>208</a></span><span class="kw">pub enum </span>CircuitBreakerError<E> {
<a href=#209 id=209 data-nosnippet>209</a> CircuitOpen,
<a href=#210 id=210 data-nosnippet>210</a> OperationError(E),
<a href=#211 id=211 data-nosnippet>211</a>}
<a href=#212 id=212 data-nosnippet>212</a>
<a href=#213 id=213 data-nosnippet>213</a><span class="doccomment">/// Async parallel processing (non-blocking, high-throughput)
<a href=#214 id=214 data-nosnippet>214</a></span><span class="kw">pub async fn </span>parallel_process_async<T, U, F>(data: Vec<T>, processor: F) -> Vec<U>
<a href=#215 id=215 data-nosnippet>215</a><span class="kw">where
<a href=#216 id=216 data-nosnippet>216</a> </span>T: Send + <span class="lifetime">'static</span>,
<a href=#217 id=217 data-nosnippet>217</a> U: Send + <span class="lifetime">'static</span>,
<a href=#218 id=218 data-nosnippet>218</a> F: Fn(T) -> U + Send + Sync + <span class="lifetime">'static</span>,
<a href=#219 id=219 data-nosnippet>219</a>{
<a href=#220 id=220 data-nosnippet>220</a> <span class="kw">let </span>processor = Arc::new(processor);
<a href=#221 id=221 data-nosnippet>221</a> <span class="kw">let </span><span class="kw-2">mut </span>tasks = Vec::new();
<a href=#222 id=222 data-nosnippet>222</a>
<a href=#223 id=223 data-nosnippet>223</a> <span class="kw">for </span>item <span class="kw">in </span>data {
<a href=#224 id=224 data-nosnippet>224</a> <span class="kw">let </span>processor = processor.clone();
<a href=#225 id=225 data-nosnippet>225</a> <span class="kw">let </span>task = smol::spawn(<span class="kw">async move </span>{ smol::unblock(<span class="kw">move </span>|| processor(item)).<span class="kw">await </span>});
<a href=#226 id=226 data-nosnippet>226</a> tasks.push(task);
<a href=#227 id=227 data-nosnippet>227</a> }
<a href=#228 id=228 data-nosnippet>228</a>
<a href=#229 id=229 data-nosnippet>229</a> <span class="kw">let </span><span class="kw-2">mut </span>results = Vec::new();
<a href=#230 id=230 data-nosnippet>230</a> <span class="kw">for </span>task <span class="kw">in </span>tasks {
<a href=#231 id=231 data-nosnippet>231</a> results.push(task.<span class="kw">await</span>);
<a href=#232 id=232 data-nosnippet>232</a> }
<a href=#233 id=233 data-nosnippet>233</a>
<a href=#234 id=234 data-nosnippet>234</a> results
<a href=#235 id=235 data-nosnippet>235</a>}
<a href=#236 id=236 data-nosnippet>236</a>
<a href=#237 id=237 data-nosnippet>237</a><span class="doccomment">/// Async resource pool (non-blocking)
<a href=#238 id=238 data-nosnippet>238</a></span><span class="kw">pub struct </span>AsyncResourcePool<T> {
<a href=#239 id=239 data-nosnippet>239</a> resources: Mutex<Vec<T>>,
<a href=#240 id=240 data-nosnippet>240</a> factory: Box<<span class="kw">dyn </span>Fn() -> T + Send + Sync>,
<a href=#241 id=241 data-nosnippet>241</a> max_size: usize,
<a href=#242 id=242 data-nosnippet>242</a>}
<a href=#243 id=243 data-nosnippet>243</a>
<a href=#244 id=244 data-nosnippet>244</a><span class="kw">impl</span><T> AsyncResourcePool<T> {
<a href=#245 id=245 data-nosnippet>245</a> <span class="doccomment">/// Create a new resource pool with defaults
<a href=#246 id=246 data-nosnippet>246</a> </span><span class="kw">pub fn </span>new<F>(factory: F) -> <span class="self">Self
<a href=#247 id=247 data-nosnippet>247</a> </span><span class="kw">where
<a href=#248 id=248 data-nosnippet>248</a> </span>F: Fn() -> T + Send + Sync + <span class="lifetime">'static</span>,
<a href=#249 id=249 data-nosnippet>249</a> {
<a href=#250 id=250 data-nosnippet>250</a> <span class="self">Self</span>::with_config(factory, <span class="number">10</span>)
<a href=#251 id=251 data-nosnippet>251</a> }
<a href=#252 id=252 data-nosnippet>252</a>
<a href=#253 id=253 data-nosnippet>253</a> <span class="doccomment">/// Create a new resource pool with custom config
<a href=#254 id=254 data-nosnippet>254</a> </span><span class="kw">pub fn </span>with_config<F>(factory: F, max_size: usize) -> <span class="self">Self
<a href=#255 id=255 data-nosnippet>255</a> </span><span class="kw">where
<a href=#256 id=256 data-nosnippet>256</a> </span>F: Fn() -> T + Send + Sync + <span class="lifetime">'static</span>,
<a href=#257 id=257 data-nosnippet>257</a> {
<a href=#258 id=258 data-nosnippet>258</a> <span class="self">Self </span>{
<a href=#259 id=259 data-nosnippet>259</a> resources: Mutex::new(Vec::new()),
<a href=#260 id=260 data-nosnippet>260</a> factory: Box::new(factory),
<a href=#261 id=261 data-nosnippet>261</a> max_size,
<a href=#262 id=262 data-nosnippet>262</a> }
<a href=#263 id=263 data-nosnippet>263</a> }
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a> <span class="doccomment">/// Create a builder for advanced configuration
<a href=#266 id=266 data-nosnippet>266</a> </span><span class="kw">pub fn </span>builder<F>(factory: F) -> AsyncResourcePoolBuilder<T, F>
<a href=#267 id=267 data-nosnippet>267</a> <span class="kw">where
<a href=#268 id=268 data-nosnippet>268</a> </span>F: Fn() -> T + Send + Sync + <span class="lifetime">'static</span>,
<a href=#269 id=269 data-nosnippet>269</a> {
<a href=#270 id=270 data-nosnippet>270</a> AsyncResourcePoolBuilder::new(factory)
<a href=#271 id=271 data-nosnippet>271</a> }
<a href=#272 id=272 data-nosnippet>272</a>
<a href=#273 id=273 data-nosnippet>273</a> <span class="doccomment">/// Acquire a resource from the pool (non-blocking)
<a href=#274 id=274 data-nosnippet>274</a> </span><span class="kw">pub fn </span>acquire(<span class="kw-2">&</span><span class="self">self</span>) -> ResourceGuard<<span class="lifetime">'_</span>, T> {
<a href=#275 id=275 data-nosnippet>275</a> <span class="kw">let </span>resource = {
<a href=#276 id=276 data-nosnippet>276</a> <span class="kw">let </span><span class="kw-2">mut </span>resources = <span class="self">self</span>.resources.lock();
<a href=#277 id=277 data-nosnippet>277</a> resources.pop().unwrap_or_else(|| (<span class="self">self</span>.factory)())
<a href=#278 id=278 data-nosnippet>278</a> };
<a href=#279 id=279 data-nosnippet>279</a>
<a href=#280 id=280 data-nosnippet>280</a> ResourceGuard {
<a href=#281 id=281 data-nosnippet>281</a> resource: <span class="prelude-val">Some</span>(resource),
<a href=#282 id=282 data-nosnippet>282</a> pool: <span class="self">self</span>,
<a href=#283 id=283 data-nosnippet>283</a> }
<a href=#284 id=284 data-nosnippet>284</a> }
<a href=#285 id=285 data-nosnippet>285</a>
<a href=#286 id=286 data-nosnippet>286</a> <span class="doccomment">/// Return a resource to the pool
<a href=#287 id=287 data-nosnippet>287</a> </span><span class="kw">fn </span>release(<span class="kw-2">&</span><span class="self">self</span>, resource: T) {
<a href=#288 id=288 data-nosnippet>288</a> <span class="kw">let </span><span class="kw-2">mut </span>resources = <span class="self">self</span>.resources.lock();
<a href=#289 id=289 data-nosnippet>289</a> <span class="kw">if </span>resources.len() < <span class="self">self</span>.max_size {
<a href=#290 id=290 data-nosnippet>290</a> resources.push(resource);
<a href=#291 id=291 data-nosnippet>291</a> }
<a href=#292 id=292 data-nosnippet>292</a> }
