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Package roshlaunch :: Module parent :: Class ROSLaunchParent
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Class ROSLaunchParent

source code

object --+
         |
        ROSLaunchParent

ROSLaunchParent represents the main 'parent' roslaunch process. It is responsible for loading the launch files, assigning machines, and then starting up any remote processes. The __main__ method delegates most of runtime to ROSLaunchParent.

This must be called from the Python Main thread due to signal registration.

Instance Methods
 
__init__(self, run_id, roslaunch_files, is_core=False, port=None, local_only=False, process_listeners=None, verbose=False, force_screen=False, pm=None)
x.__init__(...) initializes x; see help(type(x)) for signature		 source code
 
start(self, auto_terminate=True)
Run the parent roslaunch.		 source code
 
spin_once(self)
Run the parent roslaunch event loop once		 source code
 
spin(self)
Run the parent roslaunch until exit		 source code
 
shutdown(self)
Stop the parent roslaunch.		 source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties

Inherited from object: __class__

Method Details

__init__(self, run_id, roslaunch_files, is_core=False, port=None, local_only=False, process_listeners=None, verbose=False, force_screen=False, pm=None)
(Constructor)

source code 

x.__init__(...) initializes x; see help(type(x)) for signature

Parameters:
  • run_id (str) - UUID of roslaunch session
  • roslaunch_files ([str]) - list of launch configuration files to load
  • is_core (bool), bool - if True, this launch is a roscore instance. This affects the error behavior if a master is already running (i.e. it fails).
  • process_listeners ([roslaunch.pmon.ProcessListener]) - (optional) list of process listeners to register with process monitor once launch is running
  • port (int) - (optional) override master port number from what is specified in the master URI.
  • verbose (boolean) - (optional) print verbose output
  • force_screen (boolean) - (optional) force output of all nodes to screen
  • pm (roslaunch.pmon.ProcessMonitor @throws RLException) - Specify process monitor for parent to use
Overrides: object.__init__

start(self, auto_terminate=True)

source code 

Run the parent roslaunch.

Parameters:
  • auto_terminate - stop process monitor once there are no more processes to monitor (default True). This defaults to True, which is the command-line behavior of roslaunch. Scripts may wish to set this to False if they wish to keep the roslauch infrastructure up regardless of processes being monitored.

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