private void Thread_Failed(object sender, ThreadExitedArgs e)
{
bool isRaiseFailed = false;
lock (this._syncRoot)
{
if (e.WorkID != this._workID)
{
return; // 这次操作已经过期
}
if (this._status != DownloaderStatuses.Downloading)
{
return; // 只有Downloading状态才可能变为Failed状态
}
this.RefreshWorkID();
this._status = DownloaderStatuses.Failed;
this._progressTimer.Dispose();
this._progressTimer = null;
this.ClearThread();
this.CacheConfig();// 保存文件配置以便以后继续下载
this._sourceProvider = null;
this._writer.Dispose();
this._writer = null;
isRaiseFailed = true;
}// lock
if (isRaiseFailed)
{
this.OnFailed();
}
}
private void OnCompleted(ThreadExitedArgs e)
{
EventHandler <ThreadExitedArgs> handler = this.Completed;
if (handler != null)
{
handler(this, e);
}
}
private void Thread_Completed(object sender, ThreadExitedArgs e)
{
bool isRaiseCompleted = false;
lock (this._syncRoot)
{
if (e.WorkID != this._workID)
{
return; // 这次操作已经过期
}
if (this._status != DownloaderStatuses.Downloading)
{
return; // 只有Downloading状态才可能变为Failed状态
}
if (!this._writer.IsCompleted())
{
return; // 文件下载还没有完成
}
this.RefreshWorkID();
this._status = DownloaderStatuses.Completed;
this._progressTimer.Dispose();
this._progressTimer = null;
this.ClearThread();
this._sourceProvider = null;
this._writer.Dispose();
this._writer = null;
if (File.Exists(this._savePath))
{
File.Delete(this._savePath);
}
File.Move(this._tmpPath, this._savePath);
if (File.Exists(this._configPath))
{
File.Delete(this._configPath);
}
isRaiseCompleted = true;
}// lock
if (isRaiseCompleted)
{
this.OnCompleted();
}
}