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interface: small clean-up

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SomberNight 2018-09-11 22:16:30 +02:00
parent a5b3f809ce
commit ab3c3c5ed7
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1 changed files with 12 additions and 11 deletions
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23
electrum/interface.py
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@ -289,8 +289,9 @@ class Interface(PrintError):
res = await self.session.send_request('blockchain.block.header', [height], timeout=timeout)
return blockchain.deserialize_header(bytes.fromhex(res), height)
async def request_chunk(self, idx, tip):
return await self.network.request_chunk(idx, tip, self.session)
async def request_chunk(self, start_height, tip):
self.print_error("requesting chunk from height {}".format(start_height))
return await self.network.request_chunk(start_height, tip, self.session)
async def open_session(self, sslc, exit_early):
header_queue = asyncio.Queue()
@ -302,8 +303,9 @@ class Interface(PrintError):
raise GracefulDisconnect(e) # probably 'unsupported protocol version'
if exit_early:
return
self.print_error(ver, self.host)
self.print_error("connection established. version: {}".format(ver))
await session.subscribe('blockchain.headers.subscribe', [], header_queue)
async with self.group as group:
await group.spawn(self.ping())
await group.spawn(self.run_fetch_blocks(header_queue))
@ -329,25 +331,25 @@ class Interface(PrintError):
while True:
self.network.notify('updated')
item = await header_queue.get()
item = item[0]
height = item['height']
item = blockchain.deserialize_header(bfh(item['hex']), item['height'])
self.tip_header = item
raw_header = item[0]
height = raw_header['height']
header = blockchain.deserialize_header(bfh(raw_header['hex']), height)
self.tip_header = header
self.tip = height
if self.tip < constants.net.max_checkpoint():
raise GracefulDisconnect('server tip below max checkpoint')
if not self.ready.done():
self.mark_ready()
async with self.network.bhi_lock:
if self.blockchain.height() < item['block_height']-1:
if self.blockchain.height() < header['block_height']-1:
_, height = await self.sync_until(height, None)
if self.blockchain.height() >= height and self.blockchain.check_header(item):
if self.blockchain.height() >= height and self.blockchain.check_header(header):
# another interface amended the blockchain
self.print_error("skipping header", height)
continue
if self.tip < height:
height = self.tip
_, height = await self.step(height, item)
_, height = await self.step(height, header)
async def sync_until(self, height, next_height=None):
if next_height is None:
@ -355,7 +357,6 @@ class Interface(PrintError):
last = None
while last is None or height < next_height:
if next_height > height + 10:
self.print_error("requesting chunk from height {}".format(height))
could_connect, num_headers = await self.request_chunk(height, next_height)
if not could_connect:
if height <= constants.net.max_checkpoint():