<!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\io\streams.rs`."><title>streams.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 streaming I/O operations, channel-based communication,
<a href=#4 id=4 data-nosnippet>4</a>//! and async file processing with chunked reading and processing.
<a href=#5 id=5 data-nosnippet>5</a>//!
<a href=#6 id=6 data-nosnippet>6</a>//! ## Features
<a href=#7 id=7 data-nosnippet>7</a>//!
<a href=#8 id=8 data-nosnippet>8</a>//! - **Async File Processing**: Streaming file readers with chunked processing
<a href=#9 id=9 data-nosnippet>9</a>//! - **Channel Integration**: Async channel creation and communication
<a href=#10 id=10 data-nosnippet>10</a>//! - **Stream Processing**: Async stream utilities using futures-lite
<a href=#11 id=11 data-nosnippet>11</a>//! - **Memory Efficient**: Chunked reading to handle large files
<a href=#12 id=12 data-nosnippet>12</a>//! - **Progress Tracking**: Optional progress callbacks during processing
<a href=#13 id=13 data-nosnippet>13</a>
<a href=#14 id=14 data-nosnippet>14</a></span><span class="comment">// Standard library imports
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="comment">// External crate imports
<a href=#18 id=18 data-nosnippet>18</a></span><span class="kw">use </span>bytes::Bytes;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>futures_lite::{AsyncReadExt, StreamExt};
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>smol::channel::{Receiver, Sender, unbounded};
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a><span class="doccomment">/// Creates an unbounded channel for asynchronous communication
<a href=#23 id=23 data-nosnippet>23</a>///
<a href=#24 id=24 data-nosnippet>24</a>/// Leverages smol channels for efficient async communication.
<a href=#25 id=25 data-nosnippet>25</a>/// This provides a simple interface while using the proven smol implementation.
<a href=#26 id=26 data-nosnippet>26</a>///
<a href=#27 id=27 data-nosnippet>27</a>/// # Type Parameters
<a href=#28 id=28 data-nosnippet>28</a>/// - `T`: The type of messages to be sent through the channel
<a href=#29 id=29 data-nosnippet>29</a>///
<a href=#30 id=30 data-nosnippet>30</a>/// # Returns
<a href=#31 id=31 data-nosnippet>31</a>/// A tuple `(Sender<T>, Receiver<T>)` for sending and receiving messages
<a href=#32 id=32 data-nosnippet>32</a>///
<a href=#33 id=33 data-nosnippet>33</a>/// # Examples
<a href=#34 id=34 data-nosnippet>34</a>/// ```rust
<a href=#35 id=35 data-nosnippet>35</a>/// use trash_utilities::io::create_channel;
<a href=#36 id=36 data-nosnippet>36</a>/// use smol::channel::Sender;
<a href=#37 id=37 data-nosnippet>37</a>///
<a href=#38 id=38 data-nosnippet>38</a>/// let (tx, rx) = create_channel::<String>();
<a href=#39 id=39 data-nosnippet>39</a>/// // Now you can send and receive messages asynchronously
<a href=#40 id=40 data-nosnippet>40</a>/// ```
<a href=#41 id=41 data-nosnippet>41</a></span><span class="attr">#[must_use]
<a href=#42 id=42 data-nosnippet>42</a></span><span class="kw">pub fn </span>create_channel<T>() -> (Sender<T>, Receiver<T>) {
<a href=#43 id=43 data-nosnippet>43</a> unbounded()
<a href=#44 id=44 data-nosnippet>44</a>}
<a href=#45 id=45 data-nosnippet>45</a>
<a href=#46 id=46 data-nosnippet>46</a><span class="doccomment">/// Async file processor with streaming capabilities
<a href=#47 id=47 data-nosnippet>47</a>///
<a href=#48 id=48 data-nosnippet>48</a>/// Processes files in chunks to handle large files efficiently.
<a href=#49 id=49 data-nosnippet>49</a>/// Supports progress tracking and async processing functions.
<a href=#50 id=50 data-nosnippet>50</a></span><span class="kw">pub struct </span>AsyncFileProcessor {
<a href=#51 id=51 data-nosnippet>51</a> buffer_size: usize,
<a href=#52 id=52 data-nosnippet>52</a> progress_callback: <span class="prelude-ty">Option</span><Box<<span class="kw">dyn </span>Fn(u64) + Send + Sync>>,
<a href=#53 id=53 data-nosnippet>53</a>}
<a href=#54 id=54 data-nosnippet>54</a>
<a href=#55 id=55 data-nosnippet>55</a><span class="kw">impl </span>AsyncFileProcessor {
<a href=#56 id=56 data-nosnippet>56</a> <span class="doccomment">/// Create a new file processor with default buffer size
<a href=#57 id=57 data-nosnippet>57</a> </span><span class="attr">#[must_use]
<a href=#58 id=58 data-nosnippet>58</a> </span><span class="kw">pub fn </span>new() -> <span class="self">Self </span>{
<a href=#59 id=59 data-nosnippet>59</a> <span class="self">Self</span>::with_config(<span class="number">8192</span>, <span class="prelude-val">None</span>)
<a href=#60 id=60 data-nosnippet>60</a> }
<a href=#61 id=61 data-nosnippet>61</a>
<a href=#62 id=62 data-nosnippet>62</a> <span class="doccomment">/// Create a new file processor with custom configuration
<a href=#63 id=63 data-nosnippet>63</a> ///
<a href=#64 id=64 data-nosnippet>64</a> /// # Parameters
<a href=#65 id=65 data-nosnippet>65</a> /// - `buffer_size`: Size of chunks to read at once
<a href=#66 id=66 data-nosnippet>66</a> /// - `progress_callback`: Optional callback for progress updates
<a href=#67 id=67 data-nosnippet>67</a> ///
<a href=#68 id=68 data-nosnippet>68</a> /// # Returns
<a href=#69 id=69 data-nosnippet>69</a> /// Configured `AsyncFileProcessor` instance
<a href=#70 id=70 data-nosnippet>70</a> </span><span class="attr">#[must_use]
<a href=#71 id=71 data-nosnippet>71</a> </span><span class="kw">pub fn </span>with_config(
<a href=#72 id=72 data-nosnippet>72</a> buffer_size: usize,
<a href=#73 id=73 data-nosnippet>73</a> progress_callback: <span class="prelude-ty">Option</span><Box<<span class="kw">dyn </span>Fn(u64) + Send + Sync>>,
