/// <summary>
/// Executes the specified <paramref name="asyncFunc"/> on the specified <paramref name="synchronizationContext"/> and returns the result
/// </summary>
/// <typeparam name="TResult">The return type of <paramref name="asyncFunc"/></typeparam>
/// <param name="synchronizationContext">The <see cref="SynchronizationContext"/></param>
/// <param name="asyncFunc">The <see cref="Func{Task}"/> that returns a value</param>
/// <returns>The result of <paramref name="asyncFunc"/></returns>
public static async Task <TResult> ExecuteAsync <TResult>(this SynchronizationContext synchronizationContext, Func <Task <TResult> > asyncFunc)
{
if (synchronizationContext == null || SynchronizationContext.Current == synchronizationContext)
{
return(await asyncFunc().ConfigureAwait(false));
}
var completion = new TaskCompletionSource <TResult>();
synchronizationContext.Post(async state => await completion.AttemptSetResultAsync(asyncFunc).ConfigureAwait(false), null);
return(await completion.Task.ConfigureAwait(false));
}
/// <summary>
/// Executes the specified <paramref name="asyncAction"/> on the specified <paramref name="synchronizationContext"/>
/// </summary>
/// <param name="synchronizationContext">The <see cref="SynchronizationContext"/></param>
/// <param name="asyncAction">The <see cref="Func{Task}"/></param>
public static async Task ExecuteAsync(this SynchronizationContext synchronizationContext, Func <Task> asyncAction)
{
if (synchronizationContext == null || SynchronizationContext.Current == synchronizationContext)
{
await asyncAction().ConfigureAwait(false);
return;
}
var completion = new TaskCompletionSource <object>();
synchronizationContext.Post(async state => await completion.AttemptSetResultAsync(asyncAction).ConfigureAwait(false), null);
await completion.Task.ConfigureAwait(false);
}
