wasSharpNET – Diff between revs 22 and 27

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2 // Copyright (C) Wizardry and Steamworks 2017 - License: GNU GPLv3 // 2 // Copyright (C) Wizardry and Steamworks 2017 - License: GNU GPLv3 //
3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, // 3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, //
4 // rights of fair usage, the disclaimer and warranty conditions. // 4 // rights of fair usage, the disclaimer and warranty conditions. //
5 /////////////////////////////////////////////////////////////////////////// 5 ///////////////////////////////////////////////////////////////////////////
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-   6  
-   7 using System;
6   8 using System.Diagnostics;
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7 using System.IO; 9 using System.IO;
8   10  
9 namespace wasSharpNET.IO.Utilities 11 namespace wasSharpNET.IO.Utilities
10 { 12 {
-   13 public static class IOExtensions
-   14 {
-   15 /// <summary>
-   16 /// Attempt to obtain a filestream by polling a file till the handle becomes available.
-   17 /// </summary>
-   18 /// <param name="path">the path to the file</param>
-   19 /// <param name="mode">the file mode to use</param>
-   20 /// <param name="access">the level of access to the file</param>
-   21 /// <param name="share">the type of file share locking</param>
-   22 /// <param name="timeout">the timeout in milliseconds to fail opening the file</param>
-   23 /// <returns>a filestream if the file was opened successfully</returns>
-   24 public static FileStream GetWriteStream(string path, FileMode mode, FileAccess access, FileShare share,
-   25 int timeout)
-   26 {
-   27 var time = Stopwatch.StartNew();
-   28 while (time.ElapsedMilliseconds < timeout)
-   29 try
-   30 {
-   31 return new FileStream(path, mode, access, share);
-   32 }
-   33 catch (IOException e)
-   34 {
-   35 // access error
-   36 if (e.HResult != -2147024864)
-   37 throw;
-   38 }
-   39  
-   40 throw new TimeoutException($"Failed to get a write handle to {path} within {timeout}ms.");
11 public static class IOExtensions 41 }
12 { 42  
13 public static bool isRootedIn(this string path, string root) 43 public static bool isRootedIn(this string path, string root)
14 { 44 {
15 // Path is empty and root is empty. 45 // Path is empty and root is empty.
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26   56  
27 // The path is empty and the root is not. 57 // The path is empty and the root is not.
28 if (string.IsNullOrEmpty(path)) 58 if (string.IsNullOrEmpty(path))
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29 return true; 59 return true;
30   60  
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31 DirectoryInfo p = new DirectoryInfo(path); 61 var p = new DirectoryInfo(path);
32 DirectoryInfo r = new DirectoryInfo(root); 62 var r = new DirectoryInfo(root);
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33   63  
34 return string.Equals(p.Parent?.FullName, r.Parent?.FullName) || isRootedIn(p.Parent?.FullName, root); 64 return string.Equals(p.Parent?.FullName, r.Parent?.FullName) || isRootedIn(p.Parent?.FullName, root);
35 } 65 }
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36   66  
37 public static void Empty(this string directory) -  
38 { 67 public static void Empty(this string directory)
39 DirectoryInfo dir = new DirectoryInfo(directory); -  
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40   68 {
41 foreach (FileInfo fi in dir.GetFiles()) 69 var dir = new DirectoryInfo(directory);
42 { 70  
43 fi.Delete(); 71 foreach (var fi in dir.GetFiles())
44 } 72 fi.Delete();
45   73  
46 foreach (DirectoryInfo di in dir.GetDirectories()) 74 foreach (var di in dir.GetDirectories())
47 { 75 {
48 Empty(di.FullName); 76 Empty(di.FullName);