Solve() private method

Finds a value of nonce that makes the blocks hash lower than the difficulty target. This is called mining, but solve() is far too slow to do real mining with. It exists only for unit testing purposes and is not a part of the public API.
This can loop forever if a solution cannot be found solely by incrementing nonce. It doesn't change extraNonce.
private Solve ( ) : void
return void
Esempio n. 1
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        /// <summary>
        /// Returns a solved block that builds on top of this one. This exists for unit tests.
        /// </summary>
        internal Block CreateNextBlock(Address to, uint time)
        {
            var b = new Block(Params);

            b.DifficultyTarget = _difficultyTarget;
            b.AddCoinbaseTransaction(_emptyBytes);

            // Add a transaction paying 50 coins to the "to" address.
            var t = new Transaction(Params);

            t.AddOutput(new TransactionOutput(Params, t, Utils.ToNanoCoins(50, 0), to));
            // The input does not really need to be a valid signature, as long as it has the right general form.
            var input = new TransactionInput(Params, t, Script.CreateInputScript(_emptyBytes, _emptyBytes));
            // Importantly the outpoint hash cannot be zero as that's how we detect a coinbase transaction in isolation
            // but it must be unique to avoid 'different' transactions looking the same.
            var counter = new byte[32];

            counter[0]          = (byte)_txCounter++;
            input.Outpoint.Hash = new Sha256Hash(counter);
            t.AddInput(input);
            b.AddTransaction(t);

            b.PrevBlockHash = Hash;
            b.TimeSeconds   = time;
            b.Solve();
            b.VerifyHeader();
            return(b);
        }
Esempio n. 2
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        /// <summary>
        /// Returns a solved block that builds on top of this one. This exists for unit tests.
        /// </summary>
        internal Block CreateNextBlock(Address to, uint time)
        {
            var b = new Block(Params);
            b.DifficultyTarget = _difficultyTarget;
            b.AddCoinbaseTransaction(_emptyBytes);

            // Add a transaction paying 50 coins to the "to" address.
            var t = new Transaction(Params);
            t.AddOutput(new TransactionOutput(Params, t, Utils.ToNanoCoins(50, 0), to));
            // The input does not really need to be a valid signature, as long as it has the right general form.
            var input = new TransactionInput(Params, t, Script.CreateInputScript(_emptyBytes, _emptyBytes));
            // Importantly the outpoint hash cannot be zero as that's how we detect a coinbase transaction in isolation
            // but it must be unique to avoid 'different' transactions looking the same.
            var counter = new byte[32];
            counter[0] = (byte) _txCounter++;
            input.Outpoint.Hash = new Sha256Hash(counter);
            t.AddInput(input);
            b.AddTransaction(t);

            b.PrevBlockHash = Hash;
            b.TimeSeconds = time;
            b.Solve();
            b.VerifyHeader();
            return b;
        }