def load(self, genesis_block):
        height = self.state.get_mainchain_height()

        if height == -1:
            self.state.put_block(genesis_block, None)
            block_number_mapping = qrl_pb2.BlockNumberMapping(headerhash=genesis_block.headerhash,
                                                              prev_headerhash=genesis_block.prev_headerhash)

            self.state.put_block_number_mapping(genesis_block.block_number, block_number_mapping, None)
            parent_difficulty = StringToUInt256(str(config.dev.genesis_difficulty))

            self.current_difficulty, _ = DifficultyTracker.get(
                measurement=config.dev.mining_setpoint_blocktime,
                parent_difficulty=parent_difficulty)

            block_metadata = BlockMetadata.create()

            block_metadata.set_orphan(False)
            block_metadata.set_block_difficulty(self.current_difficulty)
            block_metadata.set_cumulative_difficulty(self.current_difficulty)

            self.state.put_block_metadata(genesis_block.headerhash, block_metadata, None)
            addresses_state = dict()
            for genesis_balance in GenesisBlock().genesis_balance:
                bytes_addr = genesis_balance.address
                addresses_state[bytes_addr] = AddressState.get_default(bytes_addr)
                addresses_state[bytes_addr]._data.balance = genesis_balance.balance
            self.state.state_objects.update_current_state(addresses_state)
            self.state.state_objects.push(genesis_block.headerhash)
        else:
            self.last_block = self.get_block_by_number(height)
            self.current_difficulty = self.state.get_block_metadata(self.last_block.headerhash).block_difficulty
Ejemplo n.º 2
0
    def _add_block_metadata(self, headerhash, block_timestamp,
                            parent_headerhash, batch):
        block_metadata = self._state.get_block_metadata(headerhash)
        if not block_metadata:
            block_metadata = BlockMetadata.create()

        parent_metadata = self._state.get_block_metadata(parent_headerhash)

        parent_block_difficulty = parent_metadata.block_difficulty
        parent_cumulative_difficulty = parent_metadata.cumulative_difficulty

        block_metadata.update_last_headerhashes(
            parent_metadata.last_N_headerhashes, parent_headerhash)
        measurement = self._state.get_measurement(block_timestamp,
                                                  parent_headerhash,
                                                  parent_metadata)

        block_difficulty, _ = DifficultyTracker.get(
            measurement=measurement, parent_difficulty=parent_block_difficulty)

        block_cumulative_difficulty = StringToUInt256(
            str(
                int(UInt256ToString(block_difficulty)) +
                int(UInt256ToString(parent_cumulative_difficulty))))

        block_metadata.set_block_difficulty(block_difficulty)
        block_metadata.set_cumulative_difficulty(block_cumulative_difficulty)

        parent_metadata.add_child_headerhash(headerhash)
        self._state.put_block_metadata(parent_headerhash, parent_metadata,
                                       batch)
        self._state.put_block_metadata(headerhash, block_metadata, batch)

        return block_metadata
Ejemplo n.º 3
0
    def load(self, genesis_block):
        height = self.state.get_mainchain_height()

        if height == -1:
            self.state.put_block(genesis_block, None)
            block_number_mapping = qrl_pb2.BlockNumberMapping(headerhash=genesis_block.headerhash,
                                                              prev_headerhash=genesis_block.prev_headerhash)

            self.state.put_block_number_mapping(genesis_block.block_number, block_number_mapping, None)
            parent_difficulty = StringToUInt256(str(config.dev.genesis_difficulty))

            self.current_difficulty, _ = self._difficulty_tracker.get(
                measurement=config.dev.mining_setpoint_blocktime,
                parent_difficulty=parent_difficulty)

            block_metadata = BlockMetadata.create()

            block_metadata.set_orphan(False)
            block_metadata.set_block_difficulty(self.current_difficulty)
            block_metadata.set_cumulative_difficulty(self.current_difficulty)

