private void AdvanceChannel(CbmData data)
{
data.ActiveChannel++;
if (data.ActiveChannel == m_channels.Length)
{
data.ActiveChannel = 0;
}
data.Remaining = m_counts[data.ActiveChannel];
}
/// <summary>
/// This is fired once at the beginning of this branch manager's being asked to review a set of edges,
/// which happens immediately after a vertex is satisfied. After that, FireIfAppropriate(...) is called
/// once for each outbound edge.
/// </summary>
/// <param name="graphContext">The graph context in which we are currently running.</param>
public void Start(IDictionary graphContext)
{
CbmData data = (CbmData)graphContext[_cbmDataKey];
if (data == null)
{
data = new CbmData();
graphContext.Add(_cbmDataKey, data);
}
data.CurrentPriority = m_model.Executive.CurrentPriorityLevel;
data.Now = m_model.Executive.Now;
if (data.Remaining == 0)
{
AdvanceChannel(data);
}
data.Remaining--;
//Console.WriteLine("CountedBranchManager.Start: Active channel " + m_channels[data.ActiveChannel].ToString() + ", " + data.Remaining + " iterations.");
}
/// <summary>
/// Schedules the presented edge to be fired if the edge's channel matches the currently active channel.
/// </summary>
/// <param name="graphContext">The graph context in which we are currently running.</param>
/// <param name="edge">The edge being considered for execution.</param>
public void FireIfAppropriate(IDictionary graphContext, Edge edge)
{
//System.Diagnostics.Debugger.Break();
//Console.Write("Reviewing edge " + edge.Name + " for firing. Its channel marker is " + edge.Channel.ToString());
CbmData data = (CbmData)graphContext[_cbmDataKey];
// If data is null, here, it is probably because the vertex did not call Start before firing branch edges.
if (m_channels[data.ActiveChannel].Equals(edge.Channel))
{
//Console.WriteLine(" Scheduling it to fire.");
m_model.Executive.RequestEvent(s_launchEdge, data.Now, data.CurrentPriority, new EdgeLaunchData(edge, graphContext));
}
else
{
//Console.WriteLine(" Nope, not this time.");
// We're not going to fire it this time around.
}
}
