org.bitcoinj.core.Block.setNonce()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中org.bitcoinj.core.Block.setNonce()方法的一些代码示例，展示了Block.setNonce()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Block.setNonce()方法的具体详情如下：
包路径：org.bitcoinj.core.Block
类名称：Block
方法名：setNonce

Block.setNonce介绍

[英]Sets the nonce and clears any cached data.
[中]设置nonce并清除所有缓存数据。

代码示例

代码示例来源：origin: greenaddress/GreenBits

@Override
public Block getGenesisBlock() {
  synchronized (RegTestParams.class) {
    if (genesis == null) {
      genesis = super.getGenesisBlock();
      genesis.setNonce(2);
      genesis.setDifficultyTarget(0x207fFFFFL);
      genesis.setTime(1296688602L);
      checkState(genesis.getHashAsString().toLowerCase().equals("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
    }
    return genesis;
  }
}

代码示例来源：origin: fr.acinq/bitcoinj-core

@Override
public Block getGenesisBlock() {
  synchronized (RegTestParams.class) {
    if (genesis == null) {
      genesis = super.getGenesisBlock();
      genesis.setNonce(2);
      genesis.setDifficultyTarget(0x207fFFFFL);
      genesis.setTime(1296688602L);
      checkState(genesis.getHashAsString().toLowerCase().equals("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
    }
    return genesis;
  }
}

代码示例来源：origin: HashEngineering/dashj

/**
 * <p>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.
 *
 * <p>This can loop forever if a solution cannot be found solely by incrementing nonce. It doesn't change
 * extraNonce.</p>
 */
public void solve() {
  while (true) {
    try {
      // Is our proof of work valid yet?
      if (checkProofOfWork(false))
        return;
      // No, so increment the nonce and try again.
      setNonce(getNonce() + 1);
    } catch (VerificationException e) {
      throw new RuntimeException(e); // Cannot happen.
    }
  }
}

代码示例来源：origin: cash.bitcoinj/bitcoinj-core

/**
 * <p>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.
 *
 * <p>This can loop forever if a solution cannot be found solely by incrementing nonce. It doesn't change
 * extraNonce.</p>
 */
public void solve() {
  while (true) {
    try {
      // Is our proof of work valid yet?
      if (checkProofOfWork(false))
        return;
      // No, so increment the nonce and try again.
      setNonce(getNonce() + 1);
    } catch (VerificationException e) {
      throw new RuntimeException(e); // Cannot happen.
    }
  }
}

代码示例来源：origin: greenaddress/GreenBits

/**
 * <p>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.
 *
 * <p>This can loop forever if a solution cannot be found solely by incrementing nonce. It doesn't change
 * extraNonce.</p>
 */
public void solve() {
  while (true) {
    try {
      // Is our proof of work valid yet?
      if (checkProofOfWork(false))
        return;
      // No, so increment the nonce and try again.
      setNonce(getNonce() + 1);
    } catch (VerificationException e) {
      throw new RuntimeException(e); // Cannot happen.
    }
  }
}

代码示例来源：origin: cash.bitcoinj/bitcoinj-core

@Override
public Block getGenesisBlock() {
  synchronized (RegTestParams.class) {
    if (genesis == null) {
      genesis = super.getGenesisBlock();
      genesis.setNonce(2);
      genesis.setDifficultyTarget(0x207fFFFFL);
      genesis.setTime(1296688602L);
      checkState(genesis.getHashAsString().toLowerCase().equals("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
    }
    return genesis;
  }
}

代码示例来源：origin: fr.acinq/bitcoinj-core

/**
 * <p>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.
 *
 * <p>This can loop forever if a solution cannot be found solely by incrementing nonce. It doesn't change
 * extraNonce.</p>
 */
public void solve() {
  while (true) {
    try {
      // Is our proof of work valid yet?
      if (checkProofOfWork(false))
        return;
      // No, so increment the nonce and try again.
      setNonce(getNonce() + 1);
    } catch (VerificationException e) {
      throw new RuntimeException(e); // Cannot happen.
    }
  }
}

