Introduce driver object
This commit is contained in:
lash
parent
dcf095cc86
commit
18f16d878f
GPG Key ID:
21D2E7BB88C2A746
@ -3,29 +3,55 @@ import logging
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import time
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# local imports
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from .base import Syncer
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from chainsyncer.error import (
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SyncDone,
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NoBlockForYou,
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)
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from chainsyncer.session import SyncSession
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logg = logging.getLogger(__name__)
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NS_DIV = 1000000000
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class BlockPollSyncer(Syncer):
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"""Syncer driver implementation of chainsyncer.driver.base.Syncer that retrieves new blocks through polling.
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"""
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class SyncDriver:
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name = 'blockpoll'
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running_global = True
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def __init__(self, backend, chain_interface, pre_callback=None, block_callback=None, post_callback=None, idle_callback=None):
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super(BlockPollSyncer, self).__init__(backend, chain_interface, pre_callback=pre_callback, block_callback=block_callback, post_callback=post_callback)
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def __init__(self, conn, store, pre_callback=None, post_callback=None, block_callback=None, idle_callback=None):
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self.store = store
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self.running = True
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self.pre_callback = pre_callback
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self.post_callback = post_callback
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self.block_callback = block_callback
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self.idle_callback = idle_callback
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self.last_start = 0
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self.clock_id = time.CLOCK_MONOTONIC_RAW
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self.session = SyncSession(self.store)
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def __sig_terminate(self, sig, frame):
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logg.warning('got signal {}'.format(sig))
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self.terminate()
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def terminate(self):
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"""Set syncer to terminate as soon as possible.
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"""
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logg.info('termination requested!')
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SyncDriver.running_global = False
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self.running = False
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def run(self):
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while self.running_global:
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item = self.store.next_item()
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logg.debug('item {}'.format(item))
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if item == None:
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self.running = False
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self.running_global = False
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break
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self.loop(item)
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def idle(self, interval):
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@ -54,21 +80,8 @@ class BlockPollSyncer(Syncer):
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time.sleep(interval)
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def loop(self, interval, conn):
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"""Indefinite loop polling the given RPC connection for new blocks in the given interval.
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:param interval: Seconds to wait for next poll after processing of previous poll has been completed.
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:type interval: int
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:param conn: RPC connection
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:type conn: chainlib.connection.RPCConnection
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:rtype: tuple
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:returns: See chainsyncer.backend.base.Backend.get
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"""
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(pair, fltr) = self.backend.get()
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start_tx = pair[1]
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while self.running and Syncer.running_global:
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def loop(self, item):
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while self.running and SyncDriver.running_global:
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self.last_start = time.clock_gettime_ns(self.clock_id)
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if self.pre_callback != None:
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self.pre_callback()
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@ -97,3 +110,14 @@ class BlockPollSyncer(Syncer):
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self.post_callback()
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self.idle(interval)
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def process_single(self, conn, block, tx):
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self.session.filter(conn, block, tx)
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def process(self, conn, block):
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raise NotImplementedError()
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def get(self, conn):
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raise NotImplementedError()
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@ -1 +0,0 @@
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from .base import Syncer
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@ -1,126 +0,0 @@
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# standard imports
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import uuid
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import logging
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import time
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import signal
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import json
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# external imports
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from chainlib.error import JSONRPCException
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# local imports
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from chainsyncer.filter import SyncFilter
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from chainsyncer.error import (
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SyncDone,
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NoBlockForYou,
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)
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logg = logging.getLogger(__name__)
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def noop_callback(block, tx):
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"""Logger-only callback for pre- and post processing.
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:param block: Block object
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:type block: chainlib.block.Block
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:param tx: Transaction object
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:type tx: chainlib.tx.Tx
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"""
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logg.debug('noop callback ({},{})'.format(block, tx))
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class Syncer:
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"""Base class for syncer implementations.
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:param backend: Syncer state backend
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:type backend: chainsyncer.backend.base.Backend implementation
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:param chain_interface: Chain interface implementation
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:type chain_interface: chainlib.interface.ChainInterface implementation
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:param pre_callback: Function to call before polling. Function will receive no arguments.
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:type pre_callback: function
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:param block_callback: Function to call before processing txs in a retrieved block. Function should have signature as chainsyncer.driver.base.noop_callback
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:type block_callback: function
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:param post_callback: Function to call after polling. Function will receive no arguments.
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:type post_callback: function
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"""
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running_global = True
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"""If set to false syncer will terminate polling loop."""
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yield_delay=0.005
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"""Delay between each processed block."""
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signal_request = [signal.SIGINT, signal.SIGTERM]
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"""Signals to catch to request shutdown."""
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signal_set = False
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"""Whether shutdown signal has been received."""
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name = 'base'
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"""Syncer name, to be overriden for each extended implementation."""
