def create_minor_block(self, root_block: RootBlock, full_shard_id: int,
evm_state: EvmState) -> MinorBlock:
""" Create genesis block for shard.
Genesis block's hash_prev_root_block is set to the genesis root block.
Genesis state will be committed to the given evm_state.
Based on ALLOC, genesis_token will be added to initial accounts.
"""
branch = Branch(full_shard_id)
shard_config = self._qkc_config.shards[full_shard_id]
genesis = shard_config.GENESIS
for address_hex, alloc_amount in genesis.ALLOC.items():
address = Address.create_from(bytes.fromhex(address_hex))
check(
self._qkc_config.get_full_shard_id_by_full_shard_key(
address.full_shard_key) == full_shard_id)
evm_state.full_shard_key = address.full_shard_key
if isinstance(alloc_amount, dict):
for k, v in alloc_amount.items():
evm_state.delta_token_balance(address.recipient,
token_id_encode(k), v)
else:
evm_state.delta_token_balance(address.recipient,
self._qkc_config.genesis_token,
alloc_amount)
evm_state.commit()
meta = MinorBlockMeta(
hash_merkle_root=bytes.fromhex(genesis.HASH_MERKLE_ROOT),
hash_evm_state_root=evm_state.trie.root_hash,
)
local_fee_rate = 1 - self._qkc_config.reward_tax_rate # type: Fraction
coinbase_tokens = {
self._qkc_config.genesis_token:
shard_config.COINBASE_AMOUNT * local_fee_rate.numerator //
local_fee_rate.denominator
}
coinbase_address = Address.create_empty_account(full_shard_id)
header = MinorBlockHeader(
version=genesis.VERSION,
height=genesis.HEIGHT,
branch=branch,
hash_prev_minor_block=bytes.fromhex(genesis.HASH_PREV_MINOR_BLOCK),
hash_prev_root_block=root_block.header.get_hash(),
evm_gas_limit=genesis.GAS_LIMIT,
hash_meta=sha3_256(meta.serialize()),
coinbase_amount_map=TokenBalanceMap(coinbase_tokens),
coinbase_address=coinbase_address,
create_time=genesis.TIMESTAMP,
difficulty=genesis.DIFFICULTY,
extra_data=bytes.fromhex(genesis.EXTRA_DATA),
)
return (
MinorBlock(header=header, meta=meta, tx_list=[]),
TokenBalanceMap(coinbase_tokens),
)
def create_minor_block(self, root_block: RootBlock, shard_id: int,
evm_state: EvmState) -> MinorBlock:
""" Create genesis block for shard.
Genesis block's hash_prev_root_block is set to the genesis root block.
Genesis state will be committed to the given evm_state.
"""
branch = Branch.create(self._qkc_config.SHARD_SIZE, shard_id)
shard_config = self._qkc_config.SHARD_LIST[shard_id]
genesis = shard_config.GENESIS
for address_hex, amount_in_wei in genesis.ALLOC.items():
address = Address.create_from(bytes.fromhex(address_hex))
check(
address.get_shard_id(self._qkc_config.SHARD_SIZE) == shard_id)
evm_state.full_shard_id = address.full_shard_id
evm_state.delta_balance(address.recipient, amount_in_wei)
evm_state.commit()
meta = MinorBlockMeta(
hash_merkle_root=bytes.fromhex(genesis.HASH_MERKLE_ROOT),
hash_evm_state_root=evm_state.trie.root_hash,
)
local_fee_rate = 1 - self._qkc_config.reward_tax_rate # type: Fraction
coinbase_amount = (shard_config.COINBASE_AMOUNT *
local_fee_rate.numerator //
local_fee_rate.denominator)
coinbase_address = Address.create_empty_account(shard_id)
header = MinorBlockHeader(
version=genesis.VERSION,
height=genesis.HEIGHT,
branch=branch,
hash_prev_minor_block=bytes.fromhex(genesis.HASH_PREV_MINOR_BLOCK),
hash_prev_root_block=root_block.header.get_hash(),
evm_gas_limit=genesis.GAS_LIMIT,
hash_meta=sha3_256(meta.serialize()),
coinbase_amount=coinbase_amount,
coinbase_address=coinbase_address,
create_time=genesis.TIMESTAMP,
difficulty=genesis.DIFFICULTY,
extra_data=bytes.fromhex(genesis.EXTRA_DATA),
)
return MinorBlock(header=header, meta=meta, tx_list=[])
async def handle_get_transaction_request(self, req):
minor_block, i = self.slave_server.get_transaction_by_hash(
req.tx_hash, req.branch
)
if not minor_block:
empty_block = MinorBlock(MinorBlockHeader(), MinorBlockMeta())
return GetTransactionResponse(
error_code=1, minor_block=empty_block, index=0
)
return GetTransactionResponse(error_code=0, minor_block=minor_block, index=i)