代码示例来源：origin: HashEngineering/dashj

@Override
public Block getGenesisBlock() {
  synchronized (RegTestParams.class) {
    if (genesis == null) {
      genesis = super.getGenesisBlock();
      genesis.setNonce(2);
      genesis.setDifficultyTarget(0x207fFFFFL);
      genesis.setTime(1296688602L);
      //checkState(genesis.getHashAsString().toLowerCase().equals("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
    }
    return genesis;
  }
}

代码示例来源：origin: HashEngineering/dashj

genesisBlock.setNonce(CoinDefinition.testnetGenesisBlockNonce);
spendableCoinbaseDepth = CoinDefinition.spendableCoinbaseDepth;
subsidyDecreaseBlockCount = CoinDefinition.subsidyDecreaseBlockCount;

代码示例来源：origin: dogecoin/libdohj

/**
 * Extract from Litecoin source code, definition of regtest params.
 * https://github.com/litecoin-project/litecoin/blob/edc66b374ea68107c721062152dd95e6aa037d53/src/chainparams.cpp
 */
@Override
public Block getGenesisBlock() {
  synchronized (LitecoinRegTestParams.class) {
    if (genesis == null) {
      genesis = super.getGenesisBlock();
      genesis.setNonce(0);
      genesis.setDifficultyTarget(0x207fffffL);
      genesis.setTime(1296688602L);
      checkState(genesis.getVersion() == 1);
      checkState(genesis.getMerkleRoot().toString().equals("97ddfbbae6be97fd6cdf3e7ca13232a3afff2353e29badfab7f73011edd4ced9"));
      checkState(genesis.getHashAsString().toLowerCase().equals("530827f38f93b43ed12af0b3ad25a288dc02ed74d6d7857862df51fc56c416f9"));
      genesis.verifyHeader();
    }
    return genesis;
  }
}

代码示例来源：origin: fr.acinq/bitcoinj-core

genesisBlock.setTime(1296688602L);
genesisBlock.setDifficultyTarget(0x1d00ffffL);
genesisBlock.setNonce(414098458);
spendableCoinbaseDepth = 100;
subsidyDecreaseBlockCount = 210000;

代码示例来源：origin: greenaddress/GreenBits

public TestNet2Params() {
  super();
  id = ID_TESTNET;
  packetMagic = 0xfabfb5daL;
  port = 18333;
  addressHeader = 111;
  p2shHeader = 196;
  acceptableAddressCodes = new int[] { addressHeader, p2shHeader };
  interval = INTERVAL;
  targetTimespan = TARGET_TIMESPAN;
  maxTarget = Utils.decodeCompactBits(0x1d0fffffL);
  dumpedPrivateKeyHeader = 239;
  genesisBlock.setTime(1296688602L);
  genesisBlock.setDifficultyTarget(0x1d07fff8L);
  genesisBlock.setNonce(384568319);
  spendableCoinbaseDepth = 100;
  subsidyDecreaseBlockCount = 210000;
  String genesisHash = genesisBlock.getHashAsString();
  checkState(genesisHash.equals("00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008"));
  dnsSeeds = null;
  addrSeeds = null;
  bip32HeaderPub = 0x043587CF;
  bip32HeaderPriv = 0x04358394;
  majorityEnforceBlockUpgrade = TESTNET_MAJORITY_ENFORCE_BLOCK_UPGRADE;
  majorityRejectBlockOutdated = TESTNET_MAJORITY_REJECT_BLOCK_OUTDATED;
  majorityWindow = TESTNET_MAJORITY_WINDOW;
}