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def __init__(self, backend, chain_interface, pre_callback=None, block_callback=None, post_callback=None):
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self.chain_interface = chain_interface
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self.cursor = None
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self.running = True
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self.backend = backend
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self.filter = SyncFilter(backend)
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self.block_callback = block_callback
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self.pre_callback = pre_callback
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self.post_callback = post_callback
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if not Syncer.signal_set:
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for sig in Syncer.signal_request:
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signal.signal(sig, self.__sig_terminate)
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Syncer.signal_set = True
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def __sig_terminate(self, sig, frame):
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logg.warning('got signal {}'.format(sig))
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self.terminate()
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def terminate(self):
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"""Set syncer to terminate as soon as possible.
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"""
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logg.info('termination requested!')
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Syncer.running_global = False
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self.running = False
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def add_filter(self, f):
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"""Add filter to be processed for each transaction.
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:param f: Filter
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:type f: Object instance implementing signature as in chainsyncer.filter.NoopFilter.filter
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"""
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self.filter.add(f)
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self.backend.register_filter(str(f))
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def process_single(self, conn, block, tx):
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"""Set syncer backend cursor to the given transaction index and block height, and apply all registered filters on transaction.
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:param conn: RPC connection instance
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:type conn: chainlib.connection.RPCConnection
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:param block: Block object
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:type block: chainlib.block.Block
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:param block: Transaction object
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:type block: chainlib.tx.Tx
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"""
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self.backend.set(block.number, tx.index)
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self.filter.apply(conn, block, tx)
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def loop(self, interval, conn):
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raise NotImplementedError()
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def process(self, conn, block):
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raise NotImplementedError()
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def get(self, conn):
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raise NotImplementedError()
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def __str__(self):
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return 'syncer "{}" {}'.format(
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self.name,
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self.backend,
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)
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@ -1,86 +0,0 @@
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# standard imports
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import logging
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# external imports
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from chainlib.eth.tx import (
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transaction,
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Tx,
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)
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from chainlib.error import RPCException
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# local imports
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from chainsyncer.error import NoBlockForYou
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from .poll import BlockPollSyncer
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logg = logging.getLogger(__name__)
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class HeadSyncer(BlockPollSyncer):
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"""Extends the block poller, implementing an open-ended syncer.
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"""
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name = 'head'
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def process(self, conn, block):
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"""Process a single block using the given RPC connection.
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Processing means that all filters are executed on all transactions in the block.
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If the block object does not contain the transaction details, the details will be retrieved from the network (incurring the corresponding performance penalty).
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:param conn: RPC connection
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:type conn: chainlib.connection.RPCConnection
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:param block: Block object
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:type block: chainlib.block.Block
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"""
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(pair, fltr) = self.backend.get()
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logg.debug('process block {} (backend {}:{})'.format(block, pair, fltr))
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i = pair[1] # set tx index from previous
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tx_src = None
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while True:
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# handle block objects regardless of whether the tx data is embedded or not
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try:
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tx = block.tx(i)
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except AttributeError:
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o = transaction(block.txs[i])
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r = conn.do(o)
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tx_src = Tx.src_normalize(r)
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tx = self.chain_interface.tx_from_src(tx_src, block=block)
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#except IndexError as e:
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# logg.debug('index error syncer tx get {}'.format(e))
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# break
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rcpt = conn.do(self.chain_interface.tx_receipt(tx.hash))
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if rcpt != None:
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tx.apply_receipt(self.chain_interface.src_normalize(rcpt))
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self.process_single(conn, block, tx)
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self.backend.reset_filter()
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i += 1
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def get(self, conn):
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"""Retrieve the block currently defined by the syncer cursor from the RPC provider.
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:param conn: RPC connection
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:type conn: chainlib.connectin.RPCConnection
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:raises NoBlockForYou: Block at the given height does not exist
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:rtype: chainlib.block.Block
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:returns: Block object
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"""
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(height, flags) = self.backend.get()
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block_number = height[0]
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block_hash = []
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o = self.chain_interface.block_by_number(block_number)
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try:
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r = conn.do(o)
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except RPCException:
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r = None
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if r == None:
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raise NoBlockForYou()
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b = self.chain_interface.block_from_src(r)
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b.txs = b.txs[height[1]:]
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return b
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@ -1,56 +0,0 @@
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# standard imports
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import logging
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# external imports
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from chainlib.error import RPCException
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# local imports
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from .head import HeadSyncer
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from chainsyncer.error import SyncDone
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from chainlib.error import RPCException
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logg = logging.getLogger(__name__)
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class HistorySyncer(HeadSyncer):
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"""Bounded syncer implementation of the block poller. Reuses the head syncer process method implementation.
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"""
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name = 'history'
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def __init__(self, backend, chain_interface, pre_callback=None, block_callback=None, post_callback=None):
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super(HeadSyncer, self).__init__(backend, chain_interface, pre_callback, block_callback, post_callback)
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self.block_target = None
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(block_number, flags) = self.backend.target()
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if block_number == None:
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raise AttributeError('backend has no future target. Use HeadSyner instead')
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self.block_target = block_number
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def get(self, conn):
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"""Retrieve the block currently defined by the syncer cursor from the RPC provider.
