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use utils.safe_start_looping_call and utils.safe_stop_looping_call

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This commit is contained in:
Kay Kurokawa 2017-06-21 12:33:12 -04:00
parent 8398d57024
commit a1292254bb
1 changed files with 6 additions and 15 deletions
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21
lbrynet/daemon/Downloader.py
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@ -6,6 +6,7 @@ from twisted.internet.task import LoopingCall
from lbryschema.fee import Fee
from lbrynet.core.Error import InsufficientFundsError, KeyFeeAboveMaxAllowed, DownloadTimeoutError
from lbrynet.core.utils import safe_start_looping_call, safe_stop_looping_call
from lbrynet.core.StreamDescriptor import download_sd_blob
from lbrynet.file_manager.EncryptedFileDownloader import ManagedEncryptedFileDownloaderFactory
from lbrynet.file_manager.EncryptedFileDownloader import ManagedEncryptedFileDownloader
@ -28,16 +29,6 @@ STREAM_STAGES = [
log = logging.getLogger(__name__)
def safe_start(looping_call):
if not looping_call.running:
looping_call.start(1)
def safe_stop(looping_call):
if looping_call.running:
looping_call.stop()
class GetStream(object):
def __init__(self, sd_identifier, session, exchange_rate_manager,
max_key_fee, data_rate=None, timeout=None,
@ -76,7 +67,7 @@ class GetStream(object):
if stop_condition and not self.data_downloading_deferred.called:
self.data_downloading_deferred.callback(True)
if self.data_downloading_deferred.called:
safe_stop(self.checker)
safe_stop_looping_call(self.checker)
else:
log.info("Downloading stream data (%i seconds)", self.timeout_counter)
@ -89,7 +80,7 @@ class GetStream(object):
if self.timeout_counter >= self.timeout:
if not self.data_downloading_deferred.called:
self.data_downloading_deferred.errback(DownloadTimeoutError(self.file_name))
safe_stop(self.checker)
safe_stop_looping_call(self.checker)
else:
d = self.downloader.status()
d.addCallback(self._check_status)
@ -156,7 +147,7 @@ class GetStream(object):
self.set_status(DOWNLOAD_STOPPED_CODE, name)
log.info("Finished downloading lbry://%s (%s) --> %s", name, self.sd_hash[:6],
self.download_path)
safe_stop(self.checker)
safe_stop_looping_call(self.checker)
status = yield self.downloader.status()
self._check_status(status)
defer.returnValue(self.download_path)
@ -211,13 +202,13 @@ class GetStream(object):
yield self._download(sd_blob, name, key_fee)
self.set_status(DOWNLOAD_RUNNING_CODE, name)
safe_start(self.checker)
safe_start_looping_call(self.checker, 1)
try:
yield self.data_downloading_deferred
except Exception as err:
self.downloader.stop()
safe_stop(self.checker)
safe_stop_looping_call(self.checker)
raise
defer.returnValue((self.downloader, self.finished_deferred))