Examples with ChainState org.hyperledger.besu.ethereum.eth.manager.ChainState used on opensource projects

Example 1 with ChainState

use of org.hyperledger.besu.ethereum.eth.manager.ChainState in project besu by hyperledger.

the class SyncStateTest method mockChainIsBetterThan.

private EthPeer mockChainIsBetterThan(final EthPeer peer, final boolean isBetter) {
    final ChainState chainState = spy(peer.chainState());
    final ChainHeadEstimate chainStateSnapshot = spy(peer.chainStateSnapshot());
    lenient().doReturn(isBetter).when(chainState).chainIsBetterThan(any());
    lenient().doReturn(isBetter).when(chainStateSnapshot).chainIsBetterThan(any());
    final EthPeer mockedPeer = spy(peer);
    lenient().doReturn(chainStateSnapshot).when(chainState).getSnapshot();
    lenient().doReturn(chainStateSnapshot).when(mockedPeer).chainStateSnapshot();
    lenient().doReturn(chainState).when(mockedPeer).chainState();
    return mockedPeer;
}

Example 2 with ChainState

use of org.hyperledger.besu.ethereum.eth.manager.ChainState in project besu by hyperledger.

the class BetterSyncTargetEvaluatorTest method peer.

private EthPeer peer(final long chainHeight, final long totalDifficulty) {
    final EthPeer peer = mock(EthPeer.class);
    final ChainState chainState = new ChainState();
    chainState.updateHeightEstimate(chainHeight);
    chainState.statusReceived(Hash.EMPTY, Difficulty.of(totalDifficulty));
    when(peer.chainState()).thenReturn(chainState);
    return peer;
}

Example 3 with ChainState

use of org.hyperledger.besu.ethereum.eth.manager.ChainState in project besu by hyperledger.

the class BetterSyncTargetEvaluator method shouldSwitchSyncTarget.

public boolean shouldSwitchSyncTarget(final EthPeer currentSyncTarget) {
    final ChainState currentPeerChainState = currentSyncTarget.chainState();
    final Optional<EthPeer> maybeBestPeer = ethPeers.bestPeer();
    return maybeBestPeer.map(bestPeer -> {
        if (EthPeers.BEST_CHAIN.compare(bestPeer, currentSyncTarget) <= 0) {
            // Our current target is better or equal to the best peer
            return false;
        }
        // Require some threshold to be exceeded before switching targets to keep some
        // stability when multiple peers are in range of each other
        final ChainState bestPeerChainState = bestPeer.chainState();
        final Difficulty tdDifference = bestPeerChainState.getEstimatedTotalDifficulty().subtract(currentPeerChainState.getBestBlock().getTotalDifficulty());
        if (tdDifference.compareTo(config.getDownloaderChangeTargetThresholdByTd()) > 0) {
            return true;
        }
        final long heightDifference = bestPeerChainState.getEstimatedHeight() - currentPeerChainState.getEstimatedHeight();
        return heightDifference > config.getDownloaderChangeTargetThresholdByHeight();
    }).orElse(false);
}

Example 4 with ChainState

use of org.hyperledger.besu.ethereum.eth.manager.ChainState in project besu by hyperledger.

the class TrailingPeerLimiterTest method addPeerWithEstimatedHeight.

private EthPeer addPeerWithEstimatedHeight(final long height) {
    final EthPeer peer = mock(EthPeer.class);
    final ChainState chainState = new ChainState();
    chainState.statusReceived(Hash.EMPTY, Difficulty.ONE);
    chainState.update(Hash.EMPTY, height);
    when(peer.chainState()).thenReturn(chainState);
    peers.add(peer);
    return peer;
}