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:param conn: RPC connection
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:type conn: chainlib.connectin.RPCConnection
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:raises SyncDone: Block target reached (at which point the syncer should terminate).
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:rtype: chainlib.block.Block
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:returns: Block object
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:todo: DRY against HeadSyncer
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"""
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(height, flags) = self.backend.get()
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if self.block_target < height[0]:
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raise SyncDone(self.block_target)
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block_number = height[0]
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block_hash = []
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o = self.chain_interface.block_by_number(block_number, include_tx=True)
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try:
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r = conn.do(o)
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# TODO: Disambiguate whether error is temporary or permanent, if permanent, SyncDone should be raised, because a historical sync is attempted into the future
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except RPCException:
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r = None
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if r == None:
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raise SyncDone()
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b = self.chain_interface.block_from_src(r)
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return b
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@ -1,133 +0,0 @@
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# standard imports
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import logging
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#import threading
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import multiprocessing
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import queue
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# external imports
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from chainlib.error import RPCException
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# local imports
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from .history import HistorySyncer
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from chainsyncer.error import SyncDone
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logg = logging.getLogger(__name__)
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class ThreadedHistorySyncer(HistorySyncer):
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def __init__(self, conn_factory, thread_limit, backend, chain_interface, pre_callback=None, block_callback=None, post_callback=None, conn_limit=0):
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super(ThreadedHistorySyncer, self).__init__(backend, chain_interface, pre_callback, block_callback, post_callback)
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self.workers = []
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if conn_limit == 0:
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conn_limit = thread_limit
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#self.conn_pool = queue.Queue(conn_limit)
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#self.queue = queue.Queue(thread_limit)
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#self.quit_queue = queue.Queue(1)
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self.conn_pool = multiprocessing.Queue(conn_limit)
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self.queue = multiprocessing.Queue(thread_limit)
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self.quit_queue = multiprocessing.Queue(1)
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#self.lock = threading.Lock()
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self.lock = multiprocessing.Lock()
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for i in range(thread_limit):
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#w = threading.Thread(target=self.worker)
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w = multiprocessing.Process(target=self.worker)
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self.workers.append(w)
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for i in range(conn_limit):
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self.conn_pool.put(conn_factory())
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def terminate(self):
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self.quit_queue.put(())
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super(ThreadedHistorySyncer, self).terminate()
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def worker(self):
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while True:
