Examples with BlockHeader org.ethereum.core.BlockHeader used on opensource projects

Example 41 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class DownloadingBodiesSyncState method tryFindBlockHeader.

private Optional<BlockHeader> tryFindBlockHeader(NodeID peerId) {
    // we start from the last chunk that can be downloaded
    for (int segmentNumber = segmentByNode.get(peerId); segmentNumber >= 0; segmentNumber--) {
        Deque<Integer> chunks = chunksBySegment.get(segmentNumber);
        // if the segment stack is empty then continue to next segment
        if (!chunks.isEmpty()) {
            int chunkNumber = chunks.pollLast();
            Deque<BlockHeader> headers = pendingHeaders.get(chunkNumber);
            BlockHeader header = headers.poll();
            while (header != null) {
                // we double check if the header was not downloaded or obtained by another way
                if (!syncInformation.isKnownBlock(header.getHash().getBytes())) {
                    chunksBeingDownloaded.put(peerId, chunkNumber);
                    segmentsBeingDownloaded.put(peerId, segmentNumber);
                    return Optional.of(header);
                }
                header = headers.poll();
            }
        }
    }
    return Optional.empty();
}

Example 42 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class DownloadingHeadersSyncState method newBlockHeaders.

@Override
public void newBlockHeaders(List<BlockHeader> chunk) {
    Optional<ChunkDescriptor> currentChunk = chunksDownloadHelper.getCurrentChunk();
    if (!currentChunk.isPresent() || chunk.size() != currentChunk.get().getCount() || !ByteUtil.fastEquals(chunk.get(0).getHash().getBytes(), currentChunk.get().getHash())) {
        syncEventsHandler.onErrorSyncing("Invalid chunk received from node {} {}", EventType.INVALID_MESSAGE, syncInformation.getSelectedPeerId(), currentChunk.get().getHash());
        return;
    }
    Deque<BlockHeader> headers = new ArrayDeque<>();
    // the headers come ordered by block number desc
    // we start adding the first parent header
    headers.add(chunk.get(chunk.size() - 1));
    for (int k = 1; k < chunk.size(); ++k) {
        BlockHeader parentHeader = chunk.get(chunk.size() - k);
        BlockHeader header = chunk.get(chunk.size() - k - 1);
        if (!syncInformation.blockHeaderIsValid(header, parentHeader)) {
            syncEventsHandler.onErrorSyncing("Invalid header received from node {} {} {}", EventType.INVALID_HEADER, syncInformation.getSelectedPeerId(), header.getNumber(), header.getShortHash());
            return;
        }
        headers.add(header);
    }
    pendingHeaders.add(headers);
    if (!chunksDownloadHelper.hasNextChunk()) {
        // Finished verifying headers
        syncEventsHandler.startDownloadingBodies(pendingHeaders, skeletons);
        return;
    }
    resetTimeElapsed();
    trySendRequest();
}

Example 43 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class BlockStoreTest method removeHeader.

@Test
public void removeHeader() {
    BlockStore store = new BlockStore();
    BlockHeader blockHeader = new BlockHeader(new byte[] {}, new byte[] {}, RskAddress.nullAddress().getBytes(), new Bloom().getData(), new byte[] {}, 1, new byte[] {}, 0, 0, new byte[] {}, new byte[] {}, new byte[] {}, new byte[] {}, new byte[] {}, 0);
    store.saveHeader(blockHeader);
    store.removeHeader(blockHeader);
    Assert.assertFalse(store.hasHeader(blockHeader.getHash()));
}

Example 44 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class NodeBlockProcessorUnclesTest method addBlockWithTwoUnknownUncles.

@Test
public void addBlockWithTwoUnknownUncles() throws UnknownHostException {
    BlockChainImpl blockChain = new BlockChainBuilder().build();
    NodeBlockProcessor processor = createNodeBlockProcessor(blockChain);
    Block genesis = processor.getBlockchain().getBestBlock();
    BlockBuilder blockBuilder = new BlockBuilder(blockChain, new BlockGenerator());
    Block block1 = blockBuilder.parent(genesis).build();
    Block uncle1 = blockBuilder.parent(genesis).build();
    Block uncle2 = blockBuilder.parent(genesis).build();
    List<BlockHeader> uncles = new ArrayList<>();
    uncles.add(uncle1.getHeader());
    uncles.add(uncle2.getHeader());
    Block block2 = blockBuilder.parent(block1).uncles(uncles).build();
    processor.processBlock(null, block1);
    SimpleMessageChannel sender = new SimpleMessageChannel();
    processor.processBlock(sender, block2);
    Assert.assertEquals(2, processor.getBlockchain().getBestBlock().getNumber());
    Assert.assertArrayEquals(block2.getHash().getBytes(), processor.getBlockchain().getBestBlockHash());
    Assert.assertEquals(0, sender.getGetBlockMessages().size());
}

Example 45 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class IndexedBlockStore method getListHeadersEndWith.

@Override
public synchronized List<BlockHeader> getListHeadersEndWith(byte[] hash, long qty) {
    List<Block> blocks = getListBlocksEndWith(hash, qty);
    List<BlockHeader> headers = new ArrayList<>(blocks.size());
    for (Block b : blocks) {
        headers.add(b.getHeader());
    }
    return headers;
}