1078 lines
44 KiB
Python
1078 lines
44 KiB
Python
from pybtc.functions.tools import rh2s, s2rh
|
|
from pybtc.functions.tools import var_int_to_int, var_int_len
|
|
from pybtc.functions.tools import read_var_int
|
|
from pybtc.functions.hash import double_sha256
|
|
from pybtc.transaction import Transaction
|
|
from pybtc import int_to_c_int, c_int_to_int, c_int_len, int_to_bytes
|
|
from pybtc.functions.block import bits_to_target, target_to_difficulty
|
|
from struct import unpack, pack
|
|
import sys
|
|
import traceback
|
|
import aiojsonrpc
|
|
import zmq
|
|
import zmq.asyncio
|
|
import asyncio
|
|
import time
|
|
import io
|
|
from collections import OrderedDict
|
|
import pylru
|
|
|
|
class Connector:
|
|
def __init__(self, node_rpc_url, node_zerromq_url, logger,
|
|
last_block_height=0, chain_tail=None,
|
|
tx_handler=None, orphan_handler=None,
|
|
before_block_handler=None, block_handler=None, after_block_handler=None,
|
|
block_timeout=30,
|
|
deep_sync_limit=20, backlog=0, mempool_tx=True,
|
|
rpc_batch_limit=50, rpc_threads_limit=100, rpc_timeout=100,
|
|
utxo_data=False,
|
|
utxo_cache_size=1000000,
|
|
skip_opreturn=True,
|
|
block_preload_cache_limit= 1000 * 1000000,
|
|
block_hashes_cache_limit= 200 * 1000000,
|
|
postgres_pool=None):
|
|
self.loop = asyncio.get_event_loop()
|
|
|
|
# settings
|
|
self.log = logger
|
|
self.rpc_url = node_rpc_url
|
|
self.zmq_url = node_zerromq_url
|
|
self.orphan_handler = orphan_handler
|
|
self.block_timeout = block_timeout
|
|
self.tx_handler = tx_handler
|
|
self.skip_opreturn = skip_opreturn
|
|
self.before_block_handler = before_block_handler
|
|
self.block_handler = block_handler
|
|
self.after_block_handler = after_block_handler
|
|
self.deep_sync_limit = deep_sync_limit
|
|
self.backlog = backlog
|
|
self.mempool_tx = mempool_tx
|
|
self.postgress_pool = postgres_pool
|
|
self.utxo_cache_size = utxo_cache_size
|
|
self.utxo_data = utxo_data
|
|
self.chain_tail = list(chain_tail) if chain_tail else []
|
|
self.rpc_timeout = rpc_timeout
|
|
self.batch_limit = rpc_batch_limit
|
|
|
|
# state and stats
|
|
self.node_last_block = None
|
|
self.utxo = None
|
|
self.cache_loading = False
|
|
self.app_block_height_on_start = int(last_block_height) if int(last_block_height) else 0
|
|
self.last_block_height = 0
|
|
self.last_block_utxo_cached_height = 0
|
|
self.deep_synchronization = False
|
|
|
|
self.block_dependency_tx = 0 # counter of tx that have dependencies in block
|
|
self.active = True
|
|
self.get_next_block_mutex = False
|
|
self.active_block = asyncio.Future()
|
|
self.active_block.set_result(True)
|
|
self.last_zmq_msg = int(time.time())
|
|
self.total_received_tx = 0
|
|
self.total_received_tx_stat = 0
|
|
self.blocks_processed_count = 0
|
|
self.blocks_decode_time = 0
|
|
self.blocks_download_time = 0
|
|
self.tx_processing_time = 0
|
|
self.non_cached_blocks = 0
|
|
self.total_received_tx_time = 0
|
|
self.start_time = time.time()
|
|
self.tmp = pylru.lrucache(1000000)
|
|
|
|
# cache and system
|
|
self.block_preload_cache_limit = block_preload_cache_limit
|
|
self.block_hashes_cache_limit = block_hashes_cache_limit
|
|
self.tx_cache_limit = 100 * 100000
|
|
self.block_headers_cache_limit = 100 * 100000
|
|
self.block_preload = Cache(max_size=self.block_preload_cache_limit, clear_tail=False)
|
|
self.block_hashes = Cache(max_size=self.block_hashes_cache_limit)
|
|
self.block_hashes_preload_mutex = False
|
|
self.tx_cache = Cache(max_size=self.tx_cache_limit)
|
|
self.block_headers_cache = Cache(max_size=self.block_headers_cache_limit)
|
|
|
|
self.block_txs_request = None
|
|
|
|
self.connected = asyncio.Future()
|
|
self.await_tx = list()
|
|
self.missed_tx = list()
|
|
self.await_tx_future = dict()
|
|
self.add_tx_future = dict()
|
|
self.get_missed_tx_threads = 0
|
|
self.get_missed_tx_threads_limit = rpc_threads_limit
|
|
self.tx_in_process = set()
|
|
self.zmqContext = None
|
|
self.tasks = list()
|
|
self.log.info("Node connector started")
|
|
asyncio.ensure_future(self.start(), loop=self.loop)
|
|
|
|
async def start(self):
|
|
await self.utxo_init()
|
|
|
|
while True:
|
|
self.log.info("Connector initialization")
|
|
try:
|
|
self.rpc = aiojsonrpc.rpc(self.rpc_url, self.loop, timeout=self.rpc_timeout)
|
|
self.node_last_block = await self.rpc.getblockcount()
|
|
except Exception as err:
|
|
self.log.error("Get node best block error:" + str(err))
|
|
if not isinstance(self.node_last_block, int):
|
|
self.log.error("Get node best block height failed")
|
|
self.log.error("Node rpc url: "+self.rpc_url)
|
|
await asyncio.sleep(10)
|
|
continue
|
|
|
|
self.log.info("Node best block height %s" %self.node_last_block)
|
|
self.log.info("Connector last block height %s" % self.last_block_height)
|
|
|
|
if self.node_last_block < self.last_block_height:
|
|
self.log.error("Node is behind application blockchain state!")