            self.state.put_block_metadata(genesis_block.headerhash, block_metadata, None)
            addresses_state = dict()
            for genesis_balance in GenesisBlock().genesis_balance:
                bytes_addr = genesis_balance.address.encode()
                addresses_state[bytes_addr] = AddressState.get_default(bytes_addr)
                addresses_state[bytes_addr]._data.balance = genesis_balance.balance
            self.state.state_objects.update_current_state(addresses_state)
            self.state.state_objects.push(genesis_block.headerhash)
        else:
            self.last_block = self.get_block_by_number(height)
            self.current_difficulty = self.state.get_block_metadata(self.last_block.headerhash).block_difficulty
Ejemplo n.º 4
0
    def test_GetBlockMiningCompatible(self):
        p2p_factory = Mock(spec=P2PFactory)
        p2p_factory.sync_state = SyncState()
        p2p_factory.num_connections = 23
        p2p_factory.pow = Mock()

        chain_manager = Mock(spec=ChainManager)
        chain_manager.height = 0
        chain_manager.get_last_block = MagicMock(return_value=Block())

        qrlnode = QRLNode(mining_address=b'')
        qrlnode.set_chain_manager(chain_manager)
        qrlnode._p2pfactory = p2p_factory
        qrlnode._pow = p2p_factory.pow

        block_header = BlockHeader.create(blocknumber=10,
                                          prev_headerhash=sha256(b'prevblock'),
                                          prev_timestamp=1234567890,
                                          hashedtransactions=sha256(b'tx1'),
                                          fee_reward=1)

        qrlnode.get_blockheader_and_metadata = MagicMock(
            return_value=[block_header, BlockMetadata()])

        service = MiningAPIService(qrlnode)
        req = qrlmining_pb2.GetBlockMiningCompatibleReq(height=10)

        answer = service.GetBlockMiningCompatible(request=req, context=None)

        self.assertEqual(10, answer.blockheader.block_number)
        self.assertEqual(1, answer.blockheader.reward_fee)
Ejemplo n.º 5
0
    def test_put_block_metadata(self):
        with set_qrl_dir('no_data'):
            with State() as state:
                block_metadata = BlockMetadata.create()
                block_metadata.update_last_headerhashes([b'test1', b'test2'], b'test3')

                state.put_block_metadata(b'block_headerhash', block_metadata, None)
                state.put_block_metadata(b'block_headerhash2', BlockMetadata.create(), None)

                self.assertEqual(state.get_block_metadata(b'block_headerhash').to_json(),
                                 block_metadata.to_json())

                expected_json = b'{\n  "blockDifficulty": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=",\n  ' \
                                b'"cumulativeDifficulty": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="\n}'

                self.assertEqual(state.get_block_metadata(b'block_headerhash2').to_json(),
                                 expected_json)
Ejemplo n.º 6
0
def gen_blocks(block_count, state, miner_address):
    blocks = []
    block = None
    with mock.patch('qrl.core.misc.ntp.getTime') as time_mock:
        time_mock.return_value = 1615270948
        addresses_state = dict()
        for i in range(0, block_count):
            if i == 0:
                block = GenesisBlock()
                for genesis_balance in GenesisBlock().genesis_balance:
                    bytes_addr = genesis_balance.address
                    addresses_state[bytes_addr] = AddressState.get_default(
                        bytes_addr)
                    addresses_state[
                        bytes_addr]._data.balance = genesis_balance.balance
            else:
                block = Block.create(block_number=i,
                                     prev_headerhash=block.headerhash,
                                     prev_timestamp=block.timestamp,
                                     transactions=[],
                                     miner_address=miner_address)
                addresses_set = state.prepare_address_list(block)
                for address in addresses_set:
                    addresses_state[address] = state.get_address_state(address)
                for tx_protobuf in block.transactions:
                    tx = Transaction.from_pbdata(tx_protobuf)
                    tx.apply_state_changes(addresses_state)

                block.set_nonces(10, 0)
            blocks.append(block)

            metadata = BlockMetadata()
            metadata.set_block_difficulty(StringToUInt256('256'))
            state.put_block_metadata(block.headerhash, metadata, None)

