Also fixes bug in do-while test
Improves detection of failure due to invalid script in test
Sets up xengine anew for each test rather than once for the while testsuite to improve isolation between tests.
Stop listening for chat after the first 'script is running' chat is received to reduce test run time.
This involves inserting opensim_reserved_CheckForCoopTermination() calls in lsl -> c# translation at any place where the script could be in a loop with no wait calls.
These places are for, while, do-while, label, user function call and manual event function call.
Call goes through to an XEngineScriptBase which extends ScriptBase.
IEngine is extended to supply necessary engine-specific parent class references and constructor parameters to Compiler.
Unfortunately, since XEngineScriptBase has to be passed WaitHandle in its constructor, older compiled scripts will fail to load with an error on the OpenSim console.
Such scripts will need to be recompiled, either by removing all *.dll files from the bin/ScriptEngines/<region-id> or by setting DeleteScriptsOnStartup = true in [XEngine] for one run.
Automatic recompilation may be implemented in a later commit.
This feature should not yet be used, default remains termination with Thread.Abort() which will work as normal once scripts are recompiled.
This makes use of EventWaitHandles since various web references indicate that Thread.Interrupt() can also cause runtime instability.
If co-op termination is enabled, then termination sets the wait handle instead of waiting for a timeout before possibly aborting the thread.
This allows the script to cleanly terminate if it's in a llSleep/LL function delay or the next time it enters such a wait without any timeout period.
Co-op termination is not yet testable since checking for termination request within loops that never trigger a wait is not yet implemented.
This commit, unlike 1b5c41c, passes the wait handle as an extra parameter through IScript.Initialize() instead of passing IScriptInstance itself.
This makes use of EventWaitHandles since various web references indicate that Thread.Interrupt() can also cause runtime instability.
If co-op termination is enabled, then termination sets the wait handle instead of waiting for a timeout before possibly aborting the thread.
This allows the script to cleanly terminate if it's in a llSleep/LL function delay or the next time it enters such a wait without any timeout period.
Co-op termination is not yet testable since checking for termination request within loops that never trigger a wait is not yet implemented.
This is to allow the future co-operative script thread terminate feature to detect and act upon termination requests.
This splits the assembly and state loading out from the ScriptInstance() constructor to a separate Load() method
in order to facilititate continued script logic regression testing.
This workaround relies on the fact that a closing client goes inactive before the attachments derez calls happen.
This reverts the change to remove scripts too early instead of stopping them, since the the two step stop then remove is necessary to execute the detach event.
This involves making Attachments module listen for start/stop script changes.
It also involves removing the script from the region on detach in the same manner as every other DeleteSceneObject() call rather than simply stopping it
This is necessary tue to the bad assymetry of start and stop script triggers but it appears to be the correct behaviour anyway, as detached objects are completely gone from the sim.
Not just in a state where their scripts have been stopped.
1. The error checking for the case where there's no "My Inventory" folder was
incorrect: it checked the wrong variable.
2. If GetSystemFolderForType() is called to get AssetType.RootFolder then
it should return the root folder immediately; not look for another root
folder below it.
This is slightly different in that SetCurrentCulture() does not use overridden settings if the system culture matches en-US but some settings there have been changed.
This is what we want - we do not want to use any system overriden settings.
As with script stop (via llDie()) aborting other scripts event threads, llResetOtherScript() can also abort any current event thread on another script.
On mono 2.6, 2.10 and possibly later this may cause locking problems in certain code areas.
This commit reuses the recently introduced [XEngine] WaitForEventCompletionOnScriptStop to make this a 1 sec timeout, rather than 0 secs.
Default is 1000, as has previously been the case.
This parameter exists for further debug work concerning mono 2.10 crashes that may be related to locks not being removed on Thread.Abort
This is for bug hunting purposes where thread aborts may be causing dangling lock issues and subsequent vm crashes on mono (with ReaderWriterLockSlim, etc.)
When an object is removed, its scripts are stopped and then the thread running them is aborted if stop takes too long.
However, it appears that aborting a thread at just the wrong moment when it is obtaining a ReaderWriterLockSlim lock can leave this lock in an inconsistent state.