<a href=#74 id=74 data-nosnippet>74</a> ) -> <span class="self">Self </span>{
<a href=#75 id=75 data-nosnippet>75</a> <span class="self">Self </span>{
<a href=#76 id=76 data-nosnippet>76</a> buffer_size,
<a href=#77 id=77 data-nosnippet>77</a> progress_callback,
<a href=#78 id=78 data-nosnippet>78</a> }
<a href=#79 id=79 data-nosnippet>79</a> }
<a href=#80 id=80 data-nosnippet>80</a>
<a href=#81 id=81 data-nosnippet>81</a> <span class="doccomment">/// Create a builder for advanced configuration
<a href=#82 id=82 data-nosnippet>82</a> </span><span class="attr">#[must_use]
<a href=#83 id=83 data-nosnippet>83</a> </span><span class="kw">pub fn </span>builder() -> AsyncFileProcessorBuilder {
<a href=#84 id=84 data-nosnippet>84</a> AsyncFileProcessorBuilder::new()
<a href=#85 id=85 data-nosnippet>85</a> }
<a href=#86 id=86 data-nosnippet>86</a>
<a href=#87 id=87 data-nosnippet>87</a> <span class="doccomment">/// Process a file asynchronously with a streaming function
<a href=#88 id=88 data-nosnippet>88</a> ///
<a href=#89 id=89 data-nosnippet>89</a> /// Reads the file in chunks and applies the processor function to each chunk.
<a href=#90 id=90 data-nosnippet>90</a> /// This is memory-efficient for large files.
<a href=#91 id=91 data-nosnippet>91</a> ///
<a href=#92 id=92 data-nosnippet>92</a> /// # Type Parameters
<a href=#93 id=93 data-nosnippet>93</a> /// - `F`: Processor function type
<a href=#94 id=94 data-nosnippet>94</a> /// - `T`: Result type from processing
<a href=#95 id=95 data-nosnippet>95</a> ///
<a href=#96 id=96 data-nosnippet>96</a> /// # Parameters
<a href=#97 id=97 data-nosnippet>97</a> /// - `path`: Path to the file to process
<a href=#98 id=98 data-nosnippet>98</a> /// - `processor`: Function to process each chunk
<a href=#99 id=99 data-nosnippet>99</a> ///
<a href=#100 id=100 data-nosnippet>100</a> /// # Returns
<a href=#101 id=101 data-nosnippet>101</a> /// Vector of results from processing each chunk
<a href=#102 id=102 data-nosnippet>102</a> ///
<a href=#103 id=103 data-nosnippet>103</a> /// # Errors
<a href=#104 id=104 data-nosnippet>104</a> /// Returns error if file reading fails
<a href=#105 id=105 data-nosnippet>105</a> </span><span class="kw">pub async fn </span>process_file<F, T>(
<a href=#106 id=106 data-nosnippet>106</a> <span class="kw-2">&</span><span class="self">self</span>,
<a href=#107 id=107 data-nosnippet>107</a> path: <span class="kw-2">&</span>str,
<a href=#108 id=108 data-nosnippet>108</a> processor: F,
<a href=#109 id=109 data-nosnippet>109</a> ) -> <span class="prelude-ty">Result</span><Vec<T>, std::io::Error>
<a href=#110 id=110 data-nosnippet>110</a> <span class="kw">where
<a href=#111 id=111 data-nosnippet>111</a> </span>F: Fn(Bytes) -> T + Send + Sync,
<a href=#112 id=112 data-nosnippet>112</a> T: Send + <span class="lifetime">'static</span>,
<a href=#113 id=113 data-nosnippet>113</a> {
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">let </span><span class="kw-2">mut </span>file = smol::fs::File::open(path).<span class="kw">await</span><span class="question-mark">?</span>;
<a href=#115 id=115 data-nosnippet>115</a> <span class="kw">let </span><span class="kw-2">mut </span>results = Vec::new();
<a href=#116 id=116 data-nosnippet>116</a> <span class="kw">let </span><span class="kw-2">mut </span>buffer = <span class="macro">vec!</span>[<span class="number">0u8</span>; <span class="self">self</span>.buffer_size];
<a href=#117 id=117 data-nosnippet>117</a> <span class="kw">let </span><span class="kw-2">mut </span>bytes_processed = <span class="number">0u64</span>;
<a href=#118 id=118 data-nosnippet>118</a>
<a href=#119 id=119 data-nosnippet>119</a> <span class="kw">loop </span>{
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">let </span>bytes_read = file.read(<span class="kw-2">&mut </span>buffer).<span class="kw">await</span><span class="question-mark">?</span>;
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">if </span>bytes_read == <span class="number">0 </span>{
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">break</span>;
<a href=#123 id=123 data-nosnippet>123</a> }
<a href=#124 id=124 data-nosnippet>124</a>
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">let </span>chunk = Bytes::copy_from_slice(<span class="kw-2">&</span>buffer[..bytes_read]);
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">let </span>result = processor(chunk);
<a href=#127 id=127 data-nosnippet>127</a> results.push(result);
<a href=#128 id=128 data-nosnippet>128</a>
<a href=#129 id=129 data-nosnippet>129</a> bytes_processed += bytes_read <span class="kw">as </span>u64;
<a href=#130 id=130 data-nosnippet>130</a>
<a href=#131 id=131 data-nosnippet>131</a> <span class="comment">// Update progress if callback provided
<a href=#132 id=132 data-nosnippet>132</a> </span><span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">ref </span>callback) = <span class="self">self</span>.progress_callback {
<a href=#133 id=133 data-nosnippet>133</a> callback(bytes_processed);
<a href=#134 id=134 data-nosnippet>134</a> }
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a>
<a href=#137 id=137 data-nosnippet>137</a> <span class="prelude-val">Ok</span>(results)
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a>
<a href=#140 id=140 data-nosnippet>140</a> <span class="doccomment">/// Process a file with async processor function
<a href=#141 id=141 data-nosnippet>141</a> ///
<a href=#142 id=142 data-nosnippet>142</a> /// Similar to `process_file` but allows async processing functions.
