async def _setup_for_next_gap(self) -> None:
gap_start, gap_end = self._get_next_gap()
fill_start = BlockNumber(max(
gap_start,
gap_end - self._max_backfill_block_bodies_at_once,
))
start_num = BlockNumber(fill_start - 1)
_starting_tip = await self._db.coro_get_canonical_block_header_by_number(start_num)
if self._pauser.is_paused:
# If the syncer was paused while we were busy setting it up throw the current setup
# away. A new setup will be performed as soon as `resume()` was called again.
raise ValidationError("Syncer was paused by the user")
async def _get_launch_header() -> BlockHeaderAPI:
return _starting_tip
self.logger.debug("Starting to sync missing blocks from #%s to #%s", fill_start, gap_end)
self._body_syncer = FastChainBodySyncer(
self._chain,
self._db,
self._peer_pool,
DatabaseBlockRangeHeaderSyncer(self._db, (fill_start, gap_end,)),
launch_header_fn=_get_launch_header,
should_skip_header_fn=body_for_header_exists(self._db, self._chain)
)
self._body_syncer.logger = self.logger
async def _setup_for_next_gap(self) -> None:
gap_start, gap_end = self._get_next_gap()
start_num = BlockNumber(gap_start - 1)
_starting_tip = await self._db.coro_get_canonical_block_header_by_number(start_num)
async def _get_launch_header() -> BlockHeaderAPI:
return _starting_tip
self.logger.debug("Starting to sync missing blocks from #%s to #%s", gap_start, gap_end)
self._body_syncer = FastChainBodySyncer(
self._chain,
self._db,
self._peer_pool,
DatabaseBlockRangeHeaderSyncer(self._db, (gap_start, gap_end,)),
launch_header_fn=_get_launch_header,
should_skip_header_fn=body_for_header_exists(self._db, self._chain)
)