CompleteEraser/SharedInfo.cs

   1 using System;\r
   2 using System.Text;\r
   3 using System.IO;\r
   4 using System.IO.MemoryMappedFiles;\r
   5 using System.Collections.Generic;\r
   6 \r
   7 namespace CompleteEraser\r
   8 {\r
   9     class SharedInfo : IEnumerable<string>, IDisposable\r
  10     {\r
  11         MemoryMappedFile mmf;\r
  12         public SharedInfo()\r
  13         {\r
  14             mmf = MemoryMappedFile.OpenExisting("CompleteEraser.MemMap");\r
  15         }\r
  16 \r
  17         public IEnumerator<string> GetEnumerator()\r
  18         {\r
  19             MemoryMappedViewStream mms = mmf.CreateViewStream();\r
  20             StreamReader sr = new StreamReader(mms, Encoding.Unicode);\r
  21             try\r
  22             {\r
  23                 while (sr.EndOfStream == false)\r
  24                 {\r
  25                     string s = sr.ReadLine();\r
  26                     if(s != string.Empty && s[0] != '\0')\r
  27                         yield return s;\r
  28                 }\r
  29             }\r
  30             finally\r
  31             {\r
  32                 sr.Close();\r
  33                 mms.Close();\r
  34             }\r
  35         }\r
  36 \r
  37         System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()\r
  38         {\r
  39             throw new NotImplementedException();\r
  40         }\r
  41 \r
  42         public void Dispose()\r
  43         {\r
  44             GC.SuppressFinalize(this);\r
  45             mmf.Dispose();\r
  46         }\r
  47     }\r
  48 }\r