public AsyncLock()
{
_threadId = Environment.CurrentManagedThreadId;
_semaphore = new AsyncSemaphore( 1 );
_releaser = Task.FromResult( new Releaser( this ) );
_reentrantReleaser = Task.FromResult( new Releaser() );
}
public AsyncLock()
{
_semaphore = new AsyncSemaphore(1);
_releaser = TaskEx.FromResult(new Releaser(this));
}