def __init__(self, bare_message, sender_id):
orig_header, orig_data = bft_msgs.unpack_reply(bare_message)
self.common_header = CommonReplyHeader(orig_header.req_seq_num)
rsi_loc = orig_header.length - orig_header.rsi_length
self.rsi_data = orig_data[rsi_loc:]
self.common_data = orig_data[:rsi_loc]
self.sender_id = sender_id
self.primary_id = orig_header.primary_id
def test_unpack_reply(self):
msg = b'hello'
primary_id = 0
req_seq_num = 1
packed = bft_msgs.pack_reply(primary_id, req_seq_num, msg)
(header, unpacked_msg) = bft_msgs.unpack_reply(packed)
self.assertEqual(primary_id, header.primary_id)
self.assertEqual(req_seq_num, header.req_seq_num)
self.assertEqual(msg, unpacked_msg)
def test_unpack_reply(self):
msg = b'hello'
primary_id = 0
req_seq_num = 1
result = 1
rsi_length = 5
packed = bft_msgs.pack_reply(primary_id, req_seq_num, msg, result, rsi_length)
(header, unpacked_msg) = bft_msgs.unpack_reply(packed)
self.assertEqual(primary_id, header.primary_id)
self.assertEqual(req_seq_num, header.req_seq_num)
self.assertEqual(result, header.result)
self.assertEqual(rsi_length, header.rsi_length)
self.assertEqual(msg, unpacked_msg)
async def recv(self, cancel_scope):
"""
Receive reply messages until a quorum is achieved or the enclosing
cancel_scope times out.
"""
while True:
data, sender = await self.sock.recvfrom(self.config.max_msg_size)
header, reply = bft_msgs.unpack_reply(data)
if self.valid_reply(header):
self.replies[sender] = (header, reply)
if self.has_quorum():
# This cancel will propagate upward and gracefully terminate all
# coroutines. self.reply will get set in self.has_quorum()
cancel_scope.cancel()