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75 lines
2.5 KiB
ReStructuredText
75 lines
2.5 KiB
ReStructuredText
Utilities
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=========
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Local running tool
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------------------
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.. argparse::
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:ref: artiq.frontend.artiq_run.get_argparser
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:prog: artiq_run
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Remote Procedure Call tool
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------------------------------
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.. argparse::
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:ref: artiq.frontend.artiq_rpctool.get_argparser
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:prog: artiq_rpctool
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This tool is the preferred way of handling simple ARTIQ controllers.
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Instead of writing a client for very simple cases you can just use this tool
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in order to call remote functions of an ARTIQ controller.
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* Listing existing targets
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The ``list-targets`` sub-command will print to standard output the
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target list of the remote server::
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$ artiq_rpctool.py hostname port list-targets
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* Listing callable functions
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The ``list-methods`` sub-command will print to standard output a sorted
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list of the functions you can call on the remote server's target.
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The list will contain function names, signatures (arguments) and
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docstrings.
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If the server has only one target, you can do::
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$ artiq_rpctool.py hostname port list-methods
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Otherwise you need to specify the target, using the ``-t target``
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option::
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$ artiq_rpctool.py hostname port list-methods -t target_name
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* Remotely calling a function
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The ``call`` sub-command will call a function on the specified remote
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server's target, passing the specified arguments.
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Like with the previous sub-command, you only need to provide the target
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name (with ``-t target``) if the server hosts several targets.
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The following example will call the ``set_attenuation`` method of the
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Lda controller with the argument ``5``::
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$ artiq_rpctool.py ::1 3253 call -t lda set_attenuation 5
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In general, to call a function named ``f`` with N arguments named
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respectively ``x1, x2, ..., xN`` you can do::
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$ artiq_rpctool.py hostname port call -t target f x1 x2 ... xN
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You can use Python syntax to compute arguments as they will be passed
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to the ``eval()`` primitive. But beware to use quotes to separate
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arguments which use spaces::
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$ artiq_rpctool.py hostname port call -t target f '3 * 4 + 2' True '[1, 2]'
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If the called function has a return value, it will get printed to
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the standard output if the value is not None like in the standard
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python interactive console::
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$ artiq_rpctool.py ::1 3253 call get_attenuation
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5.0 dB
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