public void Add(int count)
{
lock (this)
{
if (count < 0)
{
throw new ArgumentOutOfRangeException();
}
if (CurrentCount > 0)
{
CurrentCount += count;
}
else
{
CurrentCount = count;
#if SNAPPY_ASYNC
Available.SetResult(null);
#else
Available.Set();
#endif
}
}
}
