electrum

Electrum Bitcoin wallet
git clone https://git.parazyd.org/electrum
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commit 200b012e575954331e9f0280cd9c63715817ca73
parent c91fe27e7da79eccaad4db7638ec1e987def3428
Author: SomberNight <somber.night@protonmail.com>
Date:   Mon, 24 Sep 2018 17:55:58 +0200

lnchannelverifier: some clean-up

Diffstat:
Melectrum/lnchannelverifier.py | 31++++++++++++++++---------------
1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/electrum/lnchannelverifier.py b/electrum/lnchannelverifier.py @@ -25,11 +25,13 @@ import asyncio import threading + from aiorpcx import TaskGroup from . import lnbase from . import bitcoin from . import ecc +from . import constants from .util import ThreadJob, bh2u, bfh from .lnutil import invert_short_channel_id, funding_output_script_from_keys from .verifier import verify_tx_is_in_block, MerkleVerificationFailure @@ -50,6 +52,7 @@ class LNChannelVerifier(ThreadJob): self.unverified_channel_info = {} # short_channel_id -> channel_info + # TODO make async; and rm self.lock completely def add_new_channel_info(self, channel_info): short_channel_id = channel_info.channel_id if short_channel_id in self.unverified_channel_info: @@ -64,18 +67,13 @@ class LNChannelVerifier(ThreadJob): async def main(self): while True: - async with TaskGroup() as tg: - await self.iteration(tg) + async with TaskGroup() as group: + await self.iteration(group) await asyncio.sleep(0.1) - async def iteration(self, tg): - interface = self.network.interface - if not interface: - return - - blockchain = interface.blockchain - if not blockchain: - return + async def iteration(self, group: TaskGroup): + blockchain = self.network.blockchain() + local_height = blockchain.height() with self.lock: unverified_channel_info = list(self.unverified_channel_info) @@ -85,13 +83,14 @@ class LNChannelVerifier(ThreadJob): continue block_height, tx_pos, output_idx = invert_short_channel_id(short_channel_id) # only resolve short_channel_id if headers are available. + if block_height <= 0 or block_height > local_height: + continue header = blockchain.read_header(block_height) if header is None: - index = block_height // 2016 - if index < len(blockchain.checkpoints): - await tg.spawn(self.network.request_chunk(block_height, None, can_return_early=True)) + if block_height < constants.net.max_checkpoint(): + await group.spawn(self.network.request_chunk(block_height, None, can_return_early=True)) continue - await tg.spawn(self.verify_channel(block_height, tx_pos, short_channel_id)) + await group.spawn(self.verify_channel(block_height, tx_pos, short_channel_id)) #self.print_error('requested short_channel_id', bh2u(short_channel_id)) async def verify_channel(self, block_height, tx_pos, short_channel_id): @@ -100,7 +99,9 @@ class LNChannelVerifier(ThreadJob): result = await self.network.get_txid_from_txpos(block_height, tx_pos, True) tx_hash = result['tx_hash'] merkle_branch = result['merkle'] - header = self.network.blockchain().read_header(block_height) + # we need to wait if header sync/reorg is still ongoing, hence lock: + async with self.network.bhi_lock: + header = self.network.blockchain().read_header(block_height) try: verify_tx_is_in_block(tx_hash, merkle_branch, tx_pos, header, block_height) except MerkleVerificationFailure as e: