/// <summary>
/// Gets the digital input values for the specified <see cref="DIBit"/>s. A read from the controller will only be performed if no previous
/// read was performed within the specified timeout.
/// </summary>
/// <param name="bits">The DI bits.</param>
/// <param name="minFresh">The minimum amount of time before data is considered stale and a re-read is required.</param>
/// <returns>
/// The values.
/// </returns>
public static IEnumerable <int> GetValues(this IEnumerable <DIBit> bits, TimeSpan minFresh)
{
var devGroups = bits.GroupBy(b => b.Device);
foreach (var devGroup in devGroups)
{
IIODevice dev = (IIODevice)devGroup.Key;
List <DIBit> orderedBits = devGroup.OrderBy(b => b.Channel).ToList();
bool allFresh = true;
foreach (DIBit bit in orderedBits)
{
if (DateTime.Now - bit.LastRead > minFresh)
{
allFresh = false;
break;
}
}
if (!allFresh)
{
int[] values = dev.GetDIBits(orderedBits.Select(b => b.Channel).ToArray());
DateTime readTime = DateTime.Now;
for (int i = 0; i < values.Length; i++)
{
orderedBits[i].Update(readTime, values[i]);
}
}
}
return(bits.Select(b => b.GetLast()));
}
/// <summary>
/// Gets the digital input values for the specified DI bits.
/// </summary>
/// <param name="bits">The DI bits.</param>
/// <returns>The values.</returns>
public static IEnumerable <int> GetValues(this IEnumerable <DIBit> bits)
{
var devGroups = bits.GroupBy(b => b.Device);
foreach (var devGroup in devGroups)
{
IIODevice dev = (IIODevice)devGroup.Key;
List <DIBit> orderedBits = devGroup.OrderBy(b => b.Channel).ToList();
int[] values = dev.GetDIBits(orderedBits.Select(b => b.Channel).ToArray());
DateTime readTime = DateTime.Now;
for (int i = 0; i < values.Length; i++)
{
orderedBits[i].Update(readTime, values[i]);
}
}
return(bits.Select(b => b.GetLast()));
}
