[refactor] Use actual sensor info in control loop

This patch is the last link between coolr and the daemon. We now create
a dictionary of machine information inside the sensor manager, and give
this dictionary back to the daemon. The daemon can then use the real
data for control.

We still need to receive the target power from somewhere, and that will
come later.

nrm/daemon.py

@@ -97,11 +97,11 @@ class Daemon(object):
                                      application.state)
 
     def do_sensor(self):
-        self.sensor_state = self.sensor.do_update()
-        self.logger.info("current state: %r" % self.sensor_state)
+        self.machine_info = self.sensor.do_update()
+        self.logger.info("current state: %r" % self.machine_info)
 
     def do_control(self):
-        total_power = self.sensor_state['total_power']
+        total_power = self.machine_info['energy']['power']['total']
         self.target = random.randrange(0, 34)
         self.logger.info("target measure: " + str(self.target))
 
@@ -142,7 +142,7 @@ class Daemon(object):
         # create sensor manager and make first measurement
         self.sensor = sensor.SensorManager()
         self.sensor.start()
-        self.sensor_state = self.sensor.do_update()
+        self.machine_info = self.sensor.do_update()
 
         # setup periodic sensor updates
         self.sensor_cb = ioloop.PeriodicCallback(self.do_sensor, 1000)

nrm/sensor.py

@@ -6,7 +6,6 @@
     This module should be the only one interfacing with coolr.
 """
 from __future__ import print_function
-import random
 import coolr
 import coolr.clr_rapl
 import coolr.clr_hwmon
@@ -31,8 +30,7 @@ class SensorManager:
         self.rapl.stop_energy_counter()
 
     def do_update(self):
-        rapl_data = self.rapl.sample(accflag=True)
-        print(repr(rapl_data))
-        hwmon_data = self.coretemp.sample()
-        print(repr(hwmon_data))
-        return {'total_power': random.randrange(0, 34)}
+        machine_info = dict()
+        machine_info['energy'] = self.rapl.sample(accflag=True)
+        machine_info['temperature'] = self.coretemp.sample()
+        return machine_info