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block_number = None
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try:
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block_number = self.queue.get(timeout=0.01)
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except queue.Empty:
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if self.quit_queue.qsize() > 0:
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#logg.debug('{} received quit'.format(threading.current_thread().getName()))
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logg.debug('{} received quit'.format(multiprocessing.current_process().name))
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return
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continue
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conn = self.conn_pool.get()
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try:
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logg.debug('processing parent {} {}'.format(conn, block_number))
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self.process_parent(conn, block_number)
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except IndexError:
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pass
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except RPCException as e:
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logg.error('RPC failure for block {}, resubmitting to queue: {}'.format(block, e))
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self.queue.put(block_number)
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conn = self.conn_pool.put(conn)
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def process_parent(self, conn, block_number):
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logg.debug('getting block {}'.format(block_number))
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o = self.chain_interface.block_by_number(block_number)
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r = conn.do(o)
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block = self.chain_interface.block_from_src(r)
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logg.debug('got block typ {}'.format(type(block)))
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super(ThreadedHistorySyncer, self).process(conn, block)
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def process_single(self, conn, block, tx):
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self.filter.apply(conn, block, tx)
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def process(self, conn, block):
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pass
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#def process(self, conn, block):
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def get(self, conn):
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if not self.running:
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raise SyncDone()
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block_number = None
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tx_index = None
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flags = None
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((block_number, tx_index), flags) = self.backend.get()
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try:
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#logg.debug('putting {}'.format(block.number))
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#self.queue.put((conn, block_number,), timeout=0.1)
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self.queue.put(block_number, timeout=0.1)
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except queue.Full:
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#logg.debug('queue full, try again')
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return
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target, flags = self.backend.target()
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next_block = block_number + 1
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if next_block > target:
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self.quit_queue.put(())
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raise SyncDone()
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self.backend.set(self.backend.block_height + 1, 0)
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# def get(self, conn):
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# try:
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# r = super(ThreadedHistorySyncer, self).get(conn)
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# return r
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# except SyncDone as e:
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# self.quit_queue.put(())
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# raise e
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def loop(self, interval, conn):
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for w in self.workers:
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w.start()
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r = super(ThreadedHistorySyncer, self).loop(interval, conn)
