def test_monitor(self):
self.assertIOCRunning()
longout = self.testprefix + 'longout'
values = []
def callback(value):
values.append(value)
m = catools.camonitor(longout, callback, notify_disconnect=True)
# Wait for connection
while not values:
cothread.Sleep(0.1)
catools.caput(longout, 43, wait=True)
catools.caput(longout, 44, wait=True)
self.iocStop()
# Can't call iocStop twice...
def iocStop():
return
self.iocStop = iocStop
m.close()
self.assertEqual(len(values), 4)
self.assertEqual(values[:3], [42, 43, 44])
self.assertEqual([v.ok for v in values], [True, True, True, False])
def test_monitor(self):
self.assertIOCRunning()
longout = self.testprefix + 'longout'
values = []
def callback(value):
values.append(value)
m = catools.camonitor(longout, callback, notify_disconnect=True)
# Wait for connection
while not values:
cothread.Sleep(0.1)
catools.caput(longout, 43, wait=True)
catools.caput(longout, 44, wait=True)
self.iocStop()
# Can't call iocStop twice...
def iocStop():
return
self.iocStop = iocStop
m.close()
self.assertEqual(len(values), 4)
self.assertEqual(values[:3], [42, 43, 44])
self.assertEqual([v.ok for v in values], [True, True, True, False])
def animate(i, ax1, thread_1):
if thread_1.new_data == 1:
axis_bk = axis()
ax1.clear()
sca(ax1)
xlabel('Bunch #')
ylabel('Amplitude')
title("Bunch " + thread_1.axis +
" oscillation amplitude @ NCO={:.5f}".format(thread_1.tune))
plot(thread_1.I, '-o')
plot(thread_1.Q, '-o')
if not thread_1.reset_axis:
axis(axis_bk)
else:
thread_1.reset_axis = False
thread_1.new_data = 0
# Ask for a new capture as soon as previous mem_read is finished
with thread_1.trigger_cdt:
thread_1.tune = catools.caget(thread_1.device + ':' + thread_1.axis +
':NCO:FREQ_S')
# Capture command doesn't work so well (mis-aligned data)
#catools.caput(thread_1.device+':MEM:CAPTURE_S', 1, wait=True)
catools.caput(thread_1.device + ':TRG:MEM:ARM_S', 1, wait=True)
catools.caput(thread_1.device + ':TRG:SOFT_S', 1, wait=True)
# Wait for memory to be actually triggered
Sleep(0.05)
thread_1.trigger_cdt.notify()
def position(**args):
'''
Users can define their own angle-value pair dictionaries.The motors will be moved to these positions
if the defined positions are within motors' hardware limits
Usage:
position() for return values of position
position(angle1=value1,angle2=value2) to move motors
'''
hw = diff.getHardware()
if len(args) == 0:
i = 0
while i < len(diff.getAngleNames()):
print str(diff.getAngleNames()[i]) + ': ' + str(diff.getAngleValues()[i])
i += 1
else:
pvList = list()
posList = list()
for entry in diff.getangleList():
if entry.getName() in args:
pvList.append(entry.getPV())
posList.append(args[entry.getName()])
if len(posList) != 0:
caput(pvList, posList,timeout=100)
angs = getAngleValues()
roundedangles = [round(elem, 2) for elem in angs]
roundedsetpoints = [round(elem, 2) for elem in diff.getAngleSetPoints()]
print 'Motor Motion in Progress'
while roundedangles != roundedsetpoints:
sleep(7.5)
angs = getAngleValues()
roundedangles = [round(elem, 2) for elem in angs]
print 'Motor Motion Completed'
print diff.getAngleValues()
hw.position = diff.getAngleSetPoints()
def orbit_dev(x, lat, hclst):
#hc1="SR:C01-MG:G02A<HCM:H1>Fld:SP"
#hc2="SR:C01-MG:G02A<HCM:H2>Fld:SP"
#hc3="SR:C01-MG:G04B<HCM:M1>Fld:SP"
# check against boundary of corrector strength
print "Setting % .4e % .4e" % (x[0], x[1]),
for cx in x:
if abs(cx) > 1e-2:
print ""
return 1e30
catools.caput(hclst[1], x[0])
catools.caput(hclst[2], x[1])
# wait for 4 seconds
time.sleep(6)
s, x, y = get_orbit(lat)
plt.clf()
plt.plot(s, x, 'r-')
plt.plot(s, y, 'g-')
plt.plot(s[1:4], x[1:4], 'ro')
plt.plot(s[1:4], y[1:4], 'gx')
plt.savefig("orbit.png")
#sys.exit(0)
orb = 0.0
for i in range(len(x)):
# skip bpms close to correctors
if i > 0 and i < 4: continue
orb += x[i]**2 + y[i]**2
print "% .6e" % orb
return orb
def _load(self, ramp_image):
if ramp_image.image == None or self.pv_name == None:
return None
if __debug__ == True:
print(
"I am going to write the stepping binary image to PV: {0}...".
format(self.pv_name))
if _NO_CATOOLS_ == True:
print("...but I see no catools module imported.")
print("Image: ", ramp_image.image)
print("Image len, bytes:", len(ramp_image.image))
if _NO_CATOOLS_ == True:
return None
try:
connect(self.pv_name, throw=False)
caput(self.pv_name, ramp_image.image, wait=True)
except:
if __debug__ == True:
print("My write to CA has failed.")
