def action_loop(self):
i = 0
states, values = {}, {}
for element in self._channels:
states[element] = None
#values[element] = None
nap = self._acq_sleep_time
nb_states_per_value = self._nb_states_per_value
# read values to send a first event when starting to acquire
with ActionContext(self):
self.raw_read_value_loop(ret=values)
for acquirable, value in values.items():
acquirable.put_value(value, propagate=2)
while True:
self.read_state_info(ret=states)
if not self.in_acquisition(states):
break
# read value every n times
if not i % nb_states_per_value:
self.read_value_loop(ret=values)
for acquirable, value in values.items():
acquirable.put_value(value)
time.sleep(nap)
i += 1
for slave in self._slaves:
try:
slave.stop_action()
except:
self.warning("Unable to stop slave acquisition %s",
slave.getLogName())
self.debug("Details", exc_info=1)
with ActionContext(self):
self.raw_read_state_info(ret=states)
self.raw_read_value_loop(ret=values)
for acquirable, state_info in states.items():
# first update the element state so that value calculation
# that is done after takes the updated state into account
acquirable.set_state_info(state_info, propagate=0)
if acquirable in values:
value = values[acquirable]
acquirable.put_value(value, propagate=2)
with acquirable:
acquirable.clear_operation()
state_info = acquirable._from_ctrl_state_info(state_info)
acquirable.set_state_info(state_info, propagate=2)
def start_action(self, *args, **kwargs):
"""kwargs['items'] is a dict<moveable, (pos, dial, do_backlash, backlash)
"""
items = kwargs.pop("items")
pool = self.pool
# prepare data structures
self._aborted = False
self._stopped = False
self._motion_sleep_time = kwargs.pop("motion_sleep_time",
pool.motion_loop_sleep_time)
self._nb_states_per_position = \
kwargs.pop("nb_states_per_position",
pool.motion_loop_states_per_position)
self._motion_info = motion_info = {}
for moveable, motion_data in items.items():
it = moveable.instability_time
motion_info[moveable] = PoolMotionItem(moveable,
*motion_data,
instability_time=it)
pool_ctrls = self.get_pool_controller_list()
moveables = self.get_elements()
with ActionContext(self):
self.pre_start_all(pool_ctrls)
self.pre_start_one(moveables, items)
self.start_one(moveables, motion_info)
self.start_all(pool_ctrls, moveables, motion_info)
def action_loop(self):
states, values = {}, {}
for element in self._channels:
states[element] = None
values[element] = None
nap = self._acq_sleep_time
while True:
self.read_value(ret=values)
for acquirable, value in values.items():
acquirable.put_value(value)
if self._stopped or self._aborted:
break
time.sleep(nap)
with ActionContext(self):
self.raw_read_state_info(ret=states)
for acquirable, state_info in states.items():
# first update the element state so that value calculation
# that is done after takes the updated state into account
state_info = acquirable._from_ctrl_state_info(state_info)
acquirable.set_state_info(state_info, propagate=0)
with acquirable:
acquirable.clear_operation()
acquirable.set_state_info(state_info, propagate=2)
def start_action(self, *args, **kwargs):
"""Prepares everything for acquisition and starts it.
:param: config"""
pool = self.pool
# prepare data structures
self._aborted = False
self._stopped = False
self._acq_sleep_time = kwargs.pop("acq_sleep_time",
pool.acq_loop_sleep_time)
self._nb_states_per_value = \
kwargs.pop("nb_states_per_value",
pool.acq_loop_states_per_value)
integ_time = kwargs.get("integ_time")
mon_count = kwargs.get("monitor_count")
if integ_time is None and mon_count is None:
raise Exception("must give integration time or monitor counts")
if integ_time is not None and mon_count is not None:
raise Exception(
"must give either integration time or monitor counts (not both)"
)
items = kwargs.get("items")
if items is None:
items = self.get_elements()
cfg = kwargs['config']
pool_ctrls_dict = dict(cfg['controllers'])
pool_ctrls_dict.pop('__tango__', None)
pool_ctrls = []
for ctrl in pool_ctrls_dict:
if ElementType.ZeroDExpChannel in ctrl.get_ctrl_types():
pool_ctrls.append(ctrl)
# Determine which channels are active
self._channels = channels = {}
for pool_ctrl in pool_ctrls:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = pool_ctrls_dict[pool_ctrl]
main_unit_data = pool_ctrl_data['units']['0']
elements = main_unit_data['channels']
for element, element_info in elements.items():
channel = Channel(element, info=element_info)
channels[element] = channel
with ActionContext(self):
# set the state of all elements to and inform their listeners
for channel in channels:
channel.clear_buffer()
channel.set_state(State.Moving, propagate=2)
def start_action(self, *args, **kwargs):
"""Prepares everything for acquisition and starts it.