|
|
await asyncio.sleep(10)
|
|
continue
|
|
elif self.node_last_block == self.last_block_height:
|
|
self.log.warning("Blockchain is synchronized")
|
|
else:
|
|
d = self.node_last_block - self.last_block_height
|
|
self.log.warning("%s blocks before synchronization" % d)
|
|
if d > self.deep_sync_limit:
|
|
self.log.warning("Deep synchronization mode")
|
|
self.deep_synchronization = True
|
|
break
|
|
|
|
if self.utxo_data:
|
|
self.utxo = UTXO(self.postgress_pool,
|
|
self.loop,
|
|
self.log,
|
|
self.utxo_cache_size if self.deep_synchronization else 0)
|
|
|
|
h = self.last_block_height
|
|
if h < len(self.chain_tail):
|
|
raise Exception("Chain tail len not match last block height")
|
|
for row in reversed(self.chain_tail):
|
|
self.block_headers_cache.set(row, h)
|
|
h -= 1
|
|
|
|
self.tasks.append(self.loop.create_task(self.zeromq_handler()))
|
|
self.tasks.append(self.loop.create_task(self.watchdog()))
|
|
self.connected.set_result(True)
|
|
# if self.preload:
|
|
# self.loop.create_task(self.preload_block())
|
|
# self.loop.create_task(self.preload_block_hashes())
|
|
self.get_next_block_mutex = True
|
|
self.loop.create_task(self.get_next_block())
|
|
|
|
async def utxo_init(self):
|
|
if self.utxo_data:
|
|
if self.postgress_pool is None:
|
|
raise Exception("UTXO data required postgresql db connection pool")
|
|
|
|
async with self.postgress_pool.acquire() as conn:
|
|
await conn.execute("""CREATE TABLE IF NOT EXISTS
|
|
connector_utxo (outpoint BYTEA,
|
|
data BYTEA,
|
|
PRIMARY KEY(outpoint));
|
|
""")
|
|
await conn.execute("""CREATE TABLE IF NOT EXISTS
|
|
connector_utxo_state (name VARCHAR,
|
|
value BIGINT,
|
|
PRIMARY KEY(name));
|
|
""")
|
|
lb = await conn.fetchval("SELECT value FROM connector_utxo_state WHERE name='last_block';")
|
|
lc = await conn.fetchval("SELECT value FROM connector_utxo_state WHERE name='last_cached_block';")
|
|
if lb is None:
|
|
lb = 0
|
|
lc = 0
|
|
await conn.execute("INSERT INTO connector_utxo_state (name, value) "
|
|
"VALUES ('last_block', 0);")
|
|
await conn.execute("INSERT INTO connector_utxo_state (name, value) "
|
|
"VALUES ('last_cached_block', 0);")
|
|
self.last_block_height = lb
|
|
self.last_block_utxo_cached_height = lc
|
|
if self.app_block_height_on_start:
|
|
if self.app_block_height_on_start < self.last_block_utxo_cached_height:
|
|
self.log.critical("UTXO state last block %s app state last block %s " % (self.last_block_height,
|
|
self.last_block_utxo_cached_height))
|
|
raise Exception("App blockchain state behind connector blockchain state")
|
|
if self.app_block_height_on_start > self.last_block_height:
|
|
self.log.warning("Connector utxo height behind App height for %s blocks ..." %
|
|
(self.app_block_height_on_start - self.last_block_height,))
|
|
|
|
else:
|
|
self.app_block_height_on_start = self.last_block_utxo_cached_height
|
|
|
|
|
|
async def zeromq_handler(self):
|
|
while True:
|
|
try:
|
|
self.zmqContext = zmq.asyncio.Context()
|
|
self.zmqSubSocket = self.zmqContext.socket(zmq.SUB)
|
|
self.zmqSubSocket.setsockopt_string(zmq.SUBSCRIBE, "hashblock")
|
|
if self.mempool_tx:
|
|
self.zmqSubSocket.setsockopt_string(zmq.SUBSCRIBE, "rawtx")
|
|
self.zmqSubSocket.connect(self.zmq_url)
|
|
self.log.info("Zeromq started")
|
|
while True:
|
|
try:
|
|
msg = await self.zmqSubSocket.recv_multipart()
|
|
topic = msg[0]
|
|
body = msg[1]
|
|
|
|
if topic == b"hashblock":
|
|
self.last_zmq_msg = int(time.time())
|
|
if self.deep_synchronization:
|
|
continue
|
|
hash = body.hex()
|
|
self.log.warning("New block %s" % hash)
|
|
self.loop.create_task(self._get_block_by_hash(hash))
|
|
|
|
elif topic == b"rawtx":
|
|
self.last_zmq_msg = int(time.time())
|
|
if self.deep_synchronization or not self.mempool_tx:
|
|
continue
|
|
try:
|
|
self.loop.create_task(self._new_transaction(Transaction(body, format="raw")))
|
|
except:
|
|
self.log.critical("Transaction decode failed: %s" % body.hex())
|
|
|
|
if not self.active:
|
|
break
|
|
except asyncio.CancelledError:
|
|
self.log.warning("Zeromq handler terminating ...")
