private void RunSegments(Segment segment)
{
Thread segmentThread = new Thread(new ParameterizedThreadStart(StartSegment));
segmentThread.Start(segment);
lock (threads)
{
threads.Add(segmentThread);
}
}
private void CreateSegments()
{
try
{
CreateLocalFile();
}
catch
{
MessageBox.Show("创建本地文件失败!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
CalculatedSegment[] calculatedSegments;
//如果不支持流的定位，则只创建一个段
if (!serverFileInfo.AcceptRange)
{
calculatedSegments = new CalculatedSegment[] { new CalculatedSegment(0, serverFileInfo.FileSize) };
}
else
{
calculatedSegments = httpcalculator.GetSegments(segmentCount, serverFileInfo.FileSize);
}
lock (segments)
{
segments.Clear();
}
lock (threads)
{
threads.Clear();
}
for (int i = 0; i < calculatedSegments.Length; i++)
{
Segment segment = new Segment();
segment.Index = i;
segment.InitialPosition = calculatedSegments[i].StartPosition;
segment.StartPosition = calculatedSegments[i].StartPosition;
segment.EndPosition = calculatedSegments[i].EndPosition;
segment.State = SegmentState.Idle;
segments.Add(segment);
}
SetState(DownloadState.prepared);
OnSegmentsCreated();
StartSegments();
}
public SegmentEventArgs(Downloader download, Segment segment)
: base(download)
{
this.segment = segment;
}
protected virtual void OnSegmentStopped(Segment segment)
{
if (SegmentStopped != null)
{
SegmentStopped(this, new SegmentEventArgs(this,segment));
}
}
private void LoadDownloads(XmlDownloader[] downloads)
{
for (int i = 0; i < downloads.Length; i++)
{
List<Segment> segments = new List<Segment>();
for (int j = 0; j < downloads[i].Segments.Length; j++)
{
Segment segment = new Segment();
segment.Index = downloads[i].Segments[j].Index;
segment.InitialPosition = downloads[i].Segments[j].InitialPosition;
segment.StartPosition = downloads[i].Segments[j].StartPosition;
segment.EndPosition = downloads[i].Segments[j].EndPosition;
segments.Add(segment);
}
DownloadManager.Instance.Add(
downloads[i].URL,
downloads[i].LocalFilePath,
downloads[i].SegmentCount,
Settings.Default.IsRuntoStart,
segments,
downloads[i].CreatedTime);
}
}
