################################################################################################### 
# Scans with beam synchronous streams
################################################################################################### 

#Creating a stream, assuming a provided  named "dispatcher".
st1 = Stream("st1", dispatcher)

#Adding channels to that stream
s1=st1.addScalar("SINEG01-DICT210:GUN_CHARGE", "SINEG01-DICT210:GUN_CHARGE", 10, 0)
s2=st1.addScalar("SINEG01-DICT215:B1_CHARGE", "SINEG01-DICT215:B1_CHARGE", 10, 0)
s3=st1.addScalar("S10DI01-DICT025:B1_CHARGE", "S10DI01-DICT025:B1_CHARGE", 10, 0)
#s4=st1.addScalar("S10DI01-DICT025:B1_CHARGES", "S10DI01-DICT025:B1_CHARGES", 10, 0)


st1.setFilter("SINEG01-DICT210:GUN_CHARGE < 0.0")

st1.initialize()
#st1.start(True)    


#Filter

try:
 while(True):
    #The stream can be used on any conventional scan. The next stream value is sampled.
    #Readable values belong to same pulse id.
    print "Running tscan"
    tscan (st1.getReadables(), 10 , 0.1)

    #The bscan command performs samples every stream element 
    #Readable values belong to same pulse id.
    print "Running bscan"
    bscan (st1, 10)    #Sampling 10 elements

    #An individual stream channel can be used in a conventional scan, but in this case the stream
    #must be explicitly started, and there is no guarantee the values belong to the same PulseID 
    #(likely they are since as only cached values are taken).
    #st1.start(True)
    #tscan ([s1,s2], 10 , 0.1)

    #If waveform individual stream channel is used, and no size is provided in constructor/config,
    #then it must be read previously to the scan to update the size value.
    #tscan ([s1,s2,s3], 10 , 0.1)

    
    
finally:
    st1.close()