static Task P_BeforeDisposeAsync(P_Lifecycle lifecycle, Action continuation)
{
try {
if (lifecycle is null)
{
throw new ArgumentNullException(paramName: nameof(lifecycle));
}
//
if (lifecycle.Disposing || lifecycle.IsDisposed)
{
return(TaskUtilities.FromVoidResult());
}
else
{
return(doDisposeAsync());
}
}
catch (Exception exception) {
return(TaskUtilities.FromError(error: exception));
}
//
async Task doDisposeAsync()
{
lifecycle.SetDisposeRequested();
var acquisition = lifecycle._acquisition;
if (!(acquisition is null))
{
await acquisition.ReleaseAsync().ConfigureAwait(false);
}
continuation?.Invoke();
}
}
public static Task DisposeAsync(P_Lifecycle lifecycle)
{
try {
if (lifecycle is null)
{
throw new ArgumentNullException(paramName: nameof(lifecycle));
}
//
if (lifecycle.Disposing || lifecycle.IsDisposed)
{
return(TaskUtilities.FromVoidResult());
}
else
{
return(P_BeforeDisposeAsync(lifecycle: lifecycle, continuation: lifecycle.Dispose));
}
}
catch (Exception exception) {
return(TaskUtilities.FromError(error: exception));
}
}