|
|
raise
|
|
except Exception as err:
|
|
self.log.error(str(err))
|
|
|
|
except asyncio.CancelledError:
|
|
self.zmqContext.destroy()
|
|
self.log.warning("Zeromq handler terminated")
|
|
break
|
|
except Exception as err:
|
|
self.log.error(str(err))
|
|
await asyncio.sleep(1)
|
|
self.log.warning("Zeromq handler reconnecting ...")
|
|
if not self.active:
|
|
self.log.warning("Zeromq handler terminated")
|
|
break
|
|
|
|
async def watchdog(self):
|
|
"""
|
|
backup synchronization option
|
|
in case zeromq failed
|
|
"""
|
|
while True:
|
|
try:
|
|
while True:
|
|
await asyncio.sleep(20)
|
|
if int(time.time()) - self.last_zmq_msg > 300 and self.zmqContext:
|
|
self.log.error("ZerroMQ no messages about 5 minutes")
|
|
try:
|
|
self.zmqContext.destroy()
|
|
self.zmqContext = None
|
|
except:
|
|
pass
|
|
if not self.get_next_block_mutex:
|
|
self.get_next_block_mutex = True
|
|
self.loop.create_task(self.get_next_block())
|
|
except asyncio.CancelledError:
|
|
self.log.info("connector watchdog terminated")
|
|
break
|
|
except Exception as err:
|
|
self.log.error(str(traceback.format_exc()))
|
|
self.log.error("watchdog error %s " % err)
|
|
|
|
async def get_next_block(self):
|
|
if self.active and self.active_block.done() and self.get_next_block_mutex:
|
|
try:
|
|
if self.node_last_block <= self.last_block_height + self.backlog:
|
|
d = await self.rpc.getblockcount()
|
|
if d == self.node_last_block:
|
|
self.log.info("blockchain is synchronized with backlog %s" % self.backlog)
|
|
return
|
|
else:
|
|
self.node_last_block = d
|
|
d = self.node_last_block - self.last_block_height
|
|
|
|
if d > self.deep_sync_limit:
|
|
if not self.deep_synchronization:
|
|
self.log.warning("Deep synchronization mode")
|
|
self.deep_synchronization = True
|
|
else:
|
|
if self.deep_synchronization:
|
|
self.log.warning("Normal synchronization mode")
|
|
# clear preload caches
|
|
self.deep_synchronization = False
|
|
|
|
if self.deep_synchronization:
|
|
raw_block = self.block_preload.pop(self.last_block_height + 1)
|
|
if raw_block:
|
|
q = time.time()
|
|
block = decode_block_tx(raw_block)
|
|
self.blocks_decode_time += time.time() - q
|
|
else:
|
|
h = self.block_hashes.pop(self.last_block_height + 1)
|
|
if h is None:
|
|
h = await self.rpc.getblockhash(self.last_block_height + 1)
|
|
if not self.block_hashes_preload_mutex:
|
|
self.loop.create_task(self.preload_blocks())
|
|
block = await self._get_block_by_hash(h)
|
|
else:
|
|
h = await self.rpc.getblockhash(self.last_block_height + 1)
|
|
block = await self._get_block_by_hash(h)
|
|
|
|
|
|
self.loop.create_task(self._new_block(block))
|
|
except Exception as err:
|
|
self.log.error("get next block failed %s" % str(err))
|
|
finally:
|
|
self.get_next_block_mutex = False
|
|
|
|
async def _get_block_by_hash(self, hash):
|
|
self.log.debug("get block by hash %s" % hash)
|
|
try:
|
|
if self.deep_synchronization:
|
|
q = time.time()
|
|
self.non_cached_blocks += 1
|
|
raw_block = await self.rpc.getblock(hash, 0)
|
|
self.blocks_download_time += time.time() - q
|
|
q = time.time()
|
|
block = decode_block_tx(raw_block)
|
|
self.blocks_decode_time += time.time() - q
|
|
else:
|
|
q = time.time()
|
|
block = await self.rpc.getblock(hash)
|
|
self.blocks_download_time += time.time() - q
|
|
return block
|
|
except Exception:
|
|
self.log.error("get block by hash %s FAILED" % hash)
|
|
self.log.error(str(traceback.format_exc()))
|
|
|
|
async def _new_block(self, block):
|
|
try:
|
|
if self.block_headers_cache.get(block["hash"]) is not None:
|
|
return
|
|
|
|
if self.deep_synchronization:
|
|
block["height"] = self.last_block_height + 1
|
|
if not self.active or not self.active_block.done() or self.last_block_height >= block["height"]:
|
|
return
|
|
self.active_block = asyncio.Future()
|
|
|
|
# self.log.debug("Block %s %s" % (block["height"], block["hash"]))
|
|
|
|
self.cache_loading = True if self.last_block_height < self.app_block_height_on_start else False
|
|
|
|
|
|
if self.deep_synchronization:
|
|
tx_bin_list = [block["rawTx"][i]["txId"] for i in block["rawTx"]]
|
|
else:
|
|
tx_bin_list = [s2rh(h) for h in block["tx"]]
|
|
await self.verify_block_position(block)
|
|
|
|
