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Separate ranges calculation from backend creation

This commit is contained in:
nolash 2021-09-27 21:37:48 +02:00
parent a49c152e24
commit 0e37914991
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
4 changed files with 83 additions and 53 deletions
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1
chainsyncer/driver/poll.py
View File

@ -30,7 +30,6 @@ class BlockPollSyncer(Syncer):
:rtype: tuple
:returns: See chainsyncer.backend.base.Backend.get
"""
raise ValueError()
(pair, fltr) = self.backend.get()
start_tx = pair[1]

70
chainsyncer/driver/threadrange.py
View File

@ -11,58 +11,72 @@ from .threadpool import ThreadPoolTask
logg = logging.getLogger()
def range_to_backends(chain_spec, block_offset, tx_offset, block_target, flags, flags_count, backend_class, backend_count):
#def range_to_backends(chain_spec, block_offset, tx_offset, block_target, flags, flags_count, backend_class, backend_count):
def sync_split(block_offset, block_target, count):
block_count = block_target - block_offset
if block_count < backend_count:
if block_count < count:
logg.warning('block count is less than thread count, adjusting thread count to {}'.format(block_count))
backend_count = block_count
blocks_per_thread = int(block_count / backend_count)
count = block_count
blocks_per_thread = int(block_count / count)
backends = []
for i in range(backend_count):
#backends = []
#for i in range(backend_count):
ranges = []
for i in range(count):
block_target = block_offset + blocks_per_thread
backend = backend_class.custom(chain_spec, block_target - 1, block_offset=block_offset, tx_offset=tx_offset, flags=flags, flags_count=flags_count)
backends.append(backend)
#backend = backend_class.custom(chain_spec, block_target - 1, block_offset=block_offset, tx_offset=tx_offset, flags=flags, flags_count=flags_count)
offset = block_offset
target = block_target -1
ranges.append((offset, target,))
block_offset = block_target
tx_offset = 0
flags = 0
# tx_offset = 0
# flags = 0
return backends
# return backends
return ranges
class ThreadPoolRangeTask:
loop_func = None
def __init__(self, backend, conn):
pass
def __init__(self, backend, sync_range, conn_factory, chain_interface, syncer_factory=HistorySyncer):
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)
self.conn_factory = conn_factory
def foo(self, a, b):
return self.loop_func()
def start_loop(self, interval):
conn = self.conn_factory()
return self.syncer.loop(interval, conn)
class ThreadPoolRangeHistorySyncer(HistorySyncer):
class ThreadPoolRangeHistorySyncer:
def __init__(self, conn_factory, thread_count, backends, chain_interface, loop_func=HistorySyncer.loop, pre_callback=None, block_callback=None, post_callback=None, runlevel_callback=None):
if thread_count > len(backends):
raise ValueError('thread count {} is greater than than backend count {}'.format(thread_count, len(backends)))
self.backends = backends
def __init__(self, conn_factory, 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.conn_factory = conn_factory
self.single_sync_offset = 0
self.runlevel_callback = None
ThreadPoolRangeTask.loop_func = loop_func
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
def loop(self, interval, conn):
super_loop = super(ThreadPoolRangeHistorySyncer, self).loop
self.worker_pool = multiprocessing.Pool(processes=self.thread_count)
for backend in self.backends:
for sync_range in self.ranges:
conn = self.conn_factory()
task = ThreadPoolRangeTask(backend, conn)
t = self.worker_pool.apply_async(task.foo, (backend, conn,))
task = ThreadPoolRangeTask(self.src_backend, sync_range, self.conn_factory, self.chain_interface)
t = self.worker_pool.apply_async(task.start_loop, (0.1,))
print(t.get())
self.worker_pool.close()
self.worker_pool.join()

2
tests/chainsyncer_base.py
View File

@ -9,6 +9,7 @@ import os
from chainlib.chain import ChainSpec
from chainlib.interface import ChainInterface
from chainlib.eth.tx import receipt
from chainlib.eth.block import block_by_number
# local imports
from chainsyncer.db import dsn_from_config
@ -26,6 +27,7 @@ class EthChainInterface(ChainInterface):
def __init__(self):
self._tx_receipt = receipt
self._block_by_number = block_by_number
class TestBase(unittest.TestCase):