<a href=#143 id=143 data-nosnippet>143</a> ///
<a href=#144 id=144 data-nosnippet>144</a> /// # Type Parameters
<a href=#145 id=145 data-nosnippet>145</a> /// - `F`: Async processor function type
<a href=#146 id=146 data-nosnippet>146</a> /// - `T`: Result type from processing
<a href=#147 id=147 data-nosnippet>147</a> ///
<a href=#148 id=148 data-nosnippet>148</a> /// # Parameters
<a href=#149 id=149 data-nosnippet>149</a> /// - `path`: Path to the file to process
<a href=#150 id=150 data-nosnippet>150</a> /// - `processor`: Async function to process each chunk
<a href=#151 id=151 data-nosnippet>151</a> ///
<a href=#152 id=152 data-nosnippet>152</a> /// # Returns
<a href=#153 id=153 data-nosnippet>153</a> /// Vector of results from processing each chunk
<a href=#154 id=154 data-nosnippet>154</a> ///
<a href=#155 id=155 data-nosnippet>155</a> /// # Errors
<a href=#156 id=156 data-nosnippet>156</a> /// Returns error if file reading or processing fails
<a href=#157 id=157 data-nosnippet>157</a> </span><span class="kw">pub async fn </span>process_file_async<F, Fut, T>(
<a href=#158 id=158 data-nosnippet>158</a> <span class="kw-2">&</span><span class="self">self</span>,
<a href=#159 id=159 data-nosnippet>159</a> path: <span class="kw-2">&</span>str,
<a href=#160 id=160 data-nosnippet>160</a> processor: F,
<a href=#161 id=161 data-nosnippet>161</a> ) -> <span class="prelude-ty">Result</span><Vec<T>, std::io::Error>
<a href=#162 id=162 data-nosnippet>162</a> <span class="kw">where
<a href=#163 id=163 data-nosnippet>163</a> </span>F: Fn(Bytes) -> Fut + Send + Sync,
<a href=#164 id=164 data-nosnippet>164</a> Fut: std::future::Future<Output = <span class="prelude-ty">Result</span><T, std::io::Error>> + Send,
<a href=#165 id=165 data-nosnippet>165</a> T: Send + <span class="lifetime">'static</span>,
<a href=#166 id=166 data-nosnippet>166</a> {
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">let </span><span class="kw-2">mut </span>file = smol::fs::File::open(path).<span class="kw">await</span><span class="question-mark">?</span>;
<a href=#168 id=168 data-nosnippet>168</a> <span class="kw">let </span><span class="kw-2">mut </span>results = Vec::new();
<a href=#169 id=169 data-nosnippet>169</a> <span class="kw">let </span><span class="kw-2">mut </span>buffer = <span class="macro">vec!</span>[<span class="number">0u8</span>; <span class="self">self</span>.buffer_size];
<a href=#170 id=170 data-nosnippet>170</a> <span class="kw">let </span><span class="kw-2">mut </span>bytes_processed = <span class="number">0u64</span>;
<a href=#171 id=171 data-nosnippet>171</a>
<a href=#172 id=172 data-nosnippet>172</a> <span class="kw">loop </span>{
<a href=#173 id=173 data-nosnippet>173</a> <span class="kw">let </span>bytes_read = file.read(<span class="kw-2">&mut </span>buffer).<span class="kw">await</span><span class="question-mark">?</span>;
<a href=#174 id=174 data-nosnippet>174</a> <span class="kw">if </span>bytes_read == <span class="number">0 </span>{
<a href=#175 id=175 data-nosnippet>175</a> <span class="kw">break</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> <span class="kw">let </span>chunk = Bytes::copy_from_slice(<span class="kw-2">&</span>buffer[..bytes_read]);
<a href=#179 id=179 data-nosnippet>179</a> <span class="kw">let </span>result = processor(chunk).<span class="kw">await</span><span class="question-mark">?</span>;
<a href=#180 id=180 data-nosnippet>180</a> results.push(result);
<a href=#181 id=181 data-nosnippet>181</a>
<a href=#182 id=182 data-nosnippet>182</a> bytes_processed += bytes_read <span class="kw">as </span>u64;
<a href=#183 id=183 data-nosnippet>183</a>
<a href=#184 id=184 data-nosnippet>184</a> <span class="comment">// Update progress if callback provided
<a href=#185 id=185 data-nosnippet>185</a> </span><span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">ref </span>callback) = <span class="self">self</span>.progress_callback {
<a href=#186 id=186 data-nosnippet>186</a> callback(bytes_processed);
<a href=#187 id=187 data-nosnippet>187</a> }
<a href=#188 id=188 data-nosnippet>188</a> }
<a href=#189 id=189 data-nosnippet>189</a>
<a href=#190 id=190 data-nosnippet>190</a> <span class="prelude-val">Ok</span>(results)
<a href=#191 id=191 data-nosnippet>191</a> }
<a href=#192 id=192 data-nosnippet>192</a>}
<a href=#193 id=193 data-nosnippet>193</a>
<a href=#194 id=194 data-nosnippet>194</a><span class="kw">impl </span>Default <span class="kw">for </span>AsyncFileProcessor {
<a href=#195 id=195 data-nosnippet>195</a> <span class="kw">fn </span>default() -> <span class="self">Self </span>{
<a href=#196 id=196 data-nosnippet>196</a> <span class="self">Self</span>::new()
<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="doccomment">/// Builder for `AsyncFileProcessor` with ergonomic configuration
<a href=#201 id=201 data-nosnippet>201</a></span><span class="kw">pub struct </span>AsyncFileProcessorBuilder {
<a href=#202 id=202 data-nosnippet>202</a> buffer_size: usize,
