Examples with ByteArrayWrapper org.aion.util.types.ByteArrayWrapper used on opensource projects

Example 51 with ByteArrayWrapper

use of org.aion.util.types.ByteArrayWrapper in project aion by aionnetwork.

the class ContractInformation method deserializeInformation.

private static Information deserializeInformation(SharedRLPList list) {
    // validity check
    if (list.size() != 2)
        return null;
    Information info = new Information();
    // validity check blocks
    RLPElement code = list.get(0);
    if (!(code.isList()))
        return null;
    for (RLPElement e : ((SharedRLPList) code)) {
        // validity check pair
        if (!(e.isList()))
            return null;
        SharedRLPList pair = (SharedRLPList) e;
        // validity check hash
        if (pair.size() != 2) {
            return null;
        }
        byte[] key = pair.get(0).getRLPData();
        if (key.length != HASH_SIZE) {
            return null;
        }
        // validity check completeness status
        byte[] flag = pair.get(1).getRLPData();
        if (flag.length > 1 || (flag.length == 1 && flag[0] != 1))
            return null;
        ByteArrayWrapper keyWrap = ByteArrayWrapper.wrap(key);
        // zero (i.e. false) decodes to empty byte array
        info.blocks.put(keyWrap, flag.length == 1);
    }
    // validity check VM
    byte[] array = list.get(1).getRLPData();
    if (array.length != 1)
        return null;
    info.vm = InternalVmType.getInstance(array[0]);
    // return correct instance
    return info;
}

Example 52 with ByteArrayWrapper

use of org.aion.util.types.ByteArrayWrapper in project aion by aionnetwork.

the class FvmContractDetails method getEncoded.

/**
 * Returns an rlp encoding of this FvmContractDetails object.
 *
 * <p>The encoding is a list of 3 elements:<br>
 * { 0:address, 1:storageRoot, 2:code }
 *
 * @return an rlp encoding of this.
 */
@Override
public byte[] getEncoded() {
    byte[] rlpAddress = RLP.encodeElement(address.toByteArray());
    byte[] rlpStorageRoot = RLP.encodeElement(storageTrie.getRootHash());
    byte[][] codes = new byte[getCodes().size()][];
    int i = 0;
    for (ByteArrayWrapper bytes : this.getCodes().values()) {
        codes[i++] = RLP.encodeElement(bytes.toBytes());
    }
    byte[] rlpCode = RLP.encodeList(codes);
    return RLP.encodeList(rlpAddress, rlpStorageRoot, rlpCode);
}

Example 53 with ByteArrayWrapper

use of org.aion.util.types.ByteArrayWrapper in project aion by aionnetwork.

the class AionRepositoryImpl method pruneBlocks.

private void pruneBlocks(long currentBlockNumber) {
    if (currentBlockNumber > bestBlockNumber) {
        // Prune only on increasing blocks
        long pruneBlockNumber = currentBlockNumber - pruneBlockCount;
        if (pruneBlockNumber >= 0) {
            byte[] pruneBlockHash = blockStore.getBlockHashByNumber(pruneBlockNumber);
            if (pruneBlockHash != null) {
                ByteArrayWrapper hash = ByteArrayWrapper.wrap(pruneBlockHash);
                stateDSPrune.prune(hash, pruneBlockNumber);
                detailsDS.getStorageDSPrune().prune(hash, pruneBlockNumber);
            }
        }
    }
    bestBlockNumber = currentBlockNumber;
}

Example 54 with ByteArrayWrapper

use of org.aion.util.types.ByteArrayWrapper in project aion by aionnetwork.

the class AionRepositoryImpl method getReferencedStorageNodes.

@VisibleForTesting
public List<byte[]> getReferencedStorageNodes(byte[] value, int limit, AionAddress contract) {
    if (limit <= 0) {
        return Collections.emptyList();
    } else {
        byte[] subKey = h256(("details-storage/" + contract.toString()).getBytes());
        ByteArrayKeyValueStore db = new XorDataSource(selectDatabase(DatabaseType.STORAGE), subKey, false);
        Trie trie = new SecureTrie(db);
        Map<ByteArrayWrapper, byte[]> refs = trie.getReferencedTrieNodes(value, limit);
        List<byte[]> converted = new ArrayList<>();
        for (ByteArrayWrapper key : refs.keySet()) {
            converted.add(ByteUtil.xorAlignRight(key.toBytes(), subKey));
        }
        return converted;
    }
}

Example 55 with ByteArrayWrapper

use of org.aion.util.types.ByteArrayWrapper in project aion by aionnetwork.

the class TrieTest method testGetMissingNodes_wCompleteTrie_wStartFromValue.

@Test
public void testGetMissingNodes_wCompleteTrie_wStartFromValue() {
    MockDB mockDB = new MockDB("temp", log);
    mockDB.open();
    TrieImpl trie = new TrieImpl(mockDB);
    for (Map.Entry<ByteArrayWrapper, byte[]> e : getSampleTrieUpdates().entrySet()) {
        trie.update(e.getKey().toBytes(), e.getValue());
    }
    trie.getCache().commitForTest();
    byte[] root = trie.getRootHash();
    byte[] value = mockDB.get(root).get();
    trie = new TrieImpl(mockDB);
    assertThat(trie.getMissingNodes(value)).isEmpty();
}