1 files changed, 50 insertions, 0 deletions
diff --git a/catapult/telemetry/telemetry/internal/platform/power_monitor/__init__.py b/catapult/telemetry/telemetry/internal/platform/power_monitor/__init__.py
new file mode 100644
index 00000000..4c3cf453
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+++ b/catapult/telemetry/telemetry/internal/platform/power_monitor/__init__.py
@@ -0,0 +1,50 @@
+# Copyright 2014 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
+
+from telemetry.core import exceptions
+
+
+class PowerMonitor(object):
+  """A power profiler.
+
+  Provides an interface to register power consumption during a test.
+  """
+  def __init__(self):
+    self._monitoring = False
+
+  def CanMonitorPower(self):
+    """Returns True iff power can be monitored asynchronously via
+    StartMonitoringPower() and StopMonitoringPower().
+    """
+    return False
+
+  def CanMeasurePerApplicationPower(self):
+    """Returns True if the power monitor can measure power for the target
+    application in isolation. False if power measurement is for full system
+    energy consumption."""
+    return False
+
+  def _CheckStart(self):
+    assert not self._monitoring, "Already monitoring power."
+    self._monitoring = True
+
+  def _CheckStop(self):
+    assert self._monitoring, "Not monitoring power."
+    self._monitoring = False
+
+  def StartMonitoringPower(self, browser):
+    """Starts monitoring power utilization statistics.
+
+    See Platform#StartMonitoringPower for the arguments format.
+    """
+    raise NotImplementedError()
+
+  def StopMonitoringPower(self):
+    """Stops monitoring power utilization and returns collects stats
+
+    See Platform#StopMonitoringPower for the return format.
+    """
+    raise NotImplementedError()