poolaction
¶
This module is part of the Python Pool libray. It defines the class for an abstract action over a set of pool elements
Functions
Classes
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get_thread_pool
()[source]¶ Returns the global pool of threads for Sardana
Returns: the global pool of threads object Return type: taurus.core.util.ThreadPool
PoolAction¶
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class
PoolAction
(main_element, name='GlobalAction')[source]¶ Bases:
taurus.core.util.log.Logger
A generic class to handle any type of operation (like motion or acquisition)
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get_main_element
()[source]¶ Returns the main element for this action
Returns: sardana.pool.poolelement.PoolElement
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main_element
¶ Returns the main element for this action
Returns: sardana.pool.poolelement.PoolElement
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pool
¶ Returns the pool object for this action
Returns: sardana.pool.pool.Pool
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add_element
(element)[source]¶ Adds a new element to this action.
Parameters: element (sardana.pool.poolelement.PoolElement) – the new element to be added
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remove_element
(element)[source]¶ Removes an element from this action. If the element is not part of this action, a ValueError is raised.
Parameters: element (sardana.pool.poolelement.PoolElement) – the new element to be removed Raises: ValueError
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get_elements
(copy_of=False)[source]¶ Returns a sequence of all elements involved in this action.
Parameters: copy_of (bool) – If False (default) the internal container of elements is returned. If True, a copy of the internal container is returned instead Returns: a sequence of all elements involved in this action. Return type: seq<sardana.pool.poolelement.PoolElement>
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get_pool_controller_list
()[source]¶ Returns a list of all controller elements involved in this action.
Returns: a list of all controller elements involved in this action. Return type: list<sardana.pool.poolelement.PoolController>
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get_pool_controllers
()[source]¶ Returns a dict of all controller elements involved in this action.
Returns: a dict of all controller elements involved in this action. Return type: dict<sardana.pool.poolelement.PoolController, seq<sardana.pool.poolelement.PoolElement>>
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is_running
()[source]¶ Determines if this action is running or not
Returns: True if action is running or False otherwise Return type: bool
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start_action
(*args, **kwargs)[source]¶ Start procedure for this action. Default implementation raises NotImplementedError
Raises: NotImplementedError
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set_finish_hooks
(hooks)[source]¶ Set finish hooks for this action.
Parameters: hooks (OrderedDict or None) – an ordered dictionary where keys are the hooks and values is a flag if the hook is permanent (not removed after the execution)
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add_finish_hook
(hook, permanent=True)[source]¶ Append one finish hook to this action.
Parameters: - hook (callable) – hook to be appended
- permanent (boolean) – flag if the hook is permanent (not removed after the execution)
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finish_action
()[source]¶ Finishes the action execution. If a finish hook is defined it safely executes it. Otherwise nothing happens
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was_stopped
()[source]¶ Determines if the action has been stopped from outside
Returns: True if action has been stopped from outside or False otherwise Return type: bool
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was_aborted
()[source]¶ Determines if the action has been aborted from outside
Returns: True if action has been aborted from outside or False otherwise Return type: bool
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was_action_interrupted
()[source]¶ Determines if the action has been interruped from outside (either from an abort or a stop).
Returns: True if action has been interruped from outside or False otherwise Return type: bool
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action_loop
()[source]¶ Action loop for this action. Default implementation raises NotImplementedError
Raises: NotImplementedError
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read_state_info
(ret=None, serial=False)[source]¶ Reads state information of all elements involved in this action
Parameters: Returns: a map containing state information per element
Return type: dict<sardana.pool.poolelement.PoolElement, stateinfo>
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raw_read_state_info
(ret=None, serial=False)[source]¶ Unsafe. Reads state information of all elements involved in this action
Parameters: Returns: a map containing state information per element
Return type: dict<sardana.pool.poolelement.PoolElement, stateinfo>
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read_value
(ret=None, serial=False)[source]¶ Reads value information of all elements involved in this action
Parameters: Returns: a map containing value information per element
Return type: dict<:class:~`sardana.pool.poolelement.PoolElement`, (value object, Exception or None)>
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raw_read_value
(ret=None, serial=False)[source]¶ Unsafe. Reads value information of all elements involved in this action
Parameters: Returns: a map containing value information per element
Return type: dict<:class:~`sardana.pool.poolelement.PoolElement,
sardana.sardanavalue.SardanaValue
>
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read_value_loop
(ret=None, serial=False)[source]¶ Reads value information of all elements involved in this action
Parameters: Returns: a map containing value information per element
Return type: dict<:class:~`sardana.pool.poolelement.PoolElement`, (value object, Exception or None)>
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raw_read_value_loop
(ret=None, serial=False)[source]¶ Unsafe. Reads value information of all elements involved in this action
Parameters: Returns: a map containing value information per element
Return type: dict<:class:~`sardana.pool.poolelement.PoolElement,
sardana.sardanavalue.SardanaValue
>
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