Examples with AccountState org.aion.mcf.core.AccountState used on opensource projects

Example 21 with AccountState

use of org.aion.mcf.core.AccountState 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();
}