70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
"""
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`UploadThread` class definition
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"""
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import time
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import helper_random
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import protocol
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from inventory import Inventory
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from network.connectionpool import BMConnectionPool
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from network.dandelion import Dandelion
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from randomtrackingdict import RandomTrackingDict
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from threads import StoppableThread
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class UploadThread(StoppableThread):
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"""
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This is a thread that uploads the objects that the peers requested from me
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"""
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maxBufSize = 2097152 # 2MB
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name = "Uploader"
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def run(self):
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while not self._stopped:
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uploaded = 0
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# Choose uploading peers randomly
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connections = BMConnectionPool().establishedConnections()
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helper_random.randomshuffle(connections)
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for i in connections:
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now = time.time()
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# avoid unnecessary delay
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if i.skipUntil >= now:
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continue
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if len(i.write_buf) > self.maxBufSize:
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continue
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try:
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request = i.pendingUpload.randomKeys(
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RandomTrackingDict.maxPending)
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except KeyError:
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continue
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payload = bytearray()
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chunk_count = 0
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for chunk in request:
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del i.pendingUpload[chunk]
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if Dandelion().hasHash(chunk) and \
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i != Dandelion().objectChildStem(chunk):
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i.antiIntersectionDelay()
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self.logger.info(
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'%s asked for a stem object we didn\'t offer to it.',
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i.destination)
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break
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try:
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payload.extend(protocol.CreatePacket(
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'object', Inventory()[chunk].payload))
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chunk_count += 1
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except KeyError:
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i.antiIntersectionDelay()
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self.logger.info(
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'%s asked for an object we don\'t have.',
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i.destination)
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break
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if not chunk_count:
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continue
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i.append_write_buf(payload)
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self.logger.debug(
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'%s:%i Uploading %i objects',
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i.destination.host, i.destination.port, chunk_count)
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uploaded += chunk_count
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if not uploaded:
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self.stop.wait(1)
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