cic-stack/apps/cic-eth/cic_eth/stat.py

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2021-04-07 08:24:10 +02:00
# standard imports
import logging
# external imports
from chainlib.stat import ChainStat
from chainlib.eth.block import (
block_latest,
block_by_number,
Block,
)
logg = logging.getLogger().getChild(__name__)
BLOCK_SAMPLES = 10
def init_chain_stat(rpc, block_start=0):
stat = ChainStat()
if block_start == 0:
o = block_latest()
r = rpc.do(o)
block_start = int(r, 16)
for i in range(BLOCK_SAMPLES):
o = block_by_number(block_start-10+i)
block_src = rpc.do(o)
logg.debug('block {}'.format(block_src))
block = Block(block_src)
stat.block_apply(block)
logg.debug('calculated block time {} from {} block samples'.format(stat.block_average(), BLOCK_SAMPLES))
return stat