<a href=#293 id=293 data-nosnippet>293</a>}
<a href=#294 id=294 data-nosnippet>294</a>
<a href=#295 id=295 data-nosnippet>295</a><span class="doccomment">/// Builder for `AsyncResourcePool` with ergonomic configuration
<a href=#296 id=296 data-nosnippet>296</a></span><span class="kw">pub struct </span>AsyncResourcePoolBuilder<T, F> {
<a href=#297 id=297 data-nosnippet>297</a> factory: F,
<a href=#298 id=298 data-nosnippet>298</a> max_size: usize,
<a href=#299 id=299 data-nosnippet>299</a> _phantom: PhantomData<T>,
<a href=#300 id=300 data-nosnippet>300</a>}
<a href=#301 id=301 data-nosnippet>301</a>
<a href=#302 id=302 data-nosnippet>302</a><span class="kw">impl</span><T, F> AsyncResourcePoolBuilder<T, F>
<a href=#303 id=303 data-nosnippet>303</a><span class="kw">where
<a href=#304 id=304 data-nosnippet>304</a> </span>F: Fn() -> T + Send + Sync + <span class="lifetime">'static</span>,
<a href=#305 id=305 data-nosnippet>305</a>{
<a href=#306 id=306 data-nosnippet>306</a> <span class="doccomment">/// Create a new builder
<a href=#307 id=307 data-nosnippet>307</a> </span><span class="kw">pub fn </span>new(factory: F) -> <span class="self">Self </span>{
<a href=#308 id=308 data-nosnippet>308</a> <span class="self">Self </span>{
<a href=#309 id=309 data-nosnippet>309</a> factory,
<a href=#310 id=310 data-nosnippet>310</a> max_size: <span class="number">10</span>,
<a href=#311 id=311 data-nosnippet>311</a> _phantom: PhantomData,
<a href=#312 id=312 data-nosnippet>312</a> }
<a href=#313 id=313 data-nosnippet>313</a> }
<a href=#314 id=314 data-nosnippet>314</a>
<a href=#315 id=315 data-nosnippet>315</a> <span class="doccomment">/// Set the maximum pool size
<a href=#316 id=316 data-nosnippet>316</a> </span><span class="attr">#[must_use]
<a href=#317 id=317 data-nosnippet>317</a> </span><span class="kw">pub fn </span>max_size(<span class="kw-2">mut </span><span class="self">self</span>, max_size: usize) -> <span class="self">Self </span>{
<a href=#318 id=318 data-nosnippet>318</a> <span class="self">self</span>.max_size = max_size;
<a href=#319 id=319 data-nosnippet>319</a> <span class="self">self
<a href=#320 id=320 data-nosnippet>320</a> </span>}
<a href=#321 id=321 data-nosnippet>321</a>
<a href=#322 id=322 data-nosnippet>322</a> <span class="doccomment">/// Build the `AsyncResourcePool`
<a href=#323 id=323 data-nosnippet>323</a> </span><span class="kw">pub fn </span>build(<span class="self">self</span>) -> AsyncResourcePool<T> {
<a href=#324 id=324 data-nosnippet>324</a> AsyncResourcePool::with_config(<span class="self">self</span>.factory, <span class="self">self</span>.max_size)
<a href=#325 id=325 data-nosnippet>325</a> }
<a href=#326 id=326 data-nosnippet>326</a>}
<a href=#327 id=327 data-nosnippet>327</a>
<a href=#328 id=328 data-nosnippet>328</a><span class="doccomment">/// Resource guard for pool resources
<a href=#329 id=329 data-nosnippet>329</a></span><span class="kw">pub struct </span>ResourceGuard<<span class="lifetime">'a</span>, T> {
<a href=#330 id=330 data-nosnippet>330</a> resource: <span class="prelude-ty">Option</span><T>,
<a href=#331 id=331 data-nosnippet>331</a> pool: <span class="kw-2">&</span><span class="lifetime">'a </span>AsyncResourcePool<T>,
<a href=#332 id=332 data-nosnippet>332</a>}
<a href=#333 id=333 data-nosnippet>333</a>
<a href=#334 id=334 data-nosnippet>334</a><span class="kw">impl</span><T> std::ops::Deref <span class="kw">for </span>ResourceGuard<<span class="lifetime">'_</span>, T> {
<a href=#335 id=335 data-nosnippet>335</a> <span class="kw">type </span>Target = T;
