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Wait For Exclusive Access

using System; using System.IO; using System.Threading; namespace jQueryBuddy.Utilities {     public class FileUtilities     {         public static bool WaitForExclusiveAccess(string filename, int timeout)         {             const int retryPause = 100;             var startTime = DateTime.Now.Ticks;             do             {                 try                 {                     // Try to open the file for exclusive access                     using (new FileStream(filename, FileMode.Open, FileAccess.ReadWrite, FileShare.None))                     {                         return true;                     }                 }                 // Not ideal checking for an exception, especially one which may be raised for a number of                 // reasons but this may be the only way.                 catch (IOException)                 {                     Thread.Sleep(retryPause);                 }             } while (new TimeSpan(DateTime.Now.Ticks - startTime).TotalSeconds < timeout);             return false;         }     } }