public static LifetimeDefinition Define(OuterLifetime lifetime, [CanBeNull] string id = null, [CanBeNull][InstantHandle] Action <LifetimeDefinition, Lifetime> atomicAction = null)
{
lifetime.AssertNotNull();
// Fallback to defaults
if (String.IsNullOrEmpty(id))
{
id = LifetimeDefinition.AnonymousLifetimeId;
}
// var nested = new LifetimeDefinition(id, 0, logger ?? Log.Root);
var nested = new LifetimeDefinition {
Id = id
} /*{ Logger = logger ?? Log.Root }*/;
try
{
// Atomic init on the new lifetime
atomicAction?.Invoke(nested, nested.Lifetime);
// Attach as nested to the parent lifetime
// if(!nested.IsTerminated) // Might have been terminated by FAtomic
lifetime.Def.Attach(nested); // Pass True: might be terminated async on another thread between our check and AttachNested body (example: Queue from another thread)
}
catch
{
nested.Terminate();
throw;
}
return(nested);
}
/// <summary>
/// <para>Scopes your code in <paramref name="action" /> with a lifetime that is terminated automatically when <paramref name="action" /> completes execution, or when its execution is aborted by an exception.</para>
/// <para>Analogous to the <c>using</c> statement of the C# language on everything that is added to the lifetime.</para>
/// </summary>
/// <param name="parent">A parent lifetime which limits the lifetime given to your action, and migth terminate it before the action ends.</param>
/// <param name="action">The code to execute with a temporary lifetime.</param>
public static async Task <T> UsingAsync <T>(OuterLifetime parent, [NotNull][InstantHandle] Func <Lifetime, Task <T> > action)
{
if (action == null)
{
throw new ArgumentNullException(nameof(action));
}
using (var def = new LifetimeDefinition())
{
parent.Def.Attach(def);
return(await action(def.Lifetime));
}
}
