[Mono-devel-list] Access violation after exiting a mono app with an open StreamWriter (latest builds)

[Andrew Gleave]

Hi,
    We have an app that uses a StreamWriter to write logging and
debugging info to a file.  If I terminate the app (Ctrl -c) when it is
running, then re-launch it, I get an access violation/ sharing violation
when the StreamWriter is created.  I can't seem to remember this being
an issue, before the IO layer became daemon-less.  This only affects
recent builds and our RedHat 9 box running 1.1.7 is fine.  However,
Debian running Revision 43534 is broken. And I know it affects Mac OS X
also.  I have included some sample code, and if needed I can file a bug
report.
 
Thanks
 
Andrew Gleave
 
Software Engineer
 
Exception:
 
Unhandled Exception: System.IO.IOException: Sharing violation on path
TestApp.log
in <0x0032a> System.IO.FileStream:.ctor (System.String name, FileMode
mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean
isAsync, Boolean anonymous)
in <0x0001f> System.IO.FileStream:.ctor (System.String name, FileMode
mode, FileAccess access, FileShare share)
in (wrapper remoting-invoke-with-check) System.IO.FileStream:.ctor
(string,System.IO.FileMode,System.IO.FileAccess,System.IO.FileShare)
in <0x000e1> System.IO.StreamWriter:.ctor (System.String path, Boolean
append, System.Text.Encoding encoding, Int32 bufferSize)
in (wrapper remoting-invoke-with-check) System.IO.StreamWriter:.ctor
(string,bool,System.Text.Encoding,int)
in <0x0004a> ConsoleApplication4.Class1:Main (System.String[] args)

 
Source:
 
using System;

using System.IO;

namespace AccessViolation

{

class AccessViolationDemo

{

[STAThread]

static void Main(string[] args)

{

StreamWriter writer = null;

string command = string.Empty;

try

{

writer = new StreamWriter("TestApp.log", true,
System.Text.Encoding.UTF8, 4096);

writer.AutoFlush = true;

writer.WriteLine("{0} - Started App. Polling for input...",
DateTime.Now);

while(command != "quit")

command = Console.ReadLine().ToLower(); 

}

finally

{

writer.Close();

writer = null;

}

}

}

}


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