            state.put_block(block, None)
            bm = qrl_pb2.BlockNumberMapping(
                headerhash=block.headerhash,
                prev_headerhash=block.prev_headerhash)

            state.put_block_number_mapping(block.block_number, bm, None)
            state.update_mainchain_height(block.block_number, None)
            state.put_addresses_state(addresses_state)

    return blocks
Ejemplo n.º 7
0
    def add_block_metadata(self, headerhash, block_timestamp,
                           parent_headerhash, batch):
        block_metadata = self.state.get_block_metadata(headerhash)
        if not block_metadata:
            block_metadata = BlockMetadata.create()

        parent_metadata = self.state.get_block_metadata(parent_headerhash)
        block_difficulty = (0, ) * 32  # 32 bytes to represent 256 bit of 0
        block_cumulative_difficulty = (
            0, ) * 32  # 32 bytes to represent 256 bit of 0
        if not parent_metadata:
            parent_metadata = BlockMetadata.create()
        else:
            parent_block = self.state.get_block(parent_headerhash)
            if parent_block:
                parent_block_difficulty = parent_metadata.block_difficulty
                parent_cumulative_difficulty = parent_metadata.cumulative_difficulty

                if not parent_metadata.is_orphan:
                    block_metadata.update_last_headerhashes(
                        parent_metadata.last_N_headerhashes, parent_headerhash)
                    measurement = self.state.get_measurement(
                        block_timestamp, parent_headerhash, parent_metadata)

                    block_difficulty, _ = DifficultyTracker.get(
                        measurement=measurement,
                        parent_difficulty=parent_block_difficulty)

                    block_cumulative_difficulty = StringToUInt256(
                        str(
                            int(UInt256ToString(block_difficulty)) +
                            int(UInt256ToString(parent_cumulative_difficulty)))
                    )

        block_metadata.set_orphan(parent_metadata.is_orphan)
        block_metadata.set_block_difficulty(block_difficulty)
        block_metadata.set_cumulative_difficulty(block_cumulative_difficulty)

        parent_metadata.add_child_headerhash(headerhash)
        self.state.put_block_metadata(parent_headerhash, parent_metadata,
                                      batch)
        self.state.put_block_metadata(headerhash, block_metadata, batch)

        # Call once to populate the cache
        self.state.get_block_datapoint(headerhash)
Ejemplo n.º 8
0
    def test_put_block_metadata(self):
        with set_qrl_dir('no_data'):
            with State() as state:
                block_metadata = BlockMetadata.create(False)
                block_metadata.update_last_headerhashes([b'test1', b'test2'],
                                                        b'test3')

                state.put_block_metadata(b'block_headerhash', block_metadata,
                                         None)
                state.put_block_metadata(b'block_headerhash2', BlockMetadata(),
                                         None)

                self.assertEqual(
                    state.get_block_metadata(b'block_headerhash').to_json(),
                    block_metadata.to_json())
                self.assertEqual(
                    state.get_block_metadata(b'block_headerhash2').to_json(),
                    b'{}')
Ejemplo n.º 9
0
 def test_get_block_metadata(self):
     with set_qrl_dir('no_data'):
         with State() as state:
             self.assertIsNone(state.get_block_metadata(b'test1'))
             state.put_block_metadata(b'block_headerhash2', BlockMetadata(),
                                      None)
             self.assertEqual(
                 state.get_block_metadata(b'block_headerhash2').to_json(),
                 b'{}')
Ejemplo n.º 10
0
    def test_get_measurement(self):
        def block(headerhash):
            nth_block = Block()
            if headerhash == b'test_block_1':
                nth_block.blockheader._data.timestamp_seconds = 50000
            elif headerhash == b'test_block_2':
                nth_block.blockheader._data.timestamp_seconds = 80000
            elif headerhash == b'test_block_3':
                nth_block.blockheader._data.timestamp_seconds = 90000
            return nth_block

        with set_qrl_dir('no_data'):
            with State() as state:
                parent_metadata = BlockMetadata.create(block_difficulty=b'\x00' * 32,
                                                       cumulative_difficulty=b'\x00' * 32,
                                                       child_headerhashes=[])

                measurement = state.get_measurement(block_timestamp=100000,
                                                    parent_headerhash=b'',
                                                    parent_metadata=parent_metadata)