:param: config"""
pool = self.pool
self._index = kwargs.get("idx")
# prepare data structures
# TODO: rollback this change when a proper synchronization between
# acquisition actions will be develop.
# Now the meta acquisition action is resettung them to 0.
# self._aborted = False
# self._stopped = False
self._acq_sleep_time = kwargs.pop("acq_sleep_time",
pool.acq_loop_sleep_time)
self._nb_states_per_value = \
kwargs.pop("nb_states_per_value",
pool.acq_loop_states_per_value)
items = kwargs.get("items")
if items is None:
items = self.get_elements()
cfg = kwargs['config']
pool_ctrls_dict = dict(cfg['controllers'])
pool_ctrls_dict.pop('__tango__', None)
pool_ctrls = []
for ctrl in pool_ctrls_dict:
if ElementType.ZeroDExpChannel in ctrl.get_ctrl_types():
pool_ctrls.append(ctrl)
# Determine which channels are active
self._channels = channels = {}
for pool_ctrl in pool_ctrls:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = pool_ctrls_dict[pool_ctrl]
elements = pool_ctrl_data['channels']
for element, element_info in elements.items():
channel = Channel(element, info=element_info)
channels[element] = channel
with ActionContext(self):
# set the state of all elements to and inform their listeners
for channel in channels:
channel.clear_buffer()
channel.set_state(State.Moving, propagate=2)
def action_loop(self):
i = 0
states, values = {}, {}
for element in self._channels:
states[element] = None
values[element] = None
nap = self._acq_sleep_time
nb_states_per_value = self._nb_states_per_value
while True:
self.read_state_info(ret=states)
if not self.in_acquisition(states):
break
# read value every n times
if not i % nb_states_per_value:
self.read_value_loop(ret=values)
for acquirable, value in values.items():
if is_value_error(value):
self.error("Loop read value error for %s" %
acquirable.name)
acquirable.put_value(value)
else:
acquirable.extend_value_buffer(value)
time.sleep(nap)
i += 1
with ActionContext(self):
self.raw_read_state_info(ret=states)
self.raw_read_value_loop(ret=values)
for acquirable, state_info in states.items():
# first update the element state so that value calculation
# that is done after takes the updated state into account
acquirable.set_state_info(state_info, propagate=0)
if acquirable in values:
value = values[acquirable]
if is_value_error(value):
self.error("Loop final read value error for: %s" %
acquirable.name)
acquirable.put_value(value)
else:
acquirable.extend_value_buffer(value, propagate=2)
with acquirable:
acquirable.clear_operation()
state_info = acquirable._from_ctrl_state_info(state_info)
acquirable.set_state_info(state_info, propagate=2)
def action_loop(self):
states, values = {}, {}
for element in self._channels:
states[element] = None
values[element] = None
nap = self._acq_sleep_time
while True:
self.read_state_info(ret=states)
if not self.in_acquisition(states):
break
time.sleep(nap)
for slave in self._slaves:
try:
slave.stop_action()
except:
self.warning("Unable to stop slave acquisition %s",
slave.getLogName())
self.debug("Details", exc_info=1)
with ActionContext(self):
self.raw_read_state_info(ret=states)
self.raw_read_value_loop(ret=values)
for acquirable, state_info in states.items():
# first update the element state so that value calculation
# that is done after takes the updated state into account
acquirable.set_state_info(state_info, propagate=0)
if acquirable in values:
value = values[acquirable]
if is_value_error(value):
self.error("Loop final read value error for: %s" %
