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Prevent unnecessary copying of raw blocks

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This commit is contained in:
Neil Booth 2017-07-30 20:47:54 +09:00
parent 3eef0ba4cf
commit f696a7933d
2 changed files with 7 additions and 7 deletions
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10
lib/coins.py
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@ -273,7 +273,7 @@ class Coin(object):
def block(cls, raw_block, height): def block(cls, raw_block, height):
'''Return a Block namedtuple given a raw block and its height.''' '''Return a Block namedtuple given a raw block and its height.'''
header = cls.block_header(raw_block, height) header = cls.block_header(raw_block, height)
txs = cls.DESERIALIZER(raw_block[len(header):]).read_tx_block() txs = cls.DESERIALIZER(raw_block, start=len(header)).read_tx_block()
return Block(raw_block, header, txs) return Block(raw_block, header, txs)
@classmethod @classmethod
@ -313,8 +313,8 @@ class AuxPowMixin(object):
@classmethod @classmethod
def block_header(cls, block, height): def block_header(cls, block, height):
'''Return the AuxPow block header bytes''' '''Return the AuxPow block header bytes'''
block = cls.DESERIALIZER(block) deserializer = cls.DESERIALIZER(block)
return block.read_header(height, cls.BASIC_HEADER_SIZE) return deserializer.read_header(height, cls.BASIC_HEADER_SIZE)
class Bitcoin(Coin): class Bitcoin(Coin):
@ -762,8 +762,8 @@ class Zcash(Coin):
@classmethod @classmethod
def block_header(cls, block, height): def block_header(cls, block, height):
'''Return the block header bytes''' '''Return the block header bytes'''
block = cls.DESERIALIZER(block) deserializer = cls.DESERIALIZER(block)
return block.read_header(height, cls.BASIC_HEADER_SIZE) return deserializer.read_header(height, cls.BASIC_HEADER_SIZE)
class Einsteinium(Coin): class Einsteinium(Coin):

4
lib/tx.py
View File

@ -75,10 +75,10 @@ class Deserializer(object):
millions of times during sync. millions of times during sync.
''' '''
def __init__(self, binary): def __init__(self, binary, start=0):
assert isinstance(binary, bytes) assert isinstance(binary, bytes)
self.binary = binary self.binary = binary
self.cursor = 0 self.cursor = start
def read_tx(self): def read_tx(self):
'''Return a (Deserialized TX, TX_HASH) pair. '''Return a (Deserialized TX, TX_HASH) pair.