static void findPacketsWithIntermediateNode(DVP dvp, bool result, Ip intermediateNodeIp)
{
// Zen will only check paths w/o intermediateNode
dvp.intermediateNode = intermediateNodeIp;
findPackets(dvp, result);
dvp.cleanConstraints();
}
static void findPacketsWithCost(DVP dvp, bool result, int maxCost)
{
// Zen will only check paths under the maxCost
dvp.maxCost = maxCost;
findPackets(dvp, result);
dvp.cleanConstraints();
}
static void oneHopReachability(DVP dvp)
{
// 1. Evaluate
Ip srcAddr = new Ip
{
Value = 1
};
Ip dstAddr = new Ip
{
Value = 2
};
ZenFunction <Ip, Ip, bool> f = Function <Ip, Ip, bool>(dvp.OneHopForward);
var output = f.Evaluate(srcAddr, dstAddr);
Console.WriteLine(output);
// 2. Find
var input = f.Find((src, dst, result) => And(And(And(src.GetField <Ip, uint>("Value") < 7,
dst.GetField <Ip, uint>("Value") < 7), result == False()), src != dst));
Console.WriteLine("Using powerful Zen Find!!!");
Console.WriteLine(input);
Console.WriteLine("printing single value");
Console.WriteLine(input.Value);
}
static void findPacketsWithFailedLinks(DVP dvp, bool result)
{
var failedLinks = new List <Tuple <int, int> >();
failedLinks.Add(new Tuple <int, int>(0, 1));
failedLinks.Add(new Tuple <int, int>(5, 6));
findPackets(dvp, result, failedLinks);
dvp.cleanConstraints();
}
static void findFailedLinksWithPacket(DVP dvp, bool result)
{
var packet = new SimplePacket
{
SrcIp = new Ip {
Value = 6
},
DstIp = new Ip {
Value = 1
},
};
findLinks(dvp, result, packet);
dvp.cleanConstraints();
}
static void evaluateReachability(DVP dvp, List <Tuple <int, int> > failedLinks = null)
{
if (failedLinks == null)
{
failedLinks = new List <Tuple <int, int> >();
}
ZenFunction <SimplePacket, IList <Tuple <int, int> >, bool> f = Function <SimplePacket, IList <Tuple <int, int> >, bool>(dvp.Forward);
f.Compile();
Console.WriteLine("Evaluating output");
var correct_input = new SimplePacket
{
SrcIp = new Ip {
Value = 1
},
DstIp = new Ip {
Value = 2
},
};
var wrong_input = new SimplePacket
{
SrcIp = new Ip {
Value = 0
},
DstIp = new Ip {
Value = 0
},
};
Console.WriteLine("Evaluating correct input: \t" + correct_input);
var output = f.Evaluate(correct_input, failedLinks);
Console.WriteLine("\t Reachable? " + output);
Console.WriteLine("Evaluating wrong input: \t" + wrong_input);
output = f.Evaluate(wrong_input, failedLinks);
Console.WriteLine("\t Reachable? " + output);
Console.WriteLine();
}
static void findLinks(DVP dvp, bool desired_result, SimplePacket packet)
{
Console.WriteLine("findLinks");
ZenFunction <SimplePacket, IList <Tuple <int, int> >, bool> f = Function <SimplePacket, IList <Tuple <int, int> >, bool>(dvp.Forward);
f.Compile();
// Console.WriteLine("Using FindAll");
// Console.WriteLine("Number of packets that cannot be delivered in the network:");
var input = f.FindAll((pkt, failed_links, result) => And(
And(
And(
And(
pkt.GetDstIp().GetField <Ip, uint>("Value") == packet.DstIp.Value,
pkt.GetSrcIp().GetField <Ip, uint>("Value") == packet.SrcIp.Value
),
pkt.GetDstIp() != pkt.GetSrcIp()),
result == desired_result),
// For DVP, no route requires more then two links to fail (no multiple path routing)
// Therefore, we limit length to 1 here
failed_links.Length() == 1));
Console.WriteLine("\tCount:\t" + input.Count());
//Console.WriteLine();
//Console.WriteLine(input);
if (input.Count() != 0)
{
Console.WriteLine("\tPrinting inputs:");
foreach (var x in input)
{
Console.Write("\t\t" + x.Item1 + " with List [");
foreach (var i in x.Item2)
{
Console.Write(i + ", ");
}
Console.WriteLine("]");
}
}
}
static void findPackets(DVP dvp, bool desired_result, List <Tuple <int, int> > failedLinks = null)
{
if (failedLinks == null)
{
failedLinks = new List <Tuple <int, int> >();
}
Console.WriteLine("findPackets");
ZenFunction <SimplePacket, IList <Tuple <int, int> >, bool> f = Function <SimplePacket, IList <Tuple <int, int> >, bool>(dvp.Forward);
f.Compile();
// Console.WriteLine("Using FindAll");
// Console.WriteLine("Number of packets that cannot be delivered in the network:");
Console.WriteLine(failedLinks);
var input = f.FindAll((pkt, failed_links, result) => And(
And(
And(
And(
pkt.GetDstIp().GetField <Ip, uint>("Value") < 7,
pkt.GetSrcIp().GetField <Ip, uint>("Value") < 7
),
pkt.GetDstIp() != pkt.GetSrcIp()),
result == desired_result),
failed_links == failedLinks));
Console.WriteLine("\tCount:\t" + input.Count());
//Console.WriteLine();
//Console.WriteLine(input);
if (input.Count() != 0)
{
Console.WriteLine("\tPrinting inputs:");
foreach (var x in input)
{
Console.WriteLine("\t\t" + x);
}
}
}
