private static KukuTableParameters ParseParameters(string[] args)
{
if (args.Length != 4)
{
Console.WriteLine("Incorrect number of arguments. Expected: 4.");
ShowHelp();
Environment.Exit(1);
}
if (!uint.TryParse(args[0], out uint tableSize))
{
Console.WriteLine($"Invalid value for parameter {nameof(tableSize)}. Expected uint.");
ShowHelp();
Environment.Exit(1);
}
if (!uint.TryParse(args[1], out uint stashSize))
{
Console.WriteLine($"Invalid value for parameter {nameof(stashSize)}. Expected uint.");
ShowHelp();
Environment.Exit(1);
}
if (!uint.TryParse(args[2], out uint locFuncCount))
{
Console.WriteLine($"Invalid value for parameter {nameof(locFuncCount)}. Expected uint.");
ShowHelp();
Environment.Exit(1);
}
if (!ulong.TryParse(args[3], out ulong maxProbe))
{
Console.WriteLine($"Invalid value for parameter {nameof(maxProbe)}. Expected uint.");
ShowHelp();
Environment.Exit(1);
}
var parameters = new KukuTableParameters()
{
TableSize = tableSize, StashSize = stashSize, LocFuncCount = locFuncCount, MaxProbe = maxProbe
};
var random = new Random();
parameters.LocFuncSeed = Item.MakeRandomItem();
parameters.EmptyItem = Item.MakeZeroItem();
return(parameters);
}
static void RunExample(KukuTableParameters parameters)
{
var kukuTable = new KukuTable(parameters);
ulong roundCounter = 0;
while (true)
{
Console.WriteLine($"Inserted {roundCounter * 20} items.");
Console.WriteLine($"Fill rate: {kukuTable.FillRate}.");
Console.ReadKey();
for (ulong i = 0; i < 20; i++)
{
var item = Item.MakeItem(i + 1, roundCounter + 1);
if (!kukuTable.Insert(item))
{
Console.WriteLine($"Insertion failed: round_counter = {roundCounter}, i = {i}");
Console.WriteLine($"Inserted successfully {roundCounter * 20 + i} items.");
Console.WriteLine($"Fill rate: {kukuTable.FillRate}.");
var lastItem = kukuTable.LeftoverItem;
Console.WriteLine($"Leftover item: [{string.Join(',', lastItem)}].");
break;
}
}
PrintTable(kukuTable);
if (!kukuTable.IsEmptyItem(kukuTable.LeftoverItem))
{
break;
}
roundCounter++;
}
while (true)
{
Console.WriteLine("Query item: ");
var input = Console.ReadLine();
Item item;
try
{
if (input == null)
{
continue;
}
var data = input.Split(",").Select(ulong.Parse).ToArray();
item = Item.MakeItem(data[0], data[1]);
}
catch
{
Console.WriteLine($"Incorrect format. Expected: <ulong>,<ulong>");
continue;
}
var result = kukuTable.Query(item);
Console.WriteLine($"Found: {result.Found}");
if (result.Found)
{
Console.WriteLine($"Location: {result.Location}");
Console.WriteLine($"In stash: {result.InStash}");
Console.WriteLine($"Hash function index: {result.LocFuncIndex}");
}
}
}