<a href=#336 id=336 data-nosnippet>336</a>
<a href=#337 id=337 data-nosnippet>337</a> <span class="kw">fn </span>deref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="self">Self</span>::Target {
<a href=#338 id=338 data-nosnippet>338</a> <span class="self">self</span>.resource
<a href=#339 id=339 data-nosnippet>339</a> .as_ref()
<a href=#340 id=340 data-nosnippet>340</a> .expect(<span class="string">"resource must exist in guard"</span>)
<a href=#341 id=341 data-nosnippet>341</a> }
<a href=#342 id=342 data-nosnippet>342</a>}
<a href=#343 id=343 data-nosnippet>343</a>
<a href=#344 id=344 data-nosnippet>344</a><span class="kw">impl</span><T> std::ops::DerefMut <span class="kw">for </span>ResourceGuard<<span class="lifetime">'_</span>, T> {
<a href=#345 id=345 data-nosnippet>345</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><span class="self">Self</span>::Target {
<a href=#346 id=346 data-nosnippet>346</a> <span class="self">self</span>.resource
<a href=#347 id=347 data-nosnippet>347</a> .as_mut()
<a href=#348 id=348 data-nosnippet>348</a> .expect(<span class="string">"resource must exist in guard"</span>)
<a href=#349 id=349 data-nosnippet>349</a> }
<a href=#350 id=350 data-nosnippet>350</a>}
<a href=#351 id=351 data-nosnippet>351</a>
<a href=#352 id=352 data-nosnippet>352</a><span class="kw">impl</span><T> Drop <span class="kw">for </span>ResourceGuard<<span class="lifetime">'_</span>, T> {
<a href=#353 id=353 data-nosnippet>353</a> <span class="kw">fn </span>drop(<span class="kw-2">&mut </span><span class="self">self</span>) {
<a href=#354 id=354 data-nosnippet>354</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(resource) = <span class="self">self</span>.resource.take() {
<a href=#355 id=355 data-nosnippet>355</a> <span class="self">self</span>.pool.release(resource);
<a href=#356 id=356 data-nosnippet>356</a> }
<a href=#357 id=357 data-nosnippet>357</a> }
<a href=#358 id=358 data-nosnippet>358</a>}
<a href=#359 id=359 data-nosnippet>359</a>
<a href=#360 id=360 data-nosnippet>360</a><span class="doccomment">/// Async streaming processor (non-blocking, high-throughput)
<a href=#361 id=361 data-nosnippet>361</a></span><span class="kw">pub struct </span>AsyncStreamProcessor<T, F> {
<a href=#362 id=362 data-nosnippet>362</a> processor: F,
<a href=#363 id=363 data-nosnippet>363</a> buffer: Mutex<Vec<T>>,
<a href=#364 id=364 data-nosnippet>364</a> buffer_size: usize,
<a href=#365 id=365 data-nosnippet>365</a>}
<a href=#366 id=366 data-nosnippet>366</a>
<a href=#367 id=367 data-nosnippet>367</a><span class="kw">impl</span><T, F, Fut> AsyncStreamProcessor<T, F>
<a href=#368 id=368 data-nosnippet>368</a><span class="kw">where
<a href=#369 id=369 data-nosnippet>369</a> </span>F: Fn(Vec<T>) -> Fut + Send + Sync + <span class="lifetime">'static</span>,
<a href=#370 id=370 data-nosnippet>370</a> Fut: std::future::Future<Output = ()> + Send + <span class="lifetime">'static</span>,
<a href=#371 id=371 data-nosnippet>371</a> T: Send + <span class="lifetime">'static</span>,
<a href=#372 id=372 data-nosnippet>372</a>{
<a href=#373 id=373 data-nosnippet>373</a> <span class="doccomment">/// Create a new stream processor with defaults
<a href=#374 id=374 data-nosnippet>374</a> </span><span class="kw">pub fn </span>new(processor: F) -> <span class="self">Self </span>{
<a href=#375 id=375 data-nosnippet>375</a> <span class="self">Self</span>::with_config(processor, <span class="number">100</span>)
<a href=#376 id=376 data-nosnippet>376</a> }
<a href=#377 id=377 data-nosnippet>377</a>