return None
return 0
def orbit_dev(x, lat, hclst):
#hc1="SR:C01-MG:G02A<HCM:H1>Fld:SP"
#hc2="SR:C01-MG:G02A<HCM:H2>Fld:SP"
#hc3="SR:C01-MG:G04B<HCM:M1>Fld:SP"
# check against boundary of corrector strength
print "Setting % .4e % .4e" % (x[0], x[1]),
for cx in x:
if abs(cx) > 1e-2:
print ""
return 1e30
catools.caput(hclst[1], x[0])
catools.caput(hclst[2], x[1])
# wait for 4 seconds
time.sleep(6)
s, x, y = get_orbit(lat)
plt.clf()
plt.plot(s, x, 'r-')
plt.plot(s, y, 'g-')
plt.plot(s[1:4], x[1:4], 'ro')
plt.plot(s[1:4], y[1:4], 'gx')
plt.savefig("orbit.png")
#sys.exit(0)
orb = 0.0
for i in range(len(x)):
# skip bpms close to correctors
if i > 0 and i < 4: continue
orb += x[i]**2 + y[i]**2
print "% .6e" % orb
return orb
def theo_local_bump1(lat):
"""Given a lattice list, calculate the theoretical local bump
"""
# all elements
betax = [v for v in catools.caget("SR:C00-Glb:G00<BETA:00>RB:X")]
phix = [v for v in catools.caget("SR:C00-Glb:G00<PHI:00>RB:X")]
bpm_idx = lat.group_index("BPMX")
ch_idx = lat.group_index("TRIMX")
# two kicker, 11*2pi phase advance.
hc1 = "SR:C01-MG:G02A<HCM:H1>Fld:SP"
hc2 = hc1
hc3 = "SR:C10-MG:G06A<HCM:H2>Fld:SP"
ic1 = lat.pvindex(hc1)
ic2 = lat.pvindex(hc2)
ic3 = lat.pvindex(hc3)
print "index:", ic1, ic2, ic3
print "beta", betax[ic1], betax[ic2], betax[ic3]
print "s_end", lat.s_end(hc1), lat.s_end(hc2), lat.s_end(hc3)
print "phase:", phix[ic1], phix[ic2], phix[ic3]
c1 = 1e-5
catools.caput(hc1, c1)
catools.caput(hc3, -c1 * sqrt(betax[ic1] / betax[ic3]))
time.sleep(4)
s, x1, y1 = get_orbit(lat, 4)
print "get orbit"
def go_direct(self, position, wait=True, callback=None):
ca.caput(self.direct_demand,
position,
wait=wait,
timeout=60,
callback=callback)
Sleep(.05) # test clipper reports in position a little early sometimes
def theo_local_bump1(lat):
"""Given a lattice list, calculate the theoretical local bump
"""
# all elements
betax = [v for v in catools.caget("SR:C00-Glb:G00<BETA:00>RB:X")]
phix = [v for v in catools.caget("SR:C00-Glb:G00<PHI:00>RB:X")]
bpm_idx = lat.group_index("BPMX")
ch_idx = lat.group_index("TRIMX")
# two kicker, 11*2pi phase advance.
hc1="SR:C01-MG:G02A<HCM:H1>Fld:SP"
hc2=hc1
hc3="SR:C10-MG:G06A<HCM:H2>Fld:SP"
ic1 = lat.pvindex(hc1)
ic2 = lat.pvindex(hc2)
ic3 = lat.pvindex(hc3)
print "index:", ic1, ic2, ic3
print "beta", betax[ic1], betax[ic2], betax[ic3]
print "s_end", lat.s_end(hc1), lat.s_end(hc2), lat.s_end(hc3)
print "phase:", phix[ic1], phix[ic2], phix[ic3]
c1 = 1e-5
catools.caput(hc1, c1)
catools.caput(hc3, -c1*sqrt(betax[ic1]/betax[ic3]))
time.sleep(4)
s,x1,y1 = get_orbit(lat, 4)
print "get orbit"
def startCounter(self):
if self.runmode == 1 and self.counterRun == 0:
self.runRequested = 1
catools.caput("V5:SYN:StartC.PROC", 1) # run
else:
print("running")
catools.caput("V5:SYN:StartC.PROC", 1)
def set_single(self, pv, value, throw=True):
"""Set the value of a given PV.
Args:
pv (string): PV to set the value of.
value (object): The value to set the PV to.
throw (bool): On failure: if True, raise ControlSystemException: if
False, log a warning.
Returns:
bool: True for success, False for failure
Raises:
ControlSystemException: if it cannot connect to the specified PV.
"""
try:
caput(pv, value, timeout=self._timeout, throw=True)
return True
except ca_nothing:
error_msg = f"Cannot connect to {pv}."
if throw:
raise ControlSystemException(error_msg)
else:
logging.warning(error_msg)
return False
def put(self, pv, value):
""" Set the value for a given.
Args:
pv(string): The pv to set the value of. It must be a setpoint pv.
value(Number): The value to set the pv to.
