Bitmessage/PyBitmessage-2024-12-02
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Migrate antiIntersectionDelay to asyncore

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- implemented by ignoring getdata during the delay rather than sleeping
as it was in the threaded model
- it can happen that a valid getdata request is received during the
delay. A node should be implemented in a way that retries to download,
that may not be the case with older PyBitmessage versions or other
implementations
This commit is contained in:
Peter Šurda 2017-07-05 09:27:52 +02:00
parent fc19e4119a
commit fe0664640e
Signed by: PeterSurda
GPG Key ID: 0C5F50C0B5F37D87
3 changed files with 9 additions and 15 deletions
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14
src/network/bmproto.py
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@ -234,17 +234,11 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
def bm_command_getdata(self):
items = self.decode_payload_content("L32s")
# if time.time() < self.skipUntil:
# print "skipping getdata"
# return True
# skip?
if time.time() < self.skipUntil:
return True
for i in items:
#print "received getdata request for item %s" % (hexlify(i))
#logger.debug('received getdata request for item:' + hexlify(i))
#if i in ObjUploadQueue.streamElems(1):
if False:
self.antiIntersectionDelay()
else:
self.receiveQueue.put(("object", i))
self.receiveQueue.put(("object", i))
return True
def bm_command_inv(self):

2
src/network/receivequeuethread.py
View File

@ -54,7 +54,7 @@ class ReceiveQueueThread(threading.Thread, StoppableThread):
connection.writeQueue.put(protocol.CreatePacket('object', Inventory()[objHash].payload))
except KeyError:
connection.antiIntersectionDelay()
logger.warning('%s asked for an object with a getdata which is not in either our memory inventory or our SQL inventory. We probably cleaned it out after advertising it but before they got around to asking for it.' % (connection.destination,))
logger.info('%s asked for an object we don\'t have.', connection.destination)
def command_biginv(self, connection, dummy):
def sendChunk():

8
src/network/tcp.py
View File

@ -29,7 +29,7 @@ from network.tls import TLSDispatcher
import addresses
from bmconfigparser import BMConfigParser
from queues import objectProcessorQueue, portCheckerQueue, UISignalQueue
from queues import invQueue, objectProcessorQueue, portCheckerQueue, UISignalQueue
import shared
import state
import protocol
@ -77,7 +77,7 @@ class TCPConnection(BMProto, TLSDispatcher):
def antiIntersectionDelay(self, initial = False):
# estimated time for a small object to propagate across the whole network
delay = math.ceil(math.log(max(len(knownnodes.knownNodes[x]) for x in knownnodes.knownNodes) + 2, 20)) * (0.2 + UploadQueue.queueCount/2)
delay = math.ceil(math.log(max(len(knownnodes.knownNodes[x]) for x in knownnodes.knownNodes) + 2, 20)) * (0.2 + invQueue.queueCount/2.0)
# take the stream with maximum amount of nodes
# +2 is to avoid problems with log(0) and log(1)
# 20 is avg connected nodes count
@ -86,9 +86,9 @@ class TCPConnection(BMProto, TLSDispatcher):
if initial:
self.skipUntil = self.connectedAt + delay
if self.skipUntil > time.time():
logger.debug("Skipping processing for %.2fs", self.skipUntil - time.time())
logger.debug("Initial skipping processing getdata for %.2fs", self.skipUntil - time.time())
else:
logger.debug("Skipping processing due to missing object for %.2fs", self.skipUntil - time.time())
logger.debug("Skipping processing getdata due to missing object for %.2fs", self.skipUntil - time.time())
self.skipUntil = time.time() + delay
def set_connection_fully_established(self):