                # Test Case, when count_headerhashes equals 0
                self.assertEqual(measurement, config.dev.mining_setpoint_blocktime)

                state.get_block = MagicMock(side_effect=block)
                parent_metadata.update_last_headerhashes([], b'test_block_1')

                measurement = state.get_measurement(block_timestamp=100000,
                                                    parent_headerhash=b'test_block_1',
                                                    parent_metadata=parent_metadata)

                # Test Case, when count_headerhashes equals 1
                self.assertEqual(measurement,
                                 (100000 - 50000 + config.dev.mining_setpoint_blocktime) // 2)

                parent_metadata.update_last_headerhashes([b'test_block_1'], b'test_block_2')

                measurement = state.get_measurement(block_timestamp=100000,
                                                    parent_headerhash=b'test_block_2',
                                                    parent_metadata=parent_metadata)

                # Test Case, when count_headerhashes is greater than 1
                # but less than config.dev.N_measurement
                self.assertEqual(measurement,
                                 (100000 - 80000 + config.dev.mining_setpoint_blocktime) // 2)

                parent_metadata.update_last_headerhashes([b'test_block_3'] * config.dev.N_measurement,
                                                         b'test_block_2')

                measurement = state.get_measurement(block_timestamp=100000,
                                                    parent_headerhash=b'test_block_2',
                                                    parent_metadata=parent_metadata)

                # Test Case, when count_headerhashes is greater than config.dev.N_measurement
                self.assertEqual(measurement,
                                 (100000 - 90000) // config.dev.N_measurement)
Ejemplo n.º 11
0
    def load(self, genesis_block):
        height = self.state.get_mainchain_height()

        if height == -1:
            self.state.put_block(genesis_block, None)
            block_number_mapping = qrl_pb2.BlockNumberMapping(headerhash=genesis_block.headerhash,
                                                              prev_headerhash=genesis_block.prev_headerhash)

            self.state.put_block_number_mapping(genesis_block.block_number, block_number_mapping, None)
            parent_difficulty = StringToUInt256(str(config.dev.genesis_difficulty))

            self.current_difficulty, _ = DifficultyTracker.get(
                measurement=config.dev.mining_setpoint_blocktime,
                parent_difficulty=parent_difficulty)

            block_metadata = BlockMetadata.create()

            block_metadata.set_orphan(False)
            block_metadata.set_block_difficulty(self.current_difficulty)
            block_metadata.set_cumulative_difficulty(self.current_difficulty)

            self.state.put_block_metadata(genesis_block.headerhash, block_metadata, None)
            addresses_state = dict()
            for genesis_balance in GenesisBlock().genesis_balance:
                bytes_addr = genesis_balance.address
                addresses_state[bytes_addr] = AddressState.get_default(bytes_addr)
                addresses_state[bytes_addr]._data.balance = genesis_balance.balance

            for tx_idx in range(1, len(genesis_block.transactions)):
                tx = Transaction.from_pbdata(genesis_block.transactions[tx_idx])
                for addr in tx.addrs_to:
                    addresses_state[addr] = AddressState.get_default(addr)

            coinbase_tx = Transaction.from_pbdata(genesis_block.transactions[0])

            if not isinstance(coinbase_tx, CoinBase):
                return False

            addresses_state[coinbase_tx.addr_to] = AddressState.get_default(coinbase_tx.addr_to)

            if not coinbase_tx.validate_extended():
                return False

            coinbase_tx.apply_on_state(addresses_state)

            for tx_idx in range(1, len(genesis_block.transactions)):
                tx = Transaction.from_pbdata(genesis_block.transactions[tx_idx])
                tx.apply_on_state(addresses_state)