<a href=#378 id=378 data-nosnippet>378</a> <span class="doccomment">/// Create a new stream processor with custom config
<a href=#379 id=379 data-nosnippet>379</a> </span><span class="kw">pub fn </span>with_config(processor: F, buffer_size: usize) -> <span class="self">Self </span>{
<a href=#380 id=380 data-nosnippet>380</a> <span class="self">Self </span>{
<a href=#381 id=381 data-nosnippet>381</a> processor,
<a href=#382 id=382 data-nosnippet>382</a> buffer: Mutex::new(Vec::new()),
<a href=#383 id=383 data-nosnippet>383</a> buffer_size,
<a href=#384 id=384 data-nosnippet>384</a> }
<a href=#385 id=385 data-nosnippet>385</a> }
<a href=#386 id=386 data-nosnippet>386</a>
<a href=#387 id=387 data-nosnippet>387</a> <span class="doccomment">/// Create a builder for advanced configuration
<a href=#388 id=388 data-nosnippet>388</a> </span><span class="kw">pub fn </span>builder(processor: F) -> AsyncStreamProcessorBuilder<T, F> {
<a href=#389 id=389 data-nosnippet>389</a> AsyncStreamProcessorBuilder::new(processor)
<a href=#390 id=390 data-nosnippet>390</a> }
<a href=#391 id=391 data-nosnippet>391</a>
<a href=#392 id=392 data-nosnippet>392</a> <span class="doccomment">/// Add an item to the stream (non-blocking)
<a href=#393 id=393 data-nosnippet>393</a> </span><span class="kw">pub async fn </span>push(<span class="kw-2">&</span><span class="self">self</span>, item: T) {
<a href=#394 id=394 data-nosnippet>394</a> <span class="kw">let </span>should_process = {
<a href=#395 id=395 data-nosnippet>395</a> <span class="kw">let </span><span class="kw-2">mut </span>buffer = <span class="self">self</span>.buffer.lock();
<a href=#396 id=396 data-nosnippet>396</a> buffer.push(item);
<a href=#397 id=397 data-nosnippet>397</a> buffer.len() >= <span class="self">self</span>.buffer_size
<a href=#398 id=398 data-nosnippet>398</a> };
<a href=#399 id=399 data-nosnippet>399</a>
<a href=#400 id=400 data-nosnippet>400</a> <span class="kw">if </span>should_process {
<a href=#401 id=401 data-nosnippet>401</a> <span class="self">self</span>.process_batch().<span class="kw">await</span>;
<a href=#402 id=402 data-nosnippet>402</a> }
<a href=#403 id=403 data-nosnippet>403</a> }
<a href=#404 id=404 data-nosnippet>404</a>
<a href=#405 id=405 data-nosnippet>405</a> <span class="doccomment">/// Flush remaining items (non-blocking)
<a href=#406 id=406 data-nosnippet>406</a> </span><span class="kw">pub async fn </span>flush(<span class="kw-2">&</span><span class="self">self</span>) {
<a href=#407 id=407 data-nosnippet>407</a> <span class="self">self</span>.process_batch().<span class="kw">await</span>;
<a href=#408 id=408 data-nosnippet>408</a> }
<a href=#409 id=409 data-nosnippet>409</a>
<a href=#410 id=410 data-nosnippet>410</a> <span class="kw">async fn </span>process_batch(<span class="kw-2">&</span><span class="self">self</span>) {
<a href=#411 id=411 data-nosnippet>411</a> <span class="kw">let </span>batch = {
<a href=#412 id=412 data-nosnippet>412</a> <span class="kw">let </span><span class="kw-2">mut </span>buffer = <span class="self">self</span>.buffer.lock();
<a href=#413 id=413 data-nosnippet>413</a> std::mem::take(<span class="kw-2">&mut *</span>buffer)
<a href=#414 id=414 data-nosnippet>414</a> };
<a href=#415 id=415 data-nosnippet>415</a>
<a href=#416 id=416 data-nosnippet>416</a> <span class="kw">if </span>!batch.is_empty() {
<a href=#417 id=417 data-nosnippet>417</a> (<span class="self">self</span>.processor)(batch).<span class="kw">await</span>;
<a href=#418 id=418 data-nosnippet>418</a> }
<a href=#419 id=419 data-nosnippet>419</a> }