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for w in self.workers:
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w.join()
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while True:
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try:
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self.quit_queue.get_nowait()
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except queue.Empty:
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break
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logg.info('workers done {}'.format(r))
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@ -1,170 +0,0 @@
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# standard imports
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import logging
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#import threading
|
||||
import multiprocessing
|
||||
import queue
|
||||
import time
|
||||
|
||||
# external imports
|
||||
from chainlib.error import RPCException
|
||||
|
||||
# local imports
|
||||
from .history import HistorySyncer
|
||||
from chainsyncer.error import SyncDone
|
||||
|
||||
logg = logging.getLogger(__name__)
|
||||
|
||||
|
||||
def foobarcb(v):
|
||||
logg.debug('foooz {}'.format(v))
|
||||
|
||||
|
||||
class ThreadPoolTask:
|
||||
|
||||
process_func = None
|
||||
chain_interface = None
|
||||
|
||||
def poolworker(self, block_number, conn):
|
||||
# conn = args[1].get()
|
||||
try:
|
||||
logg.debug('processing parent {} {}'.format(conn, block_number))
|
||||
#self.process_parent(self.conn, block_number)
|
||||
self.process_parent(conn, block_number)
|
||||
except IndexError:
|
||||
pass
|
||||
except RPCException as e:
|
||||
logg.error('RPC failure for block {}, resubmitting to queue: {}'.format(block, e))
|
||||
raise e
|
||||
#self.queue.put(block_number)
|
||||
# conn = self.conn_pool.put(conn)
|
||||
|
||||
def process_parent(self, conn, block_number):
|
||||
logg.debug('getting block {}'.format(block_number))
|
||||
o = self.chain_interface.block_by_number(block_number)
|
||||
r = conn.do(o)
|
||||
block = self.chain_interface.block_from_src(r)
|
||||
logg.debug('got block typ {}'.format(type(block)))
|
||||
#super(ThreadedHistorySyncer, self).process(conn, block)
|
||||
self.process_func(conn, block)
|
||||
|
||||
|
||||
|
||||
class ThreadPoolHistorySyncer(HistorySyncer):
|
||||
|
||||
def __init__(self, conn_factory, thread_limit, backend, chain_interface, pre_callback=None, block_callback=None, post_callback=None, conn_limit=0):
|
||||
super(ThreadPoolHistorySyncer, self).__init__(backend, chain_interface, pre_callback, block_callback, post_callback)
|
||||
self.workers = []
|
||||
self.thread_limit = thread_limit
|
||||
if conn_limit == 0:
|
||||
self.conn_limit = self.thread_limit
|
||||
#self.conn_pool = queue.Queue(conn_limit)
|
||||
#self.queue = queue.Queue(thread_limit)
|
||||
#self.quit_queue = queue.Queue(1)
|
||||
#self.conn_pool = multiprocessing.Queue(conn_limit)
|
||||
#self.queue = multiprocessing.Queue(thread_limit)
|
||||
#self.quit_queue = multiprocessing.Queue(1)
|
||||
#self.lock = threading.Lock()
|
||||
#self.lock = multiprocessing.Lock()
|
||||
ThreadPoolTask.process_func = super(ThreadPoolHistorySyncer, self).process
|
||||
ThreadPoolTask.chain_interface = chain_interface
|
||||
#for i in range(thread_limit):
|
||||
#w = threading.Thread(target=self.worker)
|
||||
# w = multiprocessing.Process(target=self.worker)
|
||||
# self.workers.append(w)
|
||||
|
||||
#for i in range(conn_limit):
|
||||
# self.conn_pool.put(conn_factory())
|
||||
self.conn_factory = conn_factory
|
||||
self.worker_pool = None
|
||||
|
||||
|
||||
def terminate(self):
|
||||
#self.quit_queue.put(())
|
||||
super(ThreadPoolHistorySyncer, self).terminate()
|
||||
|
||||
|
||||
# def worker(self):
|
||||
# while True:
|
||||
# block_number = None
|
||||
# try:
|
||||
# block_number = self.queue.get(timeout=0.01)
|
||||
# except queue.Empty:
|
||||
# if self.quit_queue.qsize() > 0:
|
||||
# #logg.debug('{} received quit'.format(threading.current_thread().getName()))
|
||||
# logg.debug('{} received quit'.format(multiprocessing.current_process().name))
|
||||
# return
|
||||
# continue
|
||||
# conn = self.conn_pool.get()
|
||||
# try:
|
||||
# logg.debug('processing parent {} {}'.format(conn, block_number))
|
||||
# self.process_parent(conn, block_number)
|
||||
# except IndexError:
|
||||
# pass
|
||||
# except RPCException as e:
|
||||
# logg.error('RPC failure for block {}, resubmitting to queue: {}'.format(block, e))
|
||||
# self.queue.put(block_number)
|
||||
# conn = self.conn_pool.put(conn)
|
||||
#
|
||||
|
||||
|
||||
def process_single(self, conn, block, tx):
|
||||
self.filter.apply(conn, block, tx)
|
||||
|
||||
|
||||
def process(self, conn, block):
|
||||
pass
|
||||
|
||||
|
||||
def get(self, conn):
|
||||
if not self.running:
|
||||
raise SyncDone()
|
||||
|
||||
block_number = None
|
||||
tx_index = None
|
||||
flags = None
|
||||
((block_number, tx_index), flags) = self.backend.get()
|
||||
#try:
|
||||
#logg.debug('putting {}'.format(block.number))
|
||||
#self.queue.put((conn, block_number,), timeout=0.1)
|
||||
#self.queue.put(block_number, timeout=0.1)
|
