Examples with HashedTrie snowblossom.lib.trie.HashedTrie used on opensource projects

Example 11 with HashedTrie

use of snowblossom.lib.trie.HashedTrie in project snowblossom by snowblossomcoin.

the class MemPoolTest method testSimpleChain.

@Test
public void testSimpleChain() throws Exception {
    HashedTrie utxo_trie = newMemoryTrie();
    KeyPair keys = KeyUtil.generateECCompressedKey();
    UtxoUpdateBuffer utxo_buffer = new UtxoUpdateBuffer(utxo_trie, UtxoUpdateBuffer.EMPTY);
    TransactionInput in_a = addUtxoToUseAtInput(utxo_buffer, keys, 100000L);
    ChainHash utxo_root = utxo_buffer.commit();
    TransactionOutput out_a = TransactionOutput.newBuilder().setRecipientSpecHash(in_a.getSpecHash()).setValue(100000L).build();
    Transaction tx_a = TransactionUtil.createTransaction(ImmutableList.of(in_a), ImmutableList.of(out_a), keys);
    MemPool mem_pool = new MemPool(utxo_trie, new DummyChainState(100));
    mem_pool.rebuildPriorityMap(utxo_root);
    Assert.assertEquals(0, mem_pool.getTransactionsForBlock(utxo_root, 1048576).size());
    mem_pool.addTransaction(tx_a, false);
    Assert.assertEquals(1, mem_pool.getTransactionsForBlock(utxo_root, 1048576).size());
    TransactionInput in_b = TransactionInput.newBuilder().setSpecHash(in_a.getSpecHash()).setSrcTxId(tx_a.getTxHash()).setSrcTxOutIdx(0).build();
    TransactionOutput out_b = TransactionOutput.newBuilder().setRecipientSpecHash(in_a.getSpecHash()).setValue(100000L).build();
    Transaction tx_b = TransactionUtil.createTransaction(ImmutableList.of(in_b), ImmutableList.of(out_b), keys);
    mem_pool.addTransaction(tx_b, false);
    Assert.assertEquals(2, mem_pool.getTransactionsForBlock(utxo_root, 1048576).size());
    TransactionInput in_c = TransactionInput.newBuilder().setSpecHash(in_a.getSpecHash()).setSrcTxId(tx_b.getTxHash()).setSrcTxOutIdx(0).build();
    TransactionOutput out_c = TransactionOutput.newBuilder().setRecipientSpecHash(in_a.getSpecHash()).setValue(100000L).build();
    Transaction tx_c = TransactionUtil.createTransaction(ImmutableList.of(in_c), ImmutableList.of(out_c), keys);
    mem_pool.addTransaction(tx_c, false);
    Assert.assertEquals(3, mem_pool.getTransactionsForBlock(utxo_root, 1048576).size());
}

Example 12 with HashedTrie

use of snowblossom.lib.trie.HashedTrie in project snowblossom by snowblossomcoin.

the class MemPoolTest method testStormChain.

@Test
public void testStormChain() throws Exception {
    HashedTrie utxo_trie = newMemoryTrie();
    KeyPair keys = KeyUtil.generateECCompressedKey();
    UtxoUpdateBuffer utxo_buffer = new UtxoUpdateBuffer(utxo_trie, UtxoUpdateBuffer.EMPTY);
    Random rnd = new Random();
    TreeMap<Double, InputInfo> ready_inputs = new TreeMap<>();
    AddressSpecHash address = null;
    for (int i = 0; i < 100; i++) {
        TransactionInput in = addUtxoToUseAtInput(utxo_buffer, keys, 100000L);
        System.out.println("Source tx: " + new ChainHash(in.getSrcTxId()));
        InputInfo ii = new InputInfo();
        ii.in = in;
        ii.value = 100000L;
        ready_inputs.put(rnd.nextDouble(), ii);
        address = new AddressSpecHash(in.getSpecHash());
    }
    ChainHash utxo_root = utxo_buffer.commit();
    MemPool mem_pool = new MemPool(utxo_trie, new DummyChainState(100), 10000000);
    Assert.assertEquals(0, mem_pool.getTransactionsForBlock(utxo_root, 1048576).size());
    TimeRecord tr = new TimeRecord();
    TimeRecord.setSharedRecord(tr);
    for (int i = 0; i < 500; i++) {
        long t1 = System.nanoTime();
        InputInfo ia = ready_inputs.pollFirstEntry().getValue();
        InputInfo ib = ready_inputs.pollFirstEntry().getValue();
        InputInfo ic = ready_inputs.pollFirstEntry().getValue();
        TransactionOutput out = TransactionOutput.newBuilder().setRecipientSpecHash(address.getBytes()).setValue(100000L).build();
        System.out.println("Selected inputs: " + ia + " " + ib + " " + ic);
        long t3 = System.nanoTime();
        Transaction tx = TransactionUtil.createTransaction(ImmutableList.of(ia.in, ib.in, ic.in), ImmutableList.of(out, out, out), keys);
        TimeRecord.record(t3, "create_tx");
        System.out.println("Intermediate transaction: " + new ChainHash(tx.getTxHash()));
        long t2 = System.nanoTime();
        mem_pool.addTransaction(tx, false);
        TimeRecord.record(t2, "mem_pool");
        for (int j = 0; j < 3; j++) {
            TransactionInput in = TransactionInput.newBuilder().setSpecHash(address.getBytes()).setSrcTxId(tx.getTxHash()).setSrcTxOutIdx(j).build();
            System.out.println(String.format("Adding output %s:%d", new ChainHash(tx.getTxHash()).toString(), j));
            InputInfo ii = new InputInfo();
            ii.in = in;
            ii.value = 100000L;
            ready_inputs.put(rnd.nextDouble(), ii);
        }
        TimeRecord.record(t1, "tx");
    }
    long t4 = System.nanoTime();
    Assert.assertEquals(500, mem_pool.getTransactionsForBlock(utxo_root, 1048576).size());
    TimeRecord.record(t4, "get_block_tx_list");
    tr.printReport(System.out);
}