<a href=#203 id=203 data-nosnippet>203</a> progress_callback: <span class="prelude-ty">Option</span><Box<<span class="kw">dyn </span>Fn(u64) + Send + Sync>>,
<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="kw">impl </span>AsyncFileProcessorBuilder {
<a href=#207 id=207 data-nosnippet>207</a> <span class="doccomment">/// Create a new builder with defaults
<a href=#208 id=208 data-nosnippet>208</a> </span><span class="attr">#[must_use]
<a href=#209 id=209 data-nosnippet>209</a> </span><span class="kw">pub fn </span>new() -> <span class="self">Self </span>{
<a href=#210 id=210 data-nosnippet>210</a> <span class="self">Self </span>{
<a href=#211 id=211 data-nosnippet>211</a> buffer_size: <span class="number">8192</span>,
<a href=#212 id=212 data-nosnippet>212</a> progress_callback: <span class="prelude-val">None</span>,
<a href=#213 id=213 data-nosnippet>213</a> }
<a href=#214 id=214 data-nosnippet>214</a> }
<a href=#215 id=215 data-nosnippet>215</a>
<a href=#216 id=216 data-nosnippet>216</a> <span class="doccomment">/// Set the buffer size for reading chunks
<a href=#217 id=217 data-nosnippet>217</a> </span><span class="attr">#[must_use]
<a href=#218 id=218 data-nosnippet>218</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=#219 id=219 data-nosnippet>219</a> <span class="self">self</span>.buffer_size = size;
<a href=#220 id=220 data-nosnippet>220</a> <span class="self">self
<a href=#221 id=221 data-nosnippet>221</a> </span>}
<a href=#222 id=222 data-nosnippet>222</a>
<a href=#223 id=223 data-nosnippet>223</a> <span class="doccomment">/// Set a progress callback function
<a href=#224 id=224 data-nosnippet>224</a> </span><span class="attr">#[must_use]
<a href=#225 id=225 data-nosnippet>225</a> </span><span class="kw">pub fn </span>progress_callback<F>(<span class="kw-2">mut </span><span class="self">self</span>, callback: F) -> <span class="self">Self
<a href=#226 id=226 data-nosnippet>226</a> </span><span class="kw">where
<a href=#227 id=227 data-nosnippet>227</a> </span>F: Fn(u64) + Send + Sync + <span class="lifetime">'static</span>,
<a href=#228 id=228 data-nosnippet>228</a> {
<a href=#229 id=229 data-nosnippet>229</a> <span class="self">self</span>.progress_callback = <span class="prelude-val">Some</span>(Box::new(callback));
<a href=#230 id=230 data-nosnippet>230</a> <span class="self">self
<a href=#231 id=231 data-nosnippet>231</a> </span>}
<a href=#232 id=232 data-nosnippet>232</a>
<a href=#233 id=233 data-nosnippet>233</a> <span class="doccomment">/// Build the `AsyncFileProcessor`
<a href=#234 id=234 data-nosnippet>234</a> </span><span class="attr">#[must_use]
<a href=#235 id=235 data-nosnippet>235</a> </span><span class="kw">pub fn </span>build(<span class="self">self</span>) -> AsyncFileProcessor {
<a href=#236 id=236 data-nosnippet>236</a> AsyncFileProcessor {
<a href=#237 id=237 data-nosnippet>237</a> buffer_size: <span class="self">self</span>.buffer_size,
<a href=#238 id=238 data-nosnippet>238</a> progress_callback: <span class="self">self</span>.progress_callback,
<a href=#239 id=239 data-nosnippet>239</a> }
<a href=#240 id=240 data-nosnippet>240</a> }
<a href=#241 id=241 data-nosnippet>241</a>}
<a href=#242 id=242 data-nosnippet>242</a>
<a href=#243 id=243 data-nosnippet>243</a><span class="kw">impl </span>Default <span class="kw">for </span>AsyncFileProcessorBuilder {
<a href=#244 id=244 data-nosnippet>244</a> <span class="kw">fn </span>default() -> <span class="self">Self </span>{
<a href=#245 id=245 data-nosnippet>245</a> <span class="self">Self</span>::new()
<a href=#246 id=246 data-nosnippet>246</a> }
<a href=#247 id=247 data-nosnippet>247</a>}
<a href=#248 id=248 data-nosnippet>248</a>
<a href=#249 id=249 data-nosnippet>249</a><span class="doccomment">/// Asynchronously process a file using a provided function
<a href=#250 id=250 data-nosnippet>250</a>///
<a href=#251 id=251 data-nosnippet>251</a>/// Enhanced version that leverages async I/O utilities and provides
<a href=#252 id=252 data-nosnippet>252</a>/// better error handling than the original.
<a href=#253 id=253 data-nosnippet>253</a>///
<a href=#254 id=254 data-nosnippet>254</a>/// # Type Parameters
<a href=#255 id=255 data-nosnippet>255</a>/// - `F`: The type of the processor function
<a href=#256 id=256 data-nosnippet>256</a>///
<a href=#257 id=257 data-nosnippet>257</a>/// # Parameters
<a href=#258 id=258 data-nosnippet>258</a>/// - `path`: The path to the file to read and process
<a href=#259 id=259 data-nosnippet>259</a>/// - `processor`: A function that takes the file content and performs some operation
<a href=#260 id=260 data-nosnippet>260</a>///
<a href=#261 id=261 data-nosnippet>261</a>/// # Returns
<a href=#262 id=262 data-nosnippet>262</a>/// - `Ok(())` if the file was read and processed successfully
<a href=#263 id=263 data-nosnippet>263</a>/// - `Err(std::io::Error)` if reading the file failed
<a href=#264 id=264 data-nosnippet>264</a>///
<a href=#265 id=265 data-nosnippet>265</a>/// # Errors
<a href=#266 id=266 data-nosnippet>266</a>/// Returns an error if the file cannot be read.
