Multi processes read&write one file

by

C#’s named EventWaitHandle is the way to go here. Create an instance of wait handle in every process which wants to use that file and give it a name which is shared by all such processes.

EventWaitHandle waitHandle = new EventWaitHandle(true, EventResetMode.AutoReset, "SHARED_BY_ALL_PROCESSES");

Then when accessing the file wait on waitHandle and when finished processing file, set it so the next process in the queue may access it.

waitHandle.WaitOne();
/* process file*/
waitHandle.Set();

When you name an event wait handle then that name is shared across all processes in the operating system. Therefore in order to avoid possibility of collisions, use a guid for name (“SHARED_BY_ALL_PROCESSES” above).

More Related Contents:

  1. What’s wrong with using Thread.Abort()
  2. Volatile vs. Interlocked vs. lock
  3. When should the volatile keyword be used in C#?
  4. Change WPF controls from a non-main thread using Dispatcher.Invoke
  5. Killing a .NET thread
  6. How to kill a thread instantly in C#?
  7. Alternatives to Thread.Sleep()
  8. Updating an ObservableCollection in a separate thread
  9. What are the differences between various threading synchronization options in C#?
  10. Unable to use more than one processor group for my threads in a C# app
  11. SpinWait vs Sleep waiting. Which one to use?
  12. thread with multiple parameters
  13. Perform screen-scape of Webbrowser control in thread
  14. What is the difference between ManualResetEvent and AutoResetEvent in .NET?
  15. Lock (Monitor) internal implementation in .NET
  16. .NET 4.0 and the dreaded OnUserPreferenceChanged Hang
  17. How to debug a single thread in Visual Studio?
  18. Thread.Sleep vs Task.Delay?
  19. Reading an int that’s updated by Interlocked on other threads
  20. How to get awaitable Thread.Sleep?
  21. SynchronizationLockException on Monitor.Exit when using await
  22. How to handle Task.Run Exception
  23. ThreadStaticAttribute in ASP.NET
  24. How to let Timer skip tick if the previous thread is still busy
  25. Does Func.BeginInvoke use the ThreadPool?
  26. Update label from another thread [duplicate]
  27. SqlConnection Thread-Safe?
  28. Is it good idea to use “Control.CheckForIllegalCrossThreadCalls = false” [duplicate]
  29. .NET Core equivalent to Thread.Abort
  30. Memory usage in C#

Leave a Comment