"""
caput(pv, value)
def set_cs_group(self, group):
ca.caput(self.pv_cs_group, group, wait=True)
# TODO we have race conditions on switch of CS:-
# (1) if the direct demand resolutions need to change there is a small delay
# (2) the brick itself may take a short time to do the CS mappings
# for now we require a short wait after a switch
# (this may not be fixable - (1) showed up on ppmac (2) showed up on VMXI)
Sleep(.3)
def testMaskedSp(self):
v1 = []
for v in self._v0[-20:]:
v1.extend([v+3.0, 1.0])
v1[-1] = 0
v1[-3] = 0
v1[-5] = 0
caput("l:SR:APHLA:SOFB{COR}I:Sp1Mark_wfm_8_", v1)
time.sleep(15)
def _writePv(self, v):
"""
"""
c = QObject.sender(self)
i = self.spinbox.index(c)
#print i, c.text(), "changed"
#print self.pvs_sp[i], v
caput(self.pvs_sp[i], v)
def capture_one_image_stream():
settings = [("13SIM1:HDF1:FileWriteMode", "Stream", None)]
load_settings(settings)
print "Start capture mode"
caput("13SIM1:HDF1:Capture", 1, wait=False)
# Wait for a brief moment to allow the file saving plugin to create the file
cothread.Sleep(1.0)
print "Acquire a single frame"
caput("13SIM1:cam1:Acquire", 1, wait=False)
def setValue(self, value):
try:
self._value = value
caput(self._pv, value)
except:
logInstance.logger.error(
'Connection with IOC failed. Make sure EPICS motor record PVs are accessible under this subnet')
raise RuntimeWarning(
'Connection with IOC failed. Make sure EPICS motor record PVs are accessible under this subnet')
def set_vertical_xbpm_scale_factor(self, energy):
ky = (-26 * energy + 1120) / self.optics
kx = 1200 / self.optics
catools.caput(self.tetramm_prefix + str(self.xbpm_num) +
':DRV:PositionScaleY', ky)
logging.info("Position scale Y set to " + str(ky))
catools.caput(self.tetramm_prefix + str(self.xbpm_num) +
':DRV:PositionScaleX', kx)
logging.info("Position scale X set to " + str(kx))
def _writePv(self, v):
"""
"""
c = QObject.sender(self)
i = self.spinbox.index(c)
#print i, c.text(), "changed"
#print self.pvs_sp[i], v
caput(self.pvs_sp[i], v)
def testDx(self):
v1 = [v + 0.1 for v in self._v0]
caput(self._pvs, v1, wait=True)
time.sleep(5)
v1r = caget(self._pvsrb)
v1w = caget(self._pvs)
for i,vi in enumerate(v1):
self.assertAlmostEqual(v1[i], v1r[i], places=1,
msg= "{0} != {1} for {2}".format(v1[i], v1r[i], self._pvs[i]))
self.assertAlmostEqual(v1[i], v1w[i], places=5)
def configure_axes(self):
for axis in ALL_AXES:
this_axis = getattr(self, 'axis'+axis)
ca.caput("{}{}:UseAxis".format(self.pv_root, axis), this_axis.use)
if this_axis.use:
print("PUTTING positions {} TO {}{}:Positions".format(this_axis.positions, self.pv_root, axis))
ca.caput("{}{}:Positions".format(self.pv_root, axis), this_axis.positions,
wait=True)
def _trigger_epics(self):
"""Private method to update the EPICS variables
This will write a value to the .PROC record that will update all of the
process variables on that database.
Args:
Returns:
"""
caput(self.epicsID + ".PROC", 1) # Write to the .PROC data base to update all of the values
def test_si(self):
self.assertIOCRunning()
si = self.testprefix + 'si'
v = catools.caget(si)
self.assertNotEqual(v, 'hello world')
catools.caput(si, 'hello world')
v = catools.caget(si)
self.assertEqual(v, 'hello world')
def test_si(self):
self.assertIOCRunning()
si = self.testprefix+'si'
v = catools.caget(si)
self.assertNotEqual(v, 'hello world')
catools.caput(si, 'hello world')
v = catools.caget(si)
self.assertEqual(v, 'hello world')
def _write_epics_pv(self, pv, value):
"""Private method to read an Epics process variable.
Args:
pv (str): Name of the Epics process variable to read.
value (variant): The value to be written to the epics variable
Returns:
variant: Value of requested process variable after writing to it
"""
caput(self.epicsID + pv, value) # Write to EPICs PV
return self._read_epics_pv(pv)
def test_cothread_ioc(cothread_ioc):
import cothread
from cothread.catools import ca_nothing, caget, caput, camonitor
pre = cothread_ioc.pv_prefix
with Listener(ADDRESS) as listener, listener.accept() as conn:
select_and_recv(conn, "R") # "Ready"
# Start
assert caget(pre + ":UPTIME").startswith("00:00:0")
# WAVEFORM
caput(pre + ":SINN", 4, wait=True)
q = cothread.EventQueue()
m = camonitor(pre + ":SIN", q.Signal, notify_disconnect=True)
assert len(q.Wait(1)) == 4
# STRINGOUT
assert caget(pre + ":STRINGOUT") == "watevah"
caput(pre + ":STRINGOUT", "something", wait=True)
assert caget(pre + ":STRINGOUT") == "something"
# Check pvaccess works
from p4p.client.cothread import Context
with Context("pva") as ctx:
assert ctx.get(pre + ":STRINGOUT") == "something"
conn.send("D") # "Done"
select_and_recv(conn, "D") # "Done"
# Stop
cothread_ioc.proc.send_signal(signal.SIGINT)
# Disconnect
assert isinstance(q.Wait(10), ca_nothing)
m.close()
# check closed and output
out, err = cothread_ioc.proc.communicate()
out = out.decode()
err = err.decode()
# check closed and output
try:
assert "%s:SINN.VAL 1024 -> 4" % pre in out
assert 'update_sin_wf 4' in out
assert "%s:STRINGOUT.VAL watevah -> something" % pre in out
assert 'on_update \'something\'' in out
assert 'Starting iocInit' in err
assert 'iocRun: All initialization complete' in err
except Exception:
