def _do_sync(self, address, posA, posB, r0, t0A, t0B, r1, t1A, t1B):
# find or create clock pair
k = (r0, r1)
pairing = self.clock_pairs.get(k)
if pairing is None:
self.clock_pairs[k] = pairing = clocksync.ClockPairing(r0, r1)
# propagation delays, in clock units
delay0A = geodesy.ecef_distance(
posA, r0.position) * r0.clock.freq / constants.Cair
delay0B = geodesy.ecef_distance(
posB, r0.position) * r0.clock.freq / constants.Cair
delay1A = geodesy.ecef_distance(
posA, r1.position) * r1.clock.freq / constants.Cair
delay1B = geodesy.ecef_distance(
posB, r1.position) * r1.clock.freq / constants.Cair
# compute intervals, adjusted for transmitter motion
i0 = (t0B - delay0B) - (t0A - delay0A)
i1 = (t1B - delay1B) - (t1A - delay1A)
if not pairing.is_new(t0B - delay0B):
return True # timestamp is in the past or duplicated, don't use this
# do the update
return pairing.update(address, t0B - delay0B, t1B - delay1B, i0, i1)
def _do_sync(self, address, now, r0, td0B, i0, r1, td1B, i1):
# find or create clock pair
k = (r0, r1)
pairing = self.clock_pairs.get(k)
if pairing is None:
distance = r0.distance[r1]
if distance < 1e3:
return False
if (r0.sync_peers + r1.sync_peers > 1.5 * config.MAX_PEERS
and r0.sync_peers > 10 and r1.sync_peers > 10
and distance > config.MAX_PEERS_MIN_DISTANCE):
return False
r0.sync_peers += 1
r1.sync_peers += 1
self.clock_pairs[k] = pairing = clocksync.ClockPairing(r0, r1)
if pairing.n > 15 and now < pairing.updated + 0.5:
return False
if not pairing.is_new(td0B):
return True # timestamp is in the past or duplicated, don't use this
# do the update
return pairing.update(address, td0B, td1B, i0, i1, now)
def _do_sync(self, address, now, r0, td0B, i0, r1, td1B, i1):
# find or create clock pair
k = (r0, r1)
pairing = self.clock_pairs.get(k)
rejectPairing = False
distance = r0.distance[r1]
if r0.bad_syncs > 1 or r1.bad_syncs > 1:
if r0.sync_peers > 0.5 * config.MIN_PEERS and 0.5 * r1.sync_peers > config.MIN_PEERS:
rejectPairing = True
if r0.sync_peers > config.MIN_PEERS and r1.sync_peers > config.MIN_PEERS and distance > config.MAX_PEERS_MIN_DISTANCE:
if r0.sync_peers > config.MAX_PEERS or r1.sync_peers > config.MAX_PEERS:
rejectPairing = True
if pairing is None:
if rejectPairing:
return False
r0.sync_peers += 1
r1.sync_peers += 1
self.clock_pairs[k] = pairing = clocksync.ClockPairing(r0, r1)
if rejectPairing and r0.sync_peers > 1.25 * config.MIN_PEERS and r1.sync_peers > 1.25 * config.MIN_PEERS:
k[0].sync_peers -= 1
k[1].sync_peers -= 1
del self.clock_pairs[k]
if pairing.n > 20 and now < pairing.updated + 0.8:
return False
if not pairing.is_new(td0B):
return True # timestamp is in the past or duplicated, don't use this
# do the update
return pairing.update(address, td0B, td1B, i0, i1, now)