if self.before_block_handler and not self.cache_loading:
|
|
await self.before_block_handler(block)
|
|
|
|
await self.fetch_block_transactions(block, tx_bin_list)
|
|
|
|
if self.block_handler and not self.cache_loading:
|
|
await self.block_handler(block)
|
|
|
|
self.block_headers_cache.set(block["hash"], block["height"])
|
|
self.last_block_height = block["height"]
|
|
if self.utxo_data:
|
|
if not self.deep_synchronization:
|
|
self.utxo.destroy_utxo(block["height"])
|
|
elif block["height"] % 100 == 0:
|
|
self.utxo.destroy_utxo(block["height"])
|
|
|
|
self.blocks_processed_count += 1
|
|
|
|
for h in tx_bin_list: self.tx_cache.pop(h)
|
|
|
|
tx_rate = round(self.total_received_tx / (time.time() - self.start_time), 4)
|
|
t = 10000 if not self.deep_synchronization else 10000
|
|
if (self.total_received_tx - self.total_received_tx_stat) > t:
|
|
self.total_received_tx_stat = self.total_received_tx
|
|
self.log.warning("Blocks %s; tx rate: %s;" % (block["height"], tx_rate))
|
|
if self.utxo_data:
|
|
loading = "Loading ... " if self.cache_loading else ""
|
|
self.log.info(loading + "UTXO %s; hit rate: %s;" % (self.utxo.len(),
|
|
self.utxo.hit_rate()))
|
|
self.log.info("Blocks downloaded %s; decoded %s" % (round(self.blocks_download_time, 4),
|
|
round(self.blocks_decode_time, 4)))
|
|
if self.deep_synchronization:
|
|
self.log.info("Blocks not cached %s; "
|
|
"cache count %s; "
|
|
"cache size %s M;" % (self.non_cached_blocks,
|
|
self.block_preload.len(),
|
|
round(self.block_preload._store_size / 1024 / 1024, 2)))
|
|
self.log.info(
|
|
"cache first %s; "
|
|
"cache last %s;" % (
|
|
next(iter(self.block_preload._store)),
|
|
next(reversed(self.block_preload._store))))
|
|
|
|
self.log.info("saved utxo block %s; "
|
|
"saved utxo %s; "
|
|
"deleted utxo %s; "
|
|
"loaded utxo %s; "% (self.utxo.last_saved_block,
|
|
self.utxo.saved_utxo,
|
|
self.utxo.deleted_utxo,
|
|
self.utxo.loaded_utxo
|
|
))
|
|
self.log.info(
|
|
"destroyed utxo %s; "
|
|
"destroyed utxo block %s; "
|
|
"outs total %s;" % (
|
|
self.utxo.destroyed_utxo,
|
|
self.utxo.destroyed_utxo_block,
|
|
self.utxo.outs_total
|
|
))
|
|
self.log.info("total tx fetch time %s;" % self.total_received_tx_time)
|
|
|
|
# after block added handler
|
|
if self.after_block_handler and not self.cache_loading:
|
|
try:
|
|
await self.after_block_handler(block)
|
|
except:
|
|
pass
|
|
|
|
except Exception as err:
|
|
if self.await_tx:
|
|
self.await_tx = set()
|
|
for i in self.await_tx_future:
|
|
if not self.await_tx_future[i].done():
|
|
self.await_tx_future[i].cancel()
|
|
self.await_tx_future = dict()
|
|
self.log.error(str(traceback.format_exc()))
|
|
self.log.error("block error %s" % str(err))
|
|
finally:
|
|
self.active_block.set_result(True)
|
|
# self.log.debug("%s block [%s tx/ %s size] processing time %s cache [%s/%s]" %
|
|
# (block["height"],
|
|
# len(block["tx"]),
|
|
# block["size"] / 1000000,
|
|
# tm(bt),
|
|
# len(self.block_hashes._store),
|
|
# len(self.block_preload._store)))
|
|
if self.node_last_block > self.last_block_height:
|
|
self.get_next_block_mutex = True
|
|
self.loop.create_task(self.get_next_block())
|
|
|
|
async def fetch_block_transactions(self, block, tx_bin_list):
|
|
q = time.time()
|
|
if self.deep_synchronization:
|
|
self.await_tx = set(tx_bin_list)
|
|
self.await_tx_future = {i: asyncio.Future() for i in tx_bin_list}
|
|
self.block_txs_request = asyncio.Future()
|
|
for i in block["rawTx"]:
|
|
self.loop.create_task(self._new_transaction(block["rawTx"][i],
|
|
block["time"],
|
|
block["height"],
|
|
i))
|
|
await asyncio.wait_for(self.block_txs_request, timeout=1500)
|
|
|
|
|
|
elif tx_bin_list:
|
|
raise Exception("not emplemted")
|
|
missed = list(tx_bin_list)
|
|
self.log.debug("Transactions missed %s" % len(missed))
|
|
|
|
if missed:
|
|
self.missed_tx = set(missed)
|
|
self.await_tx = set(missed)
|
|
self.await_tx_future = {i: asyncio.Future() for i in missed}
|
|
self.block_txs_request = asyncio.Future()
|
|
self.loop.create_task(self._get_missed(False, block["time"], block["height"]))
|
|
try:
|
|
await asyncio.wait_for(self.block_txs_request, timeout=self.block_timeout)
|
|
except asyncio.CancelledError:
|
|
# refresh rpc connection session
|
