def main():
"""main"""
#create the object for getting CPU data
data_collector = SystemDataCollector(5)
#create the thread in charge of calling the data collector
system_monitor = WorkerThread(data_collector.collect)
#create the modbus TCP simulator and one slave
#and one block of analog inputs
simu = Simulator(TcpServer())
slave = simu.server.add_slave(1)
slave.add_block("Cpu", defines.ANALOG_INPUTS, 0, 10)
try:
LOGGER.info("'quit' for closing the server")
#start the data collect
system_monitor.start()
#start the simulator! will block until quit command is received
simu.start()
except Exception as excpt:
print excpt
finally:
#close the simulator
simu.close()
#stop the data collect
system_monitor.stop()
def collect(self):
"""get the CPU load thanks to WMI"""
try:
self._count += 1
if self._count >= self._max_count:
self._count = 0
#WMI get the load percentage of the machine
from win32com.client import GetObject
wmi = GetObject('winmgmts:')
cpu = wmi.InstancesOf('Win32_Processor')
for (_cpu, i) in zip(cpu, xrange(10)):
value = _cpu.Properties_('LoadPercentage').Value
cpu_usage = int(str(value)) if value else 0
#execute a RPC command for changing the value
self._simu.set_values(1, "Cpu", i, (cpu_usage, ))
except Exception as excpt:
LOGGER.debug("SystemDataCollector error: %s", str(excpt))
time.sleep(0.1)