<a href=#267 id=267 data-nosnippet>267</a>///
<a href=#268 id=268 data-nosnippet>268</a>/// # Examples
<a href=#269 id=269 data-nosnippet>269</a>/// ```rust,no_run
<a href=#270 id=270 data-nosnippet>270</a>/// use trash_utilities::io::process_file_async;
<a href=#271 id=271 data-nosnippet>271</a>///
<a href=#272 id=272 data-nosnippet>272</a>/// #[tokio::main]
<a href=#273 id=273 data-nosnippet>273</a>/// async fn main() -> std::io::Result<()> {
<a href=#274 id=274 data-nosnippet>274</a>/// process_file_async("data.txt", |content| {
<a href=#275 id=275 data-nosnippet>275</a>/// println!("File length: {}", content.len());
<a href=#276 id=276 data-nosnippet>276</a>/// }).await?;
<a href=#277 id=277 data-nosnippet>277</a>/// Ok(())
<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></span><span class="kw">pub async fn </span>process_file_async<F>(path: <span class="kw-2">&</span>str, processor: F) -> <span class="prelude-ty">Result</span><(), std::io::Error>
<a href=#281 id=281 data-nosnippet>281</a><span class="kw">where
<a href=#282 id=282 data-nosnippet>282</a> </span>F: Fn(String) + Send + Sync + <span class="lifetime">'static</span>,
<a href=#283 id=283 data-nosnippet>283</a>{
<a href=#284 id=284 data-nosnippet>284</a> <span class="kw">let </span>content = <span class="kw">crate</span>::io::utils::read_file_async(path).<span class="kw">await</span><span class="question-mark">?</span>;
<a href=#285 id=285 data-nosnippet>285</a> processor(content);
<a href=#286 id=286 data-nosnippet>286</a> <span class="prelude-val">Ok</span>(())
<a href=#287 id=287 data-nosnippet>287</a>}
<a href=#288 id=288 data-nosnippet>288</a>
<a href=#289 id=289 data-nosnippet>289</a><span class="doccomment">/// Async stream utilities for processing data streams
<a href=#290 id=290 data-nosnippet>290</a>///
<a href=#291 id=291 data-nosnippet>291</a>/// Provides utilities for working with async streams, including
<a href=#292 id=292 data-nosnippet>292</a>/// transformation, filtering, and collection operations.
<a href=#293 id=293 data-nosnippet>293</a></span><span class="kw">pub struct </span>AsyncStreamUtils;
<a href=#294 id=294 data-nosnippet>294</a>
<a href=#295 id=295 data-nosnippet>295</a><span class="kw">impl </span>AsyncStreamUtils {
<a href=#296 id=296 data-nosnippet>296</a> <span class="doccomment">/// Process an async stream with a transformation function
<a href=#297 id=297 data-nosnippet>297</a> ///
<a href=#298 id=298 data-nosnippet>298</a> /// # Type Parameters
<a href=#299 id=299 data-nosnippet>299</a> /// - `S`: Stream type
<a href=#300 id=300 data-nosnippet>300</a> /// - `F`: Transformation function type
<a href=#301 id=301 data-nosnippet>301</a> /// - `T`: Input item type
<a href=#302 id=302 data-nosnippet>302</a> /// - `U`: Output item type
<a href=#303 id=303 data-nosnippet>303</a> ///
<a href=#304 id=304 data-nosnippet>304</a> /// # Parameters
<a href=#305 id=305 data-nosnippet>305</a> /// - `stream`: Input async stream
<a href=#306 id=306 data-nosnippet>306</a> /// - `transformer`: Function to transform each item
<a href=#307 id=307 data-nosnippet>307</a> ///
<a href=#308 id=308 data-nosnippet>308</a> /// # Returns
<a href=#309 id=309 data-nosnippet>309</a> /// Vector of transformed results
<a href=#310 id=310 data-nosnippet>310</a> </span><span class="kw">pub async fn </span>map_stream<S, F, T, U>(<span class="kw-2">mut </span>stream: S, transformer: F) -> Vec<U>
<a href=#311 id=311 data-nosnippet>311</a> <span class="kw">where
<a href=#312 id=312 data-nosnippet>312</a> </span>S: futures_lite::Stream<Item = T> + Unpin,
<a href=#313 id=313 data-nosnippet>313</a> F: Fn(T) -> U,
<a href=#314 id=314 data-nosnippet>314</a> U: Send + <span class="lifetime">'static</span>,
<a href=#315 id=315 data-nosnippet>315</a> {
<a href=#316 id=316 data-nosnippet>316</a> <span class="kw">let </span><span class="kw-2">mut </span>results = Vec::new();
<a href=#317 id=317 data-nosnippet>317</a>
<a href=#318 id=318 data-nosnippet>318</a> <span class="kw">while let </span><span class="prelude-val">Some</span>(item) = stream.next().<span class="kw">await </span>{
<a href=#319 id=319 data-nosnippet>319</a> <span class="kw">let </span>transformed_item = transformer(item);
<a href=#320 id=320 data-nosnippet>320</a> results.push(transformed_item);
<a href=#321 id=321 data-nosnippet>321</a> }
<a href=#322 id=322 data-nosnippet>322</a>
<a href=#323 id=323 data-nosnippet>323</a> results