|
await self.rpc.close()
|
|
self.rpc = aiojsonrpc.rpc(self.rpc_url, self.loop, timeout=self.rpc_timeout)
|
|
raise RuntimeError("block transaction request timeout")
|
|
tx_count = len(block["tx"])
|
|
self.total_received_tx += tx_count
|
|
self.total_received_tx_time += time.time() - q
|
|
rate = round(self.total_received_tx/self.total_received_tx_time)
|
|
self.log.debug("Transactions received: %s [%s] received tx rate tx/s ->> %s <<" % (tx_count, time.time() - q, rate))
|
|
|
|
async def verify_block_position(self, block):
|
|
return
|
|
if "previousblockhash" not in block :
|
|
return
|
|
if self.block_headers_cache.len() == 0:
|
|
return
|
|
|
|
lb = self.block_headers_cache.get_last_key()
|
|
if self.block_headers_cache.get_last_key() != block["previousblockhash"]:
|
|
if self.block_headers_cache.get(block["previousblockhash"]) is None and self.last_block_height:
|
|
self.log.critical("Connector error! Node out of sync "
|
|
"no parent block in chain tail %s" % block["previousblockhash"])
|
|
raise Exception("Node out of sync")
|
|
|
|
if self.orphan_handler:
|
|
await self.orphan_handler(self.last_block_height)
|
|
self.block_headers_cache.pop_last()
|
|
self.last_block_height -= 1
|
|
raise Exception("Sidebranch block removed")
|
|
|
|
async def _get_missed(self, block_hash=False, block_time=None, block_height=None):
|
|
if block_hash:
|
|
try:
|
|
block = self.block_preload.pop(block_hash)
|
|
if not block:
|
|
t = time.time()
|
|
result = await self.rpc.getblock(block_hash, 0)
|
|
dt = time.time() - t
|
|
t = time.time()
|
|
block = decode_block_tx(result)
|
|
qt = time.time() - t
|
|
self.blocks_download_time += dt
|
|
self.blocks_decode_time += qt
|
|
|
|
self.log.debug("block downloaded %s decoded %s " % (round(dt, 4), round(qt, 4)))
|
|
for index, tx in enumerate(block):
|
|
try:
|
|
self.missed_tx.remove(block[tx]["txId"])
|
|
self.loop.create_task(self._new_transaction(block[tx], block_time, block_height, index))
|
|
except:
|
|
pass
|
|
except Exception as err:
|
|
self.log.error("_get_missed exception %s " % str(err))
|
|
self.log.error(str(traceback.format_exc()))
|
|
self.await_tx = set()
|
|
self.block_txs_request.cancel()
|
|
|
|
elif self.get_missed_tx_threads <= self.get_missed_tx_threads_limit:
|
|
self.get_missed_tx_threads += 1
|
|
# start more threads
|
|
if len(self.missed_tx) > 1:
|
|
self.loop.create_task(self._get_missed(False, block_time, block_height))
|
|
while True:
|
|
if not self.missed_tx:
|
|
break
|
|
try:
|
|
batch = list()
|
|
while self.missed_tx:
|
|
batch.append(["getrawtransaction", self.missed_tx.pop()])
|
|
if len(batch) >= self.batch_limit:
|
|
break
|
|
result = await self.rpc.batch(batch)
|
|
for r in result:
|
|
try:
|
|
tx = Transaction(r["result"], format="raw")
|
|
except:
|
|
self.log.error("Transaction decode failed: %s" % r["result"])
|
|
raise Exception("Transaction decode failed")
|
|
self.loop.create_task(self._new_transaction(tx, block_time, None, None))
|
|
except Exception as err:
|
|
self.log.error("_get_missed exception %s " % str(err))
|
|
self.log.error(str(traceback.format_exc()))
|
|
self.await_tx = set()
|
|
self.block_txs_request.cancel()
|
|
self.get_missed_tx_threads -= 1
|
|
|
|
|
|
async def wait_block_dependences(self, tx):
|
|
while self.await_tx_future:
|
|
for i in tx["vIn"]:
|
|
try:
|
|
if not self.await_tx_future[tx["vIn"][i]["txId"]].done():
|
|
await self.await_tx_future[tx["vIn"][i]["txId"]]
|
|
break
|
|
except:
|
|
pass
|
|
else:
|
|
break
|
|
|
|
|
|
async def _new_transaction(self, tx, block_time = None, block_height = None, block_index = None):
|
|
if not(tx["txId"] in self.tx_in_process or self.tx_cache.get(tx["txId"])):
|
|
try:
|
|
stxo = None
|
|
self.tx_in_process.add(tx["txId"])
|
|
if not tx["coinbase"]:
|
|
if block_height is not None:
|
|
await self.wait_block_dependences(tx)
|
|
if self.utxo:
|
|
stxo = await self.get_stxo(tx, block_height, block_index)
|
|
|
|
if self.tx_handler and not self.cache_loading:
|
|
await self.tx_handler(tx, stxo, block_time, block_height, block_index)
|
|
|
|
if self.utxo:
|
|
self.put_utxo(tx, block_height, block_index)
|
|
|
|
self.tx_cache.set(tx["txId"], True)
|
|
try:
|
|
self.await_tx.remove(tx["txId"])
