private void AnySegmentProgressDisposed(SegmentProgress prog)
{
prog.ProgressChanged -= AnySegmentProgressChanged;
prog.Disposed -= AnySegmentProgressDisposed;
lock (segmentProgressesLock)
{
segmentProgresses.Remove(prog);
if (prog.DownloadedSize != 0)
{
coveredRanges.Add(new Range(
prog.Offset, prog.Offset + prog.DownloadedSize));
}
}
}
/// <summary>
/// Create a SegmentProgress in this CompositeProgress.
/// Dispose a SegmentProgress to remove it from CompositeProgress
/// and stablize its downloaded range into previouslv covered ranges.
///
/// See <see cref="CompositeProgress"/>.
/// </summary>
/// <param name="offset">Offset of the SegmentProgress created.</param>
/// <param name="totalSize">TotalSize of the SegmentProgress created.</param>
/// <returns>SegmentProgress created.</returns>
public SegmentProgress NewSegmentProgress(long offset, long totalSize)
{
var targetRange = new Range(offset, offset + totalSize);
var res = new SegmentProgress(this, offset, totalSize);
lock (segmentProgressesLock)
{
Ensure.That(coveredRanges.All(covered => !targetRange.IsIntersectWith(covered))).IsTrue();
Ensure.That(segmentProgresses.All(progress => !targetRange.IsIntersectWith(new Range(progress.Offset, progress.Offset + progress.TotalSize)))).IsTrue();
res.ProgressChanged += AnySegmentProgressChanged;
res.Disposed += AnySegmentProgressDisposed;
segmentProgresses.Add(res);
}
return(res);
}