代码示例来源：origin: cash.bitcoinj/bitcoinj-core

public TestNet2Params() {
  super();
  id = ID_TESTNET;
  packetMagic = 0xdab5bffaL;
  port = 18333;
  addressHeader = 111;
  p2shHeader = 196;
  acceptableAddressCodes = new int[] { addressHeader, p2shHeader };
  interval = INTERVAL;
  targetTimespan = TARGET_TIMESPAN;
  maxTarget = Utils.decodeCompactBits(0x1d0fffffL);
  dumpedPrivateKeyHeader = 239;
  genesisBlock.setTime(1296688602L);
  genesisBlock.setDifficultyTarget(0x1d07fff8L);
  genesisBlock.setNonce(384568319);
  spendableCoinbaseDepth = 100;
  subsidyDecreaseBlockCount = 210000;
  String genesisHash = genesisBlock.getHashAsString();
  checkState(genesisHash.equals("00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008"));
  dnsSeeds = null;
  addrSeeds = null;
  bip32HeaderPub = 0x043587CF;
  bip32HeaderPriv = 0x04358394;
  majorityEnforceBlockUpgrade = TESTNET_MAJORITY_ENFORCE_BLOCK_UPGRADE;
  majorityRejectBlockOutdated = TESTNET_MAJORITY_REJECT_BLOCK_OUTDATED;
  majorityWindow = TESTNET_MAJORITY_WINDOW;
  /** Activation time at which the cash HF kicks in. */
  cashHardForkActivationTime = 1510600000;
  daaHeight = 1188697;
}

代码示例来源：origin: fr.acinq/bitcoinj-core

public TestNet2Params() {
  super();
  id = ID_TESTNET;
  packetMagic = 0xfabfb5daL;
  port = 18333;
  addressHeader = 111;
  p2shHeader = 196;
  acceptableAddressCodes = new int[] { addressHeader, p2shHeader };
  interval = INTERVAL;
  targetTimespan = TARGET_TIMESPAN;
  maxTarget = Utils.decodeCompactBits(0x1d0fffffL);
  dumpedPrivateKeyHeader = 239;
  genesisBlock.setTime(1296688602L);
  genesisBlock.setDifficultyTarget(0x1d07fff8L);
  genesisBlock.setNonce(384568319);
  spendableCoinbaseDepth = 100;
  subsidyDecreaseBlockCount = 210000;
  String genesisHash = genesisBlock.getHashAsString();
  checkState(genesisHash.equals("00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008"));
  dnsSeeds = null;
  addrSeeds = null;
  bip32HeaderPub = 0x043587CF;
  bip32HeaderPriv = 0x04358394;
  majorityEnforceBlockUpgrade = TESTNET_MAJORITY_ENFORCE_BLOCK_UPGRADE;
  majorityRejectBlockOutdated = TESTNET_MAJORITY_REJECT_BLOCK_OUTDATED;
  majorityWindow = TESTNET_MAJORITY_WINDOW;
}

代码示例来源：origin: dogecoin/libdohj

public DogecoinTestNet3Params() {
  super(DIFFICULTY_CHANGE_TARGET);
  id = ID_DOGE_TESTNET;
  packetMagic = 0xfcc1b7dc;
  maxTarget = Utils.decodeCompactBits(0x1e0fffffL);
  port = 44556;
  addressHeader = 113;
  p2shHeader = 196;
  acceptableAddressCodes = new int[] { addressHeader, p2shHeader };
  dumpedPrivateKeyHeader = 241;
  genesisBlock.setTime(1391503289L);
  genesisBlock.setDifficultyTarget(0x1e0ffff0L);
  genesisBlock.setNonce(997879);
  spendableCoinbaseDepth = 30;
  subsidyDecreaseBlockCount = 100000;
  String genesisHash = genesisBlock.getHashAsString();
  checkState(genesisHash.equals("bb0a78264637406b6360aad926284d544d7049f45189db5664f3c4d07350559e"));
  alertSigningKey = Hex.decode("042756726da3c7ef515d89212ee1705023d14be389e25fe15611585661b9a20021908b2b80a3c7200a0139dd2b26946606aab0eef9aa7689a6dc2c7eee237fa834");
  majorityEnforceBlockUpgrade = TESTNET_MAJORITY_ENFORCE_BLOCK_UPGRADE;
  majorityRejectBlockOutdated = TESTNET_MAJORITY_REJECT_BLOCK_OUTDATED;
  majorityWindow = TESTNET_MAJORITY_WINDOW;
  dnsSeeds = new String[] {
    "testseed.jrn.me.uk"
  };
  // Note this is the same as the BIP32 testnet, as BIP44 makes HD wallets
  // chain agnostic. Dogecoin mainnet has its own headers for legacy reasons.
  bip32HeaderPub = 0x043587CF;
  bip32HeaderPriv = 0x04358394;
}

