29 lines
1009 B
Python
29 lines
1009 B
Python
import struct
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import lib.logger
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log = lib.logger.get_logger('extronance')
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class ExtranonceCounter(object):
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'''Implementation of a counter producing
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unique extranonce across all pool instances.
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This is just dumb "quick&dirty" solution,
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but it can be changed at any time without breaking anything.'''
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def __init__(self, instance_id):
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log.debug("Got to Extronance Counter")
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if instance_id < 0 or instance_id > 31:
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raise Exception("Current ExtranonceCounter implementation needs an instance_id in <0, 31>.")
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# Last 5 most-significant bits represents instance_id
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# The rest is just an iterator of jobs.
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self.counter = instance_id << 27
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self.size = struct.calcsize('>L')
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def get_size(self):
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'''Return expected size of generated extranonce in bytes'''
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return self.size
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def get_new_bin(self):
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self.counter += 1
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return struct.pack('>L', self.counter)
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