Examples with DataWord org.aion.mcf.vm.types.DataWord used on opensource projects

Example 26 with DataWord

use of org.aion.mcf.vm.types.DataWord in project aion by aionnetwork.

the class AionRepositoryImpl method loadAccountState.

/**
 * @implNote The loaded objects are fresh copies of the original account
 *           state and contract details.
 */
@Override
public synchronized void loadAccountState(Address address, Map<Address, AccountState> cacheAccounts, Map<Address, IContractDetails<DataWord>> cacheDetails) {
    AccountState account = getAccountState(address);
    IContractDetails<DataWord> details = getContractDetails(address);
    account = (account == null) ? new AccountState() : new AccountState(account);
    details = new ContractDetailsCacheImpl(details);
    // details.setAddress(addr);
    cacheAccounts.put(address, account);
    cacheDetails.put(address, details);
}

Example 27 with DataWord

use of org.aion.mcf.vm.types.DataWord in project aion by aionnetwork.

the class AionRepositoryImpl method getContractDetails.

@Override
public synchronized IContractDetails<DataWord> getContractDetails(Address address) {
    rwLock.readLock().lock();
    try {
        // That part is important cause if we have
        // to sync details storage according the trie root
        // saved in the account
        AccountState accountState = getAccountState(address);
        byte[] storageRoot = EMPTY_TRIE_HASH;
        if (accountState != null) {
            storageRoot = getAccountState(address).getStateRoot();
        }
        IContractDetails<DataWord> details = detailsDS.get(address.toBytes());
        if (details != null) {
            details = details.getSnapshotTo(storageRoot);
        }
        return details;
    } finally {
        rwLock.readLock().unlock();
    }
}

Example 28 with DataWord

use of org.aion.mcf.vm.types.DataWord in project aion by aionnetwork.

the class AionContractDetailsImpl method get.

@Override
public DataWord get(DataWord key) {
    DataWord result = DataWord.ZERO;
    byte[] data = storageTrie.get(key.getData());
    if (data.length > 0) {
        byte[] dataDecoded = RLP.decode2(data).get(0).getRLPData();
        result = new DataWord(dataDecoded);
    }
    return result;
}

Example 29 with DataWord

use of org.aion.mcf.vm.types.DataWord in project aion by aionnetwork.

the class AionRepositoryCache method flush.

/**
 * @implNote To maintain intended functionality this method does not call
 *           the parent's {@code flush()} method. The changes are propagated
 *           to the parent through calling the parent's
 *           {@code updateBatch()} method.
 */
@Override
public synchronized void flush() {
    // determine which accounts should get stored
    HashMap<Address, AccountState> cleanedCacheAccounts = new HashMap<>();
    for (Map.Entry<Address, AccountState> entry : cachedAccounts.entrySet()) {
        AccountState account = entry.getValue();
        if (account != null && account.isDirty() && account.isEmpty()) {
            // ignore contract state for empty accounts at storage
            cachedDetails.remove(entry.getKey());
        } else {
            cleanedCacheAccounts.put(entry.getKey(), entry.getValue());
        }
    }
    // determine which contracts should get stored
    for (Map.Entry<Address, IContractDetails<DataWord>> entry : cachedDetails.entrySet()) {
        IContractDetails<DataWord> ctd = entry.getValue();
        // different ContractDetails implementation
        if (ctd != null && ctd instanceof ContractDetailsCacheImpl) {
            ContractDetailsCacheImpl contractDetailsCache = (ContractDetailsCacheImpl) ctd;
            contractDetailsCache.commit();
            if (contractDetailsCache.origContract == null && repository.hasContractDetails(entry.getKey())) {
                // in forked block the contract account might not exist thus
                // it is created without
                // origin, but on the main chain details can contain data
                // which should be merged
                // into a single storage trie so both branches with
                // different stateRoots are valid
                contractDetailsCache.origContract = repository.getContractDetails(entry.getKey());
                contractDetailsCache.commit();
            }
        }
    }
    repository.updateBatch(cleanedCacheAccounts, cachedDetails);
    cachedAccounts.clear();
    cachedDetails.clear();
}