/// <summary>
/// 异步会创建线程
/// </summary>
/// <param name="info"></param>
public void DownloadAsync(DownloadUnit info)
{
if (info == null)
{
return;
}
var fileMac = new DownloadFileMac(info);
lock (mlock)
{
readyList.Enqueue(fileMac);
}
if (runningList.Count < MAX_THREAD_COUNT)
{
var thread = new Thread(ThreadLoop);
lock (mlock)
{
runningList.Add(thread, null);
}
thread.Start();
}
}
/// <summary>
/// 同步不会调用回调函数，返回是否成功
/// </summary>
/// <param name="info"></param>
/// <returns></returns>
public bool DownloadSync(DownloadUnit info)
{
if (info == null)
{
return(false);
}
var mac = new DownloadFileMac(info);
try // 同步下载尝试三次
{
mac.Run();
if (mac.State == DownloadMacState.Complete)
{
return(true);
}
mac.Run();
if (mac.State == DownloadMacState.Complete)
{
return(true);
}
mac.Run();
if (mac.State == DownloadMacState.Complete)
{
return(true);
}
}
catch (Exception ex)
{
Debug.Log("Error DownloadSync " + mac.State + " " + mac.DownUnit.Name + " " + ex.Message + " " + ex.StackTrace);
}
return(false);
}
private void ThreadLoop()
{
while (true)
{
DownloadFileMac mac = null;
lock (mlock)
{
if (readyList.Count > 0)
{
mac = readyList.Dequeue();
runningList[Thread.CurrentThread] = mac;
if (mac != null && mac.DownUnit.IsDelete) // 已经销毁，不提取运行，直接删除
{
runningList[Thread.CurrentThread] = null;
continue;
}
}
}
// 已经没有需要下载的了
if (mac == null)
{
break;
}
mac.Run();
if (mac.State == DownloadMacState.Complete)
{
lock (mlock)
{
completeList.Add(mac.DownUnit);
runningList[Thread.CurrentThread] = null;
}
}
else if (mac.State == DownloadMacState.Error)
{
lock (mlock)
{
readyList.Enqueue(mac);
// 防止失败频繁回调，只在特定次数回调
if (mac.IsNeedErrorCall())
{
errorList.Add(mac);
}
}
break;
}
else
{
//ThreadDebugLog.Log("Error DownloadMacState " + mac.State + " " + mac.DownUnit.name);
break;
}
}
}
