shutdown. Fixes Mantis #8494.
Threads are aborted when shutting down and ThreadAbortException is odd
in that it is rethrown at the end of the catch unless the abort is
reset. No functional changes but fewer error messages on shutdown.
This is to achieve a clean separation of concerns - the watchdog is an inappropriate place for work management.
Also adds a WorkManager.RunInThreadPool() class which feeds through to Util.FireAndForget.
Also switches around the name and obj arguments to the new RunInThread() and RunJob() methods so that the callback obj comes after the callback as seen in the SDK and elsewhere
This is possible where there is more than one scene (multiple copies of the same script engine) and/or more than one script engine being used.
These operations are not thread safe and could be leading to the exceptions/problems seen in http://opensimulator.org/mantis/view.php?id=6651
This also prevents a small race condition where more than one AsyncLSLCmdHandlerThread could be started.
This was because AsyncCommandManager was handing an item ID to IHttpRequestModule.StopHttpRequest() rather than the expected request ID.
This commit also makes the http request asynchronous using BeginGetResponse() rather than doing this by launching a new thread
so that we can more safely abort it via HttpWebRequest.Abort() rather than aborting the thread itself.
This also renames StopHttpRequest() to StopHttpRequestsForScript() since any outstanding requests are now aborted and/or removed.
On the first frame, all startup scene objects are added to the physics scene.
This can cause a considerable delay, so we don't start raising the alarm on scene loop timeouts until the second frame.
This commit also slightly changes the behaviour of timeout reporting.
Previously, a report was made for the very first timed out thread, ignoring all others until the next watchdog check.
Instead, we now report every timed out thread, though we still only do this once no matter how long the timeout.
OpenSim.Region.Environment into a "framework" part and a modules only
part. This first changeset refactors OpenSim.Region.Environment.Scenes,
OpenSim.Region.Environment.Interfaces, and OpenSim.Region.Interfaces
into OpenSim.Region.Framework.{Interfaces,Scenes} leaving only region
modules in OpenSim.Region.Environment.
The next step will be to move region modules up from
OpenSim.Region.Environment.Modules to OpenSim.Region.CoreModules and
then sort out which modules are really core modules and which should
move out to forge.
I've been very careful to NOT BREAK anything. i hope i've
succeeded. as this is the work of a whole week i hope i managed to
keep track with the applied patches of the last week --- could any of
you that did check in stuff have a look at whether it survived? thx!
and makes it use a common set of types in both engine. Fixes the issues with
running both engines and HTTP requests / listens / timers etc..
Also fixes a couple of minor Scene issues and a CTB by nullref.
all methods needed outside the API ststic. Async command processing
is now wholly internal to the API. This sets the stage for the next
convergence step.
