Host-customized fork of https://github.com/tecnovert/basicswap/
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28 lines
723 B
28 lines
723 B
# -*- coding: utf-8 -*- |
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# Copyright (c) 2024 tecnovert |
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# Distributed under the MIT software license, see the accompanying |
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# file LICENSE or http://www.opensource.org/licenses/mit-license.php. |
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def decode_varint(b: bytes, offset: int = 0) -> (int, int): |
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i: int = 0 |
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num_bytes: int = 0 |
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while True: |
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c = b[offset + num_bytes] |
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i += (c & 0x7F) << (num_bytes * 7) |
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num_bytes += 1 |
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if not c & 0x80: |
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break |
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if num_bytes > 8: |
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raise ValueError('Too many bytes') |
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return i, num_bytes |
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def encode_varint(i: int) -> bytes: |
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b = bytearray() |
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while i > 0x7F: |
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b += bytes(((i & 0x7F) | 0x80,)) |
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i = (i >> 7) |
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b += bytes((i,)) |
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return b
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