58 lines
1.3 KiB
Python
58 lines
1.3 KiB
Python
# standard imports
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import logging
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logg = logging.getLogger().getChild(__name__)
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class MemBackend:
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def __init__(self, chain_spec, object_id, target_block=None):
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self.object_id = object_id
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self.chain_spec = chain_spec
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self.block_height = 0
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self.tx_height = 0
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self.flags = 0
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self.target_block = target_block
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self.db_session = None
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self.filter_names = []
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self.filter_values = []
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def connect(self):
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pass
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def disconnect(self):
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pass
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def set(self, block_height, tx_height):
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logg.debug('stateless backend received {} {}'.format(block_height, tx_height))
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self.block_height = block_height
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self.tx_height = tx_height
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for i in range(len(self.filter_values)):
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self.filter_values[i] = False
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def get(self):
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return ((self.block_height, self.tx_height), self.flags)
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def target(self):
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return (self.target_block, self.flags)
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def register_filter(self, name):
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self.filter_names.append(name)
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self.filter_values.append(False)
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def complete_filter(self, n):
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self.filter_values[n-1] = True
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logg.debug('set filter {}'.format(self.filter_names[n-1]))
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def __str__(self):
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return "syncer membackend chain {} cursor".format(self.get())
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