<a href=#324 id=324 data-nosnippet>324</a> }
<a href=#325 id=325 data-nosnippet>325</a>
<a href=#326 id=326 data-nosnippet>326</a> <span class="doccomment">/// Filter an async stream based on a predicate
<a href=#327 id=327 data-nosnippet>327</a> ///
<a href=#328 id=328 data-nosnippet>328</a> /// # Type Parameters
<a href=#329 id=329 data-nosnippet>329</a> /// - `S`: Stream type
<a href=#330 id=330 data-nosnippet>330</a> /// - `F`: Predicate function type
<a href=#331 id=331 data-nosnippet>331</a> /// - `T`: Item type
<a href=#332 id=332 data-nosnippet>332</a> ///
<a href=#333 id=333 data-nosnippet>333</a> /// # Parameters
<a href=#334 id=334 data-nosnippet>334</a> /// - `stream`: Input async stream
<a href=#335 id=335 data-nosnippet>335</a> /// - `predicate`: Function that returns true for items to keep
<a href=#336 id=336 data-nosnippet>336</a> ///
<a href=#337 id=337 data-nosnippet>337</a> /// # Returns
<a href=#338 id=338 data-nosnippet>338</a> /// Vector of filtered results
<a href=#339 id=339 data-nosnippet>339</a> </span><span class="kw">pub async fn </span>filter_stream<S, F, T>(<span class="kw-2">mut </span>stream: S, predicate: F) -> Vec<T>
<a href=#340 id=340 data-nosnippet>340</a> <span class="kw">where
<a href=#341 id=341 data-nosnippet>341</a> </span>S: futures_lite::Stream<Item = T> + Unpin,
<a href=#342 id=342 data-nosnippet>342</a> F: Fn(<span class="kw-2">&</span>T) -> bool,
<a href=#343 id=343 data-nosnippet>343</a> T: Send + <span class="lifetime">'static</span>,
<a href=#344 id=344 data-nosnippet>344</a> {
<a href=#345 id=345 data-nosnippet>345</a> <span class="kw">let </span><span class="kw-2">mut </span>results = Vec::new();
<a href=#346 id=346 data-nosnippet>346</a>
<a href=#347 id=347 data-nosnippet>347</a> <span class="kw">while let </span><span class="prelude-val">Some</span>(item) = stream.next().<span class="kw">await </span>{
<a href=#348 id=348 data-nosnippet>348</a> <span class="kw">if </span>predicate(<span class="kw-2">&</span>item) {
<a href=#349 id=349 data-nosnippet>349</a> results.push(item);
<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>
<a href=#353 id=353 data-nosnippet>353</a> results
<a href=#354 id=354 data-nosnippet>354</a> }
<a href=#355 id=355 data-nosnippet>355</a>
<a href=#356 id=356 data-nosnippet>356</a> <span class="doccomment">/// Collect an async stream into a vector
<a href=#357 id=357 data-nosnippet>357</a> ///
<a href=#358 id=358 data-nosnippet>358</a> /// # Type Parameters
<a href=#359 id=359 data-nosnippet>359</a> /// - `S`: Stream type
<a href=#360 id=360 data-nosnippet>360</a> /// - `T`: Item type
<a href=#361 id=361 data-nosnippet>361</a> ///
<a href=#362 id=362 data-nosnippet>362</a> /// # Parameters
<a href=#363 id=363 data-nosnippet>363</a> /// - `stream`: Input async stream
<a href=#364 id=364 data-nosnippet>364</a> ///
<a href=#365 id=365 data-nosnippet>365</a> /// # Returns
<a href=#366 id=366 data-nosnippet>366</a> /// Vector containing all stream items
<a href=#367 id=367 data-nosnippet>367</a> </span><span class="kw">pub async fn </span>collect_stream<S, T>(<span class="kw-2">mut </span>stream: S) -> Vec<T>
<a href=#368 id=368 data-nosnippet>368</a> <span class="kw">where
<a href=#369 id=369 data-nosnippet>369</a> </span>S: futures_lite::Stream<Item = T> + Unpin,
<a href=#370 id=370 data-nosnippet>370</a> T: Send + <span class="lifetime">'static</span>,
<a href=#371 id=371 data-nosnippet>371</a> {
<a href=#372 id=372 data-nosnippet>372</a> <span class="kw">let </span><span class="kw-2">mut </span>results = Vec::new();
<a href=#373 id=373 data-nosnippet>373</a>
<a href=#374 id=374 data-nosnippet>374</a> <span class="kw">while let </span><span class="prelude-val">Some</span>(item) = stream.next().<span class="kw">await </span>{
<a href=#375 id=375 data-nosnippet>375</a> results.push(item);
<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> results
<a href=#379 id=379 data-nosnippet>379</a> }
<a href=#380 id=380 data-nosnippet>380</a>}
<a href=#381 id=381 data-nosnippet>381</a>
<a href=#382 id=382 data-nosnippet>382</a><span class="doccomment">/// Channel-based stream processor
<a href=#383 id=383 data-nosnippet>383</a>///
<a href=#384 id=384 data-nosnippet>384</a>/// Processes data through channels with async streaming capabilities.
<a href=#385 id=385 data-nosnippet>385</a>/// Useful for producer-consumer patterns and data pipeline processing.