# Useful printing for when things go wrong!
print("Out:", out)
print("Err:", err)
raise
def check_range(self, val):
self.r = catools.caget(
self.tetramm_prefix + self.xbpm_num + ':DRV:Range')
if self.r == 0: # 120uA
if val < self.lower_current_limit:
catools.caput(
self.tetramm_prefix + str(self.xbpm_num) + ':DRV:Range', 1)
logging.info("Current range set to +-120nA")
elif self.r == 1: # 120nA
if val > self.upper_current_limit:
catools.caput(
self.tetramm_prefix + str(self.xbpm_num) + ':DRV:Range', 0)
logging.info("Current range set to +-120uA")
def make(*trajectories):
"""The function will do the following:
* Calculate the maximum length of the arrays
* Zero pad all trajectories to this length
* Write them as trajectories for M1..M8
* Set # Traj Elements to be this length"""
maxlen = max([len(x) for x in trajectories])
trajectories = [x + [0] * (maxlen - len(x)) for x in trajectories[:8]]
setupPVs = [prefix + "Nelements"]
setupVals = [maxlen]
caput(setupPVs, setupVals)
trajPVs = ["%sM%sTraj" % (prefix, i + 1) for i in range(len(trajectories))]
caput(trajPVs, trajectories)
print "Wrote trajectories for first %s motors" % len(trajectories)
def _setpvs(self, T, C):
pvs = [self.prefix + "EvtCode-SP", self.prefix + "Timestamp-SP"]
try:
self.enableAll.emit(False)
caput(pvs, [C,T], timeout=2.0, wait=True)
self.msg("Sent", 2000)
except catools.ca_nothing,E:
if E.errorcode==cadef.ECA_TIMEOUT:
M='Timeout'
else:
M=cadef.ca_message(E.errorcode)
self.msg("Sent failed: "+M, 4000)
return
def undocallback(self, value):
"""
"""
if value == 1:
try:
if self.plane == 0:
if self.previoush is None:
ca.caput(self.pvmapping.__status__, "There is nothing to undo for horizontal plane",
datatype=DBR_CHAR_STR)
else:
for i, cor in enumerate(self.cors):
cor.set("x", self.previoush[i], unitsys=None)
self.previoush = None
elif self.plane == 1:
if self.previousv is None:
ca.caput(self.pvmapping.__status__, "There is nothing to undo for vertical plane",
datatype=DBR_CHAR_STR)
else:
for i, cor in enumerate(self.cors):
cor.set("y", self.previousv[i], unitsys=None)
self.previousv = None
ca.caput(value.name, 0)
except ca.ca_nothing:
try:
ca.caput(self.pvmapping.__status__, "Failed to undo action.", datatype=DBR_CHAR_STR)
except ca.ca_nothing:
print "Cannot set status pv"
def rampingPut(self):
try:
step = int(self.stepLineEdit.text())
delay = float(self.delayLineEdit.text())
except:
print("No ramping: wrong settings of Step or Delay time.")
QMessageBox.warning(
self, 'Warning',
'No ramping: wrong settings of Step or Delay time. Please try again'
)
return
#print("Number of steps: %d; Waiting time between steps: %d"%(step, delay))
if step < 1:
print("No ramping: number of steps can't be zero")
QMessageBox.warning(
self, 'Warning',
'No ramping: the number of Steps should be >=1. Please try again'
)
return
try:
curValues = caget(self.rampPVList, timeout=2, throw=False)
except:
print(
"Oops: can't get PV values to ramp the machine, but will try one-step simple restore"
)
traceback.print_exc()
#QMessageBox.warning(self, 'Warning', "No multiple-step gradual put: some PVs seem disconnected")
return True #try one-step simple put
#print(self.rampPVList)
#print(curValues)
#print(self.rampRestoreData)
try:
stepSize = [(i - j) / step
for i, j in zip(self.rampRestoreData, curValues)]
#print(stepSize)
for l in range(1, step):
stepValues = [l * m + n for m, n in zip(stepSize, curValues)]
#print(stepValues)
caput(self.rampPVList, stepValues)
cothread.Sleep(delay)
except:
print(
"Oops: something wrong with ramping machine, but will try one-step simple restore"
)
traceback.print_exc()
#QMessageBox.warning(self, 'Warning', "Oops: something wrong with multiple-step gradual put")
return True
def __init__(self, device):
Thread.__init__(self)
mem_trig_request_lock = Lock()
mem_trig_request_lock.acquire()
self.trigger_cdt = Condition(mem_trig_request_lock)
self.device = device
self.axis = catools.caget(device + ':AXIS{}'.format(int(channel)))
# Set runout to 12.5 %
catools.caput(device + ':MEM:RUNOUT_S', 0, wait=True)
self.new_data = 0
self.stop = 0
self.do_reset_axis()
self.mbf = MBF_mem(device)
self.decimation = self.mbf.get_max_decimation()
self.max_count = self.mbf.get_count_max(self.decimation)
def configure_file(self, outputfile, xmldef=None):
if xmldef:
caput( self.pv['xmlfile'], os.path.abspath(xmldef), datatype=dbr.DBR_CHAR_STR, wait=True)
validxml = caget( self.pv['xmlvalid'])
if validxml is 0:
errmsg = caget( self.pv['xmlerror'] )
raise StrException(errmsg)
outputfile = os.path.abspath(outputfile)
fname = os.path.basename(outputfile)
dname = os.path.dirname(outputfile)
caput( self.pv['template'], "%s%s", datatype = dbr.DBR_CHAR_STR )
caput( self.pv['path'], dname, datatype = dbr.DBR_CHAR_STR)
caput( self.pv['name'], fname, datatype = dbr.DBR_CHAR_STR)
caput( self.pv['mode'], "Stream", wait=True)
def test_xsel_1x1(self):
pvs = ["SR:" + s + "Enbl:Ps1OC-Cmd"
for s in self._cor_dev]
jl = random.sample(range(len(pvs)), 20)
pvjl = [pvs[j] for j in jl]
x0 = caget(pvjl)
x1 = [1 - x for x in x0]
caput(pvjl, x1)
time.sleep(1.5)
x2 = caget(pvjl)
x2wfm = caget(P + "SR:APHLA:SOFB{COR}XSel-I")
for i,j in enumerate(jl):
self.assertNotEqual(x2[i], x0[i])
self.assertEqual(x2[i], x2wfm[j])
caput(pvjl, x0)
def _cleanlocalbump(self):
"""Clean local bump and set all values to zero."""
