[Android] Move perf utilities into devil.

build/android/pylib/perf/thermal_throttle.py

-# Copyright 2013 The Chromium Authors. All rights reserved.
+# Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import logging
+# pylint: disable=unused-wildcard-import
+# pylint: disable=wildcard-import
 
-
-class OmapThrottlingDetector(object):
-  """Class to detect and track thermal throttling on an OMAP 4."""
-  OMAP_TEMP_FILE = ('/sys/devices/platform/omap/omap_temp_sensor.0/'
-                    'temperature')
-
-  @staticmethod
-  def IsSupported(device):
-    return device.FileExists(OmapThrottlingDetector.OMAP_TEMP_FILE)
-
-  def __init__(self, device):
-    self._device = device
-
-  @staticmethod
-  def BecameThrottled(log_line):
-    return 'omap_thermal_throttle' in log_line
-
-  @staticmethod
-  def BecameUnthrottled(log_line):
-    return 'omap_thermal_unthrottle' in log_line
-
-  @staticmethod
-  def GetThrottlingTemperature(log_line):
-    if 'throttle_delayed_work_fn' in log_line:
-      return float([s for s in log_line.split() if s.isdigit()][0]) / 1000.0
-
-  def GetCurrentTemperature(self):
-    tempdata = self._device.ReadFile(OmapThrottlingDetector.OMAP_TEMP_FILE)
-    return float(tempdata) / 1000.0
-
-
-class ExynosThrottlingDetector(object):
-  """Class to detect and track thermal throttling on an Exynos 5."""
-  @staticmethod
-  def IsSupported(device):
-    return device.FileExists('/sys/bus/exynos5-core')
-
-  def __init__(self, device):
-    pass
-
-  @staticmethod
-  def BecameThrottled(log_line):
-    return 'exynos_tmu: Throttling interrupt' in log_line
-
-  @staticmethod
-  def BecameUnthrottled(log_line):
-    return 'exynos_thermal_unthrottle: not throttling' in log_line
-
-  @staticmethod
-  def GetThrottlingTemperature(_log_line):
-    return None
-
-  @staticmethod
-  def GetCurrentTemperature():
-    return None
-
-
-class ThermalThrottle(object):
-  """Class to detect and track thermal throttling.
-
-  Usage:
-    Wait for IsThrottled() to be False before running test
-    After running test call HasBeenThrottled() to find out if the
-    test run was affected by thermal throttling.
-  """
-
-  def __init__(self, device):
-    self._device = device
-    self._throttled = False
-    self._detector = None
-    if OmapThrottlingDetector.IsSupported(device):
-      self._detector = OmapThrottlingDetector(device)
-    elif ExynosThrottlingDetector.IsSupported(device):
-      self._detector = ExynosThrottlingDetector(device)
-
-  def HasBeenThrottled(self):
-    """True if there has been any throttling since the last call to
-       HasBeenThrottled or IsThrottled.
-    """
-    return self._ReadLog()
-
-  def IsThrottled(self):
-    """True if currently throttled."""
-    self._ReadLog()
-    return self._throttled
-
-  def _ReadLog(self):
-    if not self._detector:
-      return False
-    has_been_throttled = False
-    serial_number = str(self._device)
-    log = self._device.RunShellCommand('dmesg -c')
-    degree_symbol = unichr(0x00B0)
-    for line in log:
-      if self._detector.BecameThrottled(line):
-        if not self._throttled:
-          logging.warning('>>> Device %s thermally throttled', serial_number)
-        self._throttled = True
-        has_been_throttled = True
-      elif self._detector.BecameUnthrottled(line):
-        if self._throttled:
-          logging.warning('>>> Device %s thermally unthrottled', serial_number)
-        self._throttled = False
-        has_been_throttled = True
-      temperature = self._detector.GetThrottlingTemperature(line)
-      if temperature is not None:
-        logging.info(u'Device %s thermally throttled at %3.1f%sC',
-                     serial_number, temperature, degree_symbol)
-
-    if logging.getLogger().isEnabledFor(logging.DEBUG):
-      # Print current temperature of CPU SoC.
-      temperature = self._detector.GetCurrentTemperature()
-      if temperature is not None:
-        logging.debug(u'Current SoC temperature of %s = %3.1f%sC',
-                      serial_number, temperature, degree_symbol)
-
-      # Print temperature of battery, to give a system temperature
-      dumpsys_log = self._device.RunShellCommand('dumpsys battery')
-      for line in dumpsys_log:
-        if 'temperature' in line:
-          btemp = float([s for s in line.split() if s.isdigit()][0]) / 10.0
-          logging.debug(u'Current battery temperature of %s = %3.1f%sC',
-                        serial_number, btemp, degree_symbol)
-
-    return has_been_throttled
-
+from devil.android.perf.thermal_throttle import *