Re: [Quickfix-developers] .NET stopping and starting initiator

[Patrick W. <pw...@ka...>]

Thanks for the replies.

I think I have fixed this (for my own implementation). I discovered that
the CPPMessageStore.m_pUnmanaged was being deleted twice and worked out
that it was due to me obtaining a pointer to the messagestore in my
dotnet class:

        public virtual void onLogon(SessionID session_)
        {
            _messageStore =3D =
Session.lookupSession(session_).getStore();
	  }

Where _messageStore is defined as follows:
protected QuickFix.MessageStore _messageStore;

When I unload the above class I find that if I call SuppressFinalize the
error goes away:
        public virtual void Shutdown()
        {
            GC.SuppressFinalize(_messageStore);
            _messageStore =3D null;
            =20
        }

If I omit the suppressfinalize the underlying messagestore is double
deleted and the files can remain locked. Note that calling Dispose()
didn't help and the error remained even if I waited a few minutes for
the GC to do its job.=20

Patrick


-----Original Message-----
From: Francis Gingras [mailto:fr...@at...]=20
Sent: Wednesday, 31 October 2007 6:39 AM
To: Patrick Wright
Subject: RE: [Quickfix-developers] .NET stopping and starting initiator

Patrick,

I have had the same problem in various projects (and QF builds) for
years.
Disposing does not help in my case, nor does forcing garbage collection.
I
never figured out how to solve it so if you do please post the
resolution!

Thanks,

Francis


-----Original Message-----
From: Oren Miller [mailto:or...@qu...]=20
Sent: Tuesday, October 30, 2007 12:07
To: Patrick Wright
Cc: qui...@li...
Subject: Re: [Quickfix-developers] .NET stopping and starting initiator

Have you tried disposing the initiator?

--oren

On Oct 24, 2007, at 7:08 PM, Patrick Wright wrote:


	QuickFIX Documentation:
http://www.quickfixengine.org/quickfix/doc/html/index.html
	QuickFIX Support: http://www.quickfixengine.org/services.html


	Hi,

	=20

	When a socket initiator is stopped the storage files are still
in
use so that starting it again causes an error ('cannot open body file').

	I get the problem when using the .NET version of QuickFix 1.12.4
but
I notice that there is at least one other thread asking about this
problem.

	Here is the relevant code section copied from that previous
thread:

	=20

	> settings =3D new SessionSettings(configFile);

	> storeFactory =3D new
	> FileStoreFactory(settings); logFactory =3D new
FileLogFactory(settings);
	> messageFactory =3D new DefaultMessageFactory(); initiator =3D new
	> ThreadedSocketInitiator(this, storeFactory, settings,
logFactory,
	> messageFactory);
	>
	>...
	> initiator.start();
	>...
	> initiator.stop();
	> initiator =3D null;
	> settings =3D null;
	> storeFactory =3D null;
	> logFactory =3D null;
	> messageFactory =3D null;
	> ----------------------------------------
=09
	> At this point all of the four storage files are still locked
(can't be
	> opened in notepad). Forcing garbage collection doesn't help.

	=20

	My question is:

	Has anyone managed to work around/fix this problem?

	I am using QuickFix from a .NET 2.0 WinForms app in C#.

	=20

	Thanks,

	Patrick Wright

	=20

=09
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