This is only currently meant for use by regression tests that don't have any issues if XEngine is started up quickly, since no other operations will be occuring simultaneously.
Therefore, this is not yet documented externally.
This is to avoid the worst of the problems in mono 2.6, 2.10 where an aborted thread does not always release all its locks.
This very short grace period is identical to the existing behaviour when a script is removed from the scene.
This is to take account of situations where the user was intending to specify a script engine using colon using its default language.
This probably generates few false positive as scripts are less likely to end a first line colon with a comment for other purposes.
This works by only posting the "Selected engine unavailable" message if we're falling back on XEngine and the language is one handled by XEngine.
In cases where the language is not handled or not allowed, the user will still be notified by the later compiler error.
This avoids the overwhelming majority of false positives where the first line contains a : for other reasons (e.g. source control systems, vim settings, etc.)
Ultimately, I think it would be better to detect script language/engine with a mechanism that didn't just rely on : detection (e.g like #! in unix scripts).
This is to provide an indication of what's happening now that the default isn't to report every single script start.
Changes XEngine logging level in OpenSim.exe.config from WARN to INFO.
Also removes superflous Close() commands for statements taking place within using() constructs
Also adds some comment out debug log messages for future use.
The previous lines-per-second measurement used for top scripts report was inaccurate, since lines executed does not reflect time taken to execute.
Also, every fetch of the report would reset all the numbers limiting its usefulness and we weren't even guaranteed to see the top 100.
The actual measurement value should be script execution time per frame but XEngine does not work this way.
Therefore, we use actual script execution time scaled by the measurement period and an idealised frame time.
This is still not ideal but gives reasonable results and allows scripts to be compared.
This commit moves script execution time calculations from SceneGraph into IScriptModule implementations.
The first llDie() could lock Scene.m_deleting_scene_object.
The second llDie() would then wait at this lock.
The first llDie() would go on to remove the second script but always abort it since the second script's WorkItem would not go away.
Easiest solution here is to remove the m_deleting_scene_object since it's no longer justified - we no longer lock m_parts but take a copy instead.
This also requires an adjustment in XEngine.OnRemoveScript not to use instance.ObjectID instead when firing the OnObjectRemoved event.
This seems to be a particular problem with ReaderWriterLockSlim, though other locks can be affected as well.
It has been seen to happen when llDie() is called in a linkset running more than one script.
Alleviation here means supplying a ScriptInstance.Stop() timeout of 1000ms rather than 0ms, to give events a chance to complete.
Also, we check the IsRunning status at the top of the ScriptInstance.EventProcessor() so that another event doesn't start in the mean time.
Ultimately, a better solution may have to be found since a long-running event would still exceed the timeout and be aborted.
This is to deal with the hundred lines of command splurge when one previously typed "help"
Modelled somewhat on the mysql console
One can still type help <command> to get per command help at any point.
Categories capitalized to avoid conflict with the all-lowercase commands (except for commander system, as of yet).
Does not affect command parsing or any other aspects of the console apart from the help system.
Backwards compatible with existing modules.
The Path.GetDirectoryName call in Compiler.CompileFromDotNetText is unnecessary since AppDomain.CurrentDomain.BaseDirectory is always a directory.
Later path concatenation is already done by Path.Combine() which handles any trailing slash.
Removing Path.GetDirectoryName() will not affect the runtime but allows NUnit to work since it doesn't add a trailing slash to AppDomain.CurrentDomain.BaseDirectory.
This causes false positives if a simulator has more than 1 region and the current region is 'root' since this sends the command separately to each region and each region has its own XEngine
On resume, we need to place requeue the script for event processing if there are any events on the queue.
Also need to do this under m_Script lock in order to avoid a race
These aim currently to suspend and resume all scripts.
However, resume isn't currently working due to what looks like a bug in resume functionality itself.
The item ID is the one required for any script manipulation on the command line, so I think it's somewhat more useful to show this bearing in mind the limited space available
Justin Clark-Casey (justincc)