def _streamer(self):
# start the stream
while True:
current_time = datetime.utcnow()
if current_time > self._latest_block_time + timedelta(
seconds=(BLOCK_TIME_SECS * 10)):
next_block = self._latest_block + 1
block = self._fetch_block(next_block)
self._add_block_to_cache(next_block, block[1])
SystemStatus.set_sync_status(self._latest_block,
self._latest_block_time,
self.is_behind_schedule())
if (self._latest_block_time +
timedelta(seconds=(BLOCK_TIME_SECS * 20))) < current_time:
# catchup if behind
self._fetch_dynamic_global_props()
self._fetch_multiple_blocks((self._latest_block + 1),
(self._hive_head_block))
time.sleep(0.3)
def _feeder(self):
block_to_push = self._start_block
while True:
while block_to_push not in self._cache:
time.sleep(0.1)
# check before pushing
block = self._cache[block_to_push]
if self._is_valid_block(block_to_push, block):
self._prev_hash = block['block_id']
else:
print("Invalid block detected.")
os._exit(1) # TODO: replace with standby
BlockProcessor.process_block(block_to_push,
self._cache[block_to_push])
self._latest_block = block_to_push
self._latest_block_time = datetime.strptime(
block['timestamp'], UTC_TIMESTAMP_FORMAT)
SystemStatus.set_sync_status(self._latest_block,
self._latest_block_time,
self.is_behind_schedule())
self._prune_block(block_to_push)
block_to_push += 1