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POFile Search in C#
 

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    <p>I have made this code:</p> <pre><code>string[] paths = GetFiles(dir).ToArray(); int numberOfFiles = paths.Length; int i = 0; while (i &lt; numberOfFiles - 1) { scanfile(paths[i]); i++; } </code></pre> <p>And for the GetFiles:</p> <pre><code>static IEnumerable&lt;string&gt; GetFiles(string path) { Queue&lt;string&gt; queue = new Queue&lt;string&gt;(); queue.Enqueue(path); while (queue.Count &gt; 0) { path = queue.Dequeue(); try { foreach (string subDir in Directory.GetDirectories(path)) { queue.Enqueue(subDir); } } catch (Exception ex) { Console.Error.WriteLine(ex); } string[] files = null; try { files = Directory.GetFiles(path); } catch (Exception ex) { Console.Error.WriteLine(ex); } if (files != null) { for (int i = 0; i &lt; files.Length; i++) { yield return files[i]; } } } } public string scanfile(string path) { int offset = 0; int length = 0; byte[] buffer; var variable1 = new StringBuilder(); FileInfo fi = new FileInfo(path); length = (int)fi.Length; using (var mmf1 = MemoryMappedFile.CreateFromFile(path, FileMode.OpenOrCreate, null, offset + length)) { // Create reader to MMF using (var reader = mmf1.CreateViewAccessor(300, 4000, MemoryMappedFileAccess.Read)) { // Read from MMF buffer = new byte[4000]; reader.ReadArray&lt;byte&gt;(0, buffer, 0, 4000); } } return variable1.ToString(); } </code></pre> <p>P.S.: Get Files I took it from Stack Overflow too.</p> <p>But, it's very slow if i use it for many files in a directory because it calculates first the files in the directory. </p> <p>Can you help me to optimize these codes? </p>
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    1. USFurqan Safdar
    1. USMichael
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    1. COThat code won't just be "very slow" - it will be infinite, as you're never changing the value of `i` or `numerOfFiles`. That suggests this isn't your real code, which makes it hard to diagnose your problem much further.
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      1. USJon Skeet
    2. COAlso, you don't seem to show what `scanfile` or `GetFiles` do, and also why do you need it in an array?
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      1. USArran
    3. COI would suggest this answer: http://stackoverflow.com/questions/724148/is-there-a-faster-way-to-scan-through-a-directory-recursively-in-net/724184#724184
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      1. USKarel Burda
 

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