static extern void _ResponseBody(
[MarshalAs(UnmanagedType.IUnknown)] object transaction,
[MarshalAs(UnmanagedType.LPArray)] byte[] data,
int offset,
int count,
ContinuationDelegate continuation,
[MarshalAs(UnmanagedType.Bool)] out bool async);
/// <summary>
/// Performs a traversal on all descendants of a node in a depth first order, and yields
/// on every node it visits.
/// </summary>
/// <param name="start">The node in the graph to start the travesal at.</param>
/// <param name="continueCondition">The condition an edge has to met in order to be traversed.</param>
/// <returns>A lazy loaded ordered collection containing all nodes it traversed.</returns>
public static IEnumerable <Node> DepthFirstTraversal(this Node start, ContinuationDelegate continueCondition)
{
var stack = new Stack <Node>();
stack.Push(start);
while (stack.Count > 0)
{
var current = stack.Pop();
yield return(current);
foreach (var edge in current.OutgoingEdges)
{
if (continueCondition(current, edge))
{
stack.Push(edge.GetOtherNode(current));
}
}
}
}
/// <summary>
/// Performs a traversl of all descendants of a node in a breadth first order, and yields
/// on every node it visits. An edge is traversed when the given condition is met.
/// </summary>
/// <param name="start">The node in the graph to start the travesal at.</param>
/// <param name="continueCondition">The condition an edge has to met in order to be traversed.</param>
/// <returns></returns>
public static IEnumerable <Node> BreadthFirstTraversal(this Node start, ContinuationDelegate continueCondition)
{
var queue = new Queue <Node>();
queue.Enqueue(start);
while (queue.Count > 0)
{
var current = queue.Dequeue();
yield return(current);
foreach (var edge in current.OutgoingEdges)
{
if (continueCondition(current, edge))
{
queue.Enqueue(edge.GetOtherNode(current));
}
}
}
}
void ICrosswalkModule.ResponseBody(object transaction, byte[] data, int offset, int count, ContinuationDelegate continuation, out bool async)
{
_ResponseBody(transaction, data, offset, count, continuation, out async);
}