public void InvokeCallback(object sender, object args)
{
if (IsBusy)
{
return;
}
if (IsBlocking)
{
IsBusy = true;
}
if (Source != null && sender != Source)
{
IsBusy = false;
return;
}
var target = DelegateSource.Target;
if (target == null)
{
IsBusy = false;
return; // Collected
}
var parameters = MethodInfo.GetParameters().Length == 1
? new[] { sender }
: new[] { sender, args };
if (MethodInfo.ReturnType != typeof(Task))
{
try
{
MethodInfo.Invoke(MethodInfo.IsStatic ? null : target, parameters);
}
catch (Exception ex)
{
SafeExecutionHelpers.HandleException(ex, OnException);
}
finally
{
IsBusy = false;
}
}
else
{
Task.Run(() => ((Task)MethodInfo
.Invoke(MethodInfo.IsStatic
? null
: target
, parameters))
.SafeContinueWith(OnException)
.ContinueWith(t => IsBusy = false));
}
}
public Task SafeContinueWith <TException>(Task task, Action <TException> onException, TaskScheduler scheduler = null) where TException : Exception
{
task.ContinueWith(
t => SafeExecutionHelpers
.HandleException <TException>(t.Exception.InnerException, onException)
, CancellationToken.None
, TaskContinuationOptions.OnlyOnFaulted
, scheduler ?? TaskScheduler.Default);
return(task);
}
public void SafeInvoke <TException>(Action action, Action <TException> onException)
where TException : Exception
{
try
{
action();
}
catch (TException ex) when(SafeExecutionHelpers.DefaultExceptionHandler != null || onException != null)
{
SafeExecutionHelpers.HandleException(ex, onException);
}
}
public void SafeInvoke <TException>(
Action <object> action,
object parameter,
Action <TException> onException)
where TException : Exception
{
try
{
action(parameter);
}
catch (TException ex)
{
SafeExecutionHelpers.HandleException(ex, onException);
}
}