/// <summary> 获取下好的文件 返回null则需要等待 </summary>
public IBufferPlayEntity GetWaitCurrent(Predicate <IBufferPlayEntity> match, Action <bool, int, int> action)
{
var result = this._entitys.Find(match);
int now = this._entitys.FindIndex(match);
_current = result;
if (result.IsLoaded == 2)
{
return(result);
}
else
{
// Message：停止上一个获取任务
flag = false;
_semaphore.WaitOne();
flag = true;
var waitCache = _entitys.Skip(now).Take(this.Capacity).ToList();
while (!waitCache.TrueForAll(l => l.IsLoaded == 2))
{
if (!flag)
{
_semaphore.Release();
return(null);
}
Thread.Sleep(500);
action(false, waitCache.FindAll(l => l.IsLoaded == 2).Count, waitCache.Count);
}
action(true, waitCache.FindAll(l => l.IsLoaded == 2).Count, waitCache.Count);
_semaphore.Release();
return(result);
}
}
public BufferPlayEngine(List <IBufferPlayEntity> entitys)
{
_entitys = entitys;
_current = entitys.First();
}
