Hello list,
Hopefully I didn't miss any news on this but, I was wondering if there
has been any improvements toward .Net's event posting and
listening/receiving mechanism.
Specifically the desire of registering multiple events per connection.
i.e.
EventComp = new FbRemoteEvent(FireBirdConnection, new string[] {
"event1","event2","event3","eventN" });
* Currently, under 2.0.1.0 client - this implementation fails to receive
any events.
Thanks,
Charlie
-----Original Message-----
From: Jiri Cincura (JIRA) [mailto:trac...@firebirdsql.org]
Sent: Wednesday, January 21, 2009 11:20 AM
To: firebird-net-provider@lists.sourceforge.net
Subject: [Firebird-net-provider] [FB-Tracker] Reopened: (DNET-171)
Implementing IDisposable interface and possibility to stop Socket
operations in FbRemoteEvent
[
http://tracker.firebirdsql.org/browse/DNET-171?page=com.atlassian.jira.p
lugin.system.issuetabpanels:all-tabpanel ]
Jiri Cincura reopened DNET-171:
-------------------------------
Opened for better implementation. Check next comment.
> Implementing IDisposable interface and possibility to stop Socket
> operations in FbRemoteEvent
> ----------------------------------------------------------------------
> ------------------------
>
> Key: DNET-171
> URL: http://tracker.firebirdsql.org/browse/DNET-171
> Project: .NET Data provider
> Issue Type: New Feature
> Components: ADO.NET Provider
> Affects Versions: 2.5.0 Alpha 2
> Reporter: Pavel
> Assignee: Jiri Cincura
> Fix For: 2.5.0 Beta 1, 2.5.0 Beta 2, 2.5.0
>
>
> is it possible to implement an IDisposable pattern for FbRemoteEvent?
There are a lot of small problems now. For instance:
> if you pass an connection object to the FbRemoteEvent constructor
> there are two possibilities
> 1) you are as owner responsible for destroying this connection object
> - doesn't work for now, if you dispose connection, there is a socket
> exception, cause RemoteEvent still tries to read from already disposed
> stream
> 2) FbRemoteEvent should destroy it - there is no place in code, where
> FbRemoteEvent would manage connection dispose. As i understand, you
cannot stop it from listening at all. the thread, that is reading
responses from server is declared "background" and reads until owning
window is destroyed (and causes bunch of ThreadAbortedException's) to
understand the problem, consider this test case
> FbConnection conn1 = new FbConnection("");
> conn1.Open();
> revent = new FbRemoteEvent(conn1, new[] { "event" });
> revent.RemoteEventCounts += revent_RemoteEventCounts;
> revent.QueueEvents(); revent.CancelEvents(); revent.RemoteEventCounts
> -= revent_RemoteEventCounts; revent.Connection = null; //this will
> cause an socket exception conn1.Dispose(); Is there any possibility to
> implement some Stop method (that causes stoppage of all socket/thread
stuff) - in my opinion - CancelEvents might do this work. And it would
be nice to know, that the same functionality (and also dispose of
connection) would be done in Dispose method. We can still dispose
connection on our own, but only if we can stop socket listening (and
this must be clearly stated in docu).
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