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More refactoring in LBRYStreamProducer

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This commit is contained in:
Alex Liebowitz 2016-10-01 23:03:04 -04:00
parent f245822814
commit a6fcd5d1f2
1 changed files with 10 additions and 8 deletions
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16
lbrynet/lbrynet_daemon/DaemonServer.py
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@ -246,9 +246,9 @@ class EncryptedFileStreamer(object):
# How long to wait between sending blocks (needed because some # How long to wait between sending blocks (needed because some
# video players freeze up if you try to send data too fast) # video players freeze up if you try to send data too fast)
stream_interval = 0.02 stream_interval = 0.01
# How long to wait before checking again # How long to wait before checking if new data has been appended to the file
new_data_check_interval = 0.25 new_data_check_interval = 0.25
@ -287,13 +287,15 @@ class EncryptedFileStreamer(object):
if not self._running: if not self._running:
return return
# Clear the file's EOF indicator by seeking to current position
self._file.seek(self._file.tell())
data = self._file.read(self.bufferSize) data = self._file.read(self.bufferSize)
if data: if data:
self._request.write(data) self._request.write(data)
if self._running: # .write() can trigger a pause
self._deferred.addCallback(lambda _: task.deferLater(reactor, self.stream_interval, self._check_for_new_data)) self._deferred.addCallback(lambda _: task.deferLater(reactor, self.stream_interval, self._check_for_new_data))
else: else:
# We've written all the bytes currently in the file, but we may
# still be downloading, so check file status to see if we're done.
self._deferred.addCallback(lambda _: self._file_manager.get_lbry_file_status(self._stream)) self._deferred.addCallback(lambda _: self._file_manager.get_lbry_file_status(self._stream))
self._deferred.addCallback(_recurse_or_stop) self._deferred.addCallback(_recurse_or_stop)
@ -310,8 +312,8 @@ class EncryptedFileStreamer(object):
self._deferred.addErrback(lambda err: err.trap(defer.CancelledError)) self._deferred.addErrback(lambda err: err.trap(defer.CancelledError))
self._deferred.addErrback(lambda err: err.trap(error.ConnectionDone)) self._deferred.addErrback(lambda err: err.trap(error.ConnectionDone))
self._deferred.cancel() self._deferred.cancel()
self._request.finish()
self._request.unregisterProducer() self._request.unregisterProducer()
self._request.finish()
class HostedEncryptedFile(resource.Resource): class HostedEncryptedFile(resource.Resource):
@ -325,8 +327,8 @@ class HostedEncryptedFile(resource.Resource):
producer = EncryptedFileStreamer(request, path, stream, self._api.lbry_file_manager) producer = EncryptedFileStreamer(request, path, stream, self._api.lbry_file_manager)
request.registerProducer(producer, streaming=True) request.registerProducer(producer, streaming=True)
request.notifyFinish().addCallback(lambda _: producer.stopProducing()) d = request.notifyFinish()
request.notifyFinish().addErrback(self._responseFailed, d) d.addErrback(self._responseFailed, d)
return d return d
def render_GET(self, request): def render_GET(self, request):