private bool TrySetOperationInternalWithProgress(AsyncProgressOperation op, string text, CancellationTokenSource canTokenSource)
{
var waitLoop = new HostWaitLoop(text);
lock (_eventLock)
{
if (_isClosed)
{
throw new ObjectDisposedException("WorkerThread");
}
if (_runningOp == null)
{
_runningOpCompleteEvent.Reset();
OperationDescriptor runningOp = new OperationDescriptor(new AsyncOperation(() => { return(op(waitLoop)); }));
_runningOp = runningOp;
_opSet.Set();
waitLoop.Wait(_runningOpCompleteEvent, canTokenSource);
Debug.Assert(runningOp.IsComplete, "Why isn't the running op complete?");
if (runningOp.ExceptionDispatchInfo != null)
{
runningOp.ExceptionDispatchInfo.Throw();
}
return(true);
}
}
return(false);
}
internal void SetOperationInternalWithProgress(AsyncProgressOperation op, string text, CancellationTokenSource canTokenSource)
{
// If this is called on the Worker thread it will deadlock
Debug.Assert(!IsPollThread());
while (true)
{
if (_isClosed)
{
throw new ObjectDisposedException("WorkerThread");
}
_runningOpCompleteEvent.WaitOne();
if (TrySetOperationInternalWithProgress(op, text, canTokenSource))
{
return;
}
}
}
public void RunOperation(string text, CancellationTokenSource canTokenSource, AsyncProgressOperation op)
{
if (op == null)
{
throw new ArgumentNullException();
}
SetOperationInternalWithProgress(op, text, canTokenSource);
}
private bool TrySetOperationInternalWithProgress(AsyncProgressOperation op, string text, CancellationTokenSource canTokenSource)
{
var waitLoop = new HostWaitLoop(text);
lock (_eventLock)
{
if (_isClosed)
throw new ObjectDisposedException("WorkerThread");
if (_runningOp == null)
{
_runningOpCompleteEvent.Reset();
OperationDescriptor runningOp = new OperationDescriptor(new AsyncOperation(() => { return op(waitLoop); }));
_runningOp = runningOp;
_opSet.Set();
waitLoop.Wait(_runningOpCompleteEvent, canTokenSource);
Debug.Assert(runningOp.IsComplete, "Why isn't the running op complete?");
if (runningOp.ExceptionDispatchInfo != null)
{
runningOp.ExceptionDispatchInfo.Throw();
}
return true;
}
}
return false;
}
internal void SetOperationInternalWithProgress(AsyncProgressOperation op, string text, CancellationTokenSource canTokenSource)
{
// If this is called on the Worker thread it will deadlock
Debug.Assert(!IsPollThread());
while (true)
{
if (_isClosed)
throw new ObjectDisposedException("WorkerThread");
_runningOpCompleteEvent.WaitOne();
if (TrySetOperationInternalWithProgress(op, text, canTokenSource))
{
return;
}
}
}
public void RunOperation(string text, CancellationTokenSource canTokenSource, AsyncProgressOperation op)
{
if (op == null)
throw new ArgumentNullException();
SetOperationInternalWithProgress(op, text, canTokenSource);
}
