/// <summary>
/// Executes the specified action on a background thread, showing a wait dialog if it is available
/// </summary>
/// <param name="actionName">[Required] description of the action to show in the wait dialog</param>
/// <param name="action">[Required] action to run</param>
/// <param name="throwOnCancel">If specified, an OperationCanceledException is thrown if the operation is canceled</param>
/// <returns>True if the operation succeed and wasn't canceled</returns>
/// <exception cref="OperationCanceledException">Wait was canceled and 'throwOnCancel' is true</exception>
public static bool Wait(string actionName, bool throwOnCancel, Action action)
{
Task t = Task.Run(action);
DebugEngineHost.HostWaitLoop waiterImpl = null;
try
{
waiterImpl = new DebugEngineHost.HostWaitLoop(actionName);
}
catch (FileNotFoundException)
{
// Visual Studio is not installed on this box
}
if (waiterImpl != null)
{
using (ManualResetEvent completeEvent = new ManualResetEvent(false))
{
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
t.ContinueWith((System.Threading.Tasks.Task unused) => completeEvent.Set(), TaskContinuationOptions.ExecuteSynchronously);
try
{
waiterImpl.Wait(completeEvent, cancellationTokenSource);
}
catch (OperationCanceledException) // VS Wait dialog implementation always throws on cancel
{
if (throwOnCancel)
{
throw;
}
return(false);
}
if (cancellationTokenSource.IsCancellationRequested)
{
if (throwOnCancel)
{
throw new OperationCanceledException();
}
return(false);
}
if (t.IsFaulted)
{
throw t.Exception.InnerException;
}
}
}
return(true);
}
/// <summary>
/// Executes the specified action on a background thread, showing a wait dialog if it is available
/// </summary>
/// <param name="actionName">[Required] description of the action to show in the wait dialog</param>
/// <param name="action">[Required] action to run</param>
/// <param name="throwOnCancel">If specified, an OperationCanceledException is thrown if the operation is canceled</param>
/// <returns>True if the operation succeed and wasn't canceled</returns>
/// <exception cref="OperationCanceledException">Wait was canceled and 'throwOnCancel' is true</exception>
public static bool Wait(string actionName, bool throwOnCancel, Action action)
{
Task t = Task.Run(action);
DebugEngineHost.HostWaitLoop waiterImpl = null;
try
{
waiterImpl = new DebugEngineHost.HostWaitLoop(actionName);
}
catch (FileNotFoundException)
{
// Visual Studio is not installed on this box
}
if (waiterImpl != null)
{
using (ManualResetEvent completeEvent = new ManualResetEvent(false))
{
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
t.ContinueWith((System.Threading.Tasks.Task unused) => completeEvent.Set(), TaskContinuationOptions.ExecuteSynchronously);
try
{
waiterImpl.Wait(completeEvent, cancellationTokenSource);
}
catch (OperationCanceledException) // VS Wait dialog implementation always throws on cancel
{
if (throwOnCancel)
{
throw;
}
return false;
}
if (cancellationTokenSource.IsCancellationRequested)
{
if (throwOnCancel)
{
throw new OperationCanceledException();
}
return false;
}
if (t.IsFaulted)
{
throw t.Exception.InnerException;
}
}
}
return true;
}
