def _signal_handler(self, *args, **kwargs):
"""
Shuts down the Logger
"""
print("Shutting Down")
self.running = False
RosThread._signal_handler(*args, **kwargs)
TopicMonitor._signal_handler(*args, **kwargs)
print("Bye")
def __init__(self):
threading.Thread.__init__(self)
self.log_cache = []
self.data_file = open(LOG_LOCATION, "a")
self.time_last_written = 0
# Setting up threading locks
self.log_cache_lock = threading.Lock()
self.write_lock = threading.Lock()
self.time_last_written_lock = threading.Lock()
signal.signal(signal.SIGTERM, self._signal_handler)
signal.signal(signal.SIGINT, self._signal_handler)
topic_name = "/%s/command/roslog" % socket.gethostname()
rospy.Subscriber(topic_name, std_msgs.msg.String, self._ros_command)
if WRITE_MAXIMUM_INTERVAL > 0:
self.running = True
self.start()
TopicMonitor.add_callback(self.new_topic)
import time
import rospy
import std_msgs.msg
"""
This is an application used as a sample and for debugging. This
will subscribe to all topic and dump message data to stdout.
This application may be executed from the shell with the command 'roslisten'
"""
def print_data(topic, datatype, data, timestamp):
"""
Callback occuring from rospy.subscribe which occurs in RosThread.
"""
print("Topic: %s data: %s" % (topic, data.data))
def new_topic(topic, datatype):
"""
Callback fired from TopicMontior mainloop.
"""
print("Topic %s has been identified with datatype %s" % (topic, datatype))
# We dont log rosout because they are Log objects not Data objects
if topic.find("/rosout") == -1:
RosThread.subscribe(topic, datatype, print_data)
if __name__ == "__main__":
TopicMonitor.add_callback(new_topic)
while 1:
pass
def _signal_handler(*args, **kwargs):
RosThread._signal_handler(*args, **kwargs)
TopicMonitor._signal_handler(*args, **kwargs)
sys.exit(0)