One symptom of this is that mono leaps to 100% cpu and a vm thread dump reveals lots of threads waiting for a ReaderWriterLockSlim lock without any thread actually holding it.
This is probably the same problem as encountered originally in commit 12cebb12
This commit looks to plaster this problem by putting lock obtaining methods inside finally blocks which should be uninterruptible by thread aborts.
This commit also adds script name, part name, uuid, etc. for later identification.
This information has been sent to console since 2009 but may be turned down if it proves too noisy.
However, I still currently need it to investigate some region problems probably triggered by scripting.
Mono 2.4.3 doesn't like this when running nunit, with nunit throwing
AssetTests`2 : System.MemberAccessException : Cannot create an instance of OpenSim.Data.Tests.AssetTests`2[TConn,TAssetData] because Type.ContainsGenericParameters is true.
and similar. Mono 2.10.8.1 does not have this issue.
So will wait until min version of mono bumps before restoring.
Setting this to false will block all restart requests from the viewer even if they are otherwise legitimate.
One use is to block region restarts if necessary whilst restart functionality remains buggy or triggers bugs in modules,
though these should be fixed as soon as practicable.
Default is true, as has been the case historically.
This also eliminates the "[PRESENCE HANDLER]: GetAgents called without required uuids argument"
which has started to pop up in the logs when a call is made with an empty uuid array as occasionally happens.
This was necessary historically but hasn't been for many years.
Can still get CreatorIdAsUuid, which is really just a UUID cached version of the string CreatorId
This is to help track down http://opensimulator.org/mantis/view.php?id=6359 where creator IDs on items and rezzed objects have been reported to sometimes change.
This should never happen - a particular item should never change creators (if an item is given then a new item (with new id) is created).
Invariants are inventory type, asset type, folder (changed only on MoveItems()), CreatorIdentification and Owner.
If caller attempts to change an invariant, warning is logged but other properties are still changed.
If you see this warning, reporting on Mantis 6359 would be very welcome with the exact operation being done at the time.
This prevents a slow grid information network call from holding up the main packet handling thread.
There's no obvious race condition reason for not doing this asynchronously.
Halt already occurs if the relevant config sections are not present.
So it also makes sense to halt if the implementations themselves cannot be loaded.
This is to avoid the entire scene loop being held up when the group service is slow to respond.
There's no obvious reason for these queries to be sync rather than async.
Uses new IEntityInventory.TryGetScriptInstanceRunning()
Makes it clearer that TaskInventoryItem.ScriptRunning cannot be used as it is temporary and not updated.
This was because we were removing by circuitcode where NPCs have no code.
Now removing by agent ID instead.
This commit also fixes the "show circuits" console command to work properly where the circuit has no associated IP address.
Unlike "save oar", this was happening on the same thread as the original request.
The timeout happens on another so the original thread is never aborted.
On "save oar" this leaves the thread hanging (still bad) but on "save iar" it left the console thread hanging.
Temporary fix is to make "save iar" do asset request on a separate thread, like "save oar".
Longer term fix will be to restructure asset save to use a ManualResetEvent rather than a separate timeout timer.
XEngine listeners to EventManager.OnShutdown which is triggered from base.Close().
Possibly it could listen for the earlier OnSceneShuttingDown instead, but the easier solution right now is to relocate disposal of the physics scene.
This bug has existed since c150320 (Thu Jul 26 15:27:18 2012) and was in 0.7.4
Viewer 3 will discard such a message if the chat message owner does not match the avatar.
We were filling the ownerID with the primID, so this never matched, hence viewer 3 did not see any script error messages.
This commit fills the ownerID in with the prim ownerID so the script owner will receive script error messages.
This does not affect viewer 1 and associated viewers which continue to process script errors as normal.
This is to make it easier to distinguish these exceptions from unexpected OpenSimulator problems internally and in regression tests.
No functional changes.
This introduces a pull stat type in addition to the push stat type.
A pull stat takes a method on construction which knows how to update the stat on request.
In this way, special interfaces for pull stat collection are not necessary.
Even when an avatar is standing still, it's sending in a constant stream of AgentUpdate packets that the client creates new UDPPacketBuffer objects to handle.
This option pools those objects. This reduces memory churn.
Currently off by default. Works but the scope can be expanded.