<a href=#420 id=420 data-nosnippet>420</a>}
<a href=#421 id=421 data-nosnippet>421</a>
<a href=#422 id=422 data-nosnippet>422</a><span class="doccomment">/// Builder for `AsyncStreamProcessor` with ergonomic configuration
<a href=#423 id=423 data-nosnippet>423</a></span><span class="kw">pub struct </span>AsyncStreamProcessorBuilder<T, F> {
<a href=#424 id=424 data-nosnippet>424</a> processor: F,
<a href=#425 id=425 data-nosnippet>425</a> buffer_size: usize,
<a href=#426 id=426 data-nosnippet>426</a> _phantom: PhantomData<T>,
<a href=#427 id=427 data-nosnippet>427</a>}
<a href=#428 id=428 data-nosnippet>428</a>
<a href=#429 id=429 data-nosnippet>429</a><span class="kw">impl</span><T, F> AsyncStreamProcessorBuilder<T, F> {
<a href=#430 id=430 data-nosnippet>430</a> <span class="doccomment">/// Create a new builder
<a href=#431 id=431 data-nosnippet>431</a> </span><span class="kw">pub fn </span>new(processor: F) -> <span class="self">Self </span>{
<a href=#432 id=432 data-nosnippet>432</a> <span class="self">Self </span>{
<a href=#433 id=433 data-nosnippet>433</a> processor,
<a href=#434 id=434 data-nosnippet>434</a> buffer_size: <span class="number">100</span>,
<a href=#435 id=435 data-nosnippet>435</a> _phantom: PhantomData,
<a href=#436 id=436 data-nosnippet>436</a> }
<a href=#437 id=437 data-nosnippet>437</a> }
<a href=#438 id=438 data-nosnippet>438</a>
<a href=#439 id=439 data-nosnippet>439</a> <span class="doccomment">/// Set the buffer size
<a href=#440 id=440 data-nosnippet>440</a> </span><span class="attr">#[must_use]
<a href=#441 id=441 data-nosnippet>441</a> </span><span class="kw">pub fn </span>buffer_size(<span class="kw-2">mut </span><span class="self">self</span>, size: usize) -> <span class="self">Self </span>{
<a href=#442 id=442 data-nosnippet>442</a> <span class="self">self</span>.buffer_size = size;
<a href=#443 id=443 data-nosnippet>443</a> <span class="self">self
<a href=#444 id=444 data-nosnippet>444</a> </span>}
<a href=#445 id=445 data-nosnippet>445</a>
<a href=#446 id=446 data-nosnippet>446</a> <span class="doccomment">/// Build the `AsyncStreamProcessor`
<a href=#447 id=447 data-nosnippet>447</a> </span><span class="kw">pub fn </span>build<Fut>(<span class="self">self</span>) -> AsyncStreamProcessor<T, F>
<a href=#448 id=448 data-nosnippet>448</a> <span class="kw">where
<a href=#449 id=449 data-nosnippet>449</a> </span>F: Fn(Vec<T>) -> Fut + Send + Sync + <span class="lifetime">'static</span>,
<a href=#450 id=450 data-nosnippet>450</a> Fut: std::future::Future<Output = ()> + Send + <span class="lifetime">'static</span>,
<a href=#451 id=451 data-nosnippet>451</a> T: Send + <span class="lifetime">'static</span>,
<a href=#452 id=452 data-nosnippet>452</a> {
<a href=#453 id=453 data-nosnippet>453</a> AsyncStreamProcessor::with_config(<span class="self">self</span>.processor, <span class="self">self</span>.buffer_size)
<a href=#454 id=454 data-nosnippet>454</a> }
<a href=#455 id=455 data-nosnippet>455</a>}
<a href=#456 id=456 data-nosnippet>456</a>
<a href=#457 id=457 data-nosnippet>457</a><span class="doccomment">/// Async performance monitor (non-blocking)
<a href=#458 id=458 data-nosnippet>458</a></span><span class="attr">#[derive(Debug)]
<a href=#459 id=459 data-nosnippet>459</a></span><span class="kw">pub struct </span>AsyncPerformanceMonitor {
<a href=#460 id=460 data-nosnippet>460</a> operations: Mutex<Vec<(String, Duration)>>,
<a href=#461 id=461 data-nosnippet>461</a>}
<a href=#462 id=462 data-nosnippet>462</a>
<a href=#463 id=463 data-nosnippet>463</a><span class="kw">impl </span>AsyncPerformanceMonitor {
