openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#!/usr/bin/env python2
import os
import sys
import panda.tests.safety.libpandasafety_py as libpandasafety_py
from panda.tests.safety_replay.helpers import is_steering_msg, get_steer_torque, \
set_desired_torque_last, package_can_msg, \
init_segment, safety_modes
from tools.lib.logreader import LogReader
# replay a drive to check for safety violations
def replay_drive(lr, safety_mode, param):
safety = libpandasafety_py.libpandasafety
err = safety.safety_set_mode(safety_mode, param)
assert err == 0, "invalid safety mode: %d" % safety_mode
if "SEGMENT" in os.environ:
init_segment(safety, lr, mode)
tx_tot, tx_blocked, tx_controls, tx_controls_blocked = 0, 0, 0, 0
blocked_addrs = set()
start_t = None
for msg in lr:
if start_t is None:
start_t = msg.logMonoTime
safety.set_timer(((msg.logMonoTime / 1000)) % 0xFFFFFFFF)
if msg.which() == 'sendcan':
for canmsg in msg.sendcan:
to_send = package_can_msg(canmsg)
sent = safety.safety_tx_hook(to_send)
if not sent:
tx_blocked += 1
tx_controls_blocked += safety.get_controls_allowed()
blocked_addrs.add(canmsg.address)
if "DEBUG" in os.environ:
print "blocked %d at %f" % (canmsg.address, (msg.logMonoTime - start_t)/(1e9))
tx_controls += safety.get_controls_allowed()
tx_tot += 1
elif msg.which() == 'can':
for canmsg in msg.can:
# ignore msgs we sent
if canmsg.src >= 128:
continue
to_push = package_can_msg(canmsg)
safety.safety_rx_hook(to_push)
print "total openpilot msgs:", tx_tot
print "total msgs with controls allowed:", tx_controls
print "blocked msgs:", tx_blocked
print "blocked with controls allowed:", tx_controls_blocked
print "blocked addrs:", blocked_addrs
return tx_controls_blocked == 0
if __name__ == "__main__":
if sys.argv[2] in safety_modes:
mode = safety_modes[sys.argv[2]]
else:
mode = int(sys.argv[2])
param = 0 if len(sys.argv) < 4 else int(sys.argv[3])
lr = LogReader(sys.argv[1])
print "replaying drive %s with safety mode %d and param %d" % (sys.argv[1], mode, param)
replay_drive(lr, mode, param)