CompleteEraser/ShrredFiles.cs

   1 using System;\r
   2 using System.Collections.Generic;\r
   3 using System.IO;\r
   4 using System.Threading;\r
   5 using System.Threading.Tasks;\r
   6 \r
   7 namespace CompleteEraser\r
   8 {\r
   9     class ShrredFiles : IOperation\r
  10     {\r
  11         public event ProgressingEventHandler Progressing;\r
  12         public event ProgressedEventHandler Progressed;\r
  13         public event EventHandler Complete;\r
  14 \r
  15         public async void ExecuteAsync(IEnumerable<string> files, CancellationToken cancelToken)\r
  16         {\r
  17             foreach (string file in files)\r
  18             {\r
  19                 Progressing(this, new ProgressingEventArgs(file));\r
  20 \r
  21             RETRY:\r
  22                 ProgressedEventArgs e = new ProgressedEventArgs(file, null);\r
  23 \r
  24                 try\r
  25                 {\r
  26                     await Task.Factory.StartNew(() =>\r
  27                     {\r
  28                         FileBreaker.BreakFileOrFolder(file);\r
  29                     }, cancelToken);\r
  30                 }\r
  31                 catch (OperationCanceledException)\r
  32                 {\r
  33                     break;\r
  34                 }\r
  35                 catch (UnauthorizedAccessException uae)\r
  36                 {\r
  37                     e.ex = uae;\r
  38                 }\r
  39                 catch (IOException ie)\r
  40                 {\r
  41                     e.ex = ie;\r
  42                 }\r
  43                 Progressed(this, e);\r
  44                 if (e.retry)\r
  45                     goto RETRY;\r
  46                 if (e.breaked)\r
  47                     break;\r
  48             }\r
  49             this.Complete(this, null);\r
  50         }\r
  51     }\r
  52 }\r