<a href=#464 id=464 data-nosnippet>464</a> <span class="doccomment">/// Create a new monitor
<a href=#465 id=465 data-nosnippet>465</a> </span><span class="attr">#[must_use]
<a href=#466 id=466 data-nosnippet>466</a> </span><span class="kw">pub fn </span>new() -> <span class="self">Self </span>{
<a href=#467 id=467 data-nosnippet>467</a> <span class="self">Self </span>{
<a href=#468 id=468 data-nosnippet>468</a> operations: Mutex::new(Vec::new()),
<a href=#469 id=469 data-nosnippet>469</a> }
<a href=#470 id=470 data-nosnippet>470</a> }
<a href=#471 id=471 data-nosnippet>471</a>
<a href=#472 id=472 data-nosnippet>472</a> <span class="doccomment">/// Time an async operation (non-blocking)
<a href=#473 id=473 data-nosnippet>473</a> </span><span class="kw">pub async fn </span>time_operation<F, Fut, T>(<span class="kw-2">&</span><span class="self">self</span>, name: <span class="kw-2">&</span>str, operation: F) -> T
<a href=#474 id=474 data-nosnippet>474</a> <span class="kw">where
<a href=#475 id=475 data-nosnippet>475</a> </span>F: FnOnce() -> Fut,
<a href=#476 id=476 data-nosnippet>476</a> Fut: std::future::Future<Output = T>,
<a href=#477 id=477 data-nosnippet>477</a> {
<a href=#478 id=478 data-nosnippet>478</a> <span class="kw">let </span>start = std::time::Instant::now();
<a href=#479 id=479 data-nosnippet>479</a> <span class="kw">let </span>result = operation().<span class="kw">await</span>;
<a href=#480 id=480 data-nosnippet>480</a> <span class="kw">let </span>duration = start.elapsed();
<a href=#481 id=481 data-nosnippet>481</a>
<a href=#482 id=482 data-nosnippet>482</a> <span class="self">self</span>.operations.lock().push((name.to_string(), duration));
<a href=#483 id=483 data-nosnippet>483</a>
<a href=#484 id=484 data-nosnippet>484</a> result
<a href=#485 id=485 data-nosnippet>485</a> }
<a href=#486 id=486 data-nosnippet>486</a>
<a href=#487 id=487 data-nosnippet>487</a> <span class="doccomment">/// Get performance statistics
<a href=#488 id=488 data-nosnippet>488</a> </span><span class="kw">pub fn </span>stats(<span class="kw-2">&</span><span class="self">self</span>) -> Vec<(String, Duration)> {
<a href=#489 id=489 data-nosnippet>489</a> <span class="self">self</span>.operations.lock().clone()
<a href=#490 id=490 data-nosnippet>490</a> }
<a href=#491 id=491 data-nosnippet>491</a>
<a href=#492 id=492 data-nosnippet>492</a> <span class="doccomment">/// Clear statistics
<a href=#493 id=493 data-nosnippet>493</a> </span><span class="kw">pub fn </span>clear(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="self">Self </span>{
<a href=#494 id=494 data-nosnippet>494</a> <span class="self">self</span>.operations.lock().clear();
<a href=#495 id=495 data-nosnippet>495</a> <span class="self">self
<a href=#496 id=496 data-nosnippet>496</a> </span>}
<a href=#497 id=497 data-nosnippet>497</a>
<a href=#498 id=498 data-nosnippet>498</a> <span class="doccomment">/// Get average duration for an operation
<a href=#499 id=499 data-nosnippet>499</a> </span><span class="kw">pub fn </span>avg_duration(<span class="kw-2">&</span><span class="self">self</span>, name: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Option</span><Duration> {
<a href=#500 id=500 data-nosnippet>500</a> <span class="kw">let </span>operations = <span class="self">self</span>.operations.lock();
<a href=#501 id=501 data-nosnippet>501</a> <span class="kw">let </span>matching: Vec<<span class="kw">_</span>> = operations
<a href=#502 id=502 data-nosnippet>502</a> .iter()
