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Added verbose parameter to SimulationThread to re-enable console output 

for testing purposes.
This commit is contained in:
Chris Davoren 2023-10-21 16:17:10 +10:00
parent 2f5d8d70bc
commit 82a40b5143
3 changed files with 34 additions and 33 deletions
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2
period-test.py
View File

@ -27,7 +27,7 @@ def main():
"23:59:59", "23:59:59",
] ]
SimulationThread.initialize(periods, datetime.time.fromisoformat("07:59"), 60, 4.0) SimulationThread.initialize(periods, datetime.time.fromisoformat("07:59"), 60, 4.0, True)
for test_time in test_times: for test_time in test_times:
test_time_obj = datetime.time.fromisoformat(test_time) test_time_obj = datetime.time.fromisoformat(test_time)

62
simulation/simulation_thread.py
View File

@ -14,11 +14,11 @@ class SimulationThread(threading.Thread):
instance = None instance = None
@classmethod @classmethod
def initialize(cls, periods, start_time=None, run_time=None, time_factor=1.0): def initialize(cls, periods, start_time=None, run_time=None, time_factor=1.0, verbose=False):
""" """
Initializes the singleton Thread with the given values. The given arguments are passed directly to the instance constructor. See the `__init__` method for argument details. Initializes the singleton Thread with the given values. The given arguments are passed directly to the instance constructor. See the `__init__` method for argument details.
""" """
cls.instance = SimulationThread(periods, start_time, run_time, time_factor) cls.instance = SimulationThread(periods, start_time, run_time, time_factor, verbose)
@classmethod @classmethod
def get_instance(cls): def get_instance(cls):
@ -27,7 +27,7 @@ class SimulationThread(threading.Thread):
""" """
return cls.instance return cls.instance
def __init__(self, periods, start_time, run_time, time_factor): def __init__(self, periods, start_time, run_time, time_factor, verbose):
""" """
Creates a simulation with the provided data and settings. Creates a simulation with the provided data and settings.
@ -36,6 +36,7 @@ class SimulationThread(threading.Thread):
start_time (datetime.time): The time at which the simulation should start. start_time (datetime.time): The time at which the simulation should start.
run_time (int): The amount of (real) time the simulation should run for before terminating. If None, run indefinitely or until signal_stop() is called. run_time (int): The amount of (real) time the simulation should run for before terminating. If None, run indefinitely or until signal_stop() is called.
time_factor (float): The time "accelleration" factor at which the simulation should run. A value of 1.0 indicates indentity with real time, and higher values run faster (e.g. 4.0 = four simulated seconds for each real second). time_factor (float): The time "accelleration" factor at which the simulation should run. A value of 1.0 indicates indentity with real time, and higher values run faster (e.g. 4.0 = four simulated seconds for each real second).
verbose (bool): If True, outputs progress information to stdout (for testing purposes only).
""" """
# Parent constructor call (required). Uses parameter daemon=True to ensure thread shutdown when parent program finishes executing # Parent constructor call (required). Uses parameter daemon=True to ensure thread shutdown when parent program finishes executing
# See https://docs.python.org/3/library/threading.html # See https://docs.python.org/3/library/threading.html
@ -47,6 +48,7 @@ class SimulationThread(threading.Thread):
self.start_time = start_time self.start_time = start_time
self.run_time = run_time self.run_time = run_time
self.time_factor = time_factor self.time_factor = time_factor
self.verbose = verbose
# NOT a status variable, instead indicates whether signal_stop() has been called # NOT a status variable, instead indicates whether signal_stop() has been called
self.running = True self.running = True
@ -140,15 +142,14 @@ class SimulationThread(threading.Thread):
self.next_changeover_time = real_start_time + (self.periods[self.current_period_index]["states"][self.current_state_index]["duration"] / self.time_factor) self.next_changeover_time = real_start_time + (self.periods[self.current_period_index]["states"][self.current_state_index]["duration"] / self.time_factor)
# print("Starting with simulation time {}".format(self.simulation_start_datetime.time())) if self.verbose:
# print("Initial state data: {}".format(self.periods[self.current_period_index]["states"][self.current_state_index])) print("Starting with simulation time {}".format(self.simulation_start_datetime.time()))
""" print("Initial state data: {}".format(self.periods[self.current_period_index]["states"][self.current_state_index]))
if self.run_time is None: if self.run_time is None:
print("No simulation time limit.") print("No simulation time limit.")
else: else:
print("Simulation duration (in real second(s)): {}".format(self.run_time)) print("Simulation duration (in real second(s)): {}".format(self.run_time))
""" print("Time compression factor: {}".format(self.time_factor))
# print("Time compression factor: {}".format(self.run_time, self.time_factor))
while (self.run_time is None) or (self.run_time is not None and time.time() < real_start_time + self.run_time): while (self.run_time is None) or (self.run_time is not None and time.time() < real_start_time + self.run_time):
self.mutex.acquire() self.mutex.acquire()
@ -164,39 +165,38 @@ class SimulationThread(threading.Thread):
if now >= self.next_changeover_time: if now >= self.next_changeover_time:
timed_period_index = self._get_period_index(self.current_simulation_datetime.time()) timed_period_index = self._get_period_index(self.current_simulation_datetime.time())
if timed_period_index != self.current_period_index and self.current_state_index == len(self.periods[self.current_period_index]["states"])-1: if timed_period_index != self.current_period_index and self.current_state_index == len(self.periods[self.current_period_index]["states"])-1:
# print() if self.verbose:
# print("{} : Changing PERIOD from {} to {}".format(self.current_simulation_datetime.time(), self.periods[self.current_period_index]["name"], self.periods[timed_period_index]["name"])) print()
# print(" Old state data: {}".format(self.periods[self.current_period_index]["states"][self.current_state_index])) print("{} : Changing PERIOD from {} to {}".format(self.current_simulation_datetime.time(), self.periods[self.current_period_index]["name"], self.periods[timed_period_index]["name"]))
print(" Old state data: {}".format(self.periods[self.current_period_index]["states"][self.current_state_index]))
# Safe to change period # Safe to change period
self.current_period_index = timed_period_index self.current_period_index = timed_period_index
self.current_state_index = 0 self.current_state_index = 0
# print(" New state data: {}".format(self.periods[self.current_period_index]["states"][self.current_state_index])) if self.verbose:
# print(" Next changeover in {} second(s)".format(self.periods[self.current_period_index]["states"][self.current_state_index]["duration"])) print(" New state data: {}".format(self.periods[self.current_period_index]["states"][self.current_state_index]))
print(" Next changeover in {} second(s)".format(self.periods[self.current_period_index]["states"][self.current_state_index]["duration"]))
else: else:
# Current sequence still completing, not safe to change to next period # Current sequence still completing, not safe to change to next period
next_cycle_index = (self.current_state_index + 1) % len(self.periods[self.current_period_index]["states"]) next_cycle_index = (self.current_state_index + 1) % len(self.periods[self.current_period_index]["states"])
# print() if self.verbose:
# print("{} : {} : Changing state from {} to {}".format(self.current_simulation_datetime.time(), self.periods[self.current_period_index]["name"], self.current_state_index, next_cycle_index)) print()
""" print("{} : {} : Changing state from {} to {}".format(self.current_simulation_datetime.time(), self.periods[self.current_period_index]["name"], self.current_state_index, next_cycle_index))
if self.current_period_index != timed_period_index: if self.current_period_index != timed_period_index:
print(" [period change pending]") print(" [period change pending]")
""" print(" Old state data: {}".format(self.periods[self.current_period_index]["states"][self.current_state_index]))
# print(" Old state data: {}".format(self.periods[self.current_period_index]["states"][self.current_state_index])) print(" New state data: {}".format(self.periods[self.current_period_index]["states"][next_cycle_index]))
# print(" New state data: {}".format(self.periods[self.current_period_index]["states"][next_cycle_index])) print(" Next changeover in {} second(s)".format(self.periods[self.current_period_index]["states"][next_cycle_index]["duration"]))
# print(" Next changeover in {} second(s)".format(self.periods[self.current_period_index]["states"][next_cycle_index]["duration"]))
self.current_state_index = next_cycle_index self.current_state_index = next_cycle_index
self.next_changeover_time = self.next_changeover_time + (self.periods[self.current_period_index]["states"][self.current_state_index]["duration"] / self.time_factor) self.next_changeover_time = self.next_changeover_time + (self.periods[self.current_period_index]["states"][self.current_state_index]["duration"] / self.time_factor)
else: else:
pass if self.verbose:
""" print(".", end="")
print(".", end="") sys.stdout.flush()
sys.stdout.flush()
"""
self.mutex.release() self.mutex.release()
time.sleep(1.0 / self.time_factor) time.sleep(1.0 / self.time_factor)

