public void Write(Block b)
{
using (var file = new FileStream(Path.Combine(folder, string.Format("{0:x}.blk", b.Id)), FileMode.CreateNew, FileAccess.Write))
using (var writer = new StreamWriter(file))
{
var formatter = new BlockPrettyWriter(writer);
formatter.Write(b);
}
using (var file = new FileStream(Path.Combine(folder, headBlockFileName), FileMode.Create, FileAccess.Write))
using (var writer = new StreamWriter(file))
{
var formatter = new BlockPrettyWriter(writer);
formatter.Write(b);
}
}
static void Main(string[] args)
{
var cryptoFunction = MD5.Create();
var chain = new FolderBlockChain();
var block = new Block();
block.Transactions = new []
{
CreateDummy(),
CreateDummy(),
CreateDummy()
};
try
{
var headBlock = chain.Head();
block.PreviousBlockId = headBlock.Id;
}
catch
{
block.PreviousBlockId = 0;
}
byte[] hashBytes = new byte[0];
uint nonce = 0;
var startTime = DateTime.Now;
Console.WriteLine("Start Time: {0}", startTime);
do
{
block.Nonce = nonce;
var blockBytes = block.GetBytes();
hashBytes = cryptoFunction.ComputeHash(blockBytes);
var hash = BitConverter.ToUInt64(hashBytes, 0);
Console.WriteLine("{0:X} - {1:X}", nonce, hash);
// increment nonce for next attempt
nonce++;
// difficulty of 8 zeros
}while((hashBytes[0] & 0xFF) != 0);
var endTime = DateTime.Now;
Console.WriteLine("End Time: {0}\nElapsed Time: {1} ms\nVerified Block:\n\n", endTime, (endTime - startTime).Milliseconds);
var formatter = new BlockPrettyWriter(Console.Out);
formatter.Write(block);
chain.Write(block);
Console.ReadKey();
}