            self.state.state_objects.update_current_state(addresses_state)
            self.state.state_objects.update_tx_metadata(genesis_block, None)
            self.state.state_objects.push(genesis_block.headerhash)
        else:
            self.last_block = self.get_block_by_number(height)
            self.current_difficulty = self.state.get_block_metadata(self.last_block.headerhash).block_difficulty
Ejemplo n.º 12
0
    def test_block_metadata(self):
        with set_data_dir('no_data'):
            with State() as state:
                alice_xmss = get_alice_xmss()
                blocks = gen_blocks(20, state, alice_xmss.address)

                for block in blocks:
                    state.put_block_metadata(block.headerhash, BlockMetadata(), None)

                for block in blocks:
                    self.assertEqual(state.get_block_metadata(block.headerhash).to_json(), b'{}')
Ejemplo n.º 13
0
    def get_block_metadata(self, header_hash: bytes) -> Optional[BlockMetadata]:
        try:
            json_data = self._db.get_raw(b'metadata_' + bin2hstr(header_hash).encode())
            return BlockMetadata.from_json(json_data)
        except KeyError:
            logger.debug('[get_block_metadata] Block header_hash %s not found',
                         b'metadata_' + bin2hstr(header_hash).encode())
        except Exception as e:
            logger.error('[get_block_metadata] %s', e)

        return None
Ejemplo n.º 14
0
Archivo: State.py Proyecto: fanff/QRL
    def get_block_metadata(self, header_hash: bytes) -> Optional[BlockMetadata]:
        try:
            json_data = self._db.get_raw(b'metadata_' + bin2hstr(header_hash).encode())
            return BlockMetadata.from_json(json_data)
        except KeyError:
            logger.debug('[get_block_metadata] Block header_hash %s not found',
                         b'metadata_' + bin2hstr(header_hash).encode())
        except Exception as e:
            logger.error('[get_block_metadata] %s', e)

        return None
Ejemplo n.º 15
0
def gen_blocks(block_count, state, miner_address):
        blocks = []
        with mock.patch('qrl.core.misc.ntp.getTime') as time_mock:
            time_mock.return_value = 1615270948
            prev_hash = bytes(sha2_256(b'test'))
            for i in range(0, block_count):
                block = Block.create(block_number=i,
                                     prevblock_headerhash=prev_hash,
                                     transactions=[],
                                     miner_address=miner_address)
                block.set_nonces(10, 0)
                blocks.append(block)

                metadata = BlockMetadata()
                metadata.set_block_difficulty(256)
                state.put_block_metadata(block.headerhash, metadata, None)

                state.put_block(block, None)
                prev_hash = bytes(block.headerhash)

        return blocks
Ejemplo n.º 16
0
    def test_get_block_metadata(self):
        with set_qrl_dir('no_data'):
            with State() as state:
                self.assertIsNone(state.get_block_metadata(b'test1'))
                state.put_block_metadata(b'block_headerhash2', BlockMetadata.create(), None)

                tmp_json = state.get_block_metadata(b'block_headerhash2').to_json()

                expected_json = b'{\n  "blockDifficulty": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=",\n  ' \
                                b'"cumulativeDifficulty": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="\n}'

                self.assertEqual(tmp_json, expected_json)
Ejemplo n.º 17
0
    def test_GetLastBlockHeader(self):
        self.block_header_params["blocknumber"] = 20
        block_header = BlockHeader.create(**self.block_header_params)
        self.chain_manager.height = 200
        self.qrlnode.get_blockheader_and_metadata = MagicMock(
            return_value=[block_header, BlockMetadata()])

        req = qrlmining_pb2.GetLastBlockHeaderReq(height=20)
        answer = self.service.GetLastBlockHeader(request=req, context=None)

        self.assertEqual(180, answer.depth)
        self.assertEqual(200, answer.height)
Ejemplo n.º 18
0
    def add_block_metadata(self,
                           headerhash,
                           block_timestamp,
                           parent_headerhash,
                           batch):
        parent_metadata = self.state.get_block_metadata(parent_headerhash)
        block_difficulty = (0,) * 32  # 32 bytes to represent 256 bit of 0
        block_cumulative_difficulty = (0,) * 32  # 32 bytes to represent 256 bit of 0
        if not parent_metadata:
            parent_metadata = BlockMetadata.create()
        else:
            parent_block = self.state.get_block(parent_headerhash)
            if parent_block:
                parent_block_difficulty = parent_metadata.block_difficulty
                parent_cumulative_difficulty = parent_metadata.cumulative_difficulty