acquirable.name)
acquirable.put_value(value)
else:
acquirable.append_value_buffer(value, self.index)
with acquirable:
acquirable.clear_operation()
state_info = acquirable._from_ctrl_state_info(state_info)
acquirable.set_state_info(state_info, propagate=2)
def start_action(self, *args, **kwargs):
'''Start action method. Expects the following kwargs:
- config - dictionary containing measurement group configuration
- synchronization - list of dictionaries containing information about
the expected synchronization
- moveable (optional)- moveable object used as the synchronization
source in the Position domain
- monitor (optional) - counter/timer object used as the synchronization
source in the Monitor domain
'''
cfg = kwargs['config']
synchronization = kwargs.get('synchronization')
moveable = kwargs.get('moveable')
ctrls_config = cfg.get('controllers')
pool_ctrls = ctrls_config.keys()
# Prepare a dictionary with the involved channels
self._channels = channels = {}
for pool_ctrl in pool_ctrls:
pool_ctrl_data = ctrls_config[pool_ctrl]
elements = pool_ctrl_data['channels']
for element, element_info in elements.items():
channel = TGChannel(element, info=element_info)
channels[element] = channel
with ActionContext(self):
# loads synchronization description
for pool_ctrl in pool_ctrls:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = ctrls_config[pool_ctrl]
ctrl.PreSynchAll()
elements = pool_ctrl_data['channels']
for element in elements:
axis = element.axis
ret = ctrl.PreSynchOne(axis, synchronization)
if not ret:
msg = ("%s.PreSynchOne(%d) returns False" %
(pool_ctrl.name, axis))
raise Exception(msg)
ctrl.SynchOne(axis, synchronization)
ctrl.SynchAll()
# attaching listener (usually acquisition action)
# to the software trigger gate generator
if self._listener is not None:
self._synch_soft.set_configuration(synchronization)
self._synch_soft.add_listener(self._listener)
remove_acq_listener = partial(self._synch_soft.remove_listener,
self._listener)
self.add_finish_hook(remove_acq_listener, False)
self._synch_soft.add_listener(
self.main_element.on_element_changed)
remove_mg_listener = partial(self._synch_soft.remove_listener,
self.main_element)
self.add_finish_hook(remove_mg_listener, False)
# subscribing to the position change events to generate events
# in position domain
if moveable is not None:
position = moveable.get_position_attribute()
position.add_listener(self._synch_soft)
remove_pos_listener = partial(position.remove_listener,
self._synch_soft)
self.add_finish_hook(remove_pos_listener, False)
# PreStartAll on all controllers
for pool_ctrl in pool_ctrls:
pool_ctrl.ctrl.PreStartAll()
# PreStartOne & StartOne on all elements
for pool_ctrl in pool_ctrls:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = ctrls_config[pool_ctrl]
elements = pool_ctrl_data['channels']
for element in elements:
axis = element.axis
channel = channels[element]
ret = ctrl.PreStartOne(axis)
if not ret:
raise Exception("%s.PreStartOne(%d) returns False" %
(pool_ctrl.name, axis))
ctrl.StartOne(axis)
# set the state of all elements to inform their listeners
for channel in channels:
channel.set_state(State.Moving, propagate=2)
# StartAll on all controllers
for pool_ctrl in pool_ctrls:
pool_ctrl.ctrl.StartAll()
if self._listener is not None:
self._synch_soft.start()
get_thread_pool().add(self._synch_soft.run)
def start_action(self, *args, **kwargs):
"""Prepares everything for acquisition and starts it.
