Package rosgraph :: Package impl :: Module graph :: Class Graph

Class Graph

object --+
         |
        Graph

Utility class for polling ROS statistics from running ROS graph. Not multi-thread-safe

Instance Methods

__init__(self, node_ns='/', topic_ns='/')
x.__init__(...) initializes x; see help(type(x)) for signature source code

set_master_stale(self, stale_secs)

source code

set_node_stale(self, stale_secs)

source code

bad_update(self)
Update loop for nodes with bad connectivity.

source code

update(self)
Update all the stats.

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, node_ns=`'/'`, topic_ns=`'/'`)
(Constructor)

source code

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

Overrides: object.__init__: (inherited documentation)

set_master_stale(self, stale_secs)

source code

Parameters:

stale_secs (double) - seconds that data is considered fresh

set_node_stale(self, stale_secs)

source code

Parameters:

stale_secs (double) - seconds that data is considered fresh

bad_update(self)

source code

Update loop for nodes with bad connectivity. We box them separately so that we can maintain the good performance of the normal update loop. Once a node is on the bad list it stays there.

update(self)

source code

Update all the stats. This method may take awhile to complete as it will communicate with all nodes + master.

Class Graph

__init__(self, node_ns='/', topic_ns='/') (Constructor)

set_master_stale(self, stale_secs)

set_node_stale(self, stale_secs)

bad_update(self)

update(self)

init(self, node_ns=`'/'`, topic_ns=`'/'`)
(Constructor)