lbry-sdk/lbry/stream/background_downloader.py
2023-02-03 09:47:39 -05:00

31 lines
1,009 B
Python

import asyncio
import logging
from lbry.stream.downloader import StreamDownloader
log = logging.getLogger(__name__)
class BackgroundDownloader:
def __init__(self, conf, storage, blob_manager, dht_node=None):
self.storage = storage
self.blob_manager = blob_manager
self.node = dht_node
self.conf = conf
async def download_blobs(self, sd_hash):
downloader = StreamDownloader(asyncio.get_running_loop(), self.conf, self.blob_manager, sd_hash)
try:
await downloader.start(self.node, save_stream=False)
for blob_info in downloader.descriptor.blobs[:-1]:
await downloader.download_stream_blob(blob_info)
except ValueError:
return
except asyncio.CancelledError:
log.debug("Cancelled background downloader")
raise
except Exception:
log.error("Unexpected download error on background downloader")
finally:
downloader.stop()