public void AsyncDownloadList(List <string> list, string remoteDir, string localDir, Action <DownloadTask> onFinish, List <string> exts = null)
{
lock (_pendingTasks)
{
int count = list.Count;
string url;
for (int i = 0; i < count; ++i)
{
url = list[i];
DownloadTask task = new DownloadTask();
task.file = url;
task.storagePath = CombineUrl(localDir, url);
task.url = CombineUrl(remoteDir, url);
task.onFinish = onFinish;
if (!_pendingTasks.Contains(task))
{
_pendingTasks.Enqueue(task);
}
DownloadFileTransferInfo info = _transferMgr.GetDownloadFileInfo(task.file);
task.md5 = info.md5;
Debug.Log("<color='#ff0000'>[正在下载文件: " + task.url + "</color>");
}
if (_downloadThread.isWaitting)
{
_downloadThread.Notify();
}
}
}
/// <summary>
/// 断点续传下载
/// </summary>
/// <param name="task"></param>
private void DownloadFromBreakPoint(DownloadTask task)
{
try
{
Uri uri = new Uri(task.url);
_currentTaskFileName = task.file;
// Debug.Log("Download1");
//HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
//// Debug.Log("Download2");
//request.Timeout = TIME_OUT;
//request.ReadWriteTimeout = TIME_OUT;
//HttpWebResponse response = (HttpWebResponse)request.GetResponse();
//// Debug.Log("Download3");
//long totalLength = response.ContentLength;
//response.Close();
//request.Abort();
//Debug.LogWarning(totalLength);
DownloadFileTransferInfo dfi = _transferMgr.GetDownloadFileInfo(_currentTaskFileName);
long totalLength = dfi.size;
long receivedLength = 0L;
long toDownloadLength = totalLength;
if (File.Exists(task.storagePath))
{
//FileInfo fileinfo = new FileInfo(tempFileName);
//if (fileinfo.Exists)
//{
// receivedLength = fileinfo.Length;
// toDownloadLength = totalLength - receivedLength;
//}
using (FileStream fileStream = new FileStream(task.storagePath, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite))
{
receivedLength = fileStream.Length;
toDownloadLength = totalLength - receivedLength;
fileStream.Close();
}
if (receivedLength != dfi.receivedSize)
{
CLogger.Log(string.Format("DownloadThread::DownloadFromBreakPoint() - break point save receive size is wrong for file[{0}], saveSize={1}, fileSize={2}", _currentTaskFileName, dfi.receivedSize, receivedLength));
}
}
task.fileLength = totalLength;
task.receivedLength = receivedLength;
_currentTaskTotalBytes = totalLength;
_currentTaskReceivedBytes = receivedLength;
bool transferOkay = true;
if (toDownloadLength > 0L)
{
CLogger.Log("DownloadThread::DownloadFromBreakPoint() - start http download, The request url is [" + uri + "] with range [" + receivedLength + "," + totalLength + "]");
HttpWebRequest request2 = (HttpWebRequest)WebRequest.Create(uri);
request2.Timeout = kTimeOut;
request2.KeepAlive = true;
request2.ReadWriteTimeout = kTimeOut;
request2.AddRange((int)receivedLength, (int)totalLength);
HttpWebResponse response2 = (HttpWebResponse)request2.GetResponse();
transferOkay = this.ReadBytesFromResponse(task, response2);
response2.Close();
request2.Abort();
}
if (transferOkay)
{
this.OnDownloadFinished(task, null);
}
}
catch (Exception ex)
{
CLogger.LogError("DownloadThread::DownloadFromBreakPoint() - ex: " + ex.Message + ",stackTrack:" + ex.StackTrace);
this.OnDownloadFinished(task, ex);
}
}