3
trafficlightfrontend/apps.py
View File

@ -6,6 +6,7 @@ from django.conf import settings
from simulation import SimulationThread from simulation import SimulationThread
class TrafficlightfrontendConfig(AppConfig): class TrafficlightfrontendConfig(AppConfig):
default_auto_field = 'django.db.models.BigAutoField' default_auto_field = 'django.db.models.BigAutoField'
name = 'trafficlightfrontend' name = 'trafficlightfrontend'
@ -24,7 +25,7 @@ class TrafficlightfrontendConfig(AppConfig):
periods = json.load(open(os.path.join(settings.BASE_DIR, settings.SIMULATION_DATA_FILE))) periods = json.load(open(os.path.join(settings.BASE_DIR, settings.SIMULATION_DATA_FILE)))
SimulationThread.initialize(periods, start_time=datetime.time.fromisoformat(settings.SIMULATION_START_TIME), time_factor=settings.SIMULATION_TIME_FACTOR) SimulationThread.initialize(periods, start_time=datetime.time.fromisoformat(settings.SIMULATION_START_TIME), time_factor=settings.SIMULATION_TIME_FACTOR, verbose=False)
SimulationThread.get_instance().start() SimulationThread.get_instance().start()
TrafficlightfrontendConfig.initialized = True TrafficlightfrontendConfig.initialized = True