63
tests/test_thread_range.py
View File

@ -8,7 +8,8 @@ from chainlib.chain import ChainSpec
# local imports
from chainsyncer.backend.memory import MemBackend
from chainsyncer.driver.threadrange import (
range_to_backends,
# range_to_backends,
sync_split,
ThreadPoolRangeHistorySyncer,
)
from chainsyncer.unittest.base import MockConn
@ -22,34 +23,48 @@ logg = logging.getLogger()
class TestThreadRange(TestBase):
def test_range_split_even(self):
chain_spec = ChainSpec('evm', 'bloxberg', 8996, 'foo')
backends = range_to_backends(chain_spec, 5, 3, 20, 5, 10, MemBackend, 3)
self.assertEqual(len(backends), 3)
self.assertEqual(((5, 3), 5), backends[0].start())
self.assertEqual((9, 1023), backends[0].target())
self.assertEqual(((10, 0), 0), backends[1].start())
self.assertEqual((14, 1023), backends[1].target())
self.assertEqual(((15, 0), 0), backends[2].start())
self.assertEqual((19, 1023), backends[2].target())
def test_range_split_underflow(self):
chain_spec = ChainSpec('evm', 'bloxberg', 8996, 'foo')
backends = range_to_backends(chain_spec, 5, 3, 7, 5, 10, MemBackend, 3)
self.assertEqual(len(backends), 2)
self.assertEqual(((5, 3), 5), backends[0].start())
self.assertEqual((5, 1023), backends[0].target())
self.assertEqual(((6, 0), 0), backends[1].start())
self.assertEqual((6, 1023), backends[1].target())
ranges = sync_split(5, 20, 3)
self.assertEqual(len(ranges), 3)
self.assertEqual(ranges[0], (5, 9))
self.assertEqual(ranges[1], (10, 14))
self.assertEqual(ranges[2], (15, 19))
# def test_range_split_even(self):
# chain_spec = ChainSpec('evm', 'bloxberg', 8996, 'foo')
# backends = range_to_backends(chain_spec, 5, 3, 20, 5, 10, MemBackend, 3)
# self.assertEqual(len(backends), 3)
# self.assertEqual(((5, 3), 5), backends[0].start())
# self.assertEqual((9, 1023), backends[0].target())
# self.assertEqual(((10, 0), 0), backends[1].start())
# self.assertEqual((14, 1023), backends[1].target())
# self.assertEqual(((15, 0), 0), backends[2].start())
# self.assertEqual((19, 1023), backends[2].target())
#
#
# def test_range_split_underflow(self):
# chain_spec = ChainSpec('evm', 'bloxberg', 8996, 'foo')
# backends = range_to_backends(chain_spec, 5, 3, 7, 5, 10, MemBackend, 3)
# self.assertEqual(len(backends), 2)
# self.assertEqual(((5, 3), 5), backends[0].start())
# self.assertEqual((5, 1023), backends[0].target())
# self.assertEqual(((6, 0), 0), backends[1].start())
# self.assertEqual((6, 1023), backends[1].target())
# def test_range_syncer(self):
# chain_spec = ChainSpec('evm', 'bloxberg', 8996, 'foo')
# backends = range_to_backends(chain_spec, 5, 3, 20, 5, 10, MemBackend, 3)
#
# syncer = ThreadPoolRangeHistorySyncer(MockConn, 3, backends, self.interface)
# syncer.loop(1, None)
#
def test_range_syncer(self):
chain_spec = ChainSpec('evm', 'bloxberg', 8996, 'foo')
backends = range_to_backends(chain_spec, 5, 3, 20, 5, 10, MemBackend, 3)
syncer = ThreadPoolRangeHistorySyncer(MockConn, 3, backends, self.interface)
syncer.loop(1, None)
backend = MemBackend.custom(chain_spec, 20, 5, 3, 5, 10)
syncer = ThreadPoolRangeHistorySyncer(MockConn, 3, backend, self.interface)
syncer.loop(0.1, None)
if __name__ == '__main__':