<a href=#386 id=386 data-nosnippet>386</a></span><span class="kw">pub struct </span>ChannelStreamProcessor<T> {
<a href=#387 id=387 data-nosnippet>387</a> sender: Sender<T>,
<a href=#388 id=388 data-nosnippet>388</a> receiver: Receiver<T>,
<a href=#389 id=389 data-nosnippet>389</a> processor: Arc<<span class="kw">dyn </span>Fn(T) -> T + Send + Sync>,
<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="kw">impl</span><T> ChannelStreamProcessor<T>
<a href=#393 id=393 data-nosnippet>393</a><span class="kw">where
<a href=#394 id=394 data-nosnippet>394</a> </span>T: Send + <span class="lifetime">'static </span>+ Clone,
<a href=#395 id=395 data-nosnippet>395</a>{
<a href=#396 id=396 data-nosnippet>396</a> <span class="doccomment">/// Create a new channel stream processor
<a href=#397 id=397 data-nosnippet>397</a> ///
<a href=#398 id=398 data-nosnippet>398</a> /// # Parameters
<a href=#399 id=399 data-nosnippet>399</a> /// - `processor`: Function to process each item
<a href=#400 id=400 data-nosnippet>400</a> ///
<a href=#401 id=401 data-nosnippet>401</a> /// # Returns
<a href=#402 id=402 data-nosnippet>402</a> /// New `ChannelStreamProcessor` instance
<a href=#403 id=403 data-nosnippet>403</a> </span><span class="attr">#[must_use]
<a href=#404 id=404 data-nosnippet>404</a> </span><span class="kw">pub fn </span>new<F>(processor: F) -> <span class="self">Self
<a href=#405 id=405 data-nosnippet>405</a> </span><span class="kw">where
<a href=#406 id=406 data-nosnippet>406</a> </span>F: Fn(T) -> T + Send + Sync + <span class="lifetime">'static</span>,
<a href=#407 id=407 data-nosnippet>407</a> {
<a href=#408 id=408 data-nosnippet>408</a> <span class="kw">let </span>(sender, receiver) = create_channel();
<a href=#409 id=409 data-nosnippet>409</a> <span class="self">Self </span>{
<a href=#410 id=410 data-nosnippet>410</a> sender,
<a href=#411 id=411 data-nosnippet>411</a> receiver,
<a href=#412 id=412 data-nosnippet>412</a> processor: Arc::new(processor),
<a href=#413 id=413 data-nosnippet>413</a> }
<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="doccomment">/// Send data to be processed
<a href=#417 id=417 data-nosnippet>417</a> ///
<a href=#418 id=418 data-nosnippet>418</a> /// # Parameters
<a href=#419 id=419 data-nosnippet>419</a> /// - `data`: Data to send for processing
<a href=#420 id=420 data-nosnippet>420</a> ///
<a href=#421 id=421 data-nosnippet>421</a> /// # Returns
<a href=#422 id=422 data-nosnippet>422</a> /// Success or channel error
<a href=#423 id=423 data-nosnippet>423</a> ///
<a href=#424 id=424 data-nosnippet>424</a> /// # Errors
<a href=#425 id=425 data-nosnippet>425</a> /// Returns an error if the channel is closed or full.
<a href=#426 id=426 data-nosnippet>426</a> </span><span class="kw">pub async fn </span>send(<span class="kw-2">&</span><span class="self">self</span>, data: T) -> <span class="prelude-ty">Result</span><(), smol::channel::SendError<T>> {
<a href=#427 id=427 data-nosnippet>427</a> <span class="self">self</span>.sender.send(data).<span class="kw">await
<a href=#428 id=428 data-nosnippet>428</a> </span>}
<a href=#429 id=429 data-nosnippet>429</a>
<a href=#430 id=430 data-nosnippet>430</a> <span class="doccomment">/// Receive processed data
<a href=#431 id=431 data-nosnippet>431</a> ///
<a href=#432 id=432 data-nosnippet>432</a> /// # Returns
<a href=#433 id=433 data-nosnippet>433</a> /// Processed data or channel error
<a href=#434 id=434 data-nosnippet>434</a> ///
<a href=#435 id=435 data-nosnippet>435</a> /// # Errors
<a href=#436 id=436 data-nosnippet>436</a> /// Returns an error if the channel is closed or empty.
<a href=#437 id=437 data-nosnippet>437</a> </span><span class="kw">pub async fn </span>receive(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><T, smol::channel::RecvError> {
<a href=#438 id=438 data-nosnippet>438</a> <span class="kw">let </span>data = <span class="self">self</span>.receiver.recv().<span class="kw">await</span><span class="question-mark">?</span>;
<a href=#439 id=439 data-nosnippet>439</a> <span class="prelude-val">Ok</span>((<span class="self">self</span>.processor)(data))
<a href=#440 id=440 data-nosnippet>440</a> }
<a href=#441 id=441 data-nosnippet>441</a>
<a href=#442 id=442 data-nosnippet>442</a> <span class="doccomment">/// Start processing in the background
<a href=#443 id=443 data-nosnippet>443</a> ///
<a href=#444 id=444 data-nosnippet>444</a> /// Spawns a background task that continuously processes data from the channel.
<a href=#445 id=445 data-nosnippet>445</a> </span><span class="kw">pub fn </span>start_background_processing(<span class="kw-2">&</span><span class="self">self</span>) {
<a href=#446 id=446 data-nosnippet>446</a> <span class="kw">let </span>receiver = <span class="self">self</span>.receiver.clone();
<a href=#447 id=447 data-nosnippet>447</a> <span class="kw">let </span>processor = <span class="self">self</span>.processor.clone();
<a href=#448 id=448 data-nosnippet>448</a>
<a href=#449 id=449 data-nosnippet>449</a> smol::spawn(<span class="kw">async move </span>{
<a href=#450 id=450 data-nosnippet>450</a> <span class="kw">while let </span><span class="prelude-val">Ok</span>(data) = receiver.recv().<span class="kw">await </span>{
<a href=#451 id=451 data-nosnippet>451</a> <span class="kw">let </span>processed = processor(data);
<a href=#452 id=452 data-nosnippet>452</a> <span class="comment">// In a real implementation, you might send processed data to another channel
<a href=#453 id=453 data-nosnippet>453</a> // For now, we just process and discard (or log)
<a href=#454 id=454 data-nosnippet>454</a> </span>drop(processed);
<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> .detach();
<a href=#458 id=458 data-nosnippet>458</a> }
<a href=#459 id=459 data-nosnippet>459</a>}
<a href=#460 id=460 data-nosnippet>460</a>
<a href=#461 id=461 data-nosnippet>461</a><span class="doccomment">/// Utility for creating buffered async readers
<a href=#462 id=462 data-nosnippet>462</a>///
<a href=#463 id=463 data-nosnippet>463</a>/// Provides buffered reading capabilities for async streams.
<a href=#464 id=464 data-nosnippet>464</a>/// Useful for efficient reading of large data streams.
