VS2005: Problem with System.Threading.Monitor

[Peter Schmitz]

Hi,

I just tried to convert my current project to the new beta 2 of the .net
framework and I encountered some problems with my thread synchronization -
that formerly worked well.

When I release a monitor by System.Threading.Monitor(myvar) I receive the
following error message:

System.Threading.SynchronizationLockException: Object synchronization method
was called from an unsynchronized block of code.

Of course I acquired the Monitor some lines above by
System.Threading.Monitor.Enter(myvar).

can anyone help?

Thanks
Peter

[Jon Skeet [C# MVP]]

Peter Schmitz <Pe**********@discussions.microsoft.com> wrote:

I just tried to convert my current project to the new beta 2 of the .net
framework and I encountered some problems with my thread synchronization -
that formerly worked well.

When I release a monitor by System.Threading.Monitor(myvar) I receive the
following error message:

System.Threading.SynchronizationLockException: Object synchronization method
was called from an unsynchronized block of code.

Of course I acquired the Monitor some lines above by
System.Threading.Monitor.Enter(myvar).

can anyone help?

Could you post a short but complete program which demonstrates the
problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean by that.

You could well have a bug in your code which is masked by another bug
in the framework - Monitor.Exit doesn't check whether or not the
monitor is currently owned in v1.1.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too