<a href=#503 id=503 data-nosnippet>503</a> .filter(|(op_name, <span class="kw">_</span>)| op_name == name)
<a href=#504 id=504 data-nosnippet>504</a> .map(|(<span class="kw">_</span>, duration)| <span class="kw-2">*</span>duration)
<a href=#505 id=505 data-nosnippet>505</a> .collect();
<a href=#506 id=506 data-nosnippet>506</a>
<a href=#507 id=507 data-nosnippet>507</a> <span class="kw">if </span>matching.is_empty() {
<a href=#508 id=508 data-nosnippet>508</a> <span class="prelude-val">None
<a href=#509 id=509 data-nosnippet>509</a> </span>} <span class="kw">else </span>{
<a href=#510 id=510 data-nosnippet>510</a> <span class="kw">let </span>total: Duration = matching.iter().sum();
<a href=#511 id=511 data-nosnippet>511</a> <span class="kw">let </span>len = u32::try_from(matching.len()).unwrap_or(<span class="number">1</span>);
<a href=#512 id=512 data-nosnippet>512</a> <span class="prelude-val">Some</span>(total / len)
<a href=#513 id=513 data-nosnippet>513</a> }
<a href=#514 id=514 data-nosnippet>514</a> }
<a href=#515 id=515 data-nosnippet>515</a>
<a href=#516 id=516 data-nosnippet>516</a> <span class="doccomment">/// Get total operations count
<a href=#517 id=517 data-nosnippet>517</a> </span><span class="kw">pub fn </span>operation_count(<span class="kw-2">&</span><span class="self">self</span>) -> usize {
<a href=#518 id=518 data-nosnippet>518</a> <span class="self">self</span>.operations.lock().len()
<a href=#519 id=519 data-nosnippet>519</a> }
<a href=#520 id=520 data-nosnippet>520</a>
<a href=#521 id=521 data-nosnippet>521</a> <span class="doccomment">/// Get operations by name
<a href=#522 id=522 data-nosnippet>522</a> </span><span class="kw">pub fn </span>operations_for(<span class="kw-2">&</span><span class="self">self</span>, name: <span class="kw-2">&</span>str) -> Vec<Duration> {
<a href=#523 id=523 data-nosnippet>523</a> <span class="self">self</span>.operations
<a href=#524 id=524 data-nosnippet>524</a> .lock()
<a href=#525 id=525 data-nosnippet>525</a> .iter()
<a href=#526 id=526 data-nosnippet>526</a> .filter(|(op_name, <span class="kw">_</span>)| op_name == name)
<a href=#527 id=527 data-nosnippet>527</a> .map(|(<span class="kw">_</span>, duration)| <span class="kw-2">*</span>duration)
<a href=#528 id=528 data-nosnippet>528</a> .collect()
<a href=#529 id=529 data-nosnippet>529</a> }
<a href=#530 id=530 data-nosnippet>530</a>}
<a href=#531 id=531 data-nosnippet>531</a>
<a href=#532 id=532 data-nosnippet>532</a><span class="kw">impl </span>Default <span class="kw">for </span>AsyncPerformanceMonitor {
<a href=#533 id=533 data-nosnippet>533</a> <span class="kw">fn </span>default() -> <span class="self">Self </span>{
<a href=#534 id=534 data-nosnippet>534</a> <span class="self">Self</span>::new()
<a href=#535 id=535 data-nosnippet>535</a> }
<a href=#536 id=536 data-nosnippet>536</a>}
<a href=#537 id=537 data-nosnippet>537</a>
<a href=#538 id=538 data-nosnippet>538</a><span class="doccomment">/// Traced async operation (non-blocking)
<a href=#539 id=539 data-nosnippet>539</a></span><span class="kw">pub async fn </span>traced_async_operation<F, Fut, T>(_name: <span class="kw-2">&</span>str, f: F) -> T
<a href=#540 id=540 data-nosnippet>540</a><span class="kw">where
<a href=#541 id=541 data-nosnippet>541</a> </span>F: FnOnce() -> Fut,
<a href=#542 id=542 data-nosnippet>542</a> Fut: std::future::Future<Output = T>,
<a href=#543 id=543 data-nosnippet>543</a>{
<a href=#544 id=544 data-nosnippet>544</a> f().<span class="kw">await
<a href=#545 id=545 data-nosnippet>545</a></span>}</code></pre></div></section></main></body></html>