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Added Link establishment rate calculation

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This commit is contained in:
Mark Qvist 2023-02-17 09:54:18 +01:00
parent f21b93403a
commit b82ecf047a
1 changed files with 17 additions and 6 deletions
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21
RNS/Link.py
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@ -277,6 +277,10 @@ class Link:
self.activated_at = time.time() self.activated_at = time.time()
RNS.Transport.activate_link(self) RNS.Transport.activate_link(self)
RNS.log("Link "+str(self)+" established with "+str(self.destination)+", RTT is "+str(round(self.rtt, 3))+"s", RNS.LOG_VERBOSE) RNS.log("Link "+str(self)+" established with "+str(self.destination)+", RTT is "+str(round(self.rtt, 3))+"s", RNS.LOG_VERBOSE)
if self.rtt != None and self.establishment_cost != None and self.rtt > 0 and self.establishment_cost > 0:
self.establishment_rate = self.establishment_cost/self.rtt
rtt_data = umsgpack.packb(self.rtt) rtt_data = umsgpack.packb(self.rtt)
rtt_packet = RNS.Packet(self, rtt_data, context=RNS.Packet.LRRTT) rtt_packet = RNS.Packet(self, rtt_data, context=RNS.Packet.LRRTT)
rtt_packet.send() rtt_packet.send()
@ -363,11 +367,6 @@ class Link:
def rtt_packet(self, packet): def rtt_packet(self, packet):
try: try:
# TODO: This is crude, we should use the delta
# to model a more representative per-bit round
# trip time, and use that to set a sensible RTT
# expectancy for the link. This will have to do
# for now though.
measured_rtt = time.time() - self.request_time measured_rtt = time.time() - self.request_time
plaintext = self.decrypt(packet.data) plaintext = self.decrypt(packet.data)
rtt = umsgpack.unpackb(plaintext) rtt = umsgpack.unpackb(plaintext)
@ -375,13 +374,25 @@ class Link:
self.status = Link.ACTIVE self.status = Link.ACTIVE
self.activated_at = time.time() self.activated_at = time.time()
if self.rtt != None and self.establishment_cost != None and self.rtt > 0 and self.establishment_cost > 0:
self.establishment_rate = self.establishment_cost/self.rtt
if self.owner.callbacks.link_established != None: if self.owner.callbacks.link_established != None:
self.owner.callbacks.link_established(self) self.owner.callbacks.link_established(self)
except Exception as e: except Exception as e:
RNS.log("Error occurred while processing RTT packet, tearing down link. The contained exception was: "+str(e), RNS.LOG_ERROR) RNS.log("Error occurred while processing RTT packet, tearing down link. The contained exception was: "+str(e), RNS.LOG_ERROR)
self.teardown() self.teardown()
def get_establishment_rate(self):
"""
:returns: The data transfer rate at which the link establishment procedure ocurred, in bits per second.
"""
if self.establishment_rate != None:
return self.establishment_rate*8
else:
return None
def get_salt(self): def get_salt(self):
return self.link_id return self.link_id