try:
print "clean up local bump"
bpms = np.zeros(self.bpmcounts)
cors = np.zeros(self.corscount)
ca.caput([self.pvmapping.__bpmposition__, self.pvmapping.__bpmorbitx__, self.pvmapping.__bpmorbity__,
self.pvmapping.__correctorposition__,
self.pvmapping.__hcorrectorcurrent__, self.pvmapping.__hcorrectordiff__,
self.pvmapping.__vcorrectorcurrent__, self.pvmapping.__vcorrectordiff__],
[bpms, bpms, bpms, cors, cors, cors, cors, cors])
except ca.ca_nothing:
print traceback.print_exc()
print "Cannot clean devices for local bump"
def caput(self, value):
if self.timeout < 0:
timeout = None
else:
timeout = self.timeout
self.log.info("caput %s %s", self.pv, value)
catools.caput(self.pv,
value,
wait=True,
timeout=timeout,
datatype=self.datatype)
# now do a caget
value = catools.caget(self.rbv,
format=catools.FORMAT_TIME,
datatype=self.datatype)
self._update_value(value)
def capture_one_image_single():
settings = [
("13SIM1:cam1:ImageMode", "Single", None),
("13SIM1:cam1:ArrayCallbacks", "Enable", None),
("13SIM1:cam1:ArrayCounter", 0, None),
("13SIM1:HDF1:EnableCallbacks", "Enable", None),
("13SIM1:HDF1:ArrayCounter", 0, None),
]
load_settings(settings)
timeout = caget("13SIM1:cam1:AcquirePeriod_RBV") * 1.5 + 1.0
print "Acquiring and storing a single image in 'Single' mode"
caput("13SIM1:cam1:Acquire", 1, wait=True, timeout=timeout)
# Wait for a brief moment to allow the file saving to complete
cothread.Sleep(1.0)
fname = caget("13SIM1:HDF1:FullFileName_RBV", datatype=dbr.DBR_CHAR_STR)
print "Captured into image file: ", fname
def epicsPut(self, pv, val):
"""Do an epics caput and return status"""
s = catools.caput(pv, val, throw=False)
if not s:
logging.warning("Failed caput on '%s' error = %s", s.name, str(s))
return False
return True
def epicsPut(self, pv, val):
"""Do an epics caput and return status"""
s = catools.caput(pv, val, throw = False)
if not s:
logging.warning("Failed caput on '%s' error = %s", s.name, str(s))
return False
return True
def caput(pvs,
values,
repeat_value=None,
datatype=None,
wait=True,
timeout=5,
callback=None,
throw=True):
"""
Convenience function that wraps the cothread.catools.caput()
function with safe handling of unicode strings in Python 2.X.
.. note:: The default value of the 'wait' keyword argument
has been changed from the original cothread function.
.. note:: The default value of the 'repeat_value' keyword
argument has been changed from the original cothread
function. The original cothread function raises an
exception if the repeat_value argument is given when
using a single channel. This function permits the
repeat_value argument to be given with a value of
None when using a single channel. When using an
array of channels, a repeat_value with the value
of None is the same as the value of False.
"""
if isinstance(pvs, str):
if repeat_value is not None:
raise ValueError("repeat_value must be None for a single channel")
return catools.caput(_to_str(pvs),
values,
datatype=datatype,
wait=wait,
timeout=timeout,
callback=callback,
throw=throw)
else:
if repeat_value is None:
repeat_value = False
return catools.caput(_to_str(pvs),
values,
repeat_value=repeat_value,
datatype=datatype,
wait=wait,
timeout=timeout,
callback=callback,
throw=throw)
def _aplocalbumpcreation(self, plane, ename, source, bumpsettings):
"""
plane: 0: X plane, 1: Y plane;
ename: selected insertion device element name;
source: s position at source position
bumpsettings: local bump settings: [shift, angle]
return: delta correctors [H, V]
"""
if plane == 0:
fld = 'x'
#xc = ((self.idobj.se - self.idobj.sb) / 2.0 - self.sourceposition) * \
# bumpsettings[1] + bumpsettings[0]
#thetac = bumpsettings[1]
elif plane == 1:
fld = 'y'
xc = ((self.idobj.se - self.idobj.sb) / 2.0 - self.sourceposition) * \
bumpsettings[1] + bumpsettings[0]
thetac = bumpsettings[1]
if self.previoush is None:
self.previoush = [0.0] * self.corscount
for i, cor in enumerate(self.cors):
self.previoush[i] = cor.get(fld, unitsys=None, handle="setpoint")
niter = 10
for i in range(niter):
cothread.Yield(0.10)
norm0, norm1, norm2, corvals = \
ap.setIdBump(ename, xc, thetac, plane=fld)
angle, position, _, _ = self._getliveangleandpos(self.bpms[self.bpmcounts/2-1], self.bpms[self.bpmcounts/2])
