public void UpdateImage(string clientID, byte[] image)
{
lock (_images)
{
ImageStoreDataItem di;
if (_images.TryGetValue(clientID, out di))
{
di.Image = image;
}
else
{
di = new ImageStoreDataItem();
di.Image = image;
_images[clientID] = di;
}
}
}
public int GetUpdateInterval(string clientID)
{
lock (_images)
{
ImageStoreDataItem di;
if (_images.TryGetValue(clientID, out di))
{
// Ne reads lately. Use default value.
if (di.LastImageRead[0] == DateTime.MinValue || di.LastImageRead[0] == DateTime.MinValue)
{
return(DefaultUploadInterval);
}
// Calculate difference of last to reads.
int result = (int)di.LastImageRead[0].Subtract(di.LastImageRead[1]).TotalMilliseconds;
// Limit to 500ms
if (result < 500)
{
result = 500;
}
// Last read longer than default upload rate. Return to default values.
if (DateTime.UtcNow.Subtract(di.LastImageRead[0]).TotalMilliseconds > DefaultUploadInterval)
{
di.LastImageRead[0] = DateTime.MinValue;
di.LastImageRead[0] = DateTime.MinValue;
}
return(result);
}
else
{
di = new ImageStoreDataItem();
di.Image = null;
_images[clientID] = di;
return(DefaultUploadInterval);
}
}
}
