bool leveldb_chain_keeper::end_slice(size_t slice_begin_index,
block_detail_list& sliced_blocks)
{
leveldb_transaction_batch batch;
leveldb_iterator it(db_.block->NewIterator(leveldb::ReadOptions()));
data_chunk raw_depth = uncast_type(slice_begin_index);
for (it->Seek(slice(raw_depth)); it->Valid(); it->Next())
{
block_detail_ptr sliced_block =
reconstruct_block(common_, it->value().ToString());
if (!sliced_block)
return false;
// Add to list of sliced blocks
sliced_blocks.push_back(sliced_block);
// Make sure to delete hash secondary index too.
const hash_digest& block_hash = sliced_block->hash();
// Delete block header...
batch.block.Delete(it->key());
// And it's secondary index.
batch.block_hash.Delete(slice_block_hash(block_hash));
// Remove txs + spends + addresses too
const auto& transactions = sliced_block->actual().transactions;
for (const transaction_type& block_tx: transactions)
if (!clear_transaction_data(batch, block_tx))
return false;
}
leveldb::WriteOptions options;
// Execute batches.
db_.write(batch);
return true;
}
bool simple_chain_impl::release(size_t begin_index,
block_detail_list& released_blocks)
{
const auto last_height = interface_.blocks.last_height();
BITCOIN_ASSERT(last_height != block_database::null_height);
BITCOIN_ASSERT_MSG(begin_index > 0, "This loop will underflow.");
for (size_t height = last_height; height >= begin_index; --height)
{
const auto block = std::make_shared<block_detail>(interface_.pop());
released_blocks.push_back(block);
}
return true;
}
bool leveldb_chain_keeper::end_slice(size_t slice_begin_index,
block_detail_list& sliced_blocks)
{
leveldb::WriteBatch blk_batch, blk_hash_batch;
leveldb_transaction_batch tx_batch;
leveldb_iterator it(db_blocks_->NewIterator(leveldb::ReadOptions()));
data_chunk raw_depth = uncast_type(slice_begin_index);
for (it->Seek(slice(raw_depth)); it->Valid(); it->Next())
{
std::stringstream ss;
ss.str(it->value().ToString());
protobuf::Block proto_block;
proto_block.ParseFromIstream(&ss);
// Convert protobuf block header into actual block
block_type sliced_block;
if (!reconstruct_block(common_, proto_block, sliced_block))
return false;
// Add to list of sliced blocks
block_detail_ptr sliced_detail =
std::make_shared<block_detail>(sliced_block);
sliced_blocks.push_back(sliced_detail);
// Make sure to delete hash secondary index too.
hash_digest block_hash = hash_block_header(sliced_block);
// Delete block header...
blk_batch.Delete(it->key());
// And it's secondary index.
blk_hash_batch.Delete(slice_block_hash(block_hash));
// Remove txs + spends + addresses too
for (const transaction_type& block_tx: sliced_block.transactions)
if (!clear_transaction_data(tx_batch, block_tx))
return false;
}
leveldb::WriteOptions options;
// Execute batches.
db_blocks_->Write(options, &blk_batch);
db_blocks_hash_->Write(options, &blk_hash_batch);
db_txs_->Write(options, &tx_batch.tx_batch);
db_spends_->Write(options, &tx_batch.spends_batch);
db_address_->Write(options, &tx_batch.address_batch);
return true;
}