# if the achieved angle and offset are very close to desired values, break
# can not distinguish 10urad and 5um.
if np.abs(angle - thetac) < 1e-2 and np.abs(xc - position) < 5e-3:
break
if corvals is None:
msg = "{0}/{1} Minimum chi^2 achieved: {2} (predicted: {3})".format(i,niter,norm0, norm1)
else:
msg = "{0}/{1} chi^2 decreased {2} from {3} (predicted: {4})".format(
i, niter, norm2-norm0, norm0, norm1)
ca.caput(self.pvmapping.__status__, msg[:255], datatype=DBR_CHAR_STR)
delta = ap.fget(self.cors, fld, unitsys=None, handle="setpoint") - np.array(self.previoush, 'd')
return delta
def validate_test_runner(
self,
creation_func,
new_value,
expected_value,
validate_pass: bool):
parent_conn, child_conn = multiprocessing.Pipe()
device_name = create_random_prefix()
process = multiprocessing.Process(
target=self.validate_ioc_test_func,
args=(device_name, creation_func, child_conn, validate_pass),
)
process.start()
from cothread.catools import caget, caput, _channel_cache
try:
# Wait for message that IOC has started
select_and_recv(parent_conn, "R")
# Suppress potential spurious warnings
_channel_cache.purge()
kwargs = {}
if creation_func in [builder.longStringIn, builder.longStringOut]:
from cothread.dbr import DBR_CHAR_STR
kwargs.update({"datatype": DBR_CHAR_STR})
put_ret = caput(
device_name + ":VALIDATE-RECORD",
new_value,
wait=True,
**kwargs,
)
assert put_ret.ok, "caput did not succeed"
ret_val = caget(
device_name + ":VALIDATE-RECORD",
timeout=TIMEOUT,
**kwargs
)
if creation_func in [builder.WaveformOut, builder.WaveformIn]:
assert numpy.array_equal(ret_val, expected_value)
else:
assert ret_val == expected_value
finally:
# Suppress potential spurious warnings
_channel_cache.purge()
parent_conn.send("D") # "Done"
process.join(timeout=TIMEOUT)
def get_mr(self):
get_command = util.abstract_caget
beam_current_max_warning = False
# Only control injection if there are variables that require it.
if self.measurement_vars_inj:
# First measure the injection results
# Begin injecting
print "Start injection"
caput('LI-TI-MTGEN-01:START', 1)
cothread.Sleep(0.1)
caput('LI-TI-MTGEN-01:START', 0)
cothread.Sleep(4.0)
if self.beam_current_bounds[0] is not None:
beam_current = get_command('SR-DI-DCCT-01:SIGNAL')
while beam_current < self.beam_current_bounds[0]:
print 'waiting for beam current to rise above ', \
self.beam_current_bounds[0]
cothread.Sleep(1)
beam_current = get_command('SR-DI-DCCT-01:SIGNAL')
print '...'
mrs_inj = util.measure_results(self.measurement_vars_inj,
util.abstract_caget)
# Now for the non-injection measurements
if self.beam_current_bounds[1] is not None:
if get_command(
'SR-DI-DCCT-01:SIGNAL') > self.beam_current_bounds[1]:
beam_current_max_warning = True
# Stop injection
print "Stop injection"
caput('LI-TI-MTGEN-01:STOP', 1)
cothread.Sleep(0.1)
caput('LI-TI-MTGEN-01:STOP', 0)
cothread.Sleep(1)
else:
mrs_inj = []
mrs_noinj = util.measure_results(self.measurement_vars_noinj,
util.abstract_caget)
# Now combine the results into a single list
mrs = mrs_noinj + mrs_inj
if beam_current_max_warning:
msg = 'Beam current limit exceeded.\nDump the beam before pressing OK.'
tkMessageBox.showwarning('DUMP THE BEAM', msg)
return mrs
def test_auto_home_resets_cs_demands(self):
tb = TestBrick()
tb.set_cs_group(tb.g3)
tb.height.go(10)
tb.cs3.M1.go_direct(10)
self.assertAlmostEqual(10, tb.height.pos, DECIMALS)
self.assertAlmostEqual(10, tb.m1.pos, DECIMALS)
# auto home everything
ca.caput('PMAC_BRICK_TEST:HM:HMGRP', 'All')
ca.caput('PMAC_BRICK_TEST:HM:HOME', 1, wait=True, timeout=20)
self.assertAlmostEqual(0, tb.height.pos, DECIMALS)
self.assertAlmostEqual(0, tb.m1.pos, DECIMALS)
# now move a different motor in the CS, the other two would continue to
# their previous destinations if makeCSDemandsConsistent has failed
tb.cs3.M2.go_direct(10)
self.assertAlmostEqual(0, tb.height.pos, DECIMALS)
self.assertAlmostEqual(0, tb.m1.pos, DECIMALS)
self.assertAlmostEqual(10, tb.m2.pos, DECIMALS)
def rampingPut(self):
try:
step = int(self.stepLineEdit.text())
delay = float(self.delayLineEdit.text())
except:
print("No ramping: wrong settings of Step or Delay time.")
