protected internal void ReportProgress(BitsProgress progress)
{
var ev = OnProgress;
if (ev != null)
{
ev(progress);
}
}
private void OnTimerTick(object state)
{
var job = (BitsTransfer.BitsJob)state;
var status = job.State;
BitsProgress progress = new BitsProgress();
progress.Job = job;
if (status == BG_JOB_STATE.BG_JOB_STATE_TRANSFERRED)
{
progress.BytesTotal = (long)job.BytesTotal;
progress.BytesTransferred = (long)job.BytesTransferred;
progress.BytesRemaining = progress.BytesTotal - progress.BytesTransferred;
progress.EstimatedSpeed = 0;
progress.EstimatedTimeRemaining = -1;
progress.Percentage = 1;
job.ReportProgress(progress);
return;
}
if (status != BG_JOB_STATE.BG_JOB_STATE_TRANSFERRING)
{
lock (_bytesDeltaQueue)
{
_bytesDeltaQueue.Clear();
}
}
progress.BytesTotal = (long)job.BytesTotal;
progress.BytesTransferred = (long)job.BytesTransferred;
progress.BytesRemaining = progress.BytesTotal - progress.BytesTransferred;
var totalSeconds = -1L;
var lastBytes = Interlocked.Exchange(ref _lastBytesTransferred, progress.BytesTransferred);
var delta = progress.BytesTransferred - lastBytes;
if (delta > 0)
{
this.BytesDelta = delta;
}
var avgDelta = this.BytesDelta;
if (lastBytes >= 0 && avgDelta > 0)
{
totalSeconds = progress.BytesRemaining / avgDelta;
}
progress.EstimatedSpeed = avgDelta;
progress.EstimatedTimeRemaining = totalSeconds;
progress.Percentage = progress.BytesTotal > 0
? progress.BytesTransferred / (float)progress.BytesTotal
: 0;
job.ReportProgress(progress);
}