:param: config"""
pool = self.pool
# prepare data structures
self._aborted = False
self._stopped = False
self._acq_sleep_time = kwargs.pop("acq_sleep_time",
pool.acq_loop_sleep_time)
self._nb_states_per_value = \
kwargs.pop("nb_states_per_value",
pool.acq_loop_states_per_value)
self._integ_time = integ_time = kwargs.get("integ_time")
self._mon_count = mon_count = kwargs.get("monitor_count")
if integ_time is None and mon_count is None:
raise Exception("must give integration time or monitor counts")
if integ_time is not None and mon_count is not None:
raise Exception("must give either integration time or monitor counts (not both)")
_ = kwargs.get("items", self.get_elements())
cfg = kwargs['config']
# determine which is the controller which holds the master channel
if integ_time is not None:
master_key = 'timer'
master_value = integ_time
if mon_count is not None:
master_key = 'monitor'
master_value = -mon_count
master = cfg[master_key]
master_ctrl = master.controller
pool_ctrls_dict = dict(cfg['controllers'])
pool_ctrls_dict.pop('__tango__', None)
pool_ctrls = []
self._pool_ctrl_dict_loop = _pool_ctrl_dict_loop = {}
for ctrl, v in pool_ctrls_dict.items():
if ctrl.is_timerable():
pool_ctrls.append(ctrl)
if ElementType.CTExpChannel in ctrl.get_ctrl_types():
_pool_ctrl_dict_loop[ctrl] = v
# make sure the controller which has the master channel is the last to
# be called
pool_ctrls.remove(master_ctrl)
pool_ctrls.append(master_ctrl)
# Determine which channels are active
self._channels = channels = {}
for pool_ctrl in pool_ctrls:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = pool_ctrls_dict[pool_ctrl]
main_unit_data = pool_ctrl_data['units']['0']
elements = main_unit_data['channels']
for element, element_info in elements.items():
axis = element.axis
channel = Channel(element, info=element_info)
channels[element] = channel
#for channel in channels:
# channel.prepare_to_acquire(self)
with ActionContext(self):
# PreLoadAll, PreLoadOne, LoadOne and LoadAll
for pool_ctrl in pool_ctrls:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = pool_ctrls_dict[pool_ctrl]
main_unit_data = pool_ctrl_data['units']['0']
ctrl.PreLoadAll()
master = main_unit_data[master_key]
axis = master.axis
res = ctrl.PreLoadOne(axis, master_value)
if not res:
raise Exception("%s.PreLoadOne(%d) returns False" % (pool_ctrl.name, axis,))
ctrl.LoadOne(axis, master_value)
ctrl.LoadAll()
# PreStartAll on all controllers
for pool_ctrl in pool_ctrls:
pool_ctrl.ctrl.PreStartAll()
# PreStartOne & StartOne on all elements
for pool_ctrl in pool_ctrls:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = pool_ctrls_dict[pool_ctrl]
main_unit_data = pool_ctrl_data['units']['0']
elements = main_unit_data['channels']
for element in elements:
axis = element.axis
channel = channels[element]
if channel.enabled:
ret = ctrl.PreStartOne(axis, master_value)
if not ret:
raise Exception("%s.PreStartOne(%d) returns False" \
% (pool_ctrl.name, axis))
ctrl.StartOne(axis, master_value)
# set the state of all elements to and inform their listeners
for channel in channels:
channel.set_state(State.Moving, propagate=2)
# StartAll on all controllers
for pool_ctrl in pool_ctrls:
pool_ctrl.ctrl.StartAll()
def start_action(self, *args, **kwargs):
"""Prepares everything for acquisition and starts it.