||||
#except queue.Full:
|
||||
#logg.debug('queue full, try again')
|
||||
# return
|
||||
task = ThreadPoolTask()
|
||||
conn = self.conn_factory()
|
||||
self.worker_pool.apply_async(task.poolworker, (block_number, conn,), {}, foobarcb)
|
||||
|
||||
target, flags = self.backend.target()
|
||||
next_block = block_number + 1
|
||||
if next_block > target:
|
||||
#self.quit_queue.put(())
|
||||
self.worker_pool.close()
|
||||
raise SyncDone()
|
||||
self.backend.set(self.backend.block_height + 1, 0)
|
||||
|
||||
|
||||
# def get(self, conn):
|
||||
# try:
|
||||
# r = super(ThreadedHistorySyncer, self).get(conn)
|
||||
# return r
|
||||
# except SyncDone as e:
|
||||
# self.quit_queue.put(())
|
||||
# raise e
|
||||
|
||||
|
||||
def loop(self, interval, conn):
|
||||
self.worker_pool = multiprocessing.Pool(self.thread_limit)
|
||||
#for w in self.workers:
|
||||
# w.start()
|
||||
r = super(ThreadPoolHistorySyncer, self).loop(interval, conn)
|
||||
#for w in self.workers:
|
||||
# w.join()
|
||||
#while True:
|
||||
# try:
|
||||
# self.quit_queue.get_nowait()
|
||||
# except queue.Empty:
|
||||
# break
|
||||
time.sleep(1)
|
||||
self.worker_pool.join()
|
||||
|
||||
logg.info('workers done {}'.format(r))
|
||||
@ -1,81 +0,0 @@
|
||||
# standard imports
|
||||
import copy
|
||||
import logging
|
||||
import multiprocessing
|
||||
import os
|
||||
|
||||
# external iports
|
||||
from chainlib.eth.connection import RPCConnection
|
||||
# local imports
|
||||
from chainsyncer.driver.history import HistorySyncer
|
||||
from chainsyncer.driver.base import Syncer
|
||||
from .threadpool import ThreadPoolTask
|
||||
|
||||
logg = logging.getLogger(__name__)
|
||||
|
||||
|
||||
def sync_split(block_offset, block_target, count):
|
||||
block_count = block_target - block_offset
|
||||
if block_count < count:
|
||||
logg.warning('block count is less than thread count, adjusting thread count to {}'.format(block_count))
|
||||
count = block_count
|
||||
blocks_per_thread = int(block_count / count)
|
||||
|
||||
ranges = []
|
||||
for i in range(count):
|
||||
block_target = block_offset + blocks_per_thread
|
||||
offset = block_offset
|
||||
target = block_target -1
|
||||
ranges.append((offset, target,))
|
||||
block_offset = block_target
|
||||
return ranges
|
||||
|
||||
|
||||
class ThreadPoolRangeTask:
|
||||
|
||||
def __init__(self, backend, sync_range, chain_interface, syncer_factory=HistorySyncer, filters=[]):
|
||||
backend_start = backend.start()
|
||||
backend_target = backend.target()
|
||||
backend_class = backend.__class__
|
||||
tx_offset = 0
|
||||
flags = 0
|
||||
if sync_range[0] == backend_start[0][0]:
|
||||
tx_offset = backend_start[0][1]
|
||||
flags = backend_start[1]
|
||||
self.backend = backend_class.custom(backend.chain_spec, sync_range[1], block_offset=sync_range[0], tx_offset=tx_offset, flags=flags, flags_count=0)
|
||||
self.syncer = syncer_factory(self.backend, chain_interface)
|
||||
for fltr in filters:
|
||||
self.syncer.add_filter(fltr)
|
||||
|
||||
def start_loop(self, interval):
|
||||
conn = RPCConnection.connect(self.backend.chain_spec)
|
||||
return self.syncer.loop(interval, conn)
|
||||
|
||||
|
||||
class ThreadPoolRangeHistorySyncer:
|
||||
|
||||
def __init__(self, thread_count, backend, chain_interface, pre_callback=None, block_callback=None, post_callback=None, runlevel_callback=None):
|
||||
self.src_backend = backend
|
||||
self.thread_count = thread_count
|
||||
self.single_sync_offset = 0
|
||||
self.runlevel_callback = None
|
||||
backend_start = backend.start()
|
||||
backend_target = backend.target()
|
||||
self.ranges = sync_split(backend_start[0][0], backend_target[0], thread_count)
|
||||
self.chain_interface = chain_interface
|
||||
self.filters = []
|
||||
|
||||
|
||||
def add_filter(self, f):
|
||||
self.filters.append(f)
|
||||
|
||||
|
||||
def loop(self, interval, conn):
|
||||
self.worker_pool = multiprocessing.Pool(processes=self.thread_count)
|
||||
|
||||
for sync_range in self.ranges:
|
||||
task = ThreadPoolRangeTask(self.src_backend, sync_range, self.chain_interface, filters=self.filters)
|
||||
t = self.worker_pool.apply_async(task.start_loop, (0.1,))
|
||||
logg.debug('result of worker {}: {}'.format(t, t.get()))
|
||||
self.worker_pool.close()
|
||||
self.worker_pool.join()
|
||||
@ -1,15 +1,19 @@
|
||||
# standard imports
|
||||
import uuid
|
||||
|
||||
# local imports
|
||||
from chainsyncer.error import FilterDone
|
||||
|
||||
|
||||
class SyncSession:
|
||||
|
||||
def __init__(self, session_store):
|
||||
self.session_store = session_store
|
||||
self.filters = []
|
||||
self.start = self.session_store.start
|
||||
self.get = self.session_store.get
|
||||
self.started = self.session_store.started
|
||||
self.get = self.session_store.get
|
||||
self.next = self.session_store.next_item
|
||||
self.item = None
|
||||
|
||||
|
||||
def register(self, fltr):
|
||||
@ -18,17 +22,24 @@ class SyncSession:
|
||||
self.session_store.register(fltr)
|
||||
self.filters.append(fltr)
|
||||
|
||||
|
||||
def start(self, offset=0, target=-1):
|
||||
self.session_store.start(offset=offset, target=target)
|
||||
self.item = self.session_store.next_item()
