internal bool RunSingleEventLoopIteration()
{
if (this.IsEventLoopAlive)
{
EventLoopInvocation invocation = PopItemFromQueue();
if (invocation != null)
{
RunEventLoopIteration(invocation);
return(true);
}
}
return(false);
}
private void AddItemToQueue(EventLoopInvocation invocation)
{
lock (this.state)
{
if (!this.state.IsStillRunning)
{
return;
}
this.state.Queue.Enqueue(invocation);
}
lock (this.wakeupTaskMutex)
{
if (this.wakeupTask != null) // Root execution context starting will not have a wakup task to trigger
{
this.wakeupTask.TrySetResult(true);
}
}
}
private void RunEventLoopIteration(EventLoopInvocation invocation)
{
// Debugger.INSTANCE.FlushMessageQueue();
if (invocation == null)
{
return;
}
InterpreterResult result;
if (invocation.StartFromBeginning)
{
result = CrayonWrapper.startVm(vm);
}
else if (invocation.FunctionPointer != null)
{
Value[] args = invocation.FunctionPointerArgs;
if (args == null)
{
object[] nativeArgs = invocation.FunctionPointerNativeArgs;
args = new Value[nativeArgs.Length];
for (int i = 0; i < args.Length; ++i)
{
args[i] = ConvertNativeArg(nativeArgs[i]);
}
}
result = CrayonWrapper.runInterpreterWithFunctionPointer(vm, invocation.FunctionPointer, args);
}
else
{
result = CrayonWrapper.runInterpreter(vm, invocation.ExecutionContextId);
}
switch (result.status)
{
case 1: // execution context is FINISHED
if (result.isRootContext)
{
this.KillEventLoop();
}
break;
case 2: // SUSPEND
// do nothing.
break;
case 3: // FATAL ERROR
if (result.isRootContext)
{
this.KillEventLoop();
}
break;
case 5: // RE-INVOKE, possibly with a delay
ResumeExecutionAfterDelay(result.executionContextId, result.reinvokeDelay);
break;
case 7: // BREAKPOINT
// do nothing
break;
}
if (!this.IsEventLoopAlive && this.completionCallback != null)
{
this.completionCallback();
this.completionCallback = null;
}
}
