Package qubx :: Module task :: Class Robot_Hold

Class Robot_Hold

object --+
         |
        Robot_Hold

Context manager, for use in a Task thread, which pauses a Robot (or Robots) thread while it is entered.

>>> with robot.hold_from_task(task):
...     read_something_volatile()

Used in combination with throw_in, the exception is sometimes at inconveniently times in __enter__, __call__, or __exit__. This is a possible source of freeze-ups.

In Linux, the Task thread can work with the GUI while the main thread is paused, but this technique is not compatible with the Windows thread model. Not sure about Mac OS X.

Instance Methods

[hide private]

__init__(self, robot, task)
x.__init__(...) initializes x; see help(type(x)) for signature

source code

__enter__(self)

source code

__call__(self)

source code

__exit__(self, type, value, tback)

source code

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