This is controlled via the "debug lludp start <in|out|all>" and "debug lludp stop <in|out|all>" region console commands.
The command "debug lludp status" will show current status.
I believe UseCircuitCode is sent on EnableSimulator EQ message, rather than EstablishAgentCommunication
At least with LL 3.3.4, EstablishAgentCommunication appears unnecessary in the teleport context -
viewer still requests it though possibly only after TeleportFinish(). However, we will continue to send it.
I think this is more useful right now since it tells us if the viewer requested a seed caps at all in various scenarios (such as when teleporting to a new region).
These were neither being returned or in many places reused.
Getting packets from a pool rather than deallocating and reallocating reduces memory churn which in turn reduces garbage collection time and frequency.
This allows different categories of stats to be shown, with options to list categories or show all stats.
Currently categories are scene and simulator and only a very few stats are currently registered via this mechanism.
This commit also adds percentage stats for packets and blocks reused from the packet pool.
This was stopping http://code.google.com/p/opensimtools/wiki/RemoteAdminPHPClass from working with some methods (e.g. create_user).
However, this casting has been around for at least 2 years so I'm puzzled that it worked in the first place, though it probably is extremely old sample code.
This allows a closed grid to delete asset types other than maptile remotely.
Only operational if AllowRemoteDelete = true also.
Defaults to false - do not enable if anybody other than you can make asset service requests.
This allows us to use a common check for both AssetService and XAssetService.
It also allows future console commands to delete an asset.
As before, deletion of maptile assets is not allowed remotely unless this is explicitly configured.
This is done in the way that one would expect (e.g. moving a folder increments version number on both source and destination parent folders).
This should hopefully improve viewer reuse of its cached inventory information.
Currently MySQL only but will be implement for SQLite/MSSQL if there are no issues.
This is to stop viewer inventory cache version numbers becoming out of sync with grid stored numbers when viewer performs these actions.
If there are no problems with these changes, they will be propogated to SQLite (and MSSQL if that's simple enough).
May also need to do the same on folder store/create/delete and maybe propogate version increments up the folder hierarchy, but that requires investigation.
This is to stop viewer inventory cache version numbers becoming out of sync with grid stored numbers when viewer performs these actions.
If there are no problems with these changes, they will be propogated to SQLite (and MSSQL if that's simple enough).
May also need to do the same on folder store/create/delete and maybe propogate version increments up the folder hierarchy, but that requires investigation.
This controls how many undo steps the simulator will store for each prim.
Default is now 20 rather than 5 as it briefly was.
The default number could be increased through this is a memory tradeoff which will scale with the number of prims in the sim and level of activity.
This was present in the code but not enforced, which led to a memory leak over time as part properties were changed, whether by viewer, script or another source.
This commit enforces that limit, which will soon become configurable.
Regression test for undo limit added
Should help with http://opensimulator.org/mantis/view.php?id=6279
This was accidentally introduced in 4fc0cfb
This commit also consistently removes the AssetXferUploader when the transaction completes, no matter if it completed on asset upload or item operation.
The amount of data being retained was small, since this was clothing/bodypart metadata in the asset rather than textures themselves.
This was only used if none of new item, update item or update task item had been set.
But since all transactions go through these paths this old code is redundant.
This was preventing the previous race condition fix in 4fc0cfb from actually working.
This commit also removes some of the pointless transaction id checks - these conditions are already being enforced in AgentAssetsTransactions.
This is done for consistency and to allow removal or some access methods that increase code complexity.
However, this path has not been used for a long time, not even by LL 1.23 - viewers use caps http upload for this instead
On creating these items, the viewer sends a UDP AssetUploadRequest followed by a CreateInventoryItem.
It was possible for the CreateInventoryItem/UpdateInventoryItem to occasionally outrace the AssetUploadRequest and fail to find an initialized Xfer object, at which point the item create would fail.
So instead we always set up a Xfer object on either the asset or inventory item update request.
This does not introduce a new race because code already exists to delay the item operation until the asset is uploaded if necessary (but this only worked if the xfer object already existed)
This allows you to display details of all objects in a given bounding box.
Values parts of the co-ord can be left out as appropriate (e.g. to get all objects between the ground and z=30.
See "help show object pos" for more details.
Justin Clark-Casey (justincc)