public static Task <IDisposable> CreateAsync(MyAsyncLock host, int millisecondTimeout)
{
var instance = new MyLockInstance(host);
lock (host)
{
host._locks.Add(instance);
// If there aren't any ahead of this
if (host._locks.Count == 1)
{
// Just start it immediately
return(Task.FromResult <IDisposable>(instance));
}
// Otherwise, we need to set up a completion source
// which will be triggered after the one before it completes
instance._startCompletionSource = new TaskCompletionSource <IDisposable>();
if (millisecondTimeout != int.MaxValue)
{
instance.ConfigureTimeout(millisecondTimeout);
}
return(instance._startCompletionSource.Task);
}
}
public MyLockInstance(MyAsyncLock host)
{
_host = host;
}