[Mono-bugs] [Bug 349680] New: Unreleased and Un-closed Mutex keeps app from exiting.

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=349680


           Summary: Unreleased and Un-closed Mutex keeps app from exiting.
           Product: Mono: Class Libraries
           Version: 1.2.4
          Platform: i386
        OS/Version: Ubuntu
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: System
        AssignedTo: mono-bugs at ximian.com
        ReportedBy: jaebird at gmail.com
         QAContact: mono-bugs at ximian.com
          Found By: ---


Description of Problem:

Mutex class acts differently from MS on exit.

Steps to reproduce the problem:
1. Run the app below. It should exit properly
2. Now remove the onlyOne.ReleaseMutex(); line. The app does not completely
exit


Actual Results:
Sometimes app hangs on exit and does not return to the shell.

Expected Results:
Exit and return to shell


How often does this happen? 
Mostly every time.

Additional Information:

static void Main() 

{
  // allow only one instance of the process
  Mutex onlyOne = new Mutex(true, Process.GetCurrentProcess().ProcessName);

  if (onlyOne.WaitOne(0, false)) {
    try {

      new Program();
    }
    finally {
      onlyOne.ReleaseMutex();
      onlyOne.Close();
      onlyOne = null;
    }
  }
}

Sometimes, depending on what is in the Program() if the "onlyOne = null" is not
present the app does not exit either.


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