//一次清除所有没有引用的bundle
public void DeleteNoRefBundles()
{
for (int i = 0; i < waitingDelBundles.Count; ++i)
{
BundleHolder one = waitingDelBundles[i];
one.Unload();
}
waitingDelBundles.Clear();
}
//尝试少量的删除
public IEnumerator TryDelete()
{
yield return(null);
float curTime = Time.realtimeSinceStartup;
while (waitingDelBundles.Count > ZERO_REF_COUNT)
{
BundleHolder one = waitingDelBundles[0];
if (one.RefCount == 0 && curTime - one.NoRefTime > DEL_TIME) //它依赖的holder的时间肯定比它早
{
one.Unload();
waitingDelBundles.RemoveAt(0);
}
else
{
break; //排在前面的时间最久
}
}
}