QMessageBox.warning(self, "Warning", "No ramping: wrong settings of Step or Delay time. Please try again")
return
# print("Number of steps: %d; Waiting time between steps: %d"%(step, delay))
if step < 1:
print("No ramping: number of steps can't be zero")
QMessageBox.warning(self, "Warning", "No ramping: the number of Steps should be >=1. Please try again")
return
try:
curValues = caget(self.rampPVList, timeout=2, throw=False)
except:
print("Oops: can't get PV values to ramp the machine, but will try one-step simple restore")
traceback.print_exc()
# QMessageBox.warning(self, 'Warning', "No multiple-step gradual put: some PVs seem disconnected")
return True # try one-step simple put
# print(self.rampPVList)
# print(curValues)
# print(self.rampRestoreData)
try:
stepSize = [(i - j) / step for i, j in zip(self.rampRestoreData, curValues)]
# print(stepSize)
for l in range(1, step):
stepValues = [l * m + n for m, n in zip(stepSize, curValues)]
# print(stepValues)
caput(self.rampPVList, stepValues)
cothread.Sleep(delay)
except:
print("Oops: something wrong with ramping machine, but will try one-step simple restore")
traceback.print_exc()
# QMessageBox.warning(self, 'Warning', "Oops: something wrong with multiple-step gradual put")
return True
def get_mr(self):
get_command = util.abstract_caget
beam_current_max_warning = False
# First measure the injection results
# Begin injecting
print "Start injection"
caput('LI-TI-MTGEN-01:START', 1)
cothread.Sleep(0.1)
caput('LI-TI-MTGEN-01:START', 0)
cothread.Sleep(4.0)
if self.beam_current_bounds is not None:
beam_current = get_command('SR-DI-DCCT-01:SIGNAL')
while beam_current < self.beam_current_bounds[0]:
print 'waiting for beam current to rise above ', \
self.beam_current_bounds[0]
cothread.Sleep(1)
beam_current = get_command('SR-DI-DCCT-01:SIGNAL')
print '...'
mrs_inj = util.measure_results(self.measurement_vars_inj,
util.abstract_caget)
# Now for the non-injection measurements
if self.beam_current_bounds is not None:
if get_command(
'SR-DI-DCCT-01:SIGNAL') > self.beam_current_bounds[1]:
beam_current_max_warning = True
# Stop injection
print "Stop injection"
caput('LI-TI-MTGEN-01:STOP', 1)
cothread.Sleep(0.1)
caput('LI-TI-MTGEN-01:STOP', 0)
cothread.Sleep(1)
mrs_noinj = util.measure_results(self.measurement_vars_noinj,
util.abstract_caget)
# Now combine the results into a single list
results = mrs_noinj + mrs_inj
mrs = results
return mrs
def setStatus(self, unit, status):
# Here we just write to PV
if self.autoActions is None:
return False
val = self.autoActions['PVs'][unit][status]
logging.debug("setStatus() : pv = %s status = %s", val[0], val[1])
s = catools.caput(val[0],val[1])
if not s:
logging.error("setStatus() : Unable to set status on unit %d", unit)
return False
else:
return True
def write_epics_pv(epics_id, pv, val):
"""Private method to write to an Epics process variable.
Wraps up caget call, makes it easy for multiple reads to be programmed
and a timeout added if required.
Args:
epics_id (Str): The EPICS name of the device.
pv (str): Name of the Epics process variable to read.
val (str, int, float): Value to write to the process variable.
Returns:
variant: Value of requested process variable.
"""
return caput(':'.join((epics_id, pv)), val) # Write PV data
def _load(self, ramp_image):
if ramp_image.image == None or self.pv_name == None:
return None
if __debug__ == True:
print "I am going to write the stepping binary image to PV: {0}...".format(self.pv_name)
if _NO_CATOOLS_ == True:
print "...but I see no catools module imported."
print "Image: ", ramp_image.image
print "Image len, bytes:", len(ramp_image.image)
if _NO_CATOOLS_ == True:
return None
try:
connect(self.pv_name, throw=False)
caput(self.pv_name, ramp_image.image, wait=True)
except:
if __debug__ == True:
print "My write to CA has failed."
return None
return 0
def moveMultiple(motors):
hw = diff.getHardware()
pvList = list()
posList = list()
for entry in getangleInstances():
if motors.has_key(entry.getName()):
pvList.append(entry.getPV())
posList.append(motors[entry.getName()])
if len(posList) != 0:
caput(pvList, posList)
rounded_setPoints = [round(elem, 2) for elem in diff.getAngleSetPoints()]
rounded_angVals = [round(elem, 2) for elem in getAngleValues()]
mtrs = rounded_angVals
print 'actual', mtrs
print 'setPoint', rounded_setPoints
while rounded_setPoints != mtrs:
print 'Motor Motion in Progress\n'
#print 'Actual Motor Positions:', mtrs
#print 'Motor Position Set Point', rounded_setPoints
sleep(5)
rounded_angVals = [round(elem, 2) for elem in getAngleValues()]
mtrs = rounded_angVals
hw.position = diff.getAngleSetPoints()
def set_feedback_pid(self):
for pid in self.xbpm_pid_params_list:
catools.caput(pid.feedback_prefix + '.KP',
self.pv_dict['KP' + pid.position].get())
catools.caput(pid.feedback_prefix + '.KI',
self.pv_dict['KI' + pid.position].get())
catools.caput(pid.feedback_prefix + '.KD',
self.pv_dict['KD' + pid.position].get())
logging.debug("Feedback PID values set")
def _load(self, ramp_image):
if self.pv_name == None:
return None
if ramp_image.image == None:
return None
if self.channel_index == None:
return None
pRamping = self.pv_name + 'Chan' + str(self.channel_index) + '-Asyn.BOUT'
if __debug__ == True:
print "Preparing to load full ramp in channel " + str(self.channel_index) + " using PV:"
print pRamping
print "Destination channel index is", self.channel_index
print "I am going to write the binary image of full ramp to PV with prefix: {0}...".format(self.pv_name)
if _NO_CATOOLS_ == True:
print "...but I see no catools module imported."