代码示例来源：origin: greenaddress/GreenBits

@Test
public void testProofOfWork() throws Exception {
  // This params accepts any difficulty target.
  NetworkParameters params = UnitTestParams.get();
  Block block = params.getDefaultSerializer().makeBlock(blockBytes);
  block.setNonce(12346);
  try {
    block.verify(Block.BLOCK_HEIGHT_GENESIS, EnumSet.noneOf(Block.VerifyFlag.class));
    fail();
  } catch (VerificationException e) {
    // Expected.
  }
  // Blocks contain their own difficulty target. The BlockChain verification mechanism is what stops real blocks
  // from containing artificially weak difficulties.
  block.setDifficultyTarget(Block.EASIEST_DIFFICULTY_TARGET);
  // Now it should pass.
  block.verify(Block.BLOCK_HEIGHT_GENESIS, EnumSet.noneOf(Block.VerifyFlag.class));
  // Break the nonce again at the lower difficulty level so we can try solving for it.
  block.setNonce(1);
  try {
    block.verify(Block.BLOCK_HEIGHT_GENESIS, EnumSet.noneOf(Block.VerifyFlag.class));
    fail();
  } catch (VerificationException e) {
    // Expected to fail as the nonce is no longer correct.
  }
  // Should find an acceptable nonce.
  block.solve();
  block.verify(Block.BLOCK_HEIGHT_GENESIS, EnumSet.noneOf(Block.VerifyFlag.class));
  assertEquals(block.getNonce(), 2);
}

代码示例来源：origin: greenaddress/GreenBits

private static Block getBlock2() throws Exception {
  Block b2 = new Block(testNet, Block.BLOCK_VERSION_GENESIS);
  b2.setMerkleRoot(Sha256Hash.wrap("addc858a17e21e68350f968ccd384d6439b64aafa6c193c8b9dd66320470838b"));
  b2.setNonce(2642058077L);
  b2.setTime(1296734343L);
  b2.setPrevBlockHash(Sha256Hash.wrap("000000033cc282bc1fa9dcae7a533263fd7fe66490f550d80076433340831604"));
  assertEquals("000000037b21cac5d30fc6fda2581cf7b2612908aed2abbcc429c45b0557a15f", b2.getHashAsString());
  b2.verifyHeader();
  return b2;
}

代码示例来源：origin: greenaddress/GreenBits

private static Block getBlock1() throws Exception {
  Block b1 = new Block(testNet, Block.BLOCK_VERSION_GENESIS);
  b1.setMerkleRoot(Sha256Hash.wrap("0e8e58ecdacaa7b3c6304a35ae4ffff964816d2b80b62b58558866ce4e648c10"));
  b1.setNonce(236038445);
  b1.setTime(1296734340);
  b1.setPrevBlockHash(Sha256Hash.wrap("00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008"));
  assertEquals("000000033cc282bc1fa9dcae7a533263fd7fe66490f550d80076433340831604", b1.getHashAsString());
  b1.verifyHeader();
  return b1;
}

代码示例来源：origin: greenaddress/GreenBits

@Test
public void testBasicChaining() throws Exception {
  // Check that we can plug a few blocks together and the futures work.
  ListenableFuture<StoredBlock> future = testNetChain.getHeightFuture(2);
  // Block 1 from the testnet.
  Block b1 = getBlock1();
  assertTrue(testNetChain.add(b1));
  assertFalse(future.isDone());
  // Block 2 from the testnet.
  Block b2 = getBlock2();
  // Let's try adding an invalid block.
  long n = b2.getNonce();
  try {
    b2.setNonce(12345);
    testNetChain.add(b2);
    fail();
  } catch (VerificationException e) {
    b2.setNonce(n);
  }
  // Now it works because we reset the nonce.
  assertTrue(testNetChain.add(b2));
  assertTrue(future.isDone());
  assertEquals(2, future.get().getHeight());
}

代码示例来源：origin: greenaddress/GreenBits

bad.setNonce(140548933);
bad.setTime(1279242649);
bad.setPrevBlockHash(b2.getHash());

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