def __init__(self, magic: int = None, block_hash: BtcObjectHash = None, transactions: List[memoryview] = None,
# pyre-fixme[9]: buf has type `memoryview`; used as `None`.
buf: memoryview = None):
if buf is None:
total_tx_size = sum(len(tx) for tx in transactions)
# pyre-fixme[9]: buf has type `memoryview`; used as `bytearray`.
buf = bytearray(BTC_HDR_COMMON_OFF + BTC_SHA_HASH_LEN + BTC_VARINT_MIN_SIZE + total_tx_size)
off = BTC_HDR_COMMON_OFF
buf[off:off + BTC_SHA_HASH_LEN] = block_hash.get_big_endian()
off += BTC_SHA_HASH_LEN
off += pack_int_to_btc_varint(len(transactions), buf, off)
for tx in transactions:
buf[off:off + len(tx)] = tx
off += len(tx)
self.buf = buf
super(BlockTransactionsBtcMessage, self).__init__(magic, self.MESSAGE_TYPE, off - BTC_HDR_COMMON_OFF, buf)
else:
self.buf = buf
self._memoryview = memoryview(buf)
self._magic = self._command = self._payload_len = self._checksum = None
self._payload = None
self._block_hash = None
# pyre-fixme[8]: Attribute has type `List[int]`; used as `None`.
self._transactions: List[int] = None
def __init__(
self,
magic: int = None,
block_hash: BtcObjectHash = None,
indices: List[int] = None,
# pyre-fixme[9]: buf has type `memoryview`; used as `None`.
buf: memoryview = None):
if buf is None:
# pyre-fixme[9]: buf has type `memoryview`; used as `bytearray`.
buf = bytearray(BTC_HDR_COMMON_OFF + BTC_SHA_HASH_LEN +
BTC_VARINT_MIN_SIZE +
BTC_VARINT_MIN_SIZE * len(indices))
off = BTC_HDR_COMMON_OFF
buf[off:off + BTC_SHA_HASH_LEN] = block_hash.get_big_endian()
off += BTC_SHA_HASH_LEN
off += pack_int_to_btc_varint(len(indices), buf, off)
last_real_index = -1
for real_index in indices:
diff = real_index - last_real_index - 1
last_real_index = real_index
off += pack_int_to_btc_varint(diff, buf, off)
self.buf = buf
super(GetBlockTransactionsBtcMessage,
self).__init__(magic, self.MESSAGE_TYPE,
off - BTC_HDR_COMMON_OFF, buf)
else:
self.buf = buf
self._memoryview = memoryview(buf)
self._magic = self._command = self._payload_len = self._checksum = None
self._payload = None
self._block_hash = None
# pyre-fixme[8]: Attribute has type `List[int]`; used as `None`.
self._indices: List[int] = None