:param acq_sleep_time: sleep time between state queries
:param nb_states_per_value: how many state queries between readouts
:param integ_time: integration time(s)
:type integ_time: float or seq<float>
:param repetitions: repetitions
:type repetitions: int
:param config: configuration dictionary (with information about
involved controllers and channels)
"""
pool = self.pool
self._aborted = False
self._stopped = False
self._acq_sleep_time = kwargs.pop("acq_sleep_time",
pool.acq_loop_sleep_time)
self._nb_states_per_value = kwargs.pop("nb_states_per_value",
pool.acq_loop_states_per_value)
self._integ_time = integ_time = kwargs.get("integ_time")
self._mon_count = mon_count = kwargs.get("monitor_count")
self._repetitions = repetitions = kwargs.get("repetitions")
if integ_time is None and mon_count is None:
raise Exception("must give integration time or monitor counts")
if integ_time is not None and mon_count is not None:
msg = ("must give either integration time or monitor counts "
"(not both)")
raise Exception(msg)
_ = kwargs.get("items", self.get_elements())
cfg = kwargs['config']
# determine which is the controller which holds the master channel
if integ_time is not None:
master_key = 'timer'
master_value = integ_time
if mon_count is not None:
master_key = 'monitor'
master_value = -mon_count
master = cfg[master_key]
if master is None:
self.main_element.set_state(State.Fault, propagate=2)
msg = "master {0} is unknown (probably disabled)".format(
master_key)
raise RuntimeError(msg)
master_ctrl = master.controller
pool_ctrls_dict = dict(cfg['controllers'])
pool_ctrls_dict.pop('__tango__', None)
# controllers to be started (only enabled) in the right order
pool_ctrls = []
# controllers that will be read at the end of the action
self._pool_ctrl_dict_loop = _pool_ctrl_dict_loop = {}
# channels that are acquired (only enabled)
self._channels = channels = {}
# select only suitable e.g. enabled, timerable controllers & channels
for ctrl, pool_ctrl_data in pool_ctrls_dict.items():
# skip not timerable controllers e.g. 0D
if not ctrl.is_timerable():
continue
ctrl_enabled = False
elements = pool_ctrl_data['channels']
for element, element_info in elements.items():
# skip disabled elements
if not element_info['enabled']:
continue
# Add only the enabled channels
channel = Channel(element, info=element_info)
channels[element] = channel
ctrl_enabled = True
# check if the ctrl has enabled channels
if ctrl_enabled:
# enabled controller can no be offline
if not ctrl.is_online():
self.main_element.set_state(State.Fault, propagate=2)
msg = "controller {0} is offline".format(ctrl.name)
raise RuntimeError(msg)
pool_ctrls.append(ctrl)
# only CT will be read in the loop, 1D and 2D not
if ElementType.CTExpChannel in ctrl.get_ctrl_types():
_pool_ctrl_dict_loop[ctrl] = pool_ctrl_data
# timer/monitor channels can not be disabled
for pool_ctrl in pool_ctrls:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = pool_ctrls_dict[pool_ctrl]
timer_monitor = pool_ctrl_data[master_key]
if timer_monitor not in channels:
self.main_element.set_state(State.Fault, propagate=2)
msg = "timer/monitor ({0}) of {1} controller is "\
"disabled)".format(timer_monitor.name, pool_ctrl.name)
raise RuntimeError(msg)
# make sure the controller which has the master channel is the last to
# be called
pool_ctrls.remove(master_ctrl)
pool_ctrls.append(master_ctrl)
with ActionContext(self):
# PreLoadAll, PreLoadOne, LoadOne and LoadAll
for pool_ctrl in pool_ctrls:
try:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = pool_ctrls_dict[pool_ctrl]
ctrl.PreLoadAll()
master = pool_ctrl_data[master_key]
axis = master.axis
try:
res = ctrl.PreLoadOne(axis, master_value, repetitions)
except TypeError:
msg = ("PreLoadOne(axis, value) is deprecated since "
"version 2.3.0. Use PreLoadOne(axis, value, "
"repetitions) instead.")
self.warning(msg)
res = ctrl.PreLoadOne(axis, master_value)
if not res:
msg = ("%s.PreLoadOne(%d) returned False" %
(pool_ctrl.name, axis))
raise Exception(msg)
try:
ctrl.LoadOne(axis, master_value, repetitions)
except TypeError:
msg = ("LoadOne(axis, value) is deprecated since "
"version 2.3.0. Use LoadOne(axis, value, "
"repetitions) instead.")
