67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
# standard imports
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import logging
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# external imports
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from chainlib.eth.address import to_checksum_address
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from chainlib.eth.tx import unpack
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from chainlib.error import JSONRPCException
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from chainqueue.enum import StatusBits
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from chainqueue.sql.query import count_tx
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from hexathon import strip_0x
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#logg = logging.getLogger(__name__)
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logg = logging.getLogger()
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class Dispatcher:
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status_inflight_mask = StatusBits.IN_NETWORK | StatusBits.FINAL
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status_inflight_mask_match = StatusBits.IN_NETWORK
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def __init__(self, chain_spec, adapter, limit=100):
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self.address_counts = {}
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self.chain_spec = chain_spec
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self.adapter = adapter
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self.limit = limit
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def __init_count(self, address, session):
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c = self.address_counts.get(address)
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if c == None:
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c = self.limit - count_tx(self.chain_spec, address, self.status_inflight_mask, self.status_inflight_mask_match, session=session)
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if c < 0:
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c = 0
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self.address_counts[address] = c
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return c
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def get_count(self, address, session):
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return self.__init_count(address, session)
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def inc_count(self, address, session):
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self.__init_count(address, session)
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self.address_counts[address] -= 1
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def process(self, rpc, session):
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c = 0
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txs = self.adapter.upcoming(self.chain_spec, session=session)
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for k in txs.keys():
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signed_tx_bytes = bytes.fromhex(strip_0x(txs[k]))
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tx_obj = unpack(signed_tx_bytes, self.chain_spec)
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sender = to_checksum_address(tx_obj['from'])
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address_count = self.get_count(sender, session)
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if address_count == 0:
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logg.debug('too many inflight txs for {}, skipping {}'.format(sender, k))
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continue
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logg.debug('processing tx {} {}'.format(k, txs[k]))
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try:
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self.adapter.dispatch(self.chain_spec, rpc, k, txs[k], session)
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except JSONRPCException as e:
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logg.error('dispatch failed for {}: {}'.format(k, e))
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continue
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self.inc_count(sender, session)
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c += 1
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return c
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