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import epics |
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import time |
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import sys |
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import getopt |
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def show_usage(): |
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s = """Usage caget.py [options] <PV name> ... |
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-h: show this message |
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""" |
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print s |
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sys.exit() |
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opts, args = getopt.getopt(sys.argv[1:], "htansd:#:e:f:g:w:", |
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["help", "terse","wide","number","data=",]) |
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wait_time = 1.0 |
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arr_num = None |
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format = None |
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terse = False |
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use_ts = False |
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dbr_type = None |
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enum_as_num = False |
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for (k,v) in opts: |
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if k in ("-h", "--help"): show_usage() |
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elif k == '-t': terse = True |
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elif k == '-a': use_ts = True |
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elif k == '-n': enum_as_num = True |
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elif k == '-d': dbr_type = int(v) |
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elif k == '-#': arr_num = int(v) |
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elif k == '-w': wait_time= float(v) |
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elif k == '-e': format = '%%.%ie' % int(v) |
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elif k == '-f': format = '%%.%if' % int(v) |
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elif k == '-g': format = '%%.%ig' % int(v) |
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elif k == '-s': format = 'STRING' |
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for pvname in args: |
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form='native' |
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if use_ts: form = 'time' |
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pv = epics.PV(pvname,form=form) |
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t0 = time.time() |
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pv.connect() |
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while time.time()-t0 < wait_time: |
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if pv.connected: break |
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epics.poll() |
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if not pv.connected: |
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print "%s:: not connected" % pvname |
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ox = pv.get_ctrlvars() |
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epics.poll() |
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value = pv.get(as_string=format=='STRING') |
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if pv.type == 'enum' and not enum_as_num: |
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enum_strs = pv.enum_strs |
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value = enum_strs[pv.get()] |
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outstring = '' |
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if not terse: outstring = pvname |
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if use_ts: |
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ts = epics.dbr.EPICS2UNIX_EPOCH + pv._args['timestamp'] |
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outstring = "%s %s" %(outstring,time.ctime(ts)) |
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print ts |
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print outstring, value |
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