<a href=#465 id=465 data-nosnippet>465</a></span><span class="kw">pub struct </span>BufferedAsyncReader<R> {
<a href=#466 id=466 data-nosnippet>466</a> reader: R,
<a href=#467 id=467 data-nosnippet>467</a> buffer: Vec<u8>,
<a href=#468 id=468 data-nosnippet>468</a> buffer_size: usize,
<a href=#469 id=469 data-nosnippet>469</a> position: usize,
<a href=#470 id=470 data-nosnippet>470</a> limit: usize,
<a href=#471 id=471 data-nosnippet>471</a>}
<a href=#472 id=472 data-nosnippet>472</a>
<a href=#473 id=473 data-nosnippet>473</a><span class="kw">impl</span><R> BufferedAsyncReader<R>
<a href=#474 id=474 data-nosnippet>474</a><span class="kw">where
<a href=#475 id=475 data-nosnippet>475</a> </span>R: AsyncReadExt + Unpin,
<a href=#476 id=476 data-nosnippet>476</a>{
<a href=#477 id=477 data-nosnippet>477</a> <span class="doccomment">/// Create a new buffered async reader
<a href=#478 id=478 data-nosnippet>478</a> ///
<a href=#479 id=479 data-nosnippet>479</a> /// # Parameters
<a href=#480 id=480 data-nosnippet>480</a> /// - `reader`: The underlying async reader
<a href=#481 id=481 data-nosnippet>481</a> /// - `buffer_size`: Size of the read buffer
<a href=#482 id=482 data-nosnippet>482</a> ///
<a href=#483 id=483 data-nosnippet>483</a> /// # Returns
<a href=#484 id=484 data-nosnippet>484</a> /// New `BufferedAsyncReader` instance
<a href=#485 id=485 data-nosnippet>485</a> </span><span class="attr">#[must_use]
<a href=#486 id=486 data-nosnippet>486</a> </span><span class="kw">pub fn </span>new(reader: R, buffer_size: usize) -> <span class="self">Self </span>{
<a href=#487 id=487 data-nosnippet>487</a> <span class="self">Self </span>{
<a href=#488 id=488 data-nosnippet>488</a> reader,
<a href=#489 id=489 data-nosnippet>489</a> buffer: <span class="macro">vec!</span>[<span class="number">0u8</span>; buffer_size],
<a href=#490 id=490 data-nosnippet>490</a> buffer_size,
<a href=#491 id=491 data-nosnippet>491</a> position: <span class="number">0</span>,
<a href=#492 id=492 data-nosnippet>492</a> limit: <span class="number">0</span>,
<a href=#493 id=493 data-nosnippet>493</a> }
<a href=#494 id=494 data-nosnippet>494</a> }
<a href=#495 id=495 data-nosnippet>495</a>
<a href=#496 id=496 data-nosnippet>496</a> <span class="doccomment">/// Read data into the buffer
<a href=#497 id=497 data-nosnippet>497</a> ///
<a href=#498 id=498 data-nosnippet>498</a> /// # Returns
<a href=#499 id=499 data-nosnippet>499</a> /// Slice of available data or error
<a href=#500 id=500 data-nosnippet>500</a> ///
<a href=#501 id=501 data-nosnippet>501</a> /// # Errors
<a href=#502 id=502 data-nosnippet>502</a> /// Returns error if reading from the underlying reader fails
<a href=#503 id=503 data-nosnippet>503</a> </span><span class="kw">pub async fn </span>read_buffer(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span>[u8], std::io::Error> {
<a href=#504 id=504 data-nosnippet>504</a> <span class="kw">if </span><span class="self">self</span>.position >= <span class="self">self</span>.limit {
<a href=#505 id=505 data-nosnippet>505</a> <span class="self">self</span>.limit = <span class="self">self</span>.reader.read(<span class="kw-2">&mut </span><span class="self">self</span>.buffer).<span class="kw">await</span><span class="question-mark">?</span>;
<a href=#506 id=506 data-nosnippet>506</a> <span class="self">self</span>.position = <span class="number">0</span>;
<a href=#507 id=507 data-nosnippet>507</a>
<a href=#508 id=508 data-nosnippet>508</a> <span class="kw">if </span><span class="self">self</span>.limit == <span class="number">0 </span>{
<a href=#509 id=509 data-nosnippet>509</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="kw-2">&</span><span class="self">self</span>.buffer[<span class="number">0</span>..<span class="number">0</span>]);
<a href=#510 id=510 data-nosnippet>510</a> }
<a href=#511 id=511 data-nosnippet>511</a> }
<a href=#512 id=512 data-nosnippet>512</a>
<a href=#513 id=513 data-nosnippet>513</a> <span class="prelude-val">Ok</span>(<span class="kw-2">&</span><span class="self">self</span>.buffer[<span class="self">self</span>.position..<span class="self">self</span>.limit])
<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">/// Consume bytes from the buffer
<a href=#517 id=517 data-nosnippet>517</a> ///
<a href=#518 id=518 data-nosnippet>518</a> /// # Parameters
<a href=#519 id=519 data-nosnippet>519</a> /// - `amount`: Number of bytes to consume
<a href=#520 id=520 data-nosnippet>520</a> </span><span class="kw">pub fn </span>consume(<span class="kw-2">&mut </span><span class="self">self</span>, amount: usize) {
<a href=#521 id=521 data-nosnippet>521</a> <span class="self">self</span>.position = (<span class="self">self</span>.position + amount).min(<span class="self">self</span>.limit);
<a href=#522 id=522 data-nosnippet>522</a> }
<a href=#523 id=523 data-nosnippet>523</a>
<a href=#524 id=524 data-nosnippet>524</a> <span class="doccomment">/// Get the buffer size
<a href=#525 id=525 data-nosnippet>525</a> ///
<a href=#526 id=526 data-nosnippet>526</a> /// # Returns
<a href=#527 id=527 data-nosnippet>527</a> /// The size of the internal buffer
<a href=#528 id=528 data-nosnippet>528</a> </span><span class="attr">#[must_use]
<a href=#529 id=529 data-nosnippet>529</a> </span><span class="kw">pub fn </span>buffer_size(<span class="kw-2">&</span><span class="self">self</span>) -> usize {
<a href=#530 id=530 data-nosnippet>530</a> <span class="self">self</span>.buffer_size
<a href=#531 id=531 data-nosnippet>531</a> }
<a href=#532 id=532 data-nosnippet>532</a>}</code></pre></div></section></main></body></html>