def _createFuture(self):
"""
Return (CancellableFuture): a future that can be used to manage a move
"""
f = CancellableFuture()
f._moving_lock = threading.Lock() # taken while moving
f._must_stop = threading.Event() # cancel of the current future requested
f._was_stopped = False # if cancel was successful
f.task_canceller = self._cancelCurrentMove
return f
def _createFuture(self):
"""
Return (CancellableFuture): a future that can be used to manage a move
"""
f = CancellableFuture()
f._moving_lock = threading.Lock() # taken while moving
f._must_stop = threading.Event() # cancel of the current future requested
f._was_stopped = False # if cancel was successful
f.task_canceller = self._cancelCurrentMove
return f
def _createMoveFuture(self, ref=False):
"""
ref: if true, will use a different canceller
Return (CancellableFuture): a future that can be used to manage a move
"""
f = CancellableFuture()
f._moving_lock = threading.Lock() # taken while moving
f._must_stop = threading.Event(
) # cancel of the current future requested
f._was_stopped = False # if cancel was successful
if not ref:
f.task_canceller = self._cancelCurrentMove
else:
f.task_canceller = self._cancelReference
return f
def turnOnLight(bl, ccd):
"""
Turn on a light and wait until it detects a signal change on the ccd
bl (Light): the light, which should initially be turned off.
ccd (DigitalCamera): detector to use to check for the signal
returns (CancellableFuture): a future that will finish when a significant
signal increase is detected. Can also be used to stop the procedure.
"""
f = CancellableFuture()
f.task_canceller = _cancelTurnOnLight
f._task_state = RUNNING
f._task_lock = threading.Lock()
f._was_stopped = False # if cancel was successful
# Run in separate thread
executeAsyncTask(f, _doTurnOnLight, args=(f, bl, ccd))
return f
def turnOnLight(bl, ccd):
"""
Turn on a light and wait until it detects a signal change on the ccd
bl (Light): the light, which should initially be turned off.
ccd (DigitalCamera): detector to use to check for the signal
returns (CancellableFuture): a future that will finish when a significant
signal increase is detected. Can also be used to stop the procedure.
"""
f = CancellableFuture()
f.task_canceller = _cancelTurnOnLight
f._task_state = RUNNING
f._task_lock = threading.Lock()
f._was_stopped = False # if cancel was successful
# Run in separate thread
executeAsyncTask(f, _doTurnOnLight, args=(f, bl, ccd))
return f
