Applet that sets a dataset

dreens

Is it possible for an applet to write to a dataset and not only listen? It'd be rad to set a click callback up for my photon histogram applet so that user can change the bright/dark threshold dataset by clicking in there for example. Or like a "runtime" applet with a bunch of buttons that enable some kind of interface with running programs, by influencing datasets that the active program checks periodically. There could be a PAUSE button there or like a REWIND button to get a spectroscopy scan to back up a couple points. I think I've cobbled together enough pyqt5 skills to pull all this off other than how the applet could influence the datasets.

Thanks for any thoughts!
Dave

dreens

I think I've solved my own problem... the applet can just use "artiq_client set-dataset" ?! I'll try it out and report back.

sb10q

Well that's one way of doing it, or you could connect to the master from the applet in Python. But the clean solution would be to forward the set-dataset method through the applet/dashboard IPC, which isn't done currently but could be added to ARTIQ.

dreens

Hi Sebastian, thanks a bunch. For connecting to the master from the applet in Python, would I essentially do what I find in the artiq repo, file artiq_client, method main? That is, use a Client as defined in artiq.protocols.pc_rpc, initialized with host ::1 and port 3251 in my case based on what I see for default behavior in artiq_client for my artiq configuration at least, and then just call 'set' on the Client object?

Could you say a bit more about what it would look like to forward the set_dataset method through the applet/dashboard IPC and what files in the artiq repo would need editing in this case?

Cheers,
Dave