public void StartThreadWorker()
{
Thread thd = XMREngine.StartMyThread(RunScriptThread, "xmrengine script", ThreadPriority.BelowNormal);
lock (m_WakeUpLock) {
m_RunningInstances.Add(thd.ManagedThreadId, null);
}
}
private void InitScriptApi(XMREngine engine, string api, IScriptApi scriptApi)
{
/*
* Set up m_ApiManager_<APINAME> = instance pointer.
*/
engine.m_XMRInstanceApiCtxFieldInfos[api].SetValue(this, scriptApi);
/*
* Initialize the API instance.
*/
scriptApi.Initialize(m_Engine, m_Part, m_Item);
this.InitApi(api, scriptApi);
}
/**
* @brief Thread that runs the scripts.
*
* There are NUMSCRIPTHREADWKRS of these.
* Each sits in a loop checking the Start and Yield queues for
* a script to run and calls the script as a microthread.
*/
private void RunScriptThread()
{
int tid = System.Threading.Thread.CurrentThread.ManagedThreadId;
ThreadStart thunk;
XMRInstance inst;
m_ScriptThreadTID = tid;
while (!m_Exiting)
{
XMREngine.UpdateMyThread();
lock (m_WakeUpLock) {
/*
* Maybe there are some scripts waiting to be migrated in or out.
*/
thunk = null;
if (m_ThunkQueue.Count > 0)
{
thunk = m_ThunkQueue.Dequeue();
}
/*
* Handle 'xmr resume/suspend' commands.
*/
else if (m_SuspendScriptThreadFlag && !m_Exiting)
{
Monitor.Wait(m_WakeUpLock, Watchdog.DEFAULT_WATCHDOG_TIMEOUT_MS / 2);
XMREngine.UpdateMyThread();
continue;
}
}
if (thunk != null)
{
thunk();
continue;
}
if (m_StartProcessing)
{
/*
* If event just queued to any idle scripts
* start them right away. But only start so
* many so we can make some progress on yield
* queue.
*/
int numStarts;
for (numStarts = 5; --numStarts >= 0;)
{
lock (m_StartQueue) {
inst = m_StartQueue.RemoveHead();
}
if (inst == null)
{
break;
}
if (inst.m_IState != XMRInstState.ONSTARTQ)
{
throw new Exception("bad state");
}
RunInstance(inst, tid);
}
/*
* If there is something to run, run it
* then rescan from the beginning in case
* a lot of things have changed meanwhile.
*
* These are considered lower priority than
* m_StartQueue as they have been taking at
* least one quantum of CPU time and event
* handlers are supposed to be quick.
*/
lock (m_YieldQueue) {
inst = m_YieldQueue.RemoveHead();
}
if (inst != null)
{
if (inst.m_IState != XMRInstState.ONYIELDQ)
{
throw new Exception("bad state");
}
RunInstance(inst, tid);
numStarts = -1;
}
/*
* If we left something dangling in the m_StartQueue or m_YieldQueue, go back to check it.
*/
if (numStarts < 0)
{
continue;
}
}
/*
* Nothing to do, sleep.
*/
lock (m_WakeUpLock) {
if (!m_WakeUpThis && (m_WakeUpOne <= 0) && !m_Exiting)
{
Monitor.Wait(m_WakeUpLock, Watchdog.DEFAULT_WATCHDOG_TIMEOUT_MS / 2);
}
m_WakeUpThis = false;
if ((m_WakeUpOne > 0) && (--m_WakeUpOne > 0))
{
Monitor.Pulse(m_WakeUpLock);
}
}
}
lock (m_WakeUpLock) {
m_RunningInstances.Remove(tid);
}
XMREngine.MyThreadExiting();
}
/****************************************************************************\
* The only method of interest to outside this module is the Initializer. *
* *
* The rest of this module contains support routines for the Initializer. *
\****************************************************************************/
/**
* @brief Initializer, loads script in memory and all ready for running.
* @param engine = XMREngine instance this is part of
* @param scriptBasePath = directory name where files are
* @param stackSize = number of bytes to allocate for stacks
* @param errors = return compiler errors in this array
* @param forceRecomp = force recompile
* Throws exception if any error, so it was successful if it returns.
*/
public void Initialize(XMREngine engine, string scriptBasePath,
int stackSize, int heapSize, ArrayList errors)
{
if (stackSize < 16384)
{
stackSize = 16384;
}
if (heapSize < 16384)
{
heapSize = 16384;
}
/*
* Save all call parameters in instance vars for easy access.
*/
m_Engine = engine;
m_ScriptBasePath = scriptBasePath;
m_StackSize = stackSize;
m_StackLeft = stackSize;
m_HeapSize = heapSize;
m_CompilerErrors = errors;
m_StateFileName = GetStateFileName(scriptBasePath, m_ItemID);
/*
* Not in any XMRInstQueue.
*/
m_NextInst = this;
m_PrevInst = this;
/*
* Set up list of API calls it has available.
* This also gets the API modules ready to accept setup data, such as
* active listeners being restored.
*/
IScriptApi scriptApi;
ApiManager am = new ApiManager();
foreach (string api in am.GetApis())
{
/*
* Instantiate the API for this script instance.
*/
if (api != "LSL")
{
scriptApi = am.CreateApi(api);
}
else
{
scriptApi = m_XMRLSLApi = new XMRLSL_Api();
}
/*
* Connect it up to the instance.
*/
InitScriptApi(engine, api, scriptApi);
}
m_XMRLSLApi.InitXMRLSLApi(this);
/*
* Get object loaded, compiling script and reading .state file as
* necessary to restore the state.
*/
suspendOnCheckRunHold = true;
InstantiateScript();
m_SourceCode = null;
if (m_ObjCode == null)
{
throw new ArgumentNullException("m_ObjCode");
}
if (m_ObjCode.scriptEventHandlerTable == null)
{
throw new ArgumentNullException("m_ObjCode.scriptEventHandlerTable");
}
suspendOnCheckRunHold = false;
suspendOnCheckRunTemp = false;
/*
* Declare which events the script's current state can handle.
*/
int eventMask = GetStateEventFlags(stateCode);
m_Part.SetScriptEvents(m_ItemID, eventMask);
}
