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• jobName – analysis job name, arbitrary string
• hmgr – histogram manager object
• subproc – flag which should must be set to true if when running in pyana subprocesssub-process

Objects of this type are created by pyana itself and end users do not need to create new instances.

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In case of single-process job this method is equivalent to a regular Python open() method. In case of multi-processing when this method is called from a subprocess sub-process then the file is created somewhere in a temporary location (with unique name). At the end of the job files from all subprocessed sub-processes are merged into one file with name filename and the temporary files are deleted.

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This method updates environment contents with selected data from event object. This is equivalent to calling env.updateEpics() and env.updateConfig().

Parameters:

• evt – event object of type event.Event

This method is not supposed to be called from user code, pyana takes care of all updates itself.

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This method updates environment EPICS data from event object.

Parameters:

• evt – event object of type event.Event

This method is not supposed to be called from user code, pyana takes care of all updates itself.

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This method copies configuration objects from event object into environment.

Parameters:

• evt – event object of type event.Event

This method is not supposed to be called from user code, pyana takes care of all updates itself.

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Method used by pyana to extract the data produced by a single subprocess sub-process in multi-processing setup. Not to be used by end users.

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Class EpicsStore

Construction

Usage: store = pyana.event.EpicsStore()

Creates EPICS store object.

Objects of this type are created by pyana itself and end users do not need to create new instances.

Method update()

Usage: store.update(evt)

This method updates environment EPICS data from event object.

Parameters:

• evt – event object of type event.Event

This method is not supposed to be called from user code, pyana takes care of all updates itself.

Method value()

Usage epics = store.value(name)

Returns current value of the EPICS channel with the given name. The type of returned data is either pypdsdata.epics.EpicsPvCtrl or pypdsdata.epics.EpicsPvTime.

Parameters:

• name – name of the EPICS channel

This is the primary method to access EPICS information in pyana jobs.