def test_get_minor_block_by_hash(self):
db = ShardDbOperator(InMemoryDb(), DEFAULT_ENV, Branch(2))
block = MinorBlock(MinorBlockHeader(), MinorBlockMeta())
block_hash = block.header.get_hash()
db.put_minor_block(block, [])
self.assertEqual(db.get_minor_block_by_hash(block_hash), block)
self.assertIsNone(db.get_minor_block_by_hash(b""))
self.assertEqual(db.get_minor_block_header_by_hash(block_hash),
block.header)
self.assertIsNone(db.get_minor_block_header_by_hash(b""))
async def handle_get_transaction_receipt_request(self, req):
resp = self.slave_server.get_transaction_receipt(req.tx_hash, req.branch)
if not resp:
empty_block = MinorBlock(MinorBlockHeader(), MinorBlockMeta())
empty_receipt = TransactionReceipt.create_empty_receipt()
return GetTransactionReceiptResponse(
error_code=1, minor_block=empty_block, index=0, receipt=empty_receipt
)
minor_block, i, receipt = resp
return GetTransactionReceiptResponse(
error_code=0, minor_block=minor_block, index=i, receipt=receipt
)
async def handle_get_minor_block_request(self, req):
if req.minor_block_hash != bytes(32):
block = self.slave_server.get_minor_block_by_hash(
req.minor_block_hash, req.branch)
else:
block = self.slave_server.get_minor_block_by_height(
req.height, req.branch)
if not block:
empty_block = MinorBlock(MinorBlockHeader(), MinorBlockMeta())
return GetMinorBlockResponse(error_code=1, minor_block=empty_block)
return GetMinorBlockResponse(error_code=0, minor_block=block)
def create_minor_block(
self, root_block: RootBlock, full_shard_id: int,
evm_state: EvmState) -> Tuple[MinorBlock, TokenBalanceMap]:
""" Create genesis block for shard.
Genesis block's hash_prev_root_block is set to the genesis root block.
Genesis state will be committed to the given evm_state.
Based on ALLOC, genesis_token will be added to initial accounts.
"""
branch = Branch(full_shard_id)
shard_config = self._qkc_config.shards[full_shard_id]
genesis = shard_config.GENESIS
for address_hex, alloc_data in genesis.ALLOC.items():
address = Address.create_from(bytes.fromhex(address_hex))
check(
self._qkc_config.get_full_shard_id_by_full_shard_key(
address.full_shard_key) == full_shard_id)
evm_state.full_shard_key = address.full_shard_key
recipient = address.recipient
if "code" in alloc_data:
code = decode_hex(remove_0x_head(alloc_data["code"]))
evm_state.set_code(recipient, code)
evm_state.set_nonce(recipient, 1)
if "storage" in alloc_data:
for k, v in alloc_data["storage"].items():
evm_state.set_storage_data(
recipient,
big_endian_to_int(decode_hex(k[2:])),
big_endian_to_int(decode_hex(v[2:])),
)
# backward compatible:
# v1: {addr: {QKC: 1234}}
# v2: {addr: {balances: {QKC: 1234}, code: 0x, storage: {0x12: 0x34}}}
balances = alloc_data
if "balances" in alloc_data:
balances = alloc_data["balances"]
for k, v in balances.items():
if k in ("code", "storage"):
continue
evm_state.delta_token_balance(recipient, token_id_encode(k), v)
evm_state.commit()
meta = MinorBlockMeta(
hash_merkle_root=bytes.fromhex(genesis.HASH_MERKLE_ROOT),
hash_evm_state_root=evm_state.trie.root_hash,
xshard_tx_cursor_info=XshardTxCursorInfo(root_block.header.height,
0, 0),
)
local_fee_rate = 1 - self._qkc_config.reward_tax_rate # type: Fraction
coinbase_tokens = {
self._qkc_config.genesis_token:
shard_config.COINBASE_AMOUNT * local_fee_rate.numerator //
local_fee_rate.denominator
}
coinbase_address = Address.create_empty_account(full_shard_id)
header = MinorBlockHeader(
version=genesis.VERSION,
height=genesis.HEIGHT,
branch=branch,
hash_prev_minor_block=bytes.fromhex(genesis.HASH_PREV_MINOR_BLOCK),
hash_prev_root_block=root_block.header.get_hash(),
evm_gas_limit=genesis.GAS_LIMIT,
hash_meta=sha3_256(meta.serialize()),
coinbase_amount_map=TokenBalanceMap(coinbase_tokens),
coinbase_address=coinbase_address,
create_time=genesis.TIMESTAMP,
difficulty=genesis.DIFFICULTY,
extra_data=bytes.fromhex(genesis.EXTRA_DATA),
)
return (
MinorBlock(header=header, meta=meta, tx_list=[]),
TokenBalanceMap(coinbase_tokens),
)