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GetStartParameter().
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stack unwinding.. the faster it goes.
* Tweak XEngine so that it's partially functional again. It's still not great, but basic things work.
(cherry picked from commit 01c3be27460fd3f28efd17b8d6606b883350f653)
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stack unwinding.. the faster it goes.
* Tweak XEngine so that it's partially functional again. It's still not great, but basic things work.
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SmartThreadPool code comes from http://www.codeproject.com/Articles/7933/Smart-Thread-Pool
This version implements thread abort (via WorkItem.Cancel(true)), threadpool naming, max thread stack, etc. so we no longer need to manually patch those.
However, two changes have been made to stock 2.2.3.
Major change: WorkItem.Cancel(bool abortExecution) in our version does not succeed if the work item was in progress and thread abort was not specified.
This is to match previous behaviour where we handle co-operative termination via another mechanism rather than checking WorkItem.IsCanceled.
Minor change: Did not add STP's StopWatch implementation as this is only used WinCE and Silverlight and causes a build clash with System.Diagnostics.StopWatch
The reason for updating is to see if this improves http://opensimulator.org/mantis/view.php?id=6557 and http://opensimulator.org/mantis/view.php?id=6586
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reporting.
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fails to load.
Moves the noise co-op start/stop debug log messages to only display if xengine debug level >= 1
Logs which stop strategy is being used (abort or co-op)
Adjusts some other logging to remove not very useful stuff
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continue to generate C# that is functionality identical to historical generation
This is to eliminate disruption until co-op termination has been well-tested.
In non co-op mode, XEngine will continue to load DLLs of the existing Script class and the new XEngineScript class.
Moving to co-op mode still requires existing script DLL deletion to force recompilation, either manually or by setting DeleteScriptsOnStartup = true for one run.
This change also means that scripts which fail to initialize do not still show up as running scripts.
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This is required because some threads are created in the constructor, so assigning the name afterwards would be too late.
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addition to termination on wait.
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.
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script wait event (llSleep(), etc.)
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.
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during a script wait event (llSleep(), etc.)"
Doing this as a favour to Melanie. This will be back with passing the wait handles directly to the api.
This reverts commit 1b5c41c14ad11325be249ea1cce3c65d4d6a89be.
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script wait event (llSleep(), etc.)
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.
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pass down IScriptInstance instead.
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.
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match other scripts commands (and it's own short help text)
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A different approach to the patch in http://opensimulator.org/mantis/view.php?id=6462
that doesn't involve further forking of SmartThreadPool
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reset (as called by llResetOtherScript()).
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.
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OpenSimDefaults.ini to allow change of the wait time for an event to complete on script removal before aborting its thread
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
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individual IScriptInstances for debugging purposes.
Current, state changes and event fires can be logged for individual scripts.
See command help for more details.
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easier to extract and inspect the script's asset via "dump asset"
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"xengine status" console command. For debugging purposes.
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callers to lock and directly inspect the EventQueue
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processed.
For debug purposes - should later add options to allow different sorting or show only highest 10, etc.
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information and display in "show scripts" for debug purposes
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constructing a new CultureInfo separately
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every call use the single one set by Culture.SetCurrentCulture()
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.
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master.
This reverts commit dfac269032300872c4d0dc507f4f9062d102b0f4, reversing
changes made to 619c39e5144f15aca129d6d999bcc5c34133ee64.
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this for debugging purposes, rather than before it actually starts to do this.
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xengine to spit out some useful information and continue to save other script states
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instead.
This is more useful if compilation fails due to an uncatchable exception since we know what was being compiled.
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This is fired when all regions are ready or when at least one region becomes not ready.
Recently added EventManager.OnRegionReady becomes OnRegionReadyStatusChange to match OnLoginsEnabledStatusChange
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on a previously empty region.
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A better solution using the already present flags must be found.
This reverts commit 6d3ee8bb39d47ed7b32e8905fa0b2fc31c5a9f80.
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constructing fresh copies.
The encodings are thread-safe and already used in such a manner in other places.
This isn't done where Byte Order Mark output is suppressed, since Encoding.UTF8 is constructed to output the BOM.
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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.
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This currently only does a relatively crude check for a ScriptState node in the serialized xml
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second to finish normally before forcibly aborting.
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.
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errors also. May not be that good, but is not in use in AVN (i hope). Still safer to do a full shutdown and refire the region from a OS tool like a script, monit, etc etc
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XEngine if engine specified does not exist.
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.
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line of a script where the user was not trying to select a different script engine.
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).
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colon is found on the first line will always be the same as for the whole script.
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