internal void Suspend()
{
ScriptJob job = CurrentJob;
job.suspended = true;
job.signal.Set();
job.signal2.WaitOne();
}
internal void Suspend()
{
ScriptJob job = CurrentJob;
job.suspended = true;
job.dispatcherSignal.Set();
job.workerSignal.WaitOne();
}
internal T Invoke <T>(Func <object> func)
{
ScriptJob job = _executionQueue.Peek();
job.invokedOperation = func;
job.signal.Set();
job.signal2.WaitOne();
return((T)job.invokeResult);
}
internal T Invoke <T>(Func <T> func)
{
ScriptJob job = _executionQueue.Peek();
job.invokedOperation = func;
job.dispatcherSignal.Set();
job.workerSignal.WaitOne();
return((T)job.invokeResult);
}
internal void Invoke(Action action)
{
ScriptJob job = CurrentJob;
job.invokedOperation = () =>
{
action();
return(null);
};
job.signal.Set();
job.signal2.WaitOne();
}
private void StartExecution(ScriptSource src, ScriptScope scope, Action <ExecutionResult> continuation)
{
var job = new ScriptJob {
source = src, scope = scope, continuation = continuation
};
_executionQueue.Enqueue(job);
if (_executionQueue.Count == 1) // Other scripts may be hung. Scripts are executed in order.
{
ProcessExecutionQueue();
}
}
internal void Invoke(Action action)
{
ScriptJob job = CurrentJob;
job.invokedOperation = action;
//job.invokedOperation = () =>
// {
// action();
// return null;
// };
job.dispatcherSignal.Set();
job.workerSignal.WaitOne();
}
private void ProcessExecutionQueue()
{
do
{
ScriptJob job = _executionQueue.Peek();
Program.GameMess.GameDebug(job.source.GetCode());
// Because some scripts have to be suspended during asynchronous operations (e.g. shuffle, reveal or random),
// their evaluation is done on another thread.
// The process still looks synchronous (no concurrency is allowed when manipulating the game model),
// which is why a ManualResetEvent is used to synchronise the work of both threads
if (job.suspended)
{
job.suspended = false;
job.workerSignal.Set();
}
else
{
job.dispatcherSignal = new AutoResetEvent(false);
job.workerSignal = new AutoResetEvent(false);
ThreadPool.QueueUserWorkItem(Execute, job);
}
job.dispatcherSignal.WaitOne();
while (job.invokedOperation != null)
{
using (new Mute(job.muted))
job.invokeResult = job.invokedOperation.DynamicInvoke();
job.invokedOperation = null;
job.workerSignal.Set();
job.dispatcherSignal.WaitOne();
}
if (job.result != null && !String.IsNullOrWhiteSpace(job.result.Error))
{
Program.GameMess.Warning("{0}", job.result.Error.Trim());
}
if (job.suspended)
{
return;
}
job.dispatcherSignal.Dispose();
job.workerSignal.Dispose();
_executionQueue.Dequeue();
if (job.continuation != null)
{
job.continuation(job.result);
}
} while (_executionQueue.Count > 0);
}
public void Mute(bool muted)
{
ScriptJob job = _engine.CurrentJob;
_engine.CurrentJob.muted = muted ? job.id : 0;
}
private void StartExecution(ScriptSource src, ScriptScope scope, Action <ExecutionResult> continuation)
{
var job = new ScriptJob(src, scope, continuation);
StartExecution(job);
}
