public Task DownloadFileTaskAsync()
{
var tcs = new TaskCompletionSource <bool>();
var downTaskInfo = new Xl.DownTaskInfo();
new Timer(self =>
{
if (DownloadInfo.Status == DownStatus.PAUSE)
{
Xl.XL_StopTask(_taskIntPtr);
}
if (DownloadInfo.Status == DownStatus.CANCLE)
{
Xl.XL_StopTask(_taskIntPtr);
Xl.XL_DeleteTask(_taskIntPtr);
((IDisposable)self).Dispose();
tcs.TrySetResult(true);
return;
}
Xl.XL_QueryTaskInfoEx(_taskIntPtr, downTaskInfo);
//var isError = false;
DownloadInfo.TotalBytesToDownload = downTaskInfo.nTotalSize;
DownloadInfo.MegaBytesDownloaded = downTaskInfo.nTotalDownload;
DownloadInfo.DownloadSpeed = downTaskInfo.nSpeed;
switch (downTaskInfo.stat)
{
case Xl.DownTaskStatus.TscDownload:
DownloadInfo.Progress = Convert.ToInt32((int)(downTaskInfo.fPercent * 100));
if (DownloadInfo.Status != DownStatus.PAUSE)
{
DownloadInfo.Status = DownStatus.RUNNING;
}
break;
case Xl.DownTaskStatus.TscComplete:
((IDisposable)self).Dispose();
DownloadInfo.Progress = 100;
var oriPath = Path.Combine(Environment.CurrentDirectory, "ErrorSongs", _stParam.szFilename);
if (File.Exists(_fileName))
{
var newFileName = _fileName.Replace(CommonHelper.GetFormat(_fileName),
new Random(DateTime.Now.Millisecond).Next(0, 1000) + CommonHelper.GetFormat(_fileName));
File.Move(_fileName, newFileName);
}
FileInfo fileInfo = new FileInfo(_fileName);
if (!Directory.Exists(fileInfo.DirectoryName))
{
Directory.CreateDirectory(fileInfo.DirectoryName);
}
File.Move(oriPath, _fileName);
tcs.TrySetResult(true);
DownloadInfo.Status = DownStatus.SUCCESS;
DownloadInfo.Progress = 100;
break;
case Xl.DownTaskStatus.TscStartpending:
DownloadInfo.Progress = 0;
if (DownloadInfo.Status != DownStatus.PAUSE)
{
DownloadInfo.Status = DownStatus.RUNNING;
}
break;
case Xl.DownTaskStatus.TscPause:
if (DownloadInfo.Status == DownStatus.RUNNING)
{
Xl.XL_StartTask(_taskIntPtr);
}
break;
default:
DownloadInfo.Status = DownStatus.ERROR;
//isError = true;
((IDisposable)self).Dispose();
tcs.TrySetResult(true);
break;
}
//XunleiProgressChanged?.Invoke(null, new ProgressChangedEventArgs(_progress, isError));
}).Change(0, 500);
return(tcs.Task);
}