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annotate tests/implementation_testing.py @ 24:139c77ea99b7

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add plyvel
author Dennis Concepcion Martin <dennisconcepcionmartin@gmail.com>
date Sun, 14 Nov 2021 17:36:43 +0100
parents 32061555853c
children
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1 import os
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2 import plyvel
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3 import tempfile
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4 from bitcaviar_plus.block import deserialize_block
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5 from bitcaviar_plus.block import __deserialize_header
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6 from bitcaviar_plus.errors import InvalidMagicBytes
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8
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9 def parse_genesis_block():
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10 blk_path = '/bitcoin-node/.bitcoin/blocks/blk00355.dat'
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12 with open(blk_path, 'rb') as f:
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13 file_size = os.path.getsize(blk_path)
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14 while f.tell() < file_size:
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15 try:
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16 block = deserialize_block(f)
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17 except InvalidMagicBytes as e:
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18 print(e)
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21 # noinspection PyUnresolvedReferences
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22 def iterate_leveldb_keys():
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23 db = plyvel.DB('/bitcoin-node/.bitcoin/blocks/index/', create_if_missing=False)
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24 for key, value in db:
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25 print('---- RAW KEY ----')
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26 print(key.hex())
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27 print('---- LITTLE ENDIAN KEY ----')
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28 print(key[::-1].hex())
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29 print('---- RAW VALUE ----')
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30 print(value[::-1].hex())
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31 exit()
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34 # noinspection PyUnresolvedReferences
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35 def search_block():
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36 db = plyvel.DB('/bitcoin-node/.bitcoin/blocks/index/', create_if_missing=False)
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37 search_type = bytes.fromhex('62') # 'b' (block) in hex is 62
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38 block_hash = bytes.fromhex('000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f')[::-1]
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39 key = search_type + block_hash
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40 value = db.get(key)
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41 print(value.hex())
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42 db.close()
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45 if __name__ == '__main__':
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46 search_block()