#print "Image: ", ramp_image.image
print "Image len, bytes:", len(ramp_image.image)
if _NO_CATOOLS_ == True:
return None
try:
#Writing binary ramp table...
connect(pRamping, throw=False)
caput(pRamping, ramp_image.image, wait=True)
except:
if __debug__ == True:
print "My write to CA has failed."
return None
return 0
def planecallback(self, value):
"""Set source plane when it is changed."""
self.plane = value
cothread.Sleep(2.0)
if self.selecteddevice != "NULL":
try:
ca.caput(self.pvmapping.__shift__, ca.caget(self.pvmapping.__positionrb__))
ca.caput(self.pvmapping.__angle__, ca.caget(self.pvmapping.__anglerb__))
except ca.ca_nothing:
# do not do anything for this exception.
pass
else:
try:
ca.caput(self.pvmapping.__shift__, 0.0)
ca.caput(self.pvmapping.__angle__, 0.0)
except ca.ca_nothing:
# do not do anything for this exception.
pass
def caput(pvs, values, timeout=CA_TIMEOUT, wait=True, throw=True, verbose = 0):
"""channel access write.
This is simple wrap of `cothread.catools.caput` to support UTF8 string
see original :func:`cothread.catools.caput` for details
Parameters
-----------
pvs : str, list. process variables
values : float/int, list. setting values
timeout : int.
wait : bool.
throw : bool.
Returns
---------
see :func:`cothread.catools.caput`
Examples
----------
>>> caput('SR:C01-MG:G04B{Quad:M1}Fld-I', 0.1)
>>> caput(['SR:PV1', 'SR:PV2'], [0.1, 0.2])
"""
_logger.debug("setting '%s' '%s'" % (str(pvs), str(values)))
if CA_OFFLINE: return _ca_put_sim(pvs, values)
if isinstance(pvs, str):
pvs2 = pvs
elif isinstance(pvs, unicode):
pvs2 = pvs.encode("ascii")
elif isinstance(pvs, list):
pvs2 = [pv.encode("ascii") for pv in pvs]
else:
raise ValueError("Unknown type " + str(type(pvs)))
try:
return ct.caput(pvs2, values, timeout=timeout, wait=wait, throw=throw)
except cothread.Timedout:
if os.environ.get('APHLAS_DISABLE_CA', 0):
print "TIMEOUT: reading", pvs
else:
raise cothread.Timedout
def theo_local_bump2(lat):
# all elements
hc1="SR:C03-MG:G02A<HCM:H1>Fld:SP"
hc2="SR:C03-MG:G02A<HCM:H2>Fld:SP"
hc3="SR:C03-MG:G04B<HCM:M1>Fld:SP"
c1 = 1e-5
c2, c3 = theoretical_strength(lat, (hc1, hc2, hc3), c1)
catools.caput(hc1, c1)
catools.caput(hc2, c2)
catools.caput(hc3, c3)
time.sleep(6)
s, x, y = get_orbit(lat)
def uploadCommands(self, prefix):
print "uploading commands to PVs with prefix %s" % prefix
# potentially we could enable these PVs before setting them and this
# would update the GUI nicely HOWEVER - when the records process
# they are sent to the controller via the stream protocol file
# there is no way to suppress this for a waveform hooked to streamdevice
# so we leave these disabled
# caput("%s:WFSETUP:WR.DISA" % prefix, 0, timeout=1)
# caput("%s:WFSTART:WR.DISA" % prefix, 0, timeout=1)
# caput("%s:WFSTOP:WR.DISA" % prefix, 0, timeout=1)
caput("%s:WFSETUP:WR" % prefix,
self.commands, timeout=1, datatype=DBR_CHAR_STR)
caput("%s:WFSTART:WR" % prefix,
self.startCmd, timeout=1, datatype=DBR_CHAR_STR)
caput("%s:WFSTOP:WR" % prefix,
self.stopCmd, timeout=1, datatype=DBR_CHAR_STR)
## Running from the same server to avoid EPICS ARRARY SIZE issus #
## export EPICS_CA_MAX_ARRAY_BYTES=800000
from numpy import *
import numpy as np
import sys
import time
import cothread
from cothread.catools import caput, caget
spPV= 'vSR-SOFB{}SP'
spSet = array(floor(random.rand(360)*0.0))
caput(spPV, spSet,wait=False)
print "vvvvvvvvvvvvvvvvvvvvvvvvv333"
import os
import re
from cothread.catools import caget, caput
if __name__ == "__main__":
f = open('../machine/nsls2/pvlist_2011_04_08.txt', 'r')
for pv in f.readlines():
if not pv.endswith('-SP\n'): continue
if pv.find('Cor:') < 0: continue
pv = pv.strip()
k = caget(pv.encode('ascii'))
if abs(k) > 0.0:
print pv, k
caput(pv, 0.0)
