/// <summary>
/// Executes an async Func<T> synchronously and returns the result
/// - use when you really cannot use async/await
/// - NEVER use Task.Wait() or Task.Result if the underlying code uses async/await
/// </summary>
/// <typeparam name="T">Return Type</typeparam>
/// <param name="task">Task<T> method to execute</param>
/// <returns></returns>
public static T RunSync <T>(Func <Task <T> > task)
{
var oldContext = SynchronizationContext.Current;
var context = new ExclusiveSynchronizationContext();
SynchronizationContext.SetSynchronizationContext(context);
var ret = default(T);
context.Post(async _ =>
{
try
{
ret = await task();
}
catch (Exception e)
{
context.InnerException = e;
throw;
}
finally
{
context.EndMessageLoop();
}
}, null);
context.BeginMessageLoop();
SynchronizationContext.SetSynchronizationContext(oldContext);
return(ret);
}
/// <summary>
/// Executes an async Action synchronously
/// - use when you really cannot use async/await
/// - NEVER use Task.Wait() or Task.Result if the underlying code uses async/await
/// </summary>
/// <param name="task">Action to execute</param>
public static void RunSync(Func <Task> task)
{
var oldContext = SynchronizationContext.Current;
var context = new ExclusiveSynchronizationContext();
SynchronizationContext.SetSynchronizationContext(context);
context.Post(async _ =>
{
try
{
await task();
}
catch (Exception e)
{
context.InnerException = e;
throw;
}
finally
{
context.EndMessageLoop();
}
}, null);
context.BeginMessageLoop();
SynchronizationContext.SetSynchronizationContext(oldContext);
}