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progress with parsing and kafka

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wall_e
2025-10-30 11:51:16 +01:00
parent b810509156
commit c2ca5f699c
5 changed files with 241 additions and 33 deletions
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5
scripts/st.cmd
View File

@@ -8,9 +8,12 @@ require StreamGenerator, test
epicsEnvSet("INSTR", "SQ:TEST:")
epicsEnvSet("NAME", "SG")
drvAsynIPPortConfigure("ASYN_IP_PORT", "127.0.0.1:9071:9073 UDP", 0, 0, 0)
drvAsynIPPortConfigure("ASYN_IP_PORT", "127.0.0.1:9071:54321 UDP", 0, 0, 0)
asynStreamGenerator("ASYN_SG", "ASYN_IP_PORT", 4)
dbLoadRecords("$(StreamGenerator_DB)channels.db", "INSTR=$(INSTR), NAME=$(NAME), PORT=ASYN_SG, CHANNEL=0")
dbLoadRecords("$(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")
iocInit()

74
scripts/udp_gen.py Normal file
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@@ -0,0 +1,74 @@
import socket
import time
import random
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
header = [
0, 0, # buffer length in 16bit words (1, 0) == 1, (0, 1) == 256
0, 0x80, # buffer type (probably should be 0)
21, 0, # header length
0, 0, # buffer number
0, 0, # run id
0x3, # status
0, # id of sending module
0, 0, # timestamp low
0, 0, # timestamp mid
0, 0, # timestamp high
] + [0, 0] * 12 # parameters
data = [
0,
0,
0,
0,
0,
0
]
start_time = time.time_ns() // 100
while True:
# update buffer number
header[6] = (header[6] + 1) % 0xff
header[7] = (header[7] + (header[6] == 0)) % 0xff
# update timestamp
base_timestamp = time.time_ns() // 100 - start_time
t_low = base_timestamp & 0xffff
t_mid = (base_timestamp >> 16) & 0xffff
t_high = (base_timestamp >> 32) & 0xffff
header[12] = t_low & 0xff
header[13] = t_low >> 8
header[14] = t_mid & 0xff
header[15] = t_mid >> 8
header[16] = t_high & 0xff
header[17] = t_high >> 8
num_events = random.randint(0, 243)
# update buffer length
buffer_length = 21 + num_events * 3
header[0] = buffer_length & 0xff
header[1] = (buffer_length >> 8) & 0xff
tosend = list(header)
for i in range(num_events):
d = list(data)
# set monitor
d[5] = (1 << 7) | random.randint(0,3)
# 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
sock.sendto(bytes(tosend), ('127.0.0.1', 54321))
mv = memoryview(bytes(header)).cast('H')
print(f'Sent packet {mv[3]} with {num_events} events {base_timestamp}')
time.sleep(1)