                if not parent_metadata.is_orphan:
                    measurement = self.state.get_measurement(block_timestamp, parent_headerhash)

                    block_difficulty, _ = self._difficulty_tracker.get(
                        measurement=measurement,
                        parent_difficulty=parent_block_difficulty)

                    block_cumulative_difficulty = StringToUInt256(str(
                        int(UInt256ToString(block_difficulty)) +
                        int(UInt256ToString(parent_cumulative_difficulty))))

        block_metadata = self.state.get_block_metadata(headerhash)
        if not block_metadata:
            block_metadata = BlockMetadata.create()

        block_metadata.set_orphan(parent_metadata.is_orphan)
        block_metadata.set_block_difficulty(block_difficulty)
        block_metadata.set_cumulative_difficulty(block_cumulative_difficulty)
        parent_metadata.add_child_headerhash(headerhash)
        self.state.put_block_metadata(parent_headerhash, parent_metadata, batch)
        self.state.put_block_metadata(headerhash, block_metadata, batch)
Ejemplo n.º 19
0
    def test_GetBlockMiningCompatible(self):
        block_header = BlockHeader.create(**self.block_header_params)
        self.qrlnode.get_blockheader_and_metadata = MagicMock(
            return_value=[block_header, BlockMetadata()])

        req = qrlmining_pb2.GetBlockMiningCompatibleReq(height=10)
        answer = self.service.GetBlockMiningCompatible(request=req,
                                                       context=None)

        self.assertEqual(10, answer.blockheader.block_number)
        self.assertEqual(1, answer.blockheader.reward_fee)

        # if QRLNode responds with None, None, the GRPC response should be blank too
        self.qrlnode.get_blockheader_and_metadata = MagicMock(
            return_value=[None, None])
        answer = self.service.GetBlockMiningCompatible(request=req,
                                                       context=None)
        self.assertEqual(0, answer.blockheader.block_number)
        self.assertEqual(0, answer.blockheader.reward_fee)
Ejemplo n.º 20
0
Archivo: State.py Proyecto: som-dev/QRL
 def put_block_metadata(self, headerhash: bytes,
                        block_metadata: BlockMetadata, batch):
     self._db.put_raw(b'metadata_' + bin2hstr(headerhash).encode(),
                      block_metadata.to_json(), batch)
Ejemplo n.º 21
0
    def load(self, genesis_block):
        # load() has the following tasks:
        # Write Genesis Block into State immediately
        # Register block_number <-> blockhash mapping
        # Calculate difficulty Metadata for Genesis Block
        # Generate AddressStates from Genesis Block balances
        # Apply Genesis Block's transactions to the state
        # Detect if we are forked from genesis block and if so initiate recovery.
        height = self._state.get_mainchain_height()

        if height == -1:
            self._state.put_block(genesis_block, None)
            block_number_mapping = qrl_pb2.BlockNumberMapping(
                headerhash=genesis_block.headerhash,
                prev_headerhash=genesis_block.prev_headerhash)

            self._state.put_block_number_mapping(genesis_block.block_number,
                                                 block_number_mapping, None)
            parent_difficulty = StringToUInt256(
                str(config.user.genesis_difficulty))

            self.current_difficulty, _ = DifficultyTracker.get(
                measurement=config.dev.mining_setpoint_blocktime,
                parent_difficulty=parent_difficulty)

            block_metadata = BlockMetadata.create()
            block_metadata.set_block_difficulty(self.current_difficulty)
            block_metadata.set_cumulative_difficulty(self.current_difficulty)

            self._state.put_block_metadata(genesis_block.headerhash,
                                           block_metadata, None)
            addresses_state = dict()
            for genesis_balance in GenesisBlock().genesis_balance:
                bytes_addr = genesis_balance.address
                addresses_state[bytes_addr] = AddressState.get_default(
                    bytes_addr)
                addresses_state[
                    bytes_addr]._data.balance = genesis_balance.balance

