lin-epics-modules/StreamGenerator
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can receive both monitor and detector udp events and send them to different kafka topics

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wall_e
2025-10-30 16:48:33 +01:00
parent 4c1741bd4b
commit 750436732c
4 changed files with 306 additions and 156 deletions
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1
scripts/st.cmd
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@@ -15,5 +15,6 @@ dbLoadRecords("$(StreamGenerator_DB)channels.db", "INSTR=$(INSTR), NAME=$(NAME),
dbLoadRecords("$(StreamGenerator_DB)channels.db", "INSTR=$(INSTR), NAME=$(NAME), PORT=ASYN_SG, CHANNEL=1")
dbLoadRecords("$(StreamGenerator_DB)channels.db", "INSTR=$(INSTR), NAME=$(NAME), PORT=ASYN_SG, CHANNEL=2")
dbLoadRecords("$(StreamGenerator_DB)channels.db", "INSTR=$(INSTR), NAME=$(NAME), PORT=ASYN_SG, CHANNEL=3")
dbLoadRecords("$(StreamGenerator_DB)channels.db", "INSTR=$(INSTR), NAME=$(NAME), PORT=ASYN_SG, CHANNEL=4")
iocInit()

51
scripts/udp_gen.py
View File

@@ -54,19 +54,50 @@ while True:
tosend = list(header)
for i in range(num_events):
d = list(data)
# I believe, that in our case we never mix monitor and detector events as
# the monitors should have id 0 and the detector events 1-9 so I have
# excluded that posibility here. That would, however, if true mean we could
# reduce also the number of checks on the parsing side of things...
# set monitor
d[5] = (1 << 7) | random.randint(0,3)
is_monitor = random.randint(0, 9)
# update trigger timestamp
event_timestamp = (time.time_ns() // 100) - base_timestamp
d[0] = event_timestamp & 0xff
d[1] = (event_timestamp >> 8) & 0xff
d[2] = (event_timestamp >> 16) & 0x07
if is_monitor > 3:
tosend += d
for i in range(num_events):
d = list(data)
monitor = random.randint(0,3)
d[5] = (1 << 7) | monitor
# update trigger timestamp
event_timestamp = (time.time_ns() // 100) - base_timestamp
d[0] = event_timestamp & 0xff
d[1] = (event_timestamp >> 8) & 0xff
d[2] = (event_timestamp >> 16) & 0x07
tosend += d
else:
for i in range(num_events):
d = list(data)
amplitude = random.randint(0, 255)
x_pos = random.randint(0, 1023)
y_pos = random.randint(0, 1023)
event_timestamp = (time.time_ns() // 100) - base_timestamp
d[5] = (0 << 7) | (amplitude >> 1)
d[4] = ((amplitude & 0x01) << 7) | (y_pos >> 3)
d[3] = ((y_pos << 5) & 0xE0) | (x_pos >> 5)
d[2] = ((x_pos << 3) & 0xF8)
d[0] = event_timestamp & 0xff
d[1] = (event_timestamp >> 8) & 0xff
d[2] |= (event_timestamp >> 16) & 0x07
tosend += d
sock.sendto(bytes(tosend), ('127.0.0.1', 54321))
mv = memoryview(bytes(header)).cast('H')