43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
# standard imports
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import uuid
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import logging
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# local imports
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from chainsyncer.error import FilterDone
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logg = logging.getLogger(__name__)
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class SyncSession:
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def __init__(self, session_store):
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self.session_store = session_store
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self.started = self.session_store.started
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self.get = self.session_store.get
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self.next = self.session_store.next_item
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self.item = None
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self.filters = self.session_store.filters
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def start(self, offset=0, target=-1):
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self.session_store.start(offset=offset, target=target)
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self.item = self.session_store.next_item()
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return self.item
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def stop(self, item):
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self.session_store.stop(item)
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def filter(self, conn, block, tx):
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self.session_store.connect()
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for fltr in self.filters:
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logg.debug('executing filter {}'.format(fltr))
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self.item.advance()
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interrupt = fltr.filter(conn, block, tx)
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if not self.item.release(interrupt=interrupt):
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break
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self.item.reset()
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self.next()
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self.session_store.disconnect()
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