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