            for tx_idx in range(1, len(genesis_block.transactions)):
                tx = Transaction.from_pbdata(
                    genesis_block.transactions[tx_idx])
                for addr in tx.addrs_to:
                    addresses_state[addr] = AddressState.get_default(addr)

            coinbase_tx = Transaction.from_pbdata(
                genesis_block.transactions[0])

            if not isinstance(coinbase_tx, CoinBase):
                return False

            addresses_state[coinbase_tx.addr_to] = AddressState.get_default(
                coinbase_tx.addr_to)

            if not coinbase_tx.validate_extended(genesis_block.block_number):
                return False

            coinbase_tx.apply_state_changes(addresses_state)

            for tx_idx in range(1, len(genesis_block.transactions)):
                tx = Transaction.from_pbdata(
                    genesis_block.transactions[tx_idx])
                tx.apply_state_changes(addresses_state)

            self._state.put_addresses_state(addresses_state)
            self._state.update_tx_metadata(genesis_block, None)
            self._state.update_mainchain_height(0, None)
        else:
            self._last_block = self.get_block_by_number(height)
            self.current_difficulty = self._state.get_block_metadata(
                self._last_block.headerhash).block_difficulty
            fork_state = self._state.get_fork_state()
            if fork_state:
                block = self._state.get_block(fork_state.initiator_headerhash)
                self._fork_recovery(block, fork_state)
Ejemplo n.º 22
0
 def put_block_metadata(self, headerhash: bytes,
                        block_metadata: BlockMetadata, batch):
     self._db.put_raw(b'metadata_' + headerhash, block_metadata.serialize(),
                      batch)
Ejemplo n.º 23
0
def gen_blocks(block_count, state, miner_address):
    blocks = []
    block = None
    with mock.patch('qrl.core.misc.ntp.getTime') as time_mock:
        time_mock.return_value = 1615270948
        addresses_state = dict()
        for i in range(0, block_count):
            if i == 0:
                block = GenesisBlock()
                for genesis_balance in GenesisBlock().genesis_balance:
                    bytes_addr = genesis_balance.address
                    addresses_state[
                        bytes_addr] = OptimizedAddressState.get_default(
                            bytes_addr)
                    addresses_state[
                        bytes_addr]._data.balance = genesis_balance.balance
            else:
                block = Block.create(dev_config=config.dev,
                                     block_number=i,
                                     prev_headerhash=block.headerhash,
                                     prev_timestamp=block.timestamp,
                                     transactions=[],
                                     miner_address=miner_address,
                                     seed_height=None,
                                     seed_hash=None)
                addresses_set = ChainManager.set_affected_address(block)
                coin_base_tx = Transaction.from_pbdata(block.transactions[0])
                coin_base_tx.set_affected_address(addresses_set)

                chain_manager = ChainManager(state)
                state_container = chain_manager.new_state_container(
                    addresses_set, block.block_number, False, None)
                coin_base_tx.apply(state, state_container)

                for tx_idx in range(1, len(block.transactions)):
                    tx = Transaction.from_pbdata(block.transactions[tx_idx])
                    if not chain_manager.update_state_container(
                            tx, state_container):
                        return False
                    tx.apply(state, state_container)

                block.set_nonces(dev_config=config.dev,
                                 mining_nonce=10,
                                 extra_nonce=0)
            blocks.append(block)

            metadata = BlockMetadata()
            metadata.set_block_difficulty(StringToUInt256('256'))
            BlockMetadata.put_block_metadata(state, block.headerhash, metadata,
                                             None)

            Block.put_block(state, block, None)
            bm = qrl_pb2.BlockNumberMapping(
                headerhash=block.headerhash,
                prev_headerhash=block.prev_headerhash)

            Block.put_block_number_mapping(state, block.block_number, bm, None)
            state.update_mainchain_height(block.block_number, None)
            OptimizedAddressState.put_optimized_addresses_state(
                state, addresses_state)

    return blocks