|
|
if not self.await_tx_future[tx["txId"]].done():
|
|
self.await_tx_future[tx["txId"]].set_result(True)
|
|
if not self.await_tx:
|
|
self.block_txs_request.set_result(True)
|
|
except:
|
|
pass
|
|
except Exception as err:
|
|
if tx["txId"] in self.await_tx:
|
|
self.await_tx = set()
|
|
self.block_txs_request.cancel()
|
|
for i in self.await_tx_future:
|
|
if not self.await_tx_future[i].done():
|
|
self.await_tx_future[i].cancel()
|
|
self.log.debug("new transaction error %s " % err)
|
|
self.log.debug(str(traceback.format_exc()))
|
|
finally:
|
|
self.tx_in_process.remove(tx["txId"])
|
|
|
|
def put_utxo(self, tx, block_height, block_index):
|
|
for i in tx["vOut"]:
|
|
out = tx["vOut"][i]
|
|
if self.skip_opreturn and out["nType"] in (3, 8):
|
|
continue
|
|
pointer = (block_height << 42) + (block_index << 21) + i
|
|
if "addressHash" not in out:
|
|
address = out["scriptPubKey"]
|
|
else:
|
|
address = b"".join((bytes([out["nType"]]), out["addressHash"]))
|
|
outpoint = b"".join((tx["txId"], int_to_bytes(i)))
|
|
# self.tmp[outpoint] = (pointer, out["value"], address)
|
|
self.utxo.set(outpoint, pointer, out["value"], address)
|
|
|
|
async def get_stxo(self, tx, block_height, block_index):
|
|
stxo, missed = set(), set()
|
|
block_height = 0 if block_height is None else block_height
|
|
block_index = 0 if block_index is None else block_index
|
|
|
|
for i in tx["vIn"]:
|
|
inp = tx["vIn"][i]
|
|
outpoint = b"".join((inp["txId"], int_to_bytes(inp["vOut"])))
|
|
r = self.utxo.get(outpoint, block_height)
|
|
stxo.add(r) if r else missed.add((outpoint, (block_height << 42) + (block_index << 21) + i))
|
|
|
|
if missed:
|
|
await self.utxo.load_utxo()
|
|
[stxo.add(self.utxo.get_loaded(o, block_height)) for o, s in missed]
|
|
|
|
if len(stxo) != len(tx["vIn"]) and not self.cache_loading:
|
|
self.log.critical("utxo get failed " + rh2s(tx["txId"]))
|
|
self.log.critical(str(stxo))
|
|
raise Exception("utxo get failed ")
|
|
return stxo
|
|
|
|
|
|
async def preload_blocks(self):
|
|
if self.block_hashes_preload_mutex:
|
|
return
|
|
try:
|
|
self.block_hashes_preload_mutex = True
|
|
max_height = self.node_last_block - self.deep_synchronization
|
|
height = self.last_block_height + 1
|
|
processed_height = self.last_block_height
|
|
|
|
while height < max_height:
|
|
if self.block_preload._store_size < self.block_preload_cache_limit:
|
|
try:
|
|
if height < self.last_block_height:
|
|
height = self.last_block_height + 1
|
|
batch = list()
|
|
h_list = list()
|
|
while True:
|
|
batch.append(["getblockhash", height])
|
|
h_list.append(height)
|
|
if len(batch) >= self.batch_limit or height >= max_height:
|
|
height += 1
|
|
break
|
|
height += 1
|
|
result = await self.rpc.batch(batch)
|
|
h = list()
|
|
batch = list()
|
|
for lh, r in zip(h_list, result):
|
|
try:
|
|
self.block_hashes.set(lh, r["result"])
|
|
batch.append(["getblock", r["result"], 0])
|
|
h.append(lh)
|
|
except:
|
|
pass
|
|
|
|
blocks = await self.rpc.batch(batch)
|
|
|
|
for x,y in zip(h,blocks):
|
|
try:
|
|
self.block_preload.set(x, (y["result"]))
|
|
except:
|
|
pass
|
|
|
|
except asyncio.CancelledError:
|
|
self.log.info("connector preload_block_hashes failed")
|
|
break
|
|
except:
|
|
pass
|
|
if processed_height < self.last_block_height:
|
|
for i in range(processed_height, self.last_block_height ):
|
|
try:
|
|
self.block_preload.remove(i)
|
|
except:
|
|
pass
|
|
processed_height = self.last_block_height
|
|
if next(iter(self.block_preload._store)) < processed_height + 1:
|
|
for i in range(next(iter(self.block_preload._store)), self.last_block_height+1):
|
|
try:
|
|
self.block_preload.remove(i)
|
|
except:
|
|
pass
|
|
if self.block_preload._store_size < self.block_preload_cache_limit * 0.9:
|
|
continue
|
|
|
|
await asyncio.sleep(10)
|
|
# remove unused items
|
|
|
|
finally:
|
|
self.block_hashes_preload_mutex = False
|
|
|
|
|
|
async def stop(self):
|
|
self.active = False
|
|
self.log.warning("New block processing restricted")
|
|
self.log.warning("Stopping node connector ...")
|
|
[task.cancel() for task in self.tasks]
|
|
await asyncio.wait(self.tasks)
|
|
if not self.active_block.done():
|
|
self.log.warning("Waiting active block task ...")
