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Added announce handler for faster initial link establishment.

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This commit is contained in:
Mark Qvist 2021-08-28 15:56:37 +02:00
parent 1e8ef437b9
commit 1ac9c3ad72
1 changed files with 22 additions and 0 deletions
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22
LXMF/LXMF.py
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@ -463,10 +463,28 @@ class LXMessage:
return None
class LXMFDeliveryAnnounceHandler:
def __init__(self, lxmrouter):
self.aspect_filter = APP_NAME+".delivery"
self.lxmrouter = lxmrouter
def received_announce(self, destination_hash, announced_identity, app_data):
for lxmessage in self.lxmrouter.pending_outbound:
if destination_hash == lxmessage.destination_hash:
if lxmessage.method == LXMessage.DIRECT:
lxmessage.next_delivery_attempt = time.time()
while self.lxmrouter.processing_outbound:
time.sleep(0.1)
self.lxmrouter.process_outbound()
class LXMRouter:
MAX_DELIVERY_ATTEMPTS = 3
PROCESSING_INTERVAL = 5
DELIVERY_RETRY_WAIT = 15
PATH_REQUEST_WAIT = 5
LINK_MAX_INACTIVITY = 10*60
def __init__(self):
@ -483,6 +501,8 @@ class LXMRouter:
self.lxmf_query_destination = RNS.Destination(None, RNS.Destination.IN, RNS.Destination.PLAIN, APP_NAME, "query")
self.propagation_destination = RNS.Destination(self.identity, RNS.Destination.IN, RNS.Destination.SINGLE, APP_NAME, "propagation")
RNS.Transport.register_announce_handler(LXMFDeliveryAnnounceHandler(self))
self.__delivery_callback = None
job_thread = threading.Thread(target=self.jobloop)
@ -680,6 +700,7 @@ class LXMRouter:
if not hasattr(lxmessage, "next_delivery_attempt") or time.time() > lxmessage.next_delivery_attempt:
lxmessage.delivery_attempts += 1
lxmessage.next_delivery_attempt = time.time() + LXMRouter.DELIVERY_RETRY_WAIT
if lxmessage.delivery_attempts < LXMRouter.MAX_DELIVERY_ATTEMPTS:
if RNS.Transport.has_path(lxmessage.get_destination().hash):
RNS.log("Establishing link to "+RNS.prettyhexrep(lxmessage.get_destination().hash)+" for delivery attempt "+str(lxmessage.delivery_attempts)+" to "+RNS.prettyhexrep(lxmessage.get_destination().hash), RNS.LOG_DEBUG)
@ -689,6 +710,7 @@ class LXMRouter:
else:
RNS.log("No path known for delivery attempt "+str(lxmessage.delivery_attempts)+" to "+RNS.prettyhexrep(lxmessage.get_destination().hash)+". Requesting path...", RNS.LOG_DEBUG)
RNS.Transport.request_path(lxmessage.get_destination().hash)
lxmessage.next_delivery_attempt = time.time() + LXMRouter.PATH_REQUEST_WAIT
else:
RNS.log("Max delivery attempts reached for direct "+str(lxmessage)+" to "+RNS.prettyhexrep(lxmessage.get_destination().hash), RNS.LOG_DEBUG)
self.fail_message(lxmessage)