|
||||
|
||||
|
||||
def filter(self, conn, block, tx):
|
||||
self.sync_state.connect()
|
||||
for fltr in filters:
|
||||
self.session_store.connect()
|
||||
for fltr in self.filters:
|
||||
try:
|
||||
self.sync_start.advance()
|
||||
self.item.advance()
|
||||
except FilterDone:
|
||||
break
|
||||
interrupt = fltr(conn, block, tx)
|
||||
try:
|
||||
self.sync_start.release(interrupt=interrupt)
|
||||
except FilterDone:
|
||||
break
|
||||
self.sync_start.disconnect()
|
||||
interrupt = fltr.filter(conn, block, tx)
|
||||
self.item.release(interrupt=interrupt)
|
||||
try:
|
||||
self.item.advance()
|
||||
raise BackendError('filter state inconsitent with filter list')
|
||||
except FilterDone:
|
||||
self.item.reset()
|
||||
self.session_store.disconnect()
|
||||
|
||||
@ -5,6 +5,7 @@ import logging
|
||||
logg = logging.getLogger(__name__)
|
||||
|
||||
|
||||
# TODO: properly clarify interface shared with syncfsstore, move to filter module?
|
||||
class SyncState:
|
||||
|
||||
def __init__(self, state_store):
|
||||
@ -61,7 +62,8 @@ class SyncState:
|
||||
def connect(self):
|
||||
if not self.synced:
|
||||
for v in self.state_store.all():
|
||||
self.state_store.sync(v)
|
||||
k = self.state_store.from_name(v)
|
||||
self.state_store.sync(k)
|
||||
self.__syncs[v] = True
|
||||
self.synced = True
|
||||
self.connected = True
|
||||
@ -71,10 +73,14 @@ class SyncState:
|
||||
self.connected = False
|
||||
|
||||
|
||||
def start(self):
|
||||
self.state_store.start()
|
||||
def start(self, offset=0, target=-1):
|
||||
self.state_store.start(offset=offset, target=target)
|
||||
self.started = True
|
||||
|
||||
|
||||
def get(self, k):
|
||||
raise NotImplementedError()
|
||||
return None
|
||||
|
||||
|
||||
def next_item(self):
|
||||
return None
|
||||
|
||||
@ -15,6 +15,7 @@ from chainsyncer.error import (
|
||||
FilterDone,
|
||||
InterruptError,
|
||||
IncompleteFilterError,
|
||||
SyncDone,
|
||||
)
|
||||
logg = logging.getLogger(__name__)
|
||||
|
||||
@ -58,6 +59,15 @@ class SyncFsItem:
|
||||
if self.filter_state.state(self.state_key) & self.filter_state.from_name('DONE') == 0:
|
||||
raise IncompleteFilterError('reset attempt on {} when incomplete'.format(self.state_key))
|
||||
self.filter_state.move(self.state_key, self.filter_state.from_name('RESET'))
|
||||
|
||||
v = self.sync_state.get(self.state_key)
|
||||
block_number = int.from_bytes(v, 'big')
|
||||
block_number += 1
|
||||
if self.target >= 0 and block_number > self.target:
|
||||
raise SyncDone(self.target)
|
||||
|
||||
v = block_number.to_bytes(4, 'big')
|
||||
self.sync_state.replace(self.state_key, v)
|
||||
|
||||
|
||||
def advance(self):
|
||||
@ -82,6 +92,7 @@ class SyncFsItem:
|
||||
if self.skip_filter:
|
||||
raise FilterDone()
|
||||
if interrupt:
|
||||
self.filter_state.unset(self.state_key, self.filter_state.from_name('LOCK'))
|
||||
self.filter_state.set(self.state_key, self.filter_state.from_name('INTERRUPT'))
|
||||
self.filter_state.set(self.state_key, self.filter_state.from_name('DONE'))
|
||||
return
|
||||
@ -106,6 +117,7 @@ class SyncFsStore:
|
||||
self.first = False
|
||||
self.target = None
|
||||
self.items = {}
|
||||
self.item_keys = []
|
||||
self.started = False
|
||||
|
||||
default_path = os.path.join(base_path, 'default')
|
||||
@ -183,6 +195,7 @@ class SyncFsStore:
|
||||
item_target = thresholds[i+1]
|
||||
o = SyncFsItem(block_number, item_target, self.state, self.filter_state, started=True)
|
||||
self.items[block_number] = o
|
||||
self.item_keys.append(block_number)
|
||||
logg.info('added {}'.format(o))
|
||||
|
||||
fp = os.path.join(self.session_path, str(target))
|
||||
@ -198,8 +211,10 @@ class SyncFsStore:
|
||||
f.close()
|
||||
self.target = int(v)
|
||||
|
||||
logg.debug('target {}'.format(self.target))
|
||||
|
||||
def start(self, offset=0, target=0):
|
||||
|
||||
def start(self, offset=0, target=-1):
|
||||
self.__load(target)
|
||||
|
||||
if self.first:
|
||||
@ -210,10 +225,13 @@ class SyncFsStore:
|
||||
self.filter_state.put(block_number_str)
|
||||
o = SyncFsItem(block_number, target, self.state, self.filter_state)
|
||||
self.items[block_number] = o
|
||||
self.item_keys.append(block_number)
|
||||
elif offset > 0:
|
||||
logg.warning('block number argument {} for start ignored for already initiated sync {}'.format(offset, self.session_id))
|
||||
self.started = True
|
||||
|
||||
self.item_keys.sort()
|
||||
|
||||
|
||||
def stop(self):
|
||||
if self.target == 0:
|
||||
@ -224,3 +242,19 @@ class SyncFsStore:
|
||||
|
||||
def get(self, k):
|
||||
return self.items[k]
|
||||
|
||||
|
||||
def next_item(self):
|
||||
try:
|
||||
k = self.item_keys.pop(0)
|
||||
except IndexError:
|
||||
return None
|
||||
return self.items[k]
|
||||
|
||||
|
||||
def connect(self):
|
||||
self.filter_state.connect()
|
||||
|
||||
|
||||
def disconnect(self):
|
||||
self.filter_state.disconnect()
|
||||
|
||||
@ -75,7 +75,7 @@ class MockStore(State):
|
||||
super(MockStore, self).__init__(bits, check_alias=False)
|
||||
|
||||
|
||||
def start(self):
|
||||
def start(self, offset=0, target=-1):
|
||||
pass
|
||||
|
||||
|
||||
@ -89,6 +89,7 @@ class MockFilter:
|
||||
z = h.digest()
|
||||