self.warning(msg)
ctrl.LoadOne(axis, master_value)
ctrl.LoadAll()
except Exception, e:
self.debug(e, exc_info=True)
master.set_state(State.Fault, propagate=2)
msg = ("Load sequence of %s failed" % pool_ctrl.name)
raise Exception(msg)
# PreStartAll on all enabled controllers
for pool_ctrl in pool_ctrls:
pool_ctrl.ctrl.PreStartAll()
# PreStartOne & StartOne on all enabled elements
for pool_ctrl in pool_ctrls:
ctrl = pool_ctrl.ctrl
pool_ctrl_data = pool_ctrls_dict[pool_ctrl]
elements = pool_ctrl_data['channels'].keys()
timer_monitor = pool_ctrl_data[master_key]
# make sure that the timer/monitor is started as the last one
elements.remove(timer_monitor)
elements.append(timer_monitor)
for element in elements:
try:
channel = channels[element]
except KeyError:
continue
axis = element.axis
ret = ctrl.PreStartOne(axis, master_value)
if not ret:
msg = ("%s.PreStartOne(%d) returns False" %
(pool_ctrl.name, axis))
raise Exception(msg)
try:
ctrl.StartOne(axis, master_value)
except Exception, e:
self.debug(e, exc_info=True)
element.set_state(State.Fault, propagate=2)
msg = ("%s.StartOne(%d) failed" %
(pool_ctrl.name, axis))
raise Exception(msg)
def start_action(self, ctrls, synch_description, moveable=None,
sw_synch_initial_domain=None, *args, **kwargs):
"""Start synchronization action.
:param ctrls: list of enabled trigger/gate controllers
:type ctrls: list
:param synch_description: synchronization description
:type synch_description:
:class:`~sardana.pool.poolsynchronization.SynchDescription`
:param moveable: (optional) moveable object used as the
synchronization source in the Position domain
:type moveable: :class:`~sardna.pool.poolmotor.PoolMotor` or
:class:`~sardana.pool.poolpseudomotor.PoolPseudoMotor`
:param sw_synch_initial_domain: (optional) - initial domain for
software synchronizer, can be either
:obj:`~sardana.pool.pooldefs.SynchDomain.Time` or
:obj:`~sardana.pool.pooldefs.SynchDomain.Position`
"""
with ActionContext(self):
# loads synchronization description
for ctrl in ctrls:
pool_ctrl = ctrl.element
pool_ctrl.ctrl.PreSynchAll()
for channel in ctrl.get_channels(enabled=True):
axis = channel.axis
ret = pool_ctrl.ctrl.PreSynchOne(axis, synch_description)
if not ret:
msg = ("%s.PreSynchOne(%d) returns False" %
(ctrl.name, axis))
raise Exception(msg)
pool_ctrl.ctrl.SynchOne(axis, synch_description)
pool_ctrl.ctrl.SynchAll()
# attaching listener (usually acquisition action)
# to the software trigger gate generator
if self._listener is not None:
if sw_synch_initial_domain is not None:
self._synch_soft.initial_domain = sw_synch_initial_domain
self._synch_soft.set_configuration(synch_description)
self._synch_soft.add_listener(self._listener)
remove_acq_listener = partial(self._synch_soft.remove_listener,
self._listener)
self.add_finish_hook(remove_acq_listener, False)
self._synch_soft.add_listener(
self.main_element.on_element_changed)
remove_mg_listener = partial(self._synch_soft.remove_listener,
self.main_element)
self.add_finish_hook(remove_mg_listener, False)
# subscribing to the position change events to generate events
# in position domain
if moveable is not None:
position = moveable.get_position_attribute()
position.add_listener(self._synch_soft)
remove_pos_listener = partial(position.remove_listener,
self._synch_soft)
self.add_finish_hook(remove_pos_listener, False)
# start software synchronizer
if self._listener is not None:
self._synch_soft.start()
get_thread_pool().add(self._synch_soft.run)
# PreStartAll on all controllers
for ctrl in ctrls:
pool_ctrl = ctrl.element
pool_ctrl.ctrl.PreStartAll()
# PreStartOne & StartOne on all elements
for ctrl in ctrls:
pool_ctrl = ctrl.element
for channel in ctrl.get_channels(enabled=True):
axis = channel.axis
ret = pool_ctrl.ctrl.PreStartOne(axis)
if not ret:
raise Exception("%s.PreStartOne(%d) returns False"
% (pool_ctrl.name, axis))
pool_ctrl.ctrl.StartOne(axis)
# set the state of all elements to inform their listeners
self._channels = []
for ctrl in ctrls:
for channel in ctrl.get_channels(enabled=True):
channel.set_state(State.Moving, propagate=2)
self._channels.append(channel)
# StartAll on all controllers
for ctrl in ctrls:
pool_ctrl = ctrl.element
pool_ctrl.ctrl.StartAll()