|
|
await self.active_block
|
|
await self.rpc.close()
|
|
if self.zmqContext:
|
|
self.zmqContext.destroy()
|
|
self.log.warning('Node connector terminated')
|
|
|
|
|
|
class UTXO():
|
|
def __init__(self, db_pool, loop, log, cache_size):
|
|
self.cached = pylru.lrucache(cache_size)
|
|
self.missed = set()
|
|
self.destroyed = pylru.lrucache(200000)
|
|
self.deleted = pylru.lrucache(200000)
|
|
self.log = log
|
|
self.loaded = OrderedDict()
|
|
self.maturity = 100
|
|
self._cache_size = cache_size
|
|
self._db_pool = db_pool
|
|
self.loop = loop
|
|
self.clear_tail = False
|
|
self.last_saved_block = 0
|
|
self.last_cached_block = 0
|
|
self.save_process = False
|
|
self.load_utxo_future = asyncio.Future()
|
|
self.load_utxo_future.set_result(True)
|
|
self._requests = 0
|
|
self._failed_requests = 0
|
|
self._hit = 0
|
|
self.saved_utxo = 0
|
|
self.deleted_utxo = 0
|
|
self.deleted_utxo_saved = 0
|
|
self.loaded_utxo = 0
|
|
self.destroyed_utxo = 0
|
|
self.destroyed_utxo_block = 0
|
|
self.outs_total = 0
|
|
|
|
def set(self, outpoint, pointer, amount, address):
|
|
self.cached[outpoint] = (pointer, amount, address)
|
|
self.outs_total += 1
|
|
if pointer:
|
|
self.last_cached_block = pointer >> 42
|
|
|
|
def remove(self, outpoint):
|
|
del self.cached[outpoint]
|
|
|
|
def destroy_utxo(self, block_height):
|
|
return
|
|
block_height -= self.maturity
|
|
for key in range(self.destroyed_utxo_block + 1, block_height + 1):
|
|
if key not in self.destroyed: continue
|
|
n = set()
|
|
for outpoint in self.destroyed[key]:
|
|
try:
|
|
self.cached.pop(outpoint)
|
|
self.destroyed_utxo += 1
|
|
except:
|
|
try:
|
|
del self.loaded[outpoint]
|
|
self.destroyed_utxo += 1
|
|
n.add(outpoint)
|
|
except:
|
|
self.destroyed_utxo += 1
|
|
pass
|
|
self.deleted[key] = n
|
|
self.destroyed.pop(key)
|
|
|
|
self.destroyed_utxo_block = block_height
|
|
if len(self.cached) - self._cache_size > 0 and not self.save_process:
|
|
self.loop.create_task(self.save_utxo(block_height))
|
|
|
|
async def save_utxo(self, block_height):
|
|
# save to db tail from cache
|
|
self.save_process = True
|
|
await asyncio.sleep(2)
|
|
c = len(self.cached) - self._cache_size
|
|
try:
|
|
lb = 0
|
|
for key in iter(self.cached):
|
|
i = self.cached[key]
|
|
if c>0 and (i[0] >> 42) <= block_height:
|
|
c -= 1
|
|
lb = i[0] >> 42
|
|
continue
|
|
break
|
|
|
|
if lb:
|
|
d = set()
|
|
for key in range(self.last_saved_block + 1, lb + 1):
|
|
try:
|
|
[d.add(i) for i in self.deleted[key]]
|
|
except:
|
|
pass
|
|
|
|
a = set()
|
|
for key in iter(self.cached):
|
|
i = self.cached[key]
|
|
if (i[0] >> 42) > lb: break
|
|
a.add((key,b"".join((int_to_c_int(i[0]),
|
|
int_to_c_int(i[1]),
|
|
i[2]))))
|
|
|
|
# insert to db
|
|
async with self._db_pool.acquire() as conn:
|
|
async with conn.transaction():
|
|
if d:
|
|
await conn.execute("DELETE FROM connector_utxo WHERE "
|
|
"outpoint = ANY($1);", d)
|
|
if a:
|
|
await conn.copy_records_to_table('connector_utxo',
|
|
columns=["outpoint", "data"], records=a)
|
|
await conn.execute("UPDATE connector_utxo_state SET value = $1 "
|
|
"WHERE name = 'last_block';", lb)
|
|
await conn.execute("UPDATE connector_utxo_state SET value = $1 "
|
|
"WHERE name = 'last_cached_block';", block_height)
|
|
self.saved_utxo += len(a)
|
|
self.deleted_utxo += len(d)
|
|
|
|
# remove from cache
|
|
for key in a:
|
|
try:
|
|
self.cached.pop(key[0])
|
|
except:
|
|
pass
|
|
|
|
for key in range(self.last_saved_block + 1, lb + 1):
|
|
try:
|
|
self.deleted.pop(key)
|
|
except:
|
|
pass
|
|
self.last_saved_block = lb
|
|
finally:
|
|
self.save_process = False
|
|
|
|
def get(self, key, block_height):
|
|
self._requests += 1
|
|
try:
|
|
i = self.cached.pop(key)
|
|
self.destroyed_utxo += 1
|
|
# try:
|
|
# self.destroyed[block_height].add(key)
|
|
# except:
|
|
# self.destroyed[block_height] = {key}
|
|
self._hit += 1
|
|
return i
|
|
except:
|
|
self._failed_requests += 1
|
|
self.missed.add(key)
|
|
return None
|
|
|
|
def get_loaded(self, key, block_height):
|
|
try:
|
|
i = self.loaded[key]
|
|
try:
|
|
self.destroyed[block_height].add(key)
|
|
except:
|
|
self.destroyed[block_height] = {key}
|
|
return i
|
|
except:
|
|
return None
|
|
|
|
async def load_utxo(self):
|
|
while True:
|
|
if not self.load_utxo_future.done():
|
|
await self.load_utxo_future
|
|
continue
|
|
break
|
|
