Update HWM handling in dfmux DAQ code

* Include only boards from the HWM that are found to be online in DAQ stream
* More efficient filtering by bolometer state

Neither of these features are used in normal SPT-3G operation, but may be used
for testing.

Author: arahlin

dfmux/onlinescripts/record_bolodata.py

@@ -67,7 +67,7 @@
                     unit='Data Acquisition')
     import pydfmux
     hwm = pydfmux.load_session(open(args.hardware_map, 'r'))['hardware_map']
-    boards = hwm.query(pydfmux.Dfmux)
+    boards = hwm.query(pydfmux.Dfmux).get_online()
     boards.resolve()
     boards = boards.serial
 

dfmux/python/HardwareMapTools.py

@@ -47,10 +47,8 @@ def __init__(self, pydfmux_hwm, pathstring=None, state=[]):
             chan_map_query = pydfmux_hwm.query(pydfmux.ChannelMapping)
 
         if len(state) > 0:
-            for bolo in pydfmux_hwm.query(pydfmux.Bolometer):
-                if bolo.readout_channel:
-                    bolo.state = bolo.retrieve_bolo_state().state
-            pydfmux_hwm.commit()
+            bolos = pydfmux_hwm.query(pydfmux.Bolometer)
+            bolos.load_bolo_states(commit=True)
             chan_map_query = chan_map_query.join(pydfmux.ChannelMapping, pydfmux.Bolometer).filter(pydfmux.Bolometer.state._in(state))
 
         for bolo in chan_map_query: