private static void LoadPersistedObjects(DownloadItem[] 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 seg = new Segment();
seg.Index = downloads[i].Segments[j].Index;
seg.InitialStartPosition = downloads[i].Segments[j].InitialStartPositon;
seg.StartPosition = downloads[i].Segments[j].StartPositon;
seg.EndPosition = downloads[i].Segments[j].EndPosition;
segments.Add(seg);
}
Downloader d = DownloadManager.Instance.Add(
downloads[i].rl,
downloads[i].mirrors,
downloads[i].LocalFile,
segments,
downloads[i].remoteInfo,
downloads[i].requestedSegments,
false,
downloads[i].createdDateTime);
if (downloads[i].extendedProperties != null)
{
SerializableDictionary<string, object>.Enumerator e = downloads[i].extendedProperties.GetEnumerator();
while (e.MoveNext())
{
d.ExtendedProperties.Add(e.Current.Key, e.Current.Value);
}
}
}
}
private void StartSegments(int segmentCount, Stream inputStream)
{
// notifies
OnInfoReceived();
// allocs the file on disk
AllocLocalFile();
long segmentSize;
CalculatedSegment[] calculatedSegments;
if (!remoteFileInfo.AcceptRanges)
{
calculatedSegments = new CalculatedSegment[] { new CalculatedSegment(0, remoteFileInfo.FileSize) };
}
else
{
calculatedSegments = this.SegmentCalculator.GetSegments(segmentCount, remoteFileInfo);
}
lock (threads) threads.Clear();
lock (segments) segments.Clear();
for (int i = 0; i < calculatedSegments.Length; i++)
{
Segment segment = new Segment();
if (i == 0)
{
segment.InputStream = inputStream;
}
segment.Index = i;
segment.InitialStartPosition = calculatedSegments[i].StartPosition;
segment.StartPosition = calculatedSegments[i].StartPosition;
segment.EndPosition = calculatedSegments[i].EndPosition;
segments.Add(segment);
}
RunSegments();
}
private void StartSegment(Segment newSegment)
{
Thread segmentThread = new Thread(new ParameterizedThreadStart(SegmentThreadProc));
segmentThread.Start(newSegment);
lock (threads)
{
threads.Add(segmentThread);
}
}
private void AddNewSegmentIfNeeded()
{
lock (segments)
{
for (int i = 0; i < this.segments.Count; i++)
{
Segment oldSegment = this.segments[i];
if (oldSegment.State == SegmentState.Downloading &&
oldSegment.Left.TotalSeconds > Settings.Default.MinSegmentLeftToStartNewSegment &&
oldSegment.MissingTransfer / 2 >= Settings.Default.MinSegmentSize)
{
// get the half of missing size of oldSegment
long newSize = oldSegment.MissingTransfer / 2;
// create a new segment allocation the half old segment
Segment newSegment = new Segment();
newSegment.Index = this.segments.Count;
newSegment.StartPosition = oldSegment.StartPosition + newSize;
newSegment.InitialStartPosition = newSegment.StartPosition;
newSegment.EndPosition = oldSegment.EndPosition;
newSegment.OutputStream = oldSegment.OutputStream;
// removes bytes from old segments
oldSegment.EndPosition = oldSegment.EndPosition - newSize;
// add the new segment to the list
segments.Add(newSegment);
StartSegment(newSegment);
break;
}
}
}
}
protected virtual void OnSegmentStoped(Segment segment)
{
if (SegmentStoped != null)
{
SegmentStoped(this, new SegmentEventArgs(this, segment));
}
}
protected virtual void OnSegmentStarting(Segment segment)
{
if (SegmentStarting != null)
{
SegmentStarting(this, new SegmentEventArgs(this, segment));
}
}
protected virtual void OnRestartingSegment(Segment segment)
{
if (RestartingSegment != null)
{
RestartingSegment(this, new SegmentEventArgs(this, segment));
}
}
//private static void LoadPersistedObjects(DownloadItem[] downloads)
private static void LoadPersistedObjects(DownloadParameters downloadParameters)
{
string directory = downloadParameters.defaultDownloadDirectory;
DownloadManager.Instance.DefaultDownloadDirectorySource = directory;
if (!Path.IsPathRooted(directory))
directory = Path.Combine(GetDatabaseDirectory(), directory);
DownloadManager.Instance.DefaultDownloadDirectory = directory;
DownloadManager.Instance.LastDownloadId = downloadParameters.lastDownloadId;
DownloadItem[] downloads = downloadParameters.downloadItems;
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 seg = new Segment();
seg.Index = downloads[i].Segments[j].Index;
seg.InitialStartPosition = downloads[i].Segments[j].InitialStartPositon;
seg.StartPosition = downloads[i].Segments[j].StartPositon;
seg.EndPosition = downloads[i].Segments[j].EndPosition;
segments.Add(seg);
}
//Downloader d = DownloadManager.Instance.Add(
// downloads[i].rl,
// downloads[i].mirrors,
// downloads[i].LocalFile,
// segments,
// downloads[i].remoteInfo,
// downloads[i].requestedSegments,
// false,
// downloads[i].createdDateTime);
Downloader d = new Downloader(downloads[i].id, downloads[i].rl, downloads[i].mirrors, downloads[i].LocalFile, segments, downloads[i].remoteInfo,
downloads[i].requestedSegments, downloads[i].createdDateTime);
DownloadManager.Instance.Add(d, false);
if (downloads[i].extendedProperties != null)
{
SerializableDictionary<string, object>.Enumerator e = downloads[i].extendedProperties.GetEnumerator();
while (e.MoveNext())
{
d.ExtendedProperties.Add(e.Current.Key, e.Current.Value);
}
}
}
}
public SegmentEventArgs(Downloader d, Segment segment)
: base(d)
{
this.segment = segment;
}