try:
|
|
self.load_utxo_future = asyncio.Future()
|
|
l = set(self.missed)
|
|
async with self._db_pool.acquire() as conn:
|
|
rows = await conn.fetch("SELECT outpoint, connector_utxo.data "
|
|
"FROM connector_utxo "
|
|
"WHERE outpoint = ANY($1);", l)
|
|
for i in l:
|
|
try:
|
|
self.missed.remove(i)
|
|
except:
|
|
pass
|
|
for row in rows:
|
|
d = row["data"]
|
|
pointer = c_int_to_int(d)
|
|
f = c_int_len(pointer)
|
|
amount = c_int_to_int(d[f:])
|
|
f += c_int_len(amount)
|
|
address = d[f:]
|
|
self.loaded[row["outpoint"]] = (pointer, amount, address)
|
|
self.loaded_utxo += 1
|
|
finally:
|
|
self.load_utxo_future.set_result(True)
|
|
|
|
|
|
def len(self):
|
|
return len(self.cached)
|
|
|
|
def hit_rate(self):
|
|
if self._requests:
|
|
return self._hit / self._requests
|
|
else:
|
|
return 0
|
|
|
|
|
|
|
|
def get_stream(stream):
|
|
if not isinstance(stream, io.BytesIO):
|
|
if isinstance(stream, str):
|
|
stream = bytes.fromhex(stream)
|
|
if isinstance(stream, bytes):
|
|
stream = io.BytesIO(stream)
|
|
else:
|
|
raise TypeError("object should be bytes or HEX encoded string")
|
|
return stream
|
|
|
|
|
|
def decode_block_tx(block):
|
|
s = get_stream(block)
|
|
b = dict()
|
|
b["amount"] = 0
|
|
b["strippedSize"] = 80
|
|
b["version"] = unpack("<L", s.read(4))[0]
|
|
b["versionHex"] = pack(">L", b["version"]).hex()
|
|
b["previousBlockHash"] = s.read(32)
|
|
b["merkleRoot"] = s.read(32)
|
|
b["time"] = unpack("<L", s.read(4))[0]
|
|
b["bits"] = s.read(4)
|
|
b["target"] = bits_to_target(unpack("<L", b["bits"])[0])
|
|
b["targetDifficulty"] = target_to_difficulty(b["target"])
|
|
b["target"] = b["target"].to_bytes(32, byteorder="little")
|
|
b["nonce"] = unpack("<L", s.read(4))[0]
|
|
s.seek(-80, 1)
|
|
b["header"] = s.read(80).hex()
|
|
b["bits"] = b["bits"]
|
|
b["target"] = b["target"]
|
|
b["hash"] = double_sha256(b["header"], hex=0)
|
|
# b["hash"] = b["hash"]
|
|
|
|
b["rawTx"] = {i: Transaction(s, format="raw")
|
|
for i in range(var_int_to_int(read_var_int(s)))}
|
|
# b["tx"] = [rh2s(b["rawTx"][i]["txId"]) for i in b["rawTx"] ]
|
|
b["size"] = len(block)
|
|
for t in b["rawTx"].values():
|
|
b["amount"] += t["amount"]
|
|
b["strippedSize"] += t["bSize"]
|
|
b["strippedSize"] += var_int_len(len(b["rawTx"]))
|
|
b["weight"] = b["strippedSize"] * 3 + b["size"]
|
|
return b
|
|
|
|
|
|
class DependsTransaction(Exception):
|
|
def __init__(self, raw_tx_hash):
|
|
self.raw_tx_hash = raw_tx_hash
|
|
|
|
|
|
class Cache():
|
|
def __init__(self, max_size=1000000, clear_tail=True):
|
|
self._store = OrderedDict()
|
|
self._store_size = 0
|
|
self._max_size = max_size
|
|
self.clear_tail = False
|
|
self.clear_tail_auto = clear_tail
|
|
self._requests = 0
|
|
self._hit = 0
|
|
|
|
def set(self, key, value):
|
|
self._check_limit()
|
|
self._store[key] = value
|
|
self._store_size += sys.getsizeof(value) + sys.getsizeof(key)
|
|
|
|
def _check_limit(self):
|
|
if self._store_size >= self._max_size:
|
|
self.clear_tail = True
|
|
if self.clear_tail and self.clear_tail_auto:
|
|
if self._store_size >= int(self._max_size * 0.75):
|
|
try:
|
|
[self.pop_last() for i in range(20)]
|
|
except:
|
|
pass
|
|
else:
|
|
self.clear_tail = False
|
|
|
|
def get(self, key):
|
|
self._requests += 1
|
|
try:
|
|
i = self._store[key]
|
|
self._hit += 1
|
|
return i
|
|
except:
|
|
return None
|
|
|
|
def pop(self, key):
|
|
self._requests += 1
|
|
try:
|
|
data = self._store.pop(key)
|
|
self._store_size -= sys.getsizeof(data) + sys.getsizeof(key)
|
|
self._hit += 1
|
|
return data
|
|
except:
|
|
return None
|
|
|
|
def remove(self, key):
|
|
try:
|
|
data = self._store.pop(key)
|
|
self._store_size -= sys.getsizeof(data) + sys.getsizeof(key)
|
|
except:
|
|
pass
|
|
|
|
def pop_last(self):
|
|
try:
|
|
i = next(reversed(self._store))
|
|
data = self._store[i]
|
|
del self._store[i]
|
|
self._store_size -= sys.getsizeof(data) + sys.getsizeof(i)
|
|
return data
|
|
except:
|
|
return None
|
|
|
|
def get_last_key(self):
|
|
try:
|
|
i = next(reversed(self._store))
|
|
return i
|
|
except:
|
|
return None
|
|
|
|
def len(self):
|
|
return len(self._store)
|
|
|
|
def hitrate(self):
|
|
if self._requests:
|
|
return self._hit / self._requests
|
|
else:
|
|
return 0
|
|
|
|
|
|
def tm(p=None):
|
|
if p is not None:
|
|
return round(time.time() - p, 4)
|
|
return time.time()
|
|
|