self.z = z
|
||||
self.brk = brk
|
||||
self.contents = []
|
||||
|
||||
|
||||
def sum(self):
|
||||
@ -100,6 +101,7 @@ class MockFilter:
|
||||
|
||||
|
||||
def filter(self, conn, block, tx):
|
||||
self.contents.append((block.number, tx.index, tx.hash,))
|
||||
return self.brk
|
||||
|
||||
|
||||
|
||||
75
tests/test_filter.py
Normal file
75
tests/test_filter.py
Normal file
@ -0,0 +1,75 @@
|
||||
# standard imports
|
||||
import unittest
|
||||
import tempfile
|
||||
import shutil
|
||||
import logging
|
||||
import stat
|
||||
import os
|
||||
|
||||
# local imports
|
||||
from chainsyncer.store.fs import SyncFsStore
|
||||
from chainsyncer.session import SyncSession
|
||||
from chainsyncer.error import (
|
||||
LockError,
|
||||
FilterDone,
|
||||
IncompleteFilterError,
|
||||
)
|
||||
from chainsyncer.unittest import (
|
||||
MockFilter,
|
||||
MockConn,
|
||||
MockTx,
|
||||
MockBlock,
|
||||
)
|
||||
|
||||
logging.basicConfig(level=logging.DEBUG)
|
||||
logg = logging.getLogger()
|
||||
|
||||
|
||||
class TestFilter(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.path = tempfile.mkdtemp()
|
||||
self.store = SyncFsStore(self.path)
|
||||
self.session = SyncSession(self.store)
|
||||
self.session.start()
|
||||
self.conn = MockConn()
|
||||
|
||||
|
||||
def tearDown(self):
|
||||
shutil.rmtree(self.path)
|
||||
|
||||
|
||||
def test_filter_basic(self):
|
||||
fltr_one = MockFilter('foo')
|
||||
self.session.register(fltr_one)
|
||||
fltr_two = MockFilter('bar')
|
||||
self.session.register(fltr_two)
|
||||
|
||||
tx_hash = os.urandom(32).hex()
|
||||
tx = MockTx(42, tx_hash)
|
||||
block = MockBlock(13, [tx_hash])
|
||||
self.session.filter(self.conn, block, tx)
|
||||
|
||||
self.assertEqual(len(fltr_one.contents), 1)
|
||||
self.assertEqual(len(fltr_two.contents), 1)
|
||||
|
||||
|
||||
|
||||
def test_filter_interrupt(self):
|
||||
fltr_one = MockFilter('foo', brk=True)
|
||||
self.session.register(fltr_one)
|
||||
fltr_two = MockFilter('bar')
|
||||
self.session.register(fltr_two)
|
||||
|
||||
tx_hash = os.urandom(32).hex()
|
||||
tx = MockTx(42, tx_hash)
|
||||
block = MockBlock(13, [tx_hash])
|
||||
self.session.filter(self.conn, block, tx)
|
||||
|
||||
self.assertEqual(len(fltr_one.contents), 1)
|
||||
self.assertEqual(len(fltr_two.contents), 0)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
||||
|
||||
@ -13,6 +13,7 @@ from chainsyncer.error import (
|
||||
LockError,
|
||||
FilterDone,
|
||||
IncompleteFilterError,
|
||||
SyncDone,
|
||||
)
|
||||
from chainsyncer.unittest import MockFilter
|
||||
|
||||
@ -25,6 +26,7 @@ class TestFs(unittest.TestCase):
|
||||
def setUp(self):
|
||||
self.path = tempfile.mkdtemp()
|
||||
|
||||
|
||||
def tearDown(self):
|
||||
shutil.rmtree(self.path)
|
||||
|
||||
@ -167,6 +169,23 @@ class TestFs(unittest.TestCase):
|
||||
|
||||
o.reset()
|
||||
|
||||
|
||||
def test_sync_process_done(self):
|
||||
store = SyncFsStore(self.path)
|
||||
session = SyncSession(store)
|
||||
|
||||
fltr_one = MockFilter('foo')
|
||||
session.register(fltr_one)
|
||||
|
||||
session.start(target=0)
|
||||
o = session.get(0)
|
||||
o.advance()
|
||||
o.release()
|
||||
with self.assertRaises(FilterDone):
|
||||
o.advance()
|
||||
with self.assertRaises(SyncDone):
|
||||
o.reset()
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
||||
|
||||
68
tests/test_session.py
Normal file
68
tests/test_session.py
Normal file
@ -0,0 +1,68 @@
|
||||
# standard imports
|
||||
import unittest
|
||||
import tempfile
|
||||
import shutil
|
||||
import logging
|
||||
import stat
|
||||
import os
|
||||
|
||||
# local imports
|
||||
from chainsyncer.store.fs import SyncFsStore
|
||||
from chainsyncer.session import SyncSession
|
||||
from chainsyncer.error import (
|
||||
LockError,
|
||||
FilterDone,
|
||||
IncompleteFilterError,
|
||||
SyncDone,
|
||||
)
|
||||
from chainsyncer.unittest import (
|
||||
MockFilter,
|
||||
MockConn,
|
||||
MockTx,
|
||||
MockBlock,
|
||||
)
|
||||
from chainsyncer.driver import SyncDriver
|
||||
|
||||
logging.basicConfig(level=logging.DEBUG)
|
||||
logg = logging.getLogger()
|
||||
|
||||
|
||||
class TestFilter(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.path = tempfile.mkdtemp()
|
||||
self.store = SyncFsStore(self.path)
|
||||
self.conn = MockConn()
|
||||
|
||||
|
||||
def tearDown(self):
|
||||
shutil.rmtree(self.path)
|
||||
|
||||
|
||||
def test_filter_basic(self):
|
||||
session = SyncSession(self.store)
|
||||
session.start(target=1)
|
||||
fltr_one = MockFilter('foo')
|
||||
session.register(fltr_one)
|
||||
|
||||
tx_hash = os.urandom(32).hex()
|
||||
tx = MockTx(42, tx_hash)
|
||||
block = MockBlock(0, [tx_hash])
|
||||
session.filter(self.conn, block, tx)
|
||||
|
||||
tx_hash = os.urandom(32).hex()
|
||||
tx = MockTx(42, tx_hash)
|
||||
block = MockBlock(1, [tx_hash])
|
||||
with self.assertRaises(SyncDone):
|
||||
session.filter(self.conn, block, tx)
|
||||
self.assertEqual(len(fltr_one.contents), 2)
|
||||
|
||||
|
||||
|
||||
def test_driver(self):
|
||||
drv = SyncDriver(self.conn, self.store)
|
||||